r305399 - Define _GNU_SOURCE for rtems c++

[James Y Knight via cfe-commits]

Author: jyknight
Date: Wed Jun 14 12:01:18 2017
New Revision: 305399

URL: http://llvm.org/viewvc/llvm-project?rev=305399&view=rev
Log:
Define _GNU_SOURCE for rtems c++

This is required by the libc++ locale support.

Patch by Walter Lee.

Differential Revision: https://reviews.llvm.org/D34105

Modified:
    cfe/trunk/lib/Basic/Targets.cpp
    cfe/trunk/test/Preprocessor/init.c

Modified: cfe/trunk/lib/Basic/Targets.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=305399&r1=305398&r2=305399&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Wed Jun 14 12:01:18 2017
@@ -4734,6 +4734,9 @@ protected:
 
     Builder.defineMacro("__rtems__");
     Builder.defineMacro("__ELF__");
+    // Required by the libc++ locale support.
+    if (Opts.CPlusPlus)
+      Builder.defineMacro("_GNU_SOURCE");
   }
 
 public:

Modified: cfe/trunk/test/Preprocessor/init.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/init.c?rev=305399&r1=305398&r2=305399&view=diff
==============================================================================
--- cfe/trunk/test/Preprocessor/init.c (original)
+++ cfe/trunk/test/Preprocessor/init.c Wed Jun 14 12:01:18 2017
@@ -8779,6 +8779,7 @@
 // KFREEBSDI686-DEFINE:#define __GLIBC__ 1
 //
 // RUN: %clang_cc1 -x c++ -triple i686-pc-linux-gnu -fobjc-runtime=gcc -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix GNUSOURCE %s
+// RUN: %clang_cc1 -x c++ -triple sparc-rtems-elf -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix GNUSOURCE %s
 // GNUSOURCE:#define _GNU_SOURCE 1
 //
 // RUN: %clang_cc1 -x c++ -std=c++98 -fno-rtti -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix NORTTI %s