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Added sanity test that Objective-C really works before going on

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@10519 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Nicola Pero 2001-07-19 11:44:23 +00:00
parent 3e885eb184
commit 1e68bbaa64
1 changed files with 30 additions and 5 deletions
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35
configure.in
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@ -347,11 +347,10 @@ AC_SUBST(_GSC_S_LNG_LNG)
#--------------------------------------------------------------------
OBJC_SYS_DYNAMIC_LINKER()
#---------------------------------------------------------------------
# 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.
#---------------------------------------------------------------------
#--------------------------------------------------------------------
# Check whether Objective-C /really/ works
#--------------------------------------------------------------------
AC_MSG_CHECKING(whether objc really works)
saved_LIBS="$LIBS"
saved_CPPFLAGS="$CPPFLAGS"
LIBS="$LIBS $LIBOBJC"
@ -360,6 +359,32 @@ if test x"$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 $objc_works = yes; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
echo "I don't seem to be able to use your Objective-C compiler to produce"
echo "working binaries! Please check your Objective-C compiler installation."
echo "If you are using gcc-3.x make sure that your compiler's libgcc_s and libobjc"
echo "can be found by the dynamic linker - usually that requires you to play"
echo "with LD_LIBRARY_PATH or /etc/ld.so.conf."
echo "Please refer to your compiler installation instructions for more help."
AC_MSG_ERROR(The Objective-C compiler doesn't work or is not installed properly.)
fi
# Don't rever any Objective-C flags as they are used in the next test
#---------------------------------------------------------------------
# Guess if we are using a compiler which allows us to change the class
# to be used for constant strings by using the -fconstant-string-class
# option. If that is the case, we change it to NSConstantString.
#---------------------------------------------------------------------
CPPFLAGS="$CPPFLAGS -fconstant-string-class=NSConstantString"
AC_MSG_CHECKING(if the compiler supports -fconstant-string-class)
AC_CACHE_VAL(objc_compiler_supports_constant_string_class,