Add changes to build environment support to support MacOS X (darwin).

Changes will be overwritten upon next autoconf/libtool update.

build/config.guess

@@ -971,6 +971,9 @@ EOF
     Power*:Rhapsody:*:*)
 	echo powerpc-apple-rhapsody${UNAME_RELEASE}
 	exit 0 ;;
+    *:Darwin:*:* | *:"Mac OS":*:*)
+	echo `uname -p`-apple-darwin${UNAME_RELEASE}
+	exit 0 ;;
     *:Rhapsody:*:*)
 	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
 	exit 0 ;;

build/config.sub

@@ -918,7 +918,7 @@ case $os in
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
-	      | -interix* | -uwin* | -rhapsody* | -opened* | -openstep* | -oskit*)
+	      | -interix* | -uwin* | -rhapsody* | -opened* | -openstep* | -darwin* | -oskit*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \

build/ltconfig

@@ -1364,6 +1364,17 @@ else
     hardcode_shlibpath_var=no
     ;;
 
+  darwin* | rhapsody*)
+    allow_undefined_flag='-undefined warning'
+    archive_cmds='$CC $(if [ "$module" = "yes" ]; then echo -bundle; else echo -dynamiclib -undefined suppress; fi) -o $lib $libobjs $deplibs $linkopts'
+    archive_expsym_cmds="$archive_cmds"' && strip -s $export_symbols'
+    ## What we need is to hardcode the path to the library, not the search path
+    #hardcode_direct=yes
+    #hardcode_libdir_flag_spec='-install_name $libdir/$lib'
+    hardcode_shlibpath_var=no
+    whole_archive_flag_spec='-all_load'
+    ;;
+
   hpux9* | hpux10* | hpux11*)
     case "$host_os" in
     hpux9*) archive_cmds='$rm $objdir/$soname~$LD -b +b $install_libdir -o $objdir/$soname $libobjs $deplibs $linkopts~test $objdir/$soname = $lib || mv $objdir/$soname $lib' ;;
@@ -1903,6 +1914,18 @@ freebsd*)
   esac
   ;;
 
+darwin* | rhapsody*)
+  deplibs_check_method='file_magic Mach-O dynamically linked shared library'
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=`echo System/Library/Frameworks/System.framework/Versions/*/System | head -1`
+  library_names_spec='${libname}.$(if [ "$module" = "yes" ]; then echo so; else echo dylib; fi)'
+  need_lib_prefix=no
+  need_version=no
+  postinstall_cmds='chmod +x $lib'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  ;;
+
 gnu*)
   version_type=linux
   need_lib_prefix=no

build/ltmain.sh

@@ -1084,6 +1084,10 @@ compiler."
 	    # These systems don't actually have c library (as such)
 	    continue
 	    ;;
+          *-*-rhapsody* | *-*-darwin*)
+            # Darwin C library is in the System framework
+            deplibs="$deplibs -framework System"
+            ;;
 	  esac
 	elif test "$arg" = "-lm"; then
 	  case "$host" in
@@ -1091,6 +1095,10 @@ compiler."
 	    # These systems don't actually have math library (as such)
 	    continue
 	    ;;
+          *-*-rhapsody* | *-*-darwin*)
+            # Darwin math library is in the System framework
+            deplibs="$deplibs -framework System"
+            ;;
 	  esac
 	fi
 	deplibs="$deplibs $arg"