[MinGW-cvs] [git push mingw-org-wsl]Repository: mingw-org-wsl branch 5.0-active updated. 617f15b16863cb5d542d1134e44e8fbd72739ad4

[Keith M. <no...@so...>]

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- Log -----------------------------------------------------------------
https://sf.net/p/mingw/mingw-org-wsl/ci/617f15b16863cb5d542d1134e44e8fbd72739ad4/

commit 617f15b16863cb5d542d1134e44e8fbd72739ad4
Author: Keith Marshall <kei...@us...>
Date:   Thu Feb 16 22:07:56 2017 +0000

    Work around GCC bug; force C++11 to support std::wcstof().

diff --git a/mingwrt/ChangeLog b/mingwrt/ChangeLog
index e3ffe46..03e10a5 100644
--- a/mingwrt/ChangeLog
+++ b/mingwrt/ChangeLog
@@ -1,3 +1,12 @@
+2017-02-16  Keith Marshall  <kei...@us...>
+
+	Work around GCC bug; force C++11 to support std::wcstof().
+
+	* include/_mingw.h [_ISOC99_SOURCE && __cplusplus >= 201103L]
+	[__GNUC__ < 6] (_GLIBCXX_HAVE_WCSTOF): Define it to 1; it is required
+	because, prior to GCC-6, GCC's configuration process fails to specify
+	it correctly, and so invalidates its own <string> header file.
+
 2017-02-12  Keith Marshall  <kei...@us...>
 
 	Support brace expansion in globbing patterns.
diff --git a/mingwrt/include/_mingw.h.in b/mingwrt/include/_mingw.h.in
index da4ea87..5e54a22 100644
--- a/mingwrt/include/_mingw.h.in
+++ b/mingwrt/include/_mingw.h.in
@@ -504,9 +504,10 @@ allow GCC to optimize away some EH unwind code, at least in DW2 case.  */
  /* Due to a configuration defect in GCC versions prior to GCC-6, when
   * compiling C++11 code, the ISO-C99 functions may not be incorporated
   * into the appropriate namespace(s); we may be able to mitigate this,
-  * by ensuring that this GCC configuration macro is defined.
+  * by ensuring that these GCC configuration macros are defined.
   */
-# define _GLIBCXX_USE_C99  1
+# define _GLIBCXX_USE_C99	1
+# define _GLIBCXX_HAVE_WCSTOF	1
 #endif
 
 #if ! defined _MINGW32_SOURCE_EXTENDED && ! defined __STRICT_ANSI__

-----------------------------------------------------------------------

Summary of changes:
 mingwrt/ChangeLog           | 9 +++++++++
 mingwrt/include/_mingw.h.in | 5 +++--
 2 files changed, 12 insertions(+), 2 deletions(-)


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