Another boot strap fix

[Andi Kleen]

Without this patch bootstrap errors out with

In file included from ./plugin-version.h:1:0,
                 from ../../gcc/gcc/plugin.c:34:
./configargs.h:3:19: error: 'thread_model' defined but not used [-Werror=unused-variable]
 static const char thread_model[] = "posix";
                   ^~~~~~~~~~~~

gcc/:
2015-11-15  Andi Kleen  <ak@linux.intel.com>

	* configure.ac: Make configargs.h variables global.
	Add name to structure.
	* configure: dito.

diff --git a/gcc/configure b/gcc/configure
index d5f6dd4..1f68744 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -11794,10 +11794,11 @@ rm -f conftest.out
 
 cat > configargs.h <<EOF
 /* Generated automatically. */
-static const char configuration_arguments[] = "$gcc_config_arguments_str";
-static const char thread_model[] = "$thread_file";
+char configuration_arguments[] = "$gcc_config_arguments_str";
+char thread_model[] = "$thread_file";
 
-static const struct {
+/* struct has to have a name to pacify C++ */
+struct gcc_opts {
   const char *name, *value;
 } configure_default_options[] = $configure_default_options;
 EOF
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 34df549..4fb7993 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1707,10 +1707,11 @@ rm -f conftest.out
 
 cat > configargs.h <<EOF
 /* Generated automatically. */
-static const char configuration_arguments[] = "$gcc_config_arguments_str";
-static const char thread_model[] = "$thread_file";
+char configuration_arguments[] = "$gcc_config_arguments_str";
+char thread_model[] = "$thread_file";
 
-static const struct {
+/* struct has to have a name to pacify C++ */
+struct gcc_opts {
   const char *name, *value;
 } configure_default_options[] = $configure_default_options;
 EOF


-- 
ak@linux.intel.com -- Speaking for myself only.