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54818427e8
object files from which classes have been loaded git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@14872 72102866-910b-0410-8b05-ffd578937521
44 lines
1.4 KiB
Text
44 lines
1.4 KiB
Text
AC_DEFUN(OBJC_SYS_DYNAMIC_LINKER,
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[dnl
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AC_REQUIRE([OBJC_CON_AUTOLOAD])dnl
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#--------------------------------------------------------------------
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# Guess the type of dynamic linker for the system
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#
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# Makes the following substitutions:
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# DYNAMIC_LINKER - cooresponds to the interface that is included
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# in objc-load.c (i.e. #include "${DYNAMIC_LINKER}-load.h")
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#--------------------------------------------------------------------
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DYNAMIC_LINKER=null
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AC_CHECK_HEADER(dlfcn.h, DYNAMIC_LINKER=simple)
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if test $DYNAMIC_LINKER = null; then
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AC_CHECK_HEADER(dl.h, DYNAMIC_LINKER=hpux)
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fi
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if test $DYNAMIC_LINKER = null; then
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AC_CHECK_HEADER(windows.h, DYNAMIC_LINKER=win32)
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fi
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if test $DYNAMIC_LINKER = null; then
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AC_CHECK_HEADER(dld/defs.h, DYNAMIC_LINKER=dld)
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fi
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# NB: This is used as follows: in Source/Makefile.postamble we copy
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# $(DYNAMIC_LINKER)-load.h into dynamic-load.h
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AC_MSG_CHECKING([for dynamic linker type])
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AC_MSG_RESULT([$DYNAMIC_LINKER])
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if test $DYNAMIC_LINKER = simple; then
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AC_MSG_CHECKING([checking if dladdr() is available])
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old_LDFLAGS="$LDFLAGS"
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case "$target_os" in
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linux-gnu*) LDFLAGS="$old_LDFLAGS -ldl";;
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solaris*) LDFLAGS="$old_LDFLAGS -ldl";;
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sysv4.2*) LDFLAGS="$old_LDFLAGS -ldl";;
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esac
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AC_TRY_LINK([#include <dlfcn.h>], dladdr(0,0);,
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AC_DEFINE(HAVE_DLADDR,1, [Define if you have dladdr])
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AC_MSG_RESULT([yes]),
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AC_MSG_RESULT([no]))
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LDFLAGS="$old_LDFLAGS"
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fi
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AC_SUBST(DYNAMIC_LINKER)dnl
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])
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