8283260: gcc is not supported on mac

Reviewed-by: erikj

Author: magicus

make/autoconf/flags-ldflags.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -95,13 +95,10 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_HELPER],
   fi
 
   # Setup OS-dependent LDFLAGS
-  if test "x$TOOLCHAIN_TYPE" = xclang || test "x$TOOLCHAIN_TYPE" = xgcc; then
-    if test "x$OPENJDK_TARGET_OS" = xmacosx; then
-      # Assume clang or gcc.
-      # FIXME: We should really generalize SET_SHARED_LIBRARY_ORIGIN instead.
-      OS_LDFLAGS_JVM_ONLY="-Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.."
-      OS_LDFLAGS="-mmacosx-version-min=$MACOSX_VERSION_MIN"
-    fi
+  if test "x$OPENJDK_TARGET_OS" = xmacosx && test "x$TOOLCHAIN_TYPE" = xclang; then
+    # FIXME: We should really generalize SET_SHARED_LIBRARY_ORIGIN instead.
+    OS_LDFLAGS_JVM_ONLY="-Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.."
+    OS_LDFLAGS="-mmacosx-version-min=$MACOSX_VERSION_MIN"
   fi
 
   # Setup debug level-dependent LDFLAGS

make/autoconf/toolchain.m4

@@ -39,7 +39,7 @@ VALID_TOOLCHAINS_all="gcc clang xlc microsoft"
 
 # These toolchains are valid on different platforms
 VALID_TOOLCHAINS_linux="gcc clang"
-VALID_TOOLCHAINS_macosx="gcc clang"
+VALID_TOOLCHAINS_macosx="clang"
 VALID_TOOLCHAINS_aix="xlc"
 VALID_TOOLCHAINS_windows="microsoft"
 
@@ -901,8 +901,8 @@ AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
       BUILD_LDCXX="$BUILD_LD"
     else
       if test "x$OPENJDK_BUILD_OS" = xmacosx; then
-        UTIL_REQUIRE_PROGS(BUILD_CC, clang cc gcc)
-        UTIL_REQUIRE_PROGS(BUILD_CXX, clang++ CC g++)
+        UTIL_REQUIRE_PROGS(BUILD_CC, clang)
+        UTIL_REQUIRE_PROGS(BUILD_CXX, clang++)
       else
         UTIL_REQUIRE_PROGS(BUILD_CC, cc gcc)
         UTIL_REQUIRE_PROGS(BUILD_CXX, CC g++)