# configure.ac for GNU Objective-C library # Process this file with autoconf to produce a configure script. # # Copyright (C) 1993,1994, 1995, 1996, 1997 Free Software Foundation, Inc. # # Written by: Andrew Kachites McCallum # Dept. of Computer Science, U. of Rochester, Rochester, NY 14627 # # This file is part of the GNU Objective-C library. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public # License along with this library; if not, write to the Free # Software Foundation, Inc., 51 Franklin Street, Fifth Floor, # Boston, MA 02111 USA builtin(include, config/objc-con-autoload.m4)dnl builtin(include, config/objc-sys-dynamic.m4)dnl builtin(include, config/procfs-exe-link.m4)dnl builtin(include, config/procfs.m4)dnl builtin(include, config/pathxml.m4)dnl builtin(include, config/pathtls.m4)dnl builtin(include, config/codeset.m4)dnl builtin(include, config/addlibrarypath.m4)dnl AC_INIT AC_CONFIG_SRCDIR([Source/NSArray.m]) # If GNUSTEP_MAKEFILES is undefined, try to use gnustep-config to determine it. if test -z "$GNUSTEP_MAKEFILES"; then GNUSTEP_MAKEFILES=`gnustep-config --variable=GNUSTEP_MAKEFILES 2>&5` fi # If LIBRARY_COMBO is undefined, try to use gnustep-config to determine it. if test -z "$LIBRARY_COMBO"; then LIBRARY_COMBO=`gnustep-config --variable=LIBRARY_COMBO 2>&5` fi exceptions=`gnustep-config --objc-flags | grep _NATIVE_OBJC_EXCEPTIONS 2>&5` if test -z "$exceptions"; then exceptions=no else exceptions=yes fi if test -z "$GNUSTEP_MAKEFILES"; then AC_MSG_ERROR([You must have the gnustep-make package installed and set up the GNUSTEP_MAKEFILES environment variable to contain the path to the makefiles directory before configuring!]) fi # We shouldn't be loading GNUstep.sh here. It would load in a lot of # variables which might get confused with the ones that will be used # at runtime. We will load it later once we have determined (and # saved) the runtime configuration. # This variable might get temporarily overwritten with the # GNUSTEP_MAKEFILES of the runtime configuration, make sure we keep # track of the original one. CURRENT_GNUSTEP_MAKEFILES is the one # that we use to locate the actual gnustep-make installation that # will build the software. CURRENT_GNUSTEP_MAKEFILES="$GNUSTEP_MAKEFILES" #-------------------------------------------------------------------- # Use config.guess, config.sub and install-sh provided by gnustep-make #-------------------------------------------------------------------- AC_CONFIG_AUX_DIR($CURRENT_GNUSTEP_MAKEFILES) #-------------------------------------------------------------------- # Use a .h file with #define's, instead of -D command-line switches #-------------------------------------------------------------------- AC_CONFIG_HEADER(Headers/Additions/GNUstepBase/config.h) #-------------------------------------------------------------------- # Determine the host, build, and target systems #-------------------------------------------------------------------- AC_CANONICAL_TARGET([]) # # Now load the values to be used in locating libraries etc used when # building the base library ... as supplied by the gnustep-make package # # It looks like we ought to source the whole GNUstep.sh here, and even # ask it to output all variables! That way we have access to (eg) # GNUSTEP_SYSTEM_HEADERS below. # # We need to unset any values that we really need, or existing settings # would be used by GNUstep.sh # unset GNUSTEP_SYSTEM_HEADERS unset GNUSTEP_SYSTEM_LIBRARIES GNUSTEP_MAKEFILES="$CURRENT_GNUSTEP_MAKEFILES" GNUSTEP_SH_EXPORT_ALL_VARIABLES=yes . "$CURRENT_GNUSTEP_MAKEFILES/GNUstep.sh" unset GNUSTEP_SH_EXPORT_ALL_VARIABLES # For backwards compatibility, define GNUSTEP_SYSTEM_HEADERS from # GNUSTEP_SYSTEM_ROOT if not set yet. if test x"$GNUSTEP_SYSTEM_HEADERS" = x""; then GNUSTEP_SYSTEM_HEADERS="$GNUSTEP_SYSTEM_ROOT/Library/Headers" fi if test x"$GNUSTEP_SYSTEM_LIBRARIES" = x""; then GNUSTEP_SYSTEM_LIBRARIES="$GNUSTEP_SYSTEM_ROOT/Library/Libraries" fi # # Add standard library and header directories for configure to use to locate # plain C developer headers/libraries which haver been installed in the # GNUstep hierarchy. # CPPFLAGS="$CPPFLAGS -I$GNUSTEP_SYSTEM_HEADERS -I$GNUSTEP_LOCAL_HEADERS" LDFLAGS="$LDFLAGS -L$GNUSTEP_SYSTEM_LIBRARIES -L$GNUSTEP_LOCAL_LIBRARIES" #-------------------------------------------------------------------- # Find the compiler #-------------------------------------------------------------------- AC_PROG_CC AC_PROG_CPP AC_PATH_PROG(WHOAMI, whoami, echo, $PATH:/usr/ucb) #-------------------------------------------------------------------- # specific target_os options #-------------------------------------------------------------------- INCLUDE_FLAGS="$CPPFLAGS" LDIR_FLAGS="$LDFLAGS" # This is just for configuring. Later, in config.make, INCLUDE_FLAGS # goes in CONFIG_SYSTEM_INCL and LIBS goes in CONFIG_SYSTEM_LIBS case "$target_os" in freebsd* | openbsd* ) CPPFLAGS="$CPPFLAGS -I/usr/local/include" LDFLAGS="$LDFLAGS -L/usr/local/lib";; netbsd*) CPPFLAGS="$CPPFLAGS -I/usr/pkg/include" LDFLAGS="$LDFLAGS -Wl,-R/usr/pkg/lib -L/usr/pkg/lib";; esac #-------------------------------------------------------------------- # Set Apple/Darwin/OSX/NeXT information for other tests #-------------------------------------------------------------------- OBJC_WITH_GC=no OBJC_RUNTIME_LIB=`echo $LIBRARY_COMBO | tr '-' ' ' | awk '{print $1}'` AC_MSG_CHECKING(the Objective-C runtime) if test "$OBJC_RUNTIME_LIB" = "nx" -o "$OBJC_RUNTIME_LIB" = "apple"; then AC_MSG_RESULT(NeXT) LIBOBJC='-lobjc' OBJCFLAGS="-fnext-runtime -DNeXT_RUNTIME" elif test "$OBJC_RUNTIME_LIB" = "gnugc"; then AC_MSG_RESULT(GNU) LIBOBJC='-lobjc_gc -ldl -lgc' OBJCFLAGS="-fgnu-runtime" OBJC_WITH_GC=yes else AC_MSG_RESULT(GNU) LIBOBJC='-lobjc' OBJCFLAGS="-fgnu-runtime" fi #-------------------------------------------------------------------- # Miscellaneous flags #-------------------------------------------------------------------- # Check to see if the libobjc library is in our GNUSTEP_SYSTEM_LIBRARIES. # If so, there are probably other libraries that we want there also, so # leave the proper includes in CPPFLAGS and LDFLAGS AC_MSG_CHECKING(for custom shared objc library) AC_CACHE_VAL(gs_cv_objc_libdir, [dnl gs_cv_objc_libdir=NONE gs_cv_objc_incdir=NONE # Try GNUSTEP_SYSTEM_LIBRARIES first if test "$GNUSTEP_IS_FLATTENED" = yes; then GNUSTEP_LDIR="$GNUSTEP_SYSTEM_LIBRARIES" GNUSTEP_HDIR="$GNUSTEP_SYSTEM_HEADERS" else GNUSTEP_LDIR="$GNUSTEP_SYSTEM_LIBRARIES/$obj_dir" GNUSTEP_HDIR="$GNUSTEP_SYSTEM_HEADERS/$LIBRARY_COMBO" fi if test -f "$GNUSTEP_HDIR/objc/objc.h"; then if test -f "$GNUSTEP_LDIR/libobjc.a" -o -f "$GNUSTEP_LDIR/libobjc.so" -o -f "$GNUSTEP_LDIR/libobjc.dll.a" -o -f "$GNUSTEP_LDIR/libobjc-gnu.dylib" -o -f "$GNUSTEP_LDIR/libobjc_gc.a" -o -f "$GNUSTEP_LDIR/libobjc_gc.so" -o -f "$GNUSTEP_LDIR/libobjc_gc.dll.a" -o -f "$GNUSTEP_LDIR/libobjc_gc-gnu.dylib"; then gs_cv_objc_libdir="$GNUSTEP_LDIR" gs_cv_objc_incdir="$GNUSTEP_HDIR" fi fi # Try GNUSTEP_NETWORK_LIBRARIES second (override GNUSTEP_SYSTEM if # found) if test "$GNUSTEP_IS_FLATTENED" = yes; then GNUSTEP_LDIR="$GNUSTEP_NETWORK_LIBRARIES" GNUSTEP_HDIR="$GNUSTEP_NETWORK_HEADERS" else GNUSTEP_LDIR="$GNUSTEP_NETWORK_LIBRARIES/$obj_dir" GNUSTEP_HDIR="$GNUSTEP_NETWORK_HEADERS/$LIBRARY_COMBO" fi if test -f "$GNUSTEP_HDIR/objc/objc.h"; then if test -f "$GNUSTEP_LDIR/libobjc.a" -o -f "$GNUSTEP_LDIR/libobjc.so" -o -f "$GNUSTEP_LDIR/libobjc.dll.a" -o -f "$GNUSTEP_LDIR/libobjc-gnu.dylib" -o -f "$GNUSTEP_LDIR/libobjc_gc.a" -o -f "$GNUSTEP_LDIR/libobjc_gc.so" -o -f "$GNUSTEP_LDIR/libobjc_gc.dll.a" -o -f "$GNUSTEP_LDIR/libobjc_gc-gnu.dylib"; then gs_cv_objc_libdir="$GNUSTEP_LDIR" gs_cv_objc_incdir="$GNUSTEP_HDIR" fi fi # Try GNUSTEP_LOCAL_LIBRARIES third (override GNUSTEP_SYSTEM and # GNUSTEP_NETWORK if found) if test "$GNUSTEP_IS_FLATTENED" = yes; then GNUSTEP_LDIR="$GNUSTEP_LOCAL_LIBRARIES" GNUSTEP_HDIR="$GNUSTEP_LOCAL_HEADERS" else GNUSTEP_LDIR="$GNUSTEP_LOCAL_LIBRARIES/$obj_dir" GNUSTEP_HDIR="$GNUSTEP_LOCAL_HEADERS/$LIBRARY_COMBO" fi if test -f "$GNUSTEP_HDIR/objc/objc.h"; then if test -f "$GNUSTEP_LDIR/libobjc.a" -o -f "$GNUSTEP_LDIR/libobjc.so" -o -f "$GNUSTEP_LDIR/libobjc.dll.a" -o -f "$GNUSTEP_LDIR/libobjc-gnu.dylib" -o -f "$GNUSTEP_LDIR/libobjc_gc.a" -o -f "$GNUSTEP_LDIR/libobjc_gc.so" -o -f "$GNUSTEP_LDIR/libobjc_gc.dll.a" -o -f "$GNUSTEP_LDIR/libobjc_gc-gnu.dylib"; then gs_cv_objc_libdir="$GNUSTEP_LDIR" gs_cv_objc_incdir="$GNUSTEP_HDIR" fi fi ]) AC_MSG_RESULT($gs_cv_objc_libdir) if test "$gs_cv_objc_libdir" != "NONE"; then # # The following one is so that headers of custom libraries into # $GNUSTEP_HDIR are used before the standard ones # INCLUDE_FLAGS="$INCLUDE_FLAGS -I$gs_cv_objc_incdir" LDIR_FLAGS="$LDIR_FLAGS -L$gs_cv_objc_libdir/$LIBRARY_COMBO -L$gs_cv_objc_libdir" CPPFLAGS="$CPPFLAGS -I$gs_cv_objc_incdir" LDFLAGS="$LDFLAGS -L$gs_cv_objc_libdir" fi #-------------------------------------------------------------------- # Check if Objective-C is installed #-------------------------------------------------------------------- AC_CHECK_HEADERS(objc/runtime.h) AC_CHECK_HEADERS(objc/objc.h) if test $ac_cv_header_objc_objc_h = no; then echo "Check to make sure you have a full installation of the GCC" echo "compiler that includes the Objective-C headers and libraries" AC_MSG_ERROR(Could not find Objective-C headers) fi if test $OBJC_WITH_GC = yes; then AC_CHECK_HEADERS(gc.h, gc_ok=yes, gc_ok=no) if test "$gc_ok" = no; then AC_MSG_ERROR([Garbage collection was required, but the gc.h header couldn't be found.]) fi saved_LIBS="$LIBS" LIBS+=" -lgc" AC_CHECK_FUNC(GC_malloc, gc_ok=yes, gc_ok=no) if test "$gc_ok" = no; then AC_MSG_ERROR([Garbage collection was required, but the gc library couldn't be found.]) fi AC_CHECK_FUNC(GC_register_my_thread) if test "$ac_cv_func_GC_register_my_thread" = yes; then AC_DEFINE(HAVE_GC_REGISTER_MY_THREAD,1, [Define if GC_register_my_thread function is available]) fi AC_CHECK_FUNC(GC_allow_register_threads) if test "$ac_cv_func_GC_allow_register_threads" = yes; then AC_DEFINE(HAVE_GC_ALLOW_REGISTER_THREADS,1, [Define if GC_allow_register_threads function is available]) fi LIBS="-lobjc_gc -ldl" AC_CHECK_FUNC(class_ivar_set_gcinvisible, gc_ok=yes, gc_ok=no) if test "$gc_ok" = no; then AC_MSG_ERROR([Garbage collection was required, but the gc runtime couldn't be found.]) fi LIBS="$saved_LIBS" AC_SUBST(OBJC_WITH_GC) fi #-------------------------------------------------------------------- # Check for strange network stuff used by gdomap #-------------------------------------------------------------------- AC_MSG_NOTICE(for gdomap network details) AC_MSG_CHECKING(for variable length socket addresses) AC_TRY_COMPILE([ #include #include #include ], [struct ifreq s; s.ifr_addr.sa_len = 0;], sa_len=1, sa_len=0) if test $sa_len = 1; then AC_MSG_RESULT([found]) AC_DEFINE(HAVE_SA_LEN,1, [Define if your system has variable length network addresses]) else AC_MSG_RESULT([not found]) fi AC_MSG_CHECKING(for gcc visibility attribute support) saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Werror" AC_COMPILE_IFELSE([ #include int foo() __attribute__ ((visibility("internal"))); int foo(){ return 1; } int main(){ return foo(); }], AC_MSG_RESULT([found]) gs_visibility=1, AC_MSG_RESULT([not present]) gs_visibility=0 ) AC_DEFINE_UNQUOTED(HAVE_VISIBILITY_ATTRIBUTE,$gs_visibility, [Says whether the visibility attribute works]) CFLAGS="$saved_CFLAGS" #-------------------------------------------------------------------- # Check if system has buggy SO_REUSEADDR #-------------------------------------------------------------------- AC_MSG_CHECKING(whether SO_REUSEADDR is broken) AC_TRY_RUN([#include "$srcdir/config/config.reuseaddr.c"], reuseaddr_ok=1, reuseaddr_ok=0, reuseaddr_ok=0) if test $reuseaddr_ok = 0; then AC_DEFINE(BROKEN_SO_REUSEADDR,1, [Define if SO_REUSEADDR is broken on this system]) echo echo "The SO_REUSEADDR socket option for controlling re-use of network" echo "sockets immediately after shutdown appears to be broken on this" echo "machine. Networking code will be built without using this" echo "feature." echo "The effect of this lack is that when a network service is shut" echo "down, it cannot be re-started on the same network port until" echo "an operating-system timeout has expired." echo "For servers other than gdomap, GNUstep does not normally need" echo "a particular network port, so the problem is unlikely to arise." AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi #-------------------------------------------------------------------- # Check for thread flags for libobjc. #-------------------------------------------------------------------- # AC_MSG_CHECKING(for objc threading flags) # # Get them from gnustep-make which contains the real code to get them # objc_threaded=`grep objc_threaded: $CURRENT_GNUSTEP_MAKEFILES/$lobj_dir/config.make | sed -e 's/objc_threaded:=//'` # AC_MSG_RESULT($objc_threaded) #-------------------------------------------------------------------- # Byte order information needed for foundation headers. #-------------------------------------------------------------------- AC_C_BIGENDIAN if test $ac_cv_c_bigendian = yes; then GS_WORDS_BIGENDIAN=1 else GS_WORDS_BIGENDIAN=0 fi AC_SUBST(GS_WORDS_BIGENDIAN) #-------------------------------------------------------------------- # Type size information needed for foundation headers. #-------------------------------------------------------------------- AC_CHECK_SIZEOF(void*) GS_SINT8="signed char" GS_UINT8="unsigned char" AC_SUBST(GS_SINT8) AC_SUBST(GS_UINT8) AC_CHECK_SIZEOF(short) AC_SUBST(ac_cv_sizeof_short) AC_CHECK_SIZEOF(int) AC_SUBST(ac_cv_sizeof_int) AC_CHECK_SIZEOF(long) AC_SUBST(ac_cv_sizeof_long) AC_CHECK_SIZEOF(long long) AC_SUBST(ac_cv_sizeof_long_long) AC_CHECK_SIZEOF(float) AC_SUBST(ac_cv_sizeof_float) AC_CHECK_SIZEOF(double) AC_SUBST(ac_cv_sizeof_double) AC_SUBST(ac_cv_sizeof_voidp) if test $ac_cv_sizeof_voidp = $ac_cv_sizeof_int; then GS_SADDR="int" GS_UADDR="unsigned int" else if test $ac_cv_sizeof_voidp = $ac_cv_sizeof_long; then GS_SADDR="long" GS_UADDR="unsigned long" else if test $ac_cv_sizeof_voidp = $ac_cv_sizeof_long_long; then GS_SADDR="long long" GS_UADDR="unsigned long long" else AC_MSG_ERROR([Unable to find integer of same size as void*]) fi fi fi AC_SUBST(GS_SADDR) AC_SUBST(GS_UADDR) if test $ac_cv_sizeof_short = 2; then GS_SINT16="signed short" GS_UINT16="unsigned short" else if test $ac_cv_sizeof_int = 2; then GS_SINT16="signed int" GS_UINT16="unsigned int" else AC_MSG_ERROR([Unable to determine type for 16-bit integer]) fi fi AC_SUBST(GS_SINT16) AC_SUBST(GS_UINT16) if test $ac_cv_sizeof_int = 4; then GS_SINT32="signed int" GS_UINT32="unsigned int" else if test $ac_cv_sizeof_long = 4; then GS_SINT32="signed long" GS_UINT32="unsigned long" else if test $ac_cv_sizeof_short = 4; then GS_SINT32="signed short" GS_UINT32="unsigned short" else AC_MSG_ERROR([Unable to determine type for 32-bit integer]) fi fi fi AC_SUBST(GS_SINT32) AC_SUBST(GS_UINT32) GS_HAVE_I64=1 if test $ac_cv_sizeof_int = 8; then GS_SINT64="signed int" GS_UINT64="unsigned int" else if test $ac_cv_sizeof_long = 8; then GS_SINT64="signed long" GS_UINT64="unsigned long" else if test $ac_cv_sizeof_long_long = 8; then GS_SINT64="signed long long" GS_UINT64="unsigned long long" else # 64-bit ints not supported - but we need a dummy type for byte-swapping # of 64-bit values arriving from another system. GS_SINT64="struct { gsu8 a[8]; }" GS_UINT64="struct { gsu8 a[8]; }" GS_HAVE_I64=0 fi fi fi AC_SUBST(GS_SINT64) AC_SUBST(GS_UINT64) AC_SUBST(GS_HAVE_I64) GS_HAVE_I128=1 if test $ac_cv_sizeof_long = 16; then GS_SINT128="signed long" GS_UINT128="unsigned long" else if test $ac_cv_sizeof_long_long = 16; then GS_SINT128="signed long long" GS_UINT128="unsigned long long" else # 128-bit ints not supported - but we need a dummy type for byte-swapping # of 128-bit values arriving from another system. GS_SINT128="struct { gsu8 a[16]; }" GS_UINT128="struct { gsu8 a[16]; }" GS_HAVE_I128=0 fi fi AC_SUBST(GS_SINT128) AC_SUBST(GS_UINT128) AC_SUBST(GS_HAVE_I128) if test $ac_cv_sizeof_float = 4; then GS_FLT32="float" else AC_MSG_ERROR([Unable to determine type for 32-bit float]) fi AC_SUBST(GS_FLT32) if test $ac_cv_sizeof_double = 8; then GS_FLT64="double" else AC_MSG_ERROR([Unable to determine type for 64-bit float]) fi AC_SUBST(GS_FLT64) #-------------------------------------------------------------------- # Type-size information for encoding into archives using NSArchiver etc. #-------------------------------------------------------------------- if test $ac_cv_sizeof_short = 2; then _GSC_S_SHT=_GSC_I16 else _GSC_S_SHT=_GSC_I32 fi AC_SUBST(_GSC_S_SHT) if test $ac_cv_sizeof_int = 2; then _GSC_S_INT=_GSC_I16 else if test $ac_cv_sizeof_int = 4; then _GSC_S_INT=_GSC_I32 else if test $ac_cv_sizeof_int = 8; then _GSC_S_INT=_GSC_I64 else if test $ac_cv_sizeof_int = 16; then _GSC_S_INT=_GSC_I128 fi fi fi fi AC_SUBST(_GSC_S_INT) if test $ac_cv_sizeof_long = 4; then _GSC_S_LNG=_GSC_I32 else if test $ac_cv_sizeof_long = 8; then _GSC_S_LNG=_GSC_I64 else if test $ac_cv_sizeof_long = 16; then _GSC_S_LNG=_GSC_I128 fi fi fi AC_SUBST(_GSC_S_LNG) if test $ac_cv_sizeof_long_long = 4; then _GSC_S_LNG_LNG=_GSC_I32 else if test $ac_cv_sizeof_long_long = 8; then _GSC_S_LNG_LNG=_GSC_I64 else if test $ac_cv_sizeof_long_long = 16; then _GSC_S_LNG_LNG=_GSC_I128 fi fi fi AC_SUBST(_GSC_S_LNG_LNG) #-------------------------------------------------------------------- # Setup dynamic linking #-------------------------------------------------------------------- OBJC_SYS_DYNAMIC_LINKER() if test x"$ac_cv_lib_dl_dladdr" = xyes; then AC_DEFINE([HAVE_DLADDR], 1, [Define if you have the dladdr function in the dl library]) fi #-------------------------------------------------------------------- # Check whether Objective-C /really/ works #-------------------------------------------------------------------- AC_MSG_CHECKING(whether objc really works) saved_LIBS="$LIBS" saved_CPPFLAGS="$CPPFLAGS" LIBS="$LIBS $LIBOBJC" CPPFLAGS="$CPPFLAGS $OBJCFLAGS -x objective-c" if test x"$objc_threaded" != x""; then LIBS="$LIBS $objc_threaded" fi LIBS="$LIBS $extra_LIBS" AC_CACHE_VAL(objc_works, AC_TRY_RUN([#include "$srcdir/config/config.objc.m"], objc_works=yes, objc_works=no, objc_works=yes) ) if test $objc_works = yes; then AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) echo "I don't seem to be able to use your Objective-C compiler to produce" echo "working binaries! Please check your Objective-C compiler installation." echo "If you are using gcc-3.x make sure that your compiler's libgcc_s and libobjc" echo "can be found by the dynamic linker - usually that requires you to play" echo "with LD_LIBRARY_PATH or /etc/ld.so.conf." echo "Please refer to your compiler installation instructions for more help." AC_MSG_ERROR(The Objective-C compiler does not work or is not installed properly.) fi # Don't revert any Objective-C flags as they are used in the next test #--------------------------------------------------------------------- # Guess if we are using a compiler which allows us to change the class # to be used for constant strings by using the -fconstant-string-class # option. If that is the case, we change it to NSConstantString. #--------------------------------------------------------------------- strclass_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -fconstant-string-class=FooConstantString" AC_MSG_CHECKING(if the compiler supports -fconstant-string-class) AC_CACHE_VAL(objc_compiler_supports_constant_string_class, AC_TRY_RUN([#include "$srcdir/config/config.constant-string-class.m"], objc_compiler_supports_constant_string_class=yes, objc_compiler_supports_constant_string_class=no, objc_compiler_supports_constant_string_class=no) ) if test $objc_compiler_supports_constant_string_class = yes; then NX_CONST_STRING_OBJCFLAGS="-fconstant-string-class=NSConstantString" NX_CONST_STRING_CLASS=NSConstantString AC_MSG_RESULT(yes) else NX_CONST_STRING_OBJCFLAGS="" NX_CONST_STRING_CLASS=NXConstantString AC_MSG_RESULT(no) fi CPPFLAGS="$strclass_CPPFLAGS" AC_SUBST(NX_CONST_STRING_OBJCFLAGS) AC_SUBST(NX_CONST_STRING_CLASS) # Don't revert any Objective-C flags as they are used in the next test #--------------------------------------------------------------------- # Guess if we are using a compiler which has the (GNU extension) +load # method which is executed before main. # Defines HAVE_LOAD_METHOD if +load methods are called before main. # Needed by NSProcessInfo.m #--------------------------------------------------------------------- AC_MSG_CHECKING(if +load method is executed before main) AC_CACHE_VAL(objc_load_method_worked, AC_TRY_RUN([#include "$srcdir/config/config.loadtest.m"], objc_load_method_worked=yes, objc_load_method_worked=no, objc_load_method_worked=no) ) if test $objc_load_method_worked = yes; then AC_DEFINE(HAVE_LOAD_METHOD,1, [Define if your Obj-C compiler calls +load methods before main]) AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi # Don't revert any Objective-C flags as they are used in the next test #-------------------------------------------------------------------- # Check for ability to add a thread in runtime #-------------------------------------------------------------------- AC_CHECK_FUNCS(objc_thread_add) #-------------------------------------------------------------------- # Check for ObjC2 support in runtime #-------------------------------------------------------------------- AC_CHECK_FUNCS(objc_setProperty) if test $ac_cv_func_objc_setProperty = yes ; then OBJC2RUNTIME=yes else OBJC2RUNTIME=no fi AC_SUBST(OBJC2RUNTIME) # Don't revert any Objective-C flags as they are used in the next test #-------------------------------------------------------------------- # get_uninstalled_dtable used by behavior.m and objc-load.m #-------------------------------------------------------------------- AC_EGREP_HEADER(objc_get_uninstalled_dtable, objc/objc-api.h, AC_DEFINE(HAVE_OBJC_GET_UNINSTALLED_DTABLE,1, [ Define if objc-api.h defines this function]),) # Don't revert any Objective-C flags as they are used in the next test #-------------------------------------------------------------------- # One of these is needed by for handling uncaught exceptions #-------------------------------------------------------------------- AC_MSG_CHECKING(for objc_set_unexpected() in runtime) AC_LINK_IFELSE([#include "$srcdir/config/config.set_unexpected.m"], have_set_unexpected=yes, have_set_unexpected=no) if test $have_set_unexpected = yes; then AC_DEFINE(HAVE_SET_UNEXPECTED,1, [Define if libobjc has the objc_set_unexpected() function]) fi AC_MSG_RESULT($have_set_unexpected) AC_MSG_CHECKING(for _objc_unexpected_exception in runtime) AC_LINK_IFELSE([#include "$srcdir/config/config.unexpected.m"], have_unexpected=yes, have_unexpected=no) if test $have_unexpected = yes; then AC_DEFINE(HAVE_UNEXPECTED,1, [Define if libobjc has the _objc_unexpected_exception callback]) fi AC_MSG_RESULT($have_unexpected) # Don't revert any Objective-C flags as they are used in the next test #-------------------------------------------------------------------- # Function needed by @synchronize directive #-------------------------------------------------------------------- AC_CHECK_FUNCS(objc_sync_enter) HAVE_OBJC_SYNC_ENTER=no if test $ac_cv_func_objc_sync_enter = yes ; then HAVE_OBJC_SYNC_ENTER=yes fi AC_SUBST(HAVE_OBJC_SYNC_ENTER) LIBS="$saved_LIBS" CPPFLAGS="$saved_CPPFLAGS" #-------------------------------------------------------------------- # Generic settings needed by NSZone.m #-------------------------------------------------------------------- AC_TYPE_SIZE_T AC_C_INLINE #-------------------------------------------------------------------- # Following header checks needed for bzero in Storage.m and other places #-------------------------------------------------------------------- AC_HEADER_STDC AC_CHECK_HEADERS(string.h memory.h alloca.h) #-------------------------------------------------------------------- # Following header check needed NSConnection.h #-------------------------------------------------------------------- AC_CHECK_HEADERS(float.h) #-------------------------------------------------------------------- # Header files and functions for files and filesystems #-------------------------------------------------------------------- AC_CHECK_HEADERS(sys/stat.h sys/vfs.h sys/statfs.h sys/statvfs.h pwd.h grp.h) AC_CHECK_HEADERS(sys/cdefs.h sys/syslimits.h sys/param.h) # Twisted header checks for some BSDs with stupid interdependencies AC_CHECK_HEADERS([sys/syslimits.h], [], [], [#if HAVE_SYS_CDEFS_H #include #endif #include ]) AC_CHECK_HEADERS([sys/param.h], [], [], [#if HAVE_SYS_CDEFS_H #include #endif #if HAVE_SYS_SYSLIMITS_H #include #endif ]) AC_CHECK_HEADERS([sys/mount.h], [], [], [#if HAVE_SYS_CDEFS_H #include #endif #if HAVE_SYS_SYSLIMITS_H #include #endif #if HAVE_SYS_PARAM_H #include #endif ]) AC_CHECK_HEADERS(sys/types.h windows.h locale.h langinfo.h) saved_LIBS="$LIBS" AC_CHECK_LIB(m, main) AC_CHECK_FUNCS(statvfs link symlink readlink geteuid getlogin getpwnam getpwnam_r getpwuid getpwuid_r getgrgid getgrgid_r getgrnam getgrnam_r rint getopt) LIBS="$saved_LIBS" #-------------------------------------------------------------------- # These two headers (functions) needed by Time.m #-------------------------------------------------------------------- dnl AC_REPLACE_FUNCS(getrusage gettimeofday) AC_CHECK_HEADERS(time.h sys/time.h tzfile.h sys/rusage.h ucbinclude/sys/resource.h) AC_CHECK_FUNCS(time ctime tzset) # Check if tzfile contains the proper definitions if test $ac_cv_header_tzfile_h = yes; then AC_EGREP_HEADER(tzhead, tzfile.h, AC_DEFINE(HAVE_TZHEAD,1, [ Define if tzfile.h includes the proper definitions]),) fi #-------------------------------------------------------------------- # These headers/functions needed by GSTcpPort.m #-------------------------------------------------------------------- AC_CHECK_HEADERS(sys/socket.h netinet/in.h) dnl AC_REPLACE_FUNCS(recvfrom) #-------------------------------------------------------------------- # These headers/functions needed for stacktrace in NSException.m #-------------------------------------------------------------------- PASS_ARG=no AC_ARG_ENABLE(bfd, [ --enable-bfd Enables the use of libbfd to provide symbolic stack traces. Enabling this option provides support for symbolic stack traces on platforms where the backtrace_symbols() function is not available or does not work properly. Enabling this option also has the effect of changing the license of gnustep-base from LGPL to GPL since libbfd uses the GPL license],, enable_bfd=$PASS_ARG) if test $enable_bfd = yes; then AC_CHECK_HEADERS(bfd.h) AC_CHECK_LIB(iberty, dyn_string_append) AC_CHECK_LIB(bfd, bfd_openr) else AC_CHECK_HEADERS(execinfo.h) AC_CHECK_FUNCS(backtrace) fi #-------------------------------------------------------------------- # These headers/functions needed by NSLog.m #-------------------------------------------------------------------- AC_CHECK_HEADERS(syslog.h) AC_CHECK_FUNCS(syslog) #-------------------------------------------------------------------- # These headers/functions needed by NSRunLoop.m #-------------------------------------------------------------------- AC_CHECK_HEADERS(poll.h) AC_CHECK_FUNCS(poll) have_poll=no if test $ac_cv_header_poll_h = yes; then have_poll=yes AC_MSG_CHECKING(for poll emulation) AC_EGREP_CPP(emulating_poll, [#include "config/config.poll.c"], have_poll=no,) if test $have_poll = yes; then AC_MSG_RESULT(no) AC_MSG_CHECKING([if poll supports devices]) AC_TRY_RUN([#include "$srcdir/config/config.poll-dev.c"], ,have_poll=no, ) if test $have_poll = yes; then AC_MSG_RESULT(yes) AC_DEFINE(HAVE_POLL_F,1, [ Define if poll is NOT emulated via select]) else AC_MSG_RESULT(no) fi else AC_MSG_RESULT(yes) fi fi #-------------------------------------------------------------------- # Check for pthread.h #-------------------------------------------------------------------- AC_CHECK_HEADERS(pthread.h) if test $ac_cv_header_pthread_h = yes ; then AC_CHECK_SIZEOF(pthread_mutex_t,,[AC_INCLUDES_DEFAULT #include ]) GS_SIZEOF_MUTEX_T=$ac_cv_sizeof_pthread_mutex_t if test $ac_cv_sizeof_pthread_mutex_t = 0 ; then AC_MSG_ERROR([Unable to find size of pthread_mutex_t (required).]) fi AC_SUBST(GS_SIZEOF_MUTEX_T) AC_CHECK_SIZEOF(pthread_cond_t,,[AC_INCLUDES_DEFAULT #include ]) if test $ac_cv_sizeof_pthread_cond_t = 0 ; then AC_MSG_ERROR([Unable to find size of pthread_cond_t (required).]) fi GS_SIZEOF_COND_T=$ac_cv_sizeof_pthread_cond_t AC_SUBST(GS_SIZEOF_COND_T) else AC_MSG_ERROR([Unable to find pthread.h (needed for thread support).]) fi AC_CHECK_LIB(pthread, pthread_join, pthread_ok=yes, pthread_ok=no) ismingw=no case "$target_os" in mingw*) ismingw=yes;; esac if test $pthread_ok = yes ; then LIBS="$LIBS -lpthread" else if test $ismingw = yes ; then AC_CHECK_LIB(pthreadGC2, pthread_join, pthread_ok=yes, pthread_ok=no) if test $pthread_ok = yes ; then LIBS="$LIBS -lpthreadGC2" fi fi fi if test $pthread_ok = no ; then AC_MSG_ERROR([Unable to find pthread library (needed for thread support).]) fi # Typically need librt on Solaris for sched_yield AC_CHECK_LIB(rt, sched_yield) #-------------------------------------------------------------------- # This function needed by StdioStream.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(vsprintf vasprintf) if test $ac_cv_func_vsprintf = yes ; then AC_TRY_RUN([#include "$srcdir/config/config.vsprintf.c"], VSPRINTF_RETURNS_LENGTH=1, VSPRINTF_RETURNS_LENGTH=0, VSPRINTF_RETURNS_LENGTH=1) AC_DEFINE_UNQUOTED(VSPRINTF_RETURNS_LENGTH, $VSPRINTF_RETURNS_LENGTH, [Define if vsprintf returns the length printed]) fi if test $ac_cv_func_vasprintf = yes ; then AC_TRY_RUN([#include "$srcdir/config/config.vasprintf.c"], VASPRINTF_RETURNS_LENGTH=1, VASPRINTF_RETURNS_LENGTH=0, VASPRINTF_RETURNS_LENGTH=1) AC_DEFINE_UNQUOTED(VASPRINTF_RETURNS_LENGTH, $VASPRINTF_RETURNS_LENGTH, [Define if vasprintf returns the length printed]) fi #-------------------------------------------------------------------- # This function needed by NSFileManager.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(getcwd) AC_HEADER_DIRENT #-------------------------------------------------------------------- # This function needed by gdomap.c #-------------------------------------------------------------------- AC_CHECK_HEADERS(getopt.h) #-------------------------------------------------------------------- # This function needed by NSPage.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(valloc) #-------------------------------------------------------------------- # This function needed by Time.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(times) #-------------------------------------------------------------------- # These functions needed by NSData.m and GSFFIInvocation.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(mkstemp) AC_CHECK_FUNCS(shmctl) AC_CHECK_FUNCS(mmap) AC_CHECK_FUNCS(mprotect) AC_CHECK_HEADERS(sys/mman.h) #-------------------------------------------------------------------- # These functions needed by NSTask.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(killpg setpgrp setpgid setsid) if test "x$ac_cv_func_setpgrp" = xyes; then AC_FUNC_SETPGRP fi HAVE_PTS_STREAM_MODULES=0 case "${target}" in *-sysv-*) HAVE_PTS_STREAM_MODULES=1 ;; esac AC_DEFINE_UNQUOTED(HAVE_PTS_STREAM_MODULES, $HAVE_PTS_STREAM_MODULES, [Define this if you work on sysv]) AC_SUBST(HAVE_PTS_STREAM_MODULES) AC_CHECK_HEADERS(libc.h limits.h malloc.h memory.h string.h signal.h dnl stdlib.h dnl sys/signal.h sys/wait.h sys/file.h sys/fcntl.h sys/ioctl.h dnl sys/stropts.h unistd.h utime.h stdint.h inttypes.h sys/inttypes.h) if test $ac_cv_header_stdint_h = yes; then INCLUDE_STDINT="#include " elif test $ac_cv_header_inttypes_h = yes; then INCLUDE_STDINT="#include " elif test $ac_cv_header_sys_inttypes_h = yes; then INCLUDE_STDINT="#include " else INCLUDE_STDINT="no" fi if test "$INCLUDE_STDINT" = "no"; then INCLUDE_STDINT="" DEFINE_INT8_T="#define int8_t gss8" DEFINE_UINT8_T="#define uint8_t gsu8" DEFINE_INT16_T="#define int16_t gss16" DEFINE_UINT16_T="#define uint16_t gsu16" DEFINE_INT32_T="#define int32_t gss32" DEFINE_UINT32_T="#define uint32_t gsu32" DEFINE_INT64_T="#define int64_t gss64" DEFINE_UINT64_T="#define uint64_t gsu64" DEFINE_INTPTR_T="#define intptr_t gssaddr" DEFINE_UINTPTR_T="#define uintptr_t gsuaddr" else DEFINE_INT8_T="" DEFINE_UINT8_T="" DEFINE_INT16_T="" DEFINE_UINT16_T="" DEFINE_INT32_T="" DEFINE_UINT32_T="" DEFINE_INT64_T="" DEFINE_UINT64_T="" DEFINE_INTPTR_T="" DEFINE_UINTPTR_T="" fi AC_SUBST(INCLUDE_STDINT) AC_SUBST(DEFINE_INT8_T) AC_SUBST(DEFINE_UINT8_T) AC_SUBST(DEFINE_INT16_T) AC_SUBST(DEFINE_UINT16_T) AC_SUBST(DEFINE_INT32_T) AC_SUBST(DEFINE_UINT32_T) AC_SUBST(DEFINE_INT64_T) AC_SUBST(DEFINE_UINT64_T) AC_SUBST(DEFINE_INTPTR_T) AC_SUBST(DEFINE_UINTPTR_T) #-------------------------------------------------------------------- # These used by GSFileHandle.m and distributed objects # On some systems we need -lnsl ... so check for that first. #-------------------------------------------------------------------- AC_CHECK_LIB(nsl, inet_ntop) AC_CHECK_FUNCS(gethostbyaddr_r inet_aton inet_pton inet_ntop sigaction) USE_ZLIB=0 AC_CHECK_HEADERS(zlib.h) if test $ac_cv_header_zlib_h = yes; then AC_CHECK_LIB(z, gzseek, zlib_ok=yes, zlib_ok=no) if test "$zlib_ok" = yes; then LIBS="$LIBS -lz" USE_ZLIB=1 fi fi AC_SUBST(USE_ZLIB) HAVE_INET_PTON=no if test $ac_cv_func_inet_pton = yes ; then HAVE_INET_PTON=yes fi AC_SUBST(HAVE_INET_PTON) HAVE_INET_NTOP=no if test $ac_cv_func_inet_ntop = yes ; then HAVE_INET_NTOP=yes fi AC_SUBST(HAVE_INET_NTOP) #-------------------------------------------------------------------- # One of these function needed by NSThread.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(nanosleep usleep) #-------------------------------------------------------------------- # For setting thread stack size #-------------------------------------------------------------------- AC_CHECK_HEADERS(sys/resource.h) AC_CHECK_FUNCS(setrlimit) #-------------------------------------------------------------------- # One of these functions needed by NSDebug.m and NSProcessInfo.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(strerror_r strerror) #-------------------------------------------------------------------- # Needed by NSDebug.m #-------------------------------------------------------------------- AC_CHECK_FUNCS(sigsetjmp) #-------------------------------------------------------------------- # This type needed by GSFormat #-------------------------------------------------------------------- AC_CHECK_TYPES([uintmax_t]) AC_CHECK_HEADERS(wchar.h) #-------------------------------------------------------------------- # Check if short and int values need to be word aligned #-------------------------------------------------------------------- AC_MSG_CHECKING(short/int needs to be word aligned) AC_TRY_RUN([#include "$srcdir/config/config.align.c"], NEED_WORD_ALIGNMENT=0, NEED_WORD_ALIGNMENT=1, NEED_WORD_ALIGNMENT=1) AC_DEFINE_UNQUOTED(NEED_WORD_ALIGNMENT, $NEED_WORD_ALIGNMENT, [Define if your system needs to have short/int word aligned]) if test $NEED_WORD_ALIGNMENT = 1; then AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi #-------------------------------------------------------------------- # This function needed by NSString for handling of %@ printf directive. #-------------------------------------------------------------------- AC_CHECK_FUNC(register_printf_function, register_printf=1, register_printf=0) if test $register_printf = 1; then AC_TRY_RUN([#include "$srcdir/config/config.printf.c"], working_register_printf=1, working_register_printf=0, working_register_printf=1) if test $working_register_printf = 1; then AC_DEFINE(HAVE_REGISTER_PRINTF_FUNCTION,1, [Define if you have the register_printf_function function]) AC_TRY_RUN([#include "$srcdir/config/config.wprintf.c"], wide_register_printf=1, wide_register_printf=0, wide_register_printf=1) if test $wide_register_printf = 1; then AC_DEFINE(HAVE_WIDE_PRINTF_FUNCTION,1, [Define if register_printf_function supports wide characters]) fi fi fi #-------------------------------------------------------------------- # This function needed by NSString. #-------------------------------------------------------------------- AC_CHECK_FUNCS(realpath) #-------------------------------------------------------------------- # Check if the C Library defines extern char *program_invocation_name # Used in critical cases by NSProcessInfo.m #-------------------------------------------------------------------- AC_MSG_CHECKING(program_invocation_name in C Library) AC_CACHE_VAL(program_invocation_name_worked, [AC_TRY_RUN([ #include int main (int argc, char *argv[]) { extern char *program_invocation_name; return (strcmp (program_invocation_name, argv[0])); } ], program_invocation_name_worked=yes, program_invocation_name_worked=no, program_invocation_name_worked=no)]) if test $program_invocation_name_worked = yes; then AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME,1, [Define if your Lib C defines program_invocation_name]) AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi #-------------------------------------------------------------------- # Check for uname header used by NSProcessInfo.m #-------------------------------------------------------------------- AC_CHECK_HEADERS(sys/utsname.h) #-------------------------------------------------------------------- # Check for sysctlbyname used by NSProcessInfo.m #-------------------------------------------------------------------- AC_CHECK_HEADERS(sys/sysctl.h) AC_CHECK_FUNCS(sysctlbyname) #-------------------------------------------------------------------- # Defines HAVE_PROCFS if the kernel supports the /proc filesystem. # Needed by NSProcessInfo.m #-------------------------------------------------------------------- AC_CHECK_HEADERS(procfs.h) AC_SYS_PROCFS AC_SYS_PROCFS_PSINFO AC_SYS_PROCFS_EXE_LINK #-------------------------------------------------------------------- # Check if /proc/$$/cmdline terminates the last argument with a nul #-------------------------------------------------------------------- AC_MSG_CHECKING(/proc/$$/cmdline terminated by nul) AC_TRY_RUN([#include "$srcdir/config/config.proccmd.c"], CMDLINE_TERMINATED=1, CMDLINE_TERMINATED=0, CMDLINE_TERMINATED=0) AC_DEFINE_UNQUOTED(CMDLINE_TERMINATED, $CMDLINE_TERMINATED, [Define if your system terminates the final argument in /proc/$$/cmdline]) if test $CMDLINE_TERMINATED = 1; then AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) fi #-------------------------------------------------------------------- # If /proc doesn't work, try kvm (on FreeBSD, for instance) #-------------------------------------------------------------------- have_kvm_env=0 save_LIBS="$LIBS" AC_CHECK_LIB(kvm, kvm_getenvv) if test "$ac_cv_lib_kvm_kvm_getenvv" = yes; then AC_MSG_CHECKING(if we can access kernel memory) AC_TRY_RUN([#include "$srcdir/config/config.kvmopen.c"], have_kvm_env=1, have_kvm_env=0, have_kvm_env=0) if test $have_kvm_env = 1; then AC_MSG_RESULT(yes) AC_DEFINE(HAVE_KVM_ENV, 1, [Define if you can access the kernel via kvm_open]) else AC_MSG_RESULT(no) # Reset LIBS since we don't need kvm LIBS="$save_LIBS" fi fi #-------------------------------------------------------------------- # Include redefinition of main () only if needed. # On some systems - force redefinition to be used as the /proc stuff # doesn't work. Allow NSProcessInfo initialization method also. #-------------------------------------------------------------------- PASS_ARG=no case "$target_os" in cygwin*) PASS_ARG=yes;; esac AC_MSG_CHECKING(use of pass-through arguments) AC_ARG_ENABLE(pass-arguments, [ --enable-pass-arguments Force user main call to NSProcessInfo initialize],, enable_pass_arguments=$PASS_ARG) if test "$enable_pass_arguments" = "yes"; then GS_PASS_ARGUMENTS=1 else GS_PASS_ARGUMENTS=0 fi AC_SUBST(GS_PASS_ARGUMENTS) AC_MSG_RESULT($enable_pass_arguments) AC_MSG_CHECKING(use of fake-main definition) AC_ARG_ENABLE(fake-main, [ --enable-fake-main Force redefine of user main function],, enable_fake_main=no) if test "$enable_pass_arguments" = "no"; then case "$target_os" in freebsd2*) enable_fake_main=yes;; freebsd*) ;; netbsd*) enable_fake_main=yes;; openbsd*) enable_fake_main=yes;; *sysv*) enable_fake_main=yes;; esac fi GS_FAKE_MAIN=0 if test "$enable_fake_main" = "yes"; then GS_FAKE_MAIN=1 elif test "$enable_pass_arguments" = "no"; then if test "$objc_load_method_worked" = yes -a \( "$ac_cv_sys_procfs" = yes -o "$have_kvm_env" = 1 -o "$ac_cv_sys_procfs_psinfo" = yes \); then GS_FAKE_MAIN=0 if test "$have_kvm_env" = "1"; then echo "WARNING ... using libkvm which is known to be buggy on some systems" echo "consider configuring with --enable-fake-main instead." fi else GS_FAKE_MAIN=1 enable_fake_main=yes fi fi case "$target_os" in mingw*) enable_fake_main=no; GS_FAKE_MAIN=0;; esac AC_SUBST(GS_FAKE_MAIN) AC_MSG_RESULT($enable_fake_main) #-------------------------------------------------------------------- # Simple way to add a bunch of paths to the flags #-------------------------------------------------------------------- AC_ARG_WITH(include-flags, [ --with-include-flags=FLAGS Specify all include flags at once], include_flags="$withval", include_flags="no") if test ${include_flags} != "no"; then CPPFLAGS="$CPPFLAGS ${include_flags}" INCLUDE_FLAGS="$INCLUDE_FLAGS ${include_flags}" fi AC_ARG_WITH(library-flags, [ --with-library-flags=FLAGS Specify all library flags at once], library_flags="$withval", library_flags="no") if test ${library_flags} != "no"; then LDFLAGS="$LDFLAGS ${library_flags}" LDIR_FLAGS="$LDIR_FLAGS ${library_flags}" fi #-------------------------------------------------------------------- # Check for FFI interface libraries for invocations # We enable ffi by default now, as it's fixed for some previouly bad # platforms, and it has the advantage over ffcall that it does not # mess up the stack, so stacktraces and native exception handling # work better with it. #-------------------------------------------------------------------- do_broken_libffi=no do_broken_libffcall=no do_enable_libffi=yes do_enable_libffcall=no case "$target_cpu" in sparc64*) case "$target_os" in solaris*) do_broken_libffcall=yes; do_enable_libffi=yes; do_enable_libffcall=no;; *) ;; esac ;; *) ;; esac if test "$exceptions" = "yes"; then # ffcall will mess up native exceptions, so we must disable it. do_broken_libffcall=yes do_enable_libffcall=no if test "$have_unexpected" = "no"; then echo echo "Your gnustep-make is configured to use native objc exceptions, but" echo "the objc runtime does not appear to support setting an uncaught" echo "exception handler. This means that any uncaught exception will" echo "cause a program to abort immediately." echo "Consider reconfiguring gnustep-make or updating libobjc to fix this." fi fi AC_ARG_ENABLE(libffi, [ --enable-libffi Enable use of libffi library],, enable_libffi=$do_enable_libffi) if test $enable_libffi = no; then do_enable_libffcall=yes fi AC_ARG_ENABLE(ffcall, [ --enable-ffcall Enable use of ffcall library],, enable_ffcall=$do_enable_libffcall) AC_ARG_ENABLE(invocations, [ --disable-invocations Compile even if invocation-dependencies are not met],, enable_invocations=yes) # DO isn't used on apple-apple-apple if test $LIBRARY_COMBO = apple-apple-apple; then enable_invocations=no fi AC_ARG_WITH(ffi-include, [ --with-ffi-include=PATH Include path for ffi (ffcall/libffi) headers], ffi_incdir="$withval", ffi_incdir="no") if test ${ffi_incdir} != "no"; then CPPFLAGS="$CPPFLAGS -I${ffi_incdir}" INCLUDE_FLAGS="$INCLUDE_FLAGS -I${ffi_incdir}" fi AC_ARG_WITH(ffi-library, [ --with-ffi-library=PATH Library path for ffi (ffcall/libffi) libs], ffi_libdir="$withval", ffi_libdir="no") if test ${ffi_libdir} != "no"; then GS_ADD_LIBRARY_PATH([${ffi_libdir}]) fi if test "$do_broken_libffi" = "no"; then AC_CHECK_HEADER(ffi.h, have_libffi=yes, have_libffi=no) else have_libffi=no fi if test "$do_broken_libffcall" = "no"; then AC_CHECK_HEADERS(callback.h, have_ffcall=yes, have_ffcall=no) else have_ffcall=no fi if test $have_ffcall = no; then enable_ffcall=no # If we don't have ffcall but do have libffi, use libffi if test $have_libffi = yes; then enable_libffi=yes fi fi if test $have_libffi = no; then enable_libffi=no # If we don't have libffi but do have ffcall, use ffcall if test $have_ffcall = yes; then enable_ffcall=yes fi fi have_forward_hook=yes saved_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS $OBJCFLAGS -x objective-c" AC_MSG_CHECKING(for forwarding callback in runtime) AC_COMPILE_IFELSE([#include "$srcdir/config/config.forward2.m"], have_forward_hook=yes, have_forward_hook=no) if test $have_forward_hook = yes; then AC_DEFINE(HAVE_FORWARD2,1, [Define if libobjc has the __objc_msg_forward2 function]) else AC_COMPILE_IFELSE([#include "$srcdir/config/config.forward.m"], have_forward_hook=yes, have_forward_hook=no) fi AC_MSG_RESULT($have_forward_hook) if test $have_forward_hook = no; then enable_libffi=no enable_ffcall=no fi CPPFLAGS="$saved_CPPFLAGS" saved_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS $OBJCFLAGS -fobjc-nonfragile-abi -x objective-c" AC_MSG_CHECKING(for non-fragile-abi support) AC_RUN_IFELSE([#include "$srcdir/config/config.non-fragile-ivars.m"], non_fragile=yes, non_fragile=no) CPPFLAGS="$saved_CPPFLAGS" if test $non_fragile = yes; then OBJCFLAGS="$OBJCFLAGS -fobjc-nonfragile-abi" AC_SUBST(OBJCFLAGS) fi AC_MSG_RESULT($non_fragile) AC_MSG_CHECKING(FFI library usage) WITH_FFI=none if test $enable_libffi = yes; then AC_DEFINE(USE_LIBFFI,1, [Define if using the libffi library for invocations]) WITH_FFI=libffi LIBS="-lffi $LIBS" AC_TRY_LINK([#include ], ,ffi_ok="yes", ffi_ok="no") if test $ffi_ok = yes; then AC_MSG_RESULT(libffi) fi if test $do_broken_libffi = yes; then AC_MSG_WARN([ffi may be broken on this system ... try enabling ffcall]) fi elif test $enable_ffcall = yes; then AC_DEFINE(USE_FFCALL,1, [Define if using the ffcall library for invocations]) WITH_FFI=ffcall LIBS="-lcallback -lavcall $LIBS" AC_TRY_LINK([#include ], , ffi_ok="yes", ffi_ok="no") if test $ffi_ok = yes; then AC_MSG_RESULT(ffcall) fi if test $do_broken_libffcall = yes; then AC_MSG_WARN([ffcall may be broken on this system ... try enabling ffi]) fi else ffi_ok=no fi if test $enable_ffcall = yes -a $ffi_ok = yes; then AC_MSG_CHECKING(if ffcall trampolines work) AC_RUN_IFELSE([#include "$srcdir/config/config.trampoline.c"], have_working_trampoline=yes, have_working_trampoline=no, have_working_trampoline=yes) AC_MSG_RESULT($have_working_trampoline) # Don't enforce this. Sometimes things work fine anyway... #if test $have_working_trampoline = no; then # ffi_ok=no #fi fi if test $ffi_ok = no; then AC_MSG_RESULT(none) echo if test $have_forward_hook = no; then echo "You do not have an up-to-date libobjc library installed" elif test "$have_working_trampoline" = no; then echo "You have ffcall, but it does not work properly. Most likely because" echo "your system's security policy is blocking some parts of ffcall" echo "we recommend installing libffi instead." else echo "You do not have either ffcall or libffi installed, or configure needs" echo "--with-ffi-include and/or --with-ffi-library flags so GNUstep can find them," echo "or you have ffcall but gnustep-make is configured to use native exceptions" echo "(native exceptions are not compatible with ffcall)." fi echo "GNUstep requires ffcall or libffi and proper libobjc hooks to do" echo "invocations and DO." echo "(This does not apply on apple-apple-apple systems where DO is" echo "not compatible with other GNUstep systems.)" if test $enable_invocations = yes; then echo echo "You most likely do not want to build base without invocation support." echo "Many things (including Distributed Objects and undo/redo), won't work" echo "at all without invocations." echo "If you really want to build -base without invocation support," echo "add --disable-invocations to the configure arguments." echo "For more information, read the GNUstep build guide, ffcall section:" echo "http://gnustep.made-it.com/BuildGuide/index.html" AC_MSG_ERROR([Incomplete support for ffi functionality.]) fi AC_MSG_WARN([Incomplete support for ffi funtionality.]) fi AC_SUBST(WITH_FFI) #-------------------------------------------------------------------- # Check for iconv support (for Unicode conversion). #-------------------------------------------------------------------- # Do this before checking for xml2, as xml2 may require iconv. # # We need to find an iconv library that matches the installed iconv.h header # (if any). It is important to check header/library compatibility. It's # fairly common to have iconv support both in libc and from libiconv. In that # case, a naive check that iconv() is in libc will succeed, but if we use # libiconv's iconv.h, it will redefine iconv() to functions that exist # only in libiconv, and we'll get link errors. # # First, check if there's a working iconv in libc (ie. if the test program # compiles and links without any extra flags). AC_MSG_CHECKING(iconv support) AC_LINK_IFELSE([[#include int main(int argc,char **argv) { iconv_open("foo","bar"); }]] , # libc has a working iconv. AC_DEFINE(HAVE_ICONV,1, [Define if you have this function]) AC_MSG_RESULT([[yes, in libc]]) found_iconv=yes , found_iconv=no ) if test $found_iconv = no ; then # libc doesn't have a working iconv. Try adding -liconv and any user # supplied directory. AC_ARG_WITH(libiconv-library, [ --with-libiconv-library=PATH Library path for libiconv libraries], libiconv_libdir="$withval", libiconv_libdir="no") if test "$libiconv_libdir" != "no"; then GS_ADD_LIBRARY_PATH([${libiconv_libdir}]) fi old_LIBS="$LIBS" LIBS="-liconv $LIBS" AC_LINK_IFELSE([[#include int main(int argc,char **argv) { iconv_open("foo","bar"); }]] , # -liconv works. AC_DEFINE(HAVE_ICONV,1, [Define if you have this function]) AC_MSG_RESULT([[yes, -liconv]]) found_iconv=yes , found_iconv=no LIBS="$old_LIBS" ) fi if test $found_iconv = no ; then # -liconv didn't work. Try giconv.h and -lgiconv. # BSDs install this lib as libgiconv. old_LIBS="$LIBS" LIBS="-lgiconv $LIBS" AC_LINK_IFELSE([[#include int main(int argc,char **argv) { iconv_open("foo","bar"); }]] , AC_DEFINE(HAVE_ICONV,1, [Define if you have this function]) AC_DEFINE(HAVE_GICONV,1, [Define if you have this function]) AC_MSG_RESULT([[yes, -lgiconv]]) , AC_MSG_RESULT([[no]]) LIBS="$old_LIBS" ) fi #-------------------------------------------------------------------- # Check recent libxml for Properytlists, GSXML, GSDoc etc. #-------------------------------------------------------------------- AC_ARG_ENABLE(xml, [ --disable-xml Compile even if XML-dependencies are not met],, enable_xml=yes) if test $enable_xml = yes; then # Save CFLAGS and LIBS as AM_PATH_XML clobbers these variables regardless # of the success of the macro. saved_LIBS="$LIBS" saved_CFLAGS="$CFLAGS" AM_PATH_XML(2.3.0, enable_libxml=yes, enable_libxml=no) if test $enable_libxml = yes; then CPPFLAGS="$CPPFLAGS $XML_CFLAGS" INCLUDE_FLAGS="$INCLUDE_FLAGS $XML_CFLAGS" LIBS="$XML_LIBS $LIBS" HAVE_LIBXML=1 AC_DEFINE(HAVE_LIBXML,1,[Define if libxml available]) AC_CHECK_HEADERS(libxml/SAX2.h) #-------------------------------------------------------------------- # Check for (optional) libxslt #-------------------------------------------------------------------- AC_ARG_ENABLE(xslt, [ --disable-xslt Compile even if XSLT-dependency is not met],, enable_xslt=yes) if test $enable_xslt = yes; then AC_CHECK_LIB(xslt, xsltApplyStylesheet, xslt_ok=yes, xslt_ok=no) if test "$xslt_ok" = "yes"; then AC_CHECK_HEADER(libxslt/xslt.h, xslthdr_ok=yes, xslthdr_ok=no) if test "$xslthdr_ok" = "no"; then xslt_ok=no fi fi if test "$xslt_ok" = "yes"; then HAVE_LIBXSLT=1 AC_DEFINE(HAVE_LIBXSLT,1,[Define if libxslt available]) LIBS="-lxslt $LIBS" else echo echo "You may not want to build base without XSLT support." echo "Doing so will disable the XSLT extensions." echo "If you really want to build -base without XSLT support," echo "add --disable-xslt to the configure arguments." AC_MSG_WARN([Missing support for XSLT functionality.]) fi else HAVE_LIBXSLT=0 AC_MSG_WARN([Disabled support for XSLT funtionality.]) fi AC_SUBST(HAVE_LIBXSLT) else HAVE_LIBXML=0 # Restore the CFLAGS and LIBS because AM_PATH_XML messes them LIBS="$saved_LIBS" CFLAGS="$saved_CFLAGS" echo echo "You may not want to build base without libxml2." echo "Doing so will disable the XML, XPATH, and XMLRPC extensions." echo "If you really want to build -base without XML support," echo "add --disable-xml to the configure arguments." AC_MSG_ERROR([Missing support for XML functionality.]) fi else AC_MSG_WARN([Disabled support for XML funtionality.]) HAVE_LIBXML=0 fi AC_SUBST(HAVE_LIBXML) #-------------------------------------------------------------------- # Check recent libgnutls for SSL streams. #-------------------------------------------------------------------- AC_ARG_ENABLE(tls, [ --disable-tls Disable use of GNUTLS],, enable_tls=yes) if test $enable_tls = yes; then # Save CFLAGS and LIBS as AM_PATH_TLS clobbers these variables regardless # of the success of the macro. saved_LIBS="$LIBS" saved_CFLAGS="$CFLAGS" # AM_PATH_TLS(2.0.1, enable_libgnutls=yes, enable_libgnutls=no) AM_PATH_TLS(1.4.0, enable_libgnutls=yes, enable_libgnutls=no) if test $enable_libgnutls = yes; then CPPFLAGS="$CPPFLAGS $TLS_CFLAGS" INCLUDE_FLAGS="$INCLUDE_FLAGS $TLS_CFLAGS" LIBS="$TLS_LIBS $LIBS" HAVE_GNUTLS=1 AC_DEFINE(HAVE_GNUTLS,1,[Define if libgnutls available]) AC_CHECK_FUNCS(gnutls_transport_set_errno) if test "$ac_cv_func_gnutls_transport_set_errno" = "no"; then AC_MSG_WARN([Missing support for thread-safe error handling in GNUTLS. Please check that you have the most recent version installed (2.0 or later chould be fine).]) fi else HAVE_GNUTLS=0 # Restore the CFLAGS and LIBS because AM_PATH_TLS messes them LIBS="$saved_LIBS" CFLAGS="$saved_CFLAGS" echo echo "You may not want to build base without libgnutls." echo "Doing so will disable SSL support in the NSStream class." echo "If you really want to build -base without TLS support," echo "add --disable-tls to the configure arguments." AC_MSG_WARN([Missing support for TLS functionality.]) fi else AC_MSG_WARN([Disabled support for TLS funtionality.]) HAVE_GNUTLS=0 fi AC_SUBST(HAVE_GNUTLS) #-------------------------------------------------------------------- # Check for NSNetServices #-------------------------------------------------------------------- HAVE_MDNS=0 AC_ARG_ENABLE(zeroconf, [ --disable-zeroconf Disable NSNetServices support],, enable_zeroconf=yes) if test $enable_zeroconf = yes; then AC_CHECK_HEADERS(dns_sd.h, have_mdns=yes, have_mdns=no) if test "$have_mdns" = "yes"; then AC_CHECK_LIB(dns_sd, DNSServiceBrowse, have_mdns=yes, have_mdns=no) if test "$have_mdns" = "yes"; then LIBS="-ldns_sd $LIBS" HAVE_MDNS=1 fi fi fi AC_SUBST(HAVE_MDNS) #-------------------------------------------------------------------- # Check GMP for NSDecimal #-------------------------------------------------------------------- AC_ARG_WITH(gmp-include, [ --with-gmp-include=PATH include path for gmp headers], gmp_incdir="$withval", gmp_incdir="no") AC_ARG_WITH(gmp-library, [ --with-gmp-library=PATH library path for gmp libraries], gmp_libdir="$withval", gmp_libdir="no") libs_temp=$LIBS if test "$gmp_incdir" != "no"; then CPPFLAGS="$CPPFLAGS -I$gmp_incdir" INCLUDE_FLAGS="$INCLUDE_FLAGS -I$gmp_incdir" fi if test "$gmp_libdir" != "no"; then GS_ADD_LIBRARY_PATH([${gmp_libdir}]) fi USE_GMP=0 AC_CHECK_HEADERS(gmp.h) if test $ac_cv_header_gmp_h = yes; then AC_CHECK_LIB(gmp, mpf_abs, gmp_ok=yes, gmp_ok=no) if test "$gmp_ok" = no; then AC_CHECK_LIB(gmp, __gmpf_abs, gmp_ok=yes, gmp_ok=no) fi if test "$gmp_ok" = yes; then LIBS="-lgmp $LIBS" USE_GMP=1 fi fi AC_SUBST(USE_GMP) #-------------------------------------------------------------------- # Check whether nl_langinfo(CODESET) is supported, needed by Unicode.m. #-------------------------------------------------------------------- AM_LANGINFO_CODESET AC_SUBST(INCLUDE_FLAGS) AC_SUBST(LDIR_FLAGS) #-------------------------------------------------------------------- # Configure flags from sub-configure runs, so they show up in our # help file. #-------------------------------------------------------------------- AC_ARG_ENABLE(openssl, [ --disable-openssl Disable support for openssl in URL classes],, enable_openssl=yes) AC_ARG_WITH(openssl-include, [ --with-openssl-include=PATH include path for openssl headers], openssl_incdir="$withval", openssl_incdir="no") AC_ARG_WITH(openssl-library, [ --with-openssl-library=PATH library path for openssl libraries], openssl_libdir="$withval", openssl_libdir="no") AC_ARG_WITH(installation-domain, [ --with-installation-domain=DOMAIN Specify the domain (SYSTEM, LOCAL, NETWORK or USER) into which gnustep-base will be installed. Whenever relative paths are hardcoded into gnustep-base (at the moment, this happens only on MinGW) this option must be used and must match the domain where you will be installing gnustep-base. If this is not specified, the output of gnustep-config --installation-domain-for=gnustep-base (which should normally be LOCAL) is used.], result="$withval", result="no" ) AC_ARG_WITH(config-file, [ --with-config-file=PATH Specify path to the GNUstep config file. This is the location to be used by the base library to locate path information at application or tool runtime. This file might not even exist now; it is not read at configure time. The base library will only read it at runtime. If unspecified, this uses the same value as the GNUstep make package on unix-like systems, but uses ./GNUstep.conf on mingw so that it is relative to the location of the base library DLL. If a leading './' is specified, the path is taken to be relative to the base library linked runtime, not all operating systems can support this, so on some platforms you may need to specify the location of the config file using the GNUSTEP_CONFIG_FILE environment variable at runtime. If a trailing '/' is specified, the path is used for locating domains but no GNUstep config file is read at runtime.], result="$withval", result="no" ) AC_ARG_ENABLE(environment-config-file, [ --disable-environment-config-file Disables the use of the GNUSTEP_CONFIG_FILE environment variable to specify/override the location of the GNUstep config file at runtime. This option is occasionally useful to disable the environment variable for sites which wish to 'lock down' users to always work with a specific system-wide configuration. On unix-like systems the default is for this option to be enabled. It is disabled by default on windows systems so that the base library will not use a config file intended for the gnustep-make system (and containing unix-style paths which cannot be used by widnows apps). Normally this should be left at its default setting.], ac_cv_environment_config_file=$enableval, ac_cv_environment_config_file=$enable_env_config) AC_ARG_ENABLE(importing-config-file, [ --disable-importing-config-file Disable importing of an existing GNUstep config file and use inbuilt defaults instead.], ac_cv_importing_config_file=$enableval, ac_cv_importing_config_file="yes") AC_ARG_WITH(default-config, [ --with-default-config=PATH Specify path to a GNUstep config file to be imported at configure time (now) and used to provide default values for the base library to use at runtime if no GNUstep config file is found at runtime. If this is not specified then the path from --with-config-file or from the gnustep-make package is used.], result="$withval", result="no" ) AC_CONFIG_SUBDIRS(Source/pathconfig Source/mframe SSL) #-------------------------------------------------------------------- # Record the version #-------------------------------------------------------------------- AC_MSG_CHECKING(for the version of gnustep-base we are compiling) if test -f "Version"; then . ./Version fi AC_MSG_RESULT($VERSION) AC_SUBST(VERSION) AC_SUBST(MAJOR_VERSION) AC_SUBST(MINOR_VERSION) AC_SUBST(SUBMINOR_VERSION) AC_SUBST(GCC_VERSION) #-------------------------------------------------------------------- # Write the Makefiles #-------------------------------------------------------------------- AC_CONFIG_FILES([config.mak base.make Headers/Additions/GNUstepBase/GSConfig.h Headers/Additions/GNUstepBase/preface.h]) AC_OUTPUT