From cdbc9e924d0b3a02373bd753c1e7b2ecf7e649b0 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Tue, 5 Feb 2013 22:36:20 +0000
Subject: [PATCH] re PR go/55969 (libgo fails to build on darwin)

	PR go/55969
	* configure.ac: Disable libgo on some systems where it does not
	work.

From-SVN: r195768
---
 configure    | 17 +++++++++++++++++
 configure.ac | 17 +++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/configure b/configure
index e669aa0ef2e..caa34cae8f2 100755
--- a/configure
+++ b/configure
@@ -3413,6 +3413,23 @@ case "${target}" in
     ;;
 esac
 
+# Disable libgo for some systems where it is known to not work.
+# For testing, you can easily override this with --enable-libgo.
+if test x$enable_libgo = x; then
+    case "${target}" in
+    *-*-darwin*)
+	# PR 46986
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    *-*-cygwin* | *-*-mingw*)
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    *-*-aix*)
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    esac
+fi
+
 # Default libgloss CPU subdirectory.
 libgloss_dir="$target_cpu"
 
diff --git a/configure.ac b/configure.ac
index 739cdc786cc..f2be8abcc19 100644
--- a/configure.ac
+++ b/configure.ac
@@ -752,6 +752,23 @@ case "${target}" in
     ;; 
 esac
 
+# Disable libgo for some systems where it is known to not work.
+# For testing, you can easily override this with --enable-libgo.
+if test x$enable_libgo = x; then
+    case "${target}" in
+    *-*-darwin*)
+	# PR 46986
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    *-*-cygwin* | *-*-mingw*)
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    *-*-aix*)
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    esac
+fi
+
 # Default libgloss CPU subdirectory.
 libgloss_dir="$target_cpu"