2001-03-21 23:11:49 +00:00
|
|
|
AC_DEFUN(OBJC_SYS_DYNAMIC_LINKER,
|
|
|
|
|
[dnl
|
|
|
|
|
AC_REQUIRE([OBJC_CON_AUTOLOAD])dnl
|
|
|
|
|
#--------------------------------------------------------------------
|
|
|
|
|
# Guess the type of dynamic linker for the system
|
|
|
|
|
#
|
|
|
|
|
# Makes the following substitutions:
|
|
|
|
|
# DYNAMIC_LINKER - cooresponds to the interface that is included
|
|
|
|
|
# in objc-load.c (i.e. #include "${DYNAMIC_LINKER}-load.h")
|
|
|
|
|
#--------------------------------------------------------------------
|
|
|
|
|
DYNAMIC_LINKER=null
|
|
|
|
|
AC_CHECK_HEADER(dlfcn.h, DYNAMIC_LINKER=simple)
|
|
|
|
|
if test $DYNAMIC_LINKER = null; then
|
|
|
|
|
AC_CHECK_HEADER(dl.h, DYNAMIC_LINKER=hpux)
|
|
|
|
|
fi
|
|
|
|
|
if test $DYNAMIC_LINKER = null; then
|
|
|
|
|
AC_CHECK_HEADER(windows.h, DYNAMIC_LINKER=win32)
|
|
|
|
|
fi
|
|
|
|
|
if test $DYNAMIC_LINKER = null; then
|
|
|
|
|
AC_CHECK_HEADER(dld/defs.h, DYNAMIC_LINKER=dld)
|
|
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
if test $DYNAMIC_LINKER = simple; then
|
|
|
|
|
AC_TRY_LINK([#include <dlfcn.h>], dladdr(0,0);,
|
2002-05-07 22:16:08 +00:00
|
|
|
AC_DEFINE(HAVE_DLADDR,1, [Define if you have dladdr]))
|
2001-03-21 23:11:49 +00:00
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
AC_SUBST(DYNAMIC_LINKER)dnl
|
|
|
|
|
])
|
|
|
|
|
AC_DEFUN(OBJC_SYS_DYNAMIC_FLAGS,
|
|
|
|
|
[dnl
|
|
|
|
|
AC_REQUIRE([OBJC_CON_AUTOLOAD])dnl
|
|
|
|
|
AC_REQUIRE([OBJC_SYS_DYNAMIC_LINKER])dnl
|
|
|
|
|
#--------------------------------------------------------------------
|
|
|
|
|
# Set the flags for compiling dynamically loadable objects
|
|
|
|
|
#
|
|
|
|
|
# Makes the following substitutions:
|
|
|
|
|
# DYNAMIC_BUNDLER_LINKER - The command to link the object files into
|
|
|
|
|
# a dynamically loadable module.
|
|
|
|
|
# DYNAMIC_LDFLAGS - Flags required when compiling the main program
|
|
|
|
|
# that will do the dynamic linking
|
|
|
|
|
# DYNAMIC_CFLAGS - Flags required when compiling the object files that
|
|
|
|
|
# will be included in the loaded module.
|
|
|
|
|
#--------------------------------------------------------------------
|
|
|
|
|
if test $DYNAMIC_LINKER = dld; then
|
|
|
|
|
DYNAMIC_BUNDLER_LINKER="ld -r"
|
|
|
|
|
DYNAMIC_LDFLAGS="-static"
|
|
|
|
|
DYNAMIC_CFLAGS=""
|
|
|
|
|
elif test $DYNAMIC_LINKER = simple; then
|
|
|
|
|
save_LDFLAGS=$LDFLAGS
|
|
|
|
|
LDFLAGS="-shared"
|
|
|
|
|
AC_TRY_LINK([extern void loadf();], loadf();,
|
|
|
|
|
objc_shared_linker=yes, objc_shared_linker=no)
|
|
|
|
|
LDFLAGS=$save_LDFLAGS
|
|
|
|
|
if test $objc_shared_linker = yes; then
|
|
|
|
|
DYNAMIC_BUNDLER_LINKER='$(CC) -shared'
|
|
|
|
|
elif test $objc_cv_con_autoload = yes; then
|
|
|
|
|
DYNAMIC_BUNDLER_LINKER='$(CC) -Xlinker -r'
|
|
|
|
|
else
|
|
|
|
|
DYNAMIC_BUNDLER_LINKER='$(CC) -nostdlib'
|
|
|
|
|
fi
|
|
|
|
|
save_LDFLAGS=$LDFLAGS
|
|
|
|
|
LDFLAGS="-rdynamic"
|
|
|
|
|
AC_TRY_RUN([], objc_dynamic_ldflag="-rdynamic", objc_dynamic_ldflag="",
|
|
|
|
|
objc_dynamic_ldflag="")
|
|
|
|
|
LDFLAGS=$save_LDFLAGS
|
|
|
|
|
DYNAMIC_LDFLAGS="$objc_dynamic_ldflag"
|
|
|
|
|
DYNAMIC_CFLAGS="-fPIC"
|
|
|
|
|
elif test $DYNAMIC_LINKER = hpux; then
|
|
|
|
|
DYNAMIC_BUNDLER_LINKER='$(CC) -nostdlib -Xlinker -b'
|
|
|
|
|
DYNAMIC_LDFLAGS="-Xlinker -E"
|
|
|
|
|
DYNAMIC_CFLAGS="-fPIC"
|
|
|
|
|
elif test $DYNAMIC_LINKER = null; then
|
|
|
|
|
DYNAMIC_BUNDLER_LINKER='$(CC) -nostdlib -Xlinker -r'
|
|
|
|
|
DYNAMIC_LDFLAGS=""
|
|
|
|
|
DYNAMIC_CFLAGS=""
|
|
|
|
|
else
|
|
|
|
|
DYNAMIC_BUNDLER_LINKER='$(CC) -nostdlib -Xlinker -r'
|
|
|
|
|
DYNAMIC_LDFLAGS=""
|
|
|
|
|
DYNAMIC_CFLAGS=""
|
|
|
|
|
fi
|
|
|
|
|
AC_SUBST(DYNAMIC_BUNDLER_LINKER)dnl
|
|
|
|
|
AC_SUBST(DYNAMIC_LDFLAGS)dnl
|
|
|
|
|
AC_SUBST(DYNAMIC_CFLAGS)dnl
|
|
|
|
|
])
|
