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Added test for -fconstant-string-class option in compiler

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@10086 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Nicola Pero 2001-06-06 15:29:57 +00:00
parent 24857a5f04
commit 191d0f8399
1 changed files with 36 additions and 11 deletions
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47
configure.in
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@ -348,11 +348,10 @@ AC_SUBST(_GSC_S_LNG_LNG)
OBJC_SYS_DYNAMIC_LINKER()
#---------------------------------------------------------------------
# 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
#--------------------------------------------------------------------
# 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.
#---------------------------------------------------------------------
saved_LIBS="$LIBS"
saved_CPPFLAGS="$CPPFLAGS"
LIBS="$LIBS $LIBOBJC"
@ -361,6 +360,38 @@ if test x"$objc_threaded" != x""; then
LIBS="$LIBS $objc_threaded"
fi
LIBS="$LIBS $extra_LIBS"
CPPFLAGS="$CPPFLAGS -fconstant-string-class=NSConstantString"
AC_MSG_CHECKING(if the compiler support -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 $objc_compiler_supports_constant_string_class = yes; then
NX_CONST_STRING_CPPFLAGS="-fconstant-string-class=NSConstantString"
NX_CONST_STRING_CLASS=NSConstantString
AC_MSG_RESULT(yes)
else
NX_CONST_STRING_CPPFLAGS=""
NX_CONST_STRING_CLASS=NXConstantString
AC_MSG_RESULT(no)
fi
AC_SUBST(NX_CONST_STRING_CPPFLAGS)
AC_SUBST(NX_CONST_STRING_CLASS)
CPPFLAGS="$saved_CPPFLAGS"
# Don't revert LIBS, need it for 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
#---------------------------------------------------------------------
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS -x objective-c"
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"],
@ -891,12 +922,6 @@ AC_SUBST(MINOR_VERSION)
AC_SUBST(SUBMINOR_VERSION)
AC_SUBST(GCC_VERSION)
#--------------------------------------------------------------------
# Set the constant string class support.
#--------------------------------------------------------------------
NXCONST=NXConstantString
AC_SUBST(NXCONST)
#--------------------------------------------------------------------
# Write the Makefiles
#--------------------------------------------------------------------