* config/alpha/osf.h (TARGET_OS_CPP_BUILTINS): Rename

	__EXTERN_PREFIX to __PRAGMA_EXTERN_PREFIX.
	* doc/extend.texi (Tru64 Pragmas): Reflect this.

	* fixinc/inclhack.def (alpha___extern_prefix): Indicate #pragma
	extern_prefix support for Tru64 UNIX V5 <sys/stat.h>.
	* fixinc/fixincl.x: Regenerate.
	* fixinc/tests/base/sys/stat.h [ALPHA___EXTERN_PREFIX_CHECK]: New
	testcase.
	Fixes PR c/5059, c/6126, other/9671.

	testsuite:
	* g++.dg/other/pragma-ep-1.C: Test for __PRAGMA_EXTERN_PREFIX.
	* gcc.dg/pragma-ep-1.c: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63370 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 59 insertions, 0 deletions

diff --git a/gcc/fixinc/fixincl.x b/gcc/fixinc/fixincl.x
index 017b748fc73..2f712c7ddd5 100644
--- a/gcc/fixinc/fixincl.x
+++ b/gcc/fixinc/fixincl.x
@@ -711,6 +711,43 @@ static const char* apzAlpha___AssertPatch[] = {
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * *
  *
+ *  Description of Alpha___Extern_Prefix fix
+ */
+tSCC zAlpha___Extern_PrefixName[] =
+     "alpha___extern_prefix";
+
+/*
+ *  File name selection pattern
+ */
+tSCC zAlpha___Extern_PrefixList[] =
+  "|sys/stat.h|";
+/*
+ *  Machine/OS name selection pattern
+ */
+tSCC* apzAlpha___Extern_PrefixMachs[] = {
+        "alpha*-dec-osf5*",
+        (const char*)NULL };
+
+/*
+ *  content selection pattern - do fix if pattern found
+ */
+tSCC zAlpha___Extern_PrefixSelect0[] =
+       "#[ \t]*if[ \t]*defined\\(__DECC\\)";
+
+#define    ALPHA___EXTERN_PREFIX_TEST_CT  1
+static tTestDesc aAlpha___Extern_PrefixTests[] = {
+  { TT_EGREP,    zAlpha___Extern_PrefixSelect0, (regex_t*)NULL }, };
+
+/*
+ *  Fix Command Arguments for Alpha___Extern_Prefix
+ */
+static const char* apzAlpha___Extern_PrefixPatch[] = {
+    "format",
+    "%0 || defined(__PRAGMA_EXTERN_PREFIX)",
+    (char*)NULL };
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * *
+ *
  *  Description of Alpha_Assert fix
  */
 tSCC zAlpha_AssertName[] =
@@ -5788,6 +5825,7 @@ typedef enum {
     AIX_SYSWAIT_FIXIDX,
     AIX_VOLATILE_FIXIDX,
     ALPHA___ASSERT_FIXIDX,
+    ALPHA___EXTERN_PREFIX_FIXIDX,
     ALPHA_ASSERT_FIXIDX,
     ALPHA_GETOPT_FIXIDX,
     ALPHA_PARENS_FIXIDX,
@@ -5993,6 +6031,11 @@ tFixDesc fixDescList[ FIX_COUNT ] = {
      ALPHA___ASSERT_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
      aAlpha___AssertTests,   apzAlpha___AssertPatch, 0 },
 
+  {  zAlpha___Extern_PrefixName,    zAlpha___Extern_PrefixList,
+     apzAlpha___Extern_PrefixMachs,
+     ALPHA___EXTERN_PREFIX_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
+     aAlpha___Extern_PrefixTests,   apzAlpha___Extern_PrefixPatch, 0 },
+
   {  zAlpha_AssertName,    zAlpha_AssertList,
      apzAlpha_AssertMachs,
      ALPHA_ASSERT_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
diff --git a/gcc/fixinc/inclhack.def b/gcc/fixinc/inclhack.def
index 5ff0e9a42fb..619f6965809 100644
--- a/gcc/fixinc/inclhack.def
+++ b/gcc/fixinc/inclhack.def
@@ -523,6 +523,22 @@ fix = {
 
 
 /*
+ *  Obey __PRAGMA_EXTERN_PREFIX for Tru64 UNIX V5 <sys/stat.h>.
+ */
+fix = {
+    hackname  = alpha___extern_prefix;
+    files     = sys/stat.h;
+    select    = "#[ \t]*if[ \t]*defined\\(__DECC\\)";
+
+    mach      = "alpha*-dec-osf5*";
+    c_fix     = format;
+    c_fix_arg = "%0 || defined(__PRAGMA_EXTERN_PREFIX)";
+
+    test_text = "#   if defined(__DECC)";
+};
+
+
+/*
  *  Fix assert macro in assert.h on Alpha OSF/1.
  *  The superfluous int cast breaks C++.
  */