configure: Work around an Xcode 3.0 bug when detecting the libGL library.

configure

@@ -10479,14 +10479,97 @@ fi
 if test "x$ac_cv_lib_soname_GL" = "x"; then
   { echo "$as_me:$LINENO: result: not found" >&5
 echo "${ECHO_T}not found" >&6; }
+       { echo "$as_me:$LINENO: checking for -lGL" >&5
+echo $ECHO_N "checking for -lGL... $ECHO_C" >&6; }
+if test "${ac_cv_lib_soname_GL+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_soname_save_LIBS=$LIBS
+LIBS="-lGL $X_LIBS -lXext -lX11 -lm $X_EXTRA_LIBS -dylib_file /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib $LIBS"
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char glXCreateContext ();
+int
+main ()
+{
+return glXCreateContext ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  case "$LIBEXT" in
+    dll) ;;
+    dylib) ac_cv_lib_soname_GL=`otool -L conftest$ac_exeext | grep "libGL\\.[0-9A-Za-z.]*dylib" | sed -e "s/^.*\/\(libGL\.[0-9A-Za-z.]*dylib\).*$/\1/"';2,$d'` ;;
+    *) ac_cv_lib_soname_GL=`$ac_cv_path_LDD conftest$ac_exeext | grep "libGL\\.$LIBEXT" | sed -e "s/^.*\(libGL\.$LIBEXT[^	 ]*\).*$/\1/"';2,$d'` ;;
+  esac
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+  LIBS=$ac_check_soname_save_LIBS
+fi
+if test "x$ac_cv_lib_soname_GL" = "x"; then
+  { echo "$as_me:$LINENO: result: not found" >&5
+echo "${ECHO_T}not found" >&6; }
        if test -f /usr/X11R6/lib/libGL.a
-                              then
-                                  wine_warnings="$wine_warnings|/usr/X11R6/lib/libGL.a is present on your system.
+	                            then
+		                        wine_warnings="$wine_warnings|/usr/X11R6/lib/libGL.a is present on your system.
 This probably prevents linking to OpenGL. Try deleting the file and restarting configure."
-                              else
-                                  wine_warnings="$wine_warnings|No OpenGL library found on this system.
+	                            else
+	                                wine_warnings="$wine_warnings|No OpenGL library found on this system.
 Wine will be built without OpenGL or Direct3D support."
-                              fi
+	                            fi
+else
+  { echo "$as_me:$LINENO: result: $ac_cv_lib_soname_GL" >&5
+echo "${ECHO_T}$ac_cv_lib_soname_GL" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define SONAME_LIBGL "$ac_cv_lib_soname_GL"
+_ACEOF
+
+       OPENGL_LIBS="-Xlinker -dylib_file -Xlinker /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib -lGL"
+	                            OPENGLFILES='$(OPENGLFILES)'
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_OPENGL 1
+_ACEOF
+
+fi
+
 else
   { echo "$as_me:$LINENO: result: $ac_cv_lib_soname_GL" >&5
 echo "${ECHO_T}$ac_cv_lib_soname_GL" >&6; }

configure.ac

@@ -651,14 +651,19 @@ Wine will be built without XComposite support. (winex11.drv)])
 			     [OPENGL_LIBS="-lGL"
                              OPENGLFILES='$(OPENGLFILES)'
                              AC_DEFINE(HAVE_OPENGL, 1, [Define if OpenGL is present on the system])],
-                             [if test -f /usr/X11R6/lib/libGL.a
-                              then
-                                  WINE_WARNING([/usr/X11R6/lib/libGL.a is present on your system.
+                             [WINE_CHECK_SONAME(GL,glXCreateContext,
+				    [OPENGL_LIBS="-Xlinker -dylib_file -Xlinker /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib -lGL"
+	                            OPENGLFILES='$(OPENGLFILES)'
+	                            AC_DEFINE(HAVE_OPENGL, 1, [Define if OpenGL is present on the system])],
+				    [if test -f /usr/X11R6/lib/libGL.a
+	                            then
+		                        WINE_WARNING([/usr/X11R6/lib/libGL.a is present on your system.
 This probably prevents linking to OpenGL. Try deleting the file and restarting configure.])
-                              else
-                                  WINE_WARNING([No OpenGL library found on this system.
+	                            else
+	                                WINE_WARNING([No OpenGL library found on this system.
 Wine will be built without OpenGL or Direct3D support.])
-                              fi],
+	                            fi],
+				    $X_LIBS -lXext -lX11 -lm $X_EXTRA_LIBS -dylib_file /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib)],
 			     $X_LIBS -lXext -lX11 -lm $X_EXTRA_LIBS)
 
 	        dnl Check for GLU32 library.