[Emacs-diffs] master 69e03dd: Unbreak the MinGW64 build

[Eli Zaretskii]

branch: master
commit 69e03ddccf47fc29126317dd3317313ecd92b797
Author: Eli Zaretskii <address@hidden>
Commit: Eli Zaretskii <address@hidden>

    Unbreak the MinGW64 build
    
    * nt/inc/ms-w32.h [MINGW_W64]: Undefine HAVE_GAI_STRERROR.  See
    http://lists.gnu.org/archive/html/emacs-devel/2016-03/msg00130.html
    for the details.  Reported by Angelo Graziosi
    <address@hidden>.
---
 nt/inc/ms-w32.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/nt/inc/ms-w32.h b/nt/inc/ms-w32.h
index a37510e..9de3b12 100644
--- a/nt/inc/ms-w32.h
+++ b/nt/inc/ms-w32.h
@@ -185,6 +185,13 @@ extern struct tm * sys_localtime (const time_t *);
    supply the 2nd arg correctly, so don't use _setjmp directly in that
    case.  */
 #undef HAVE__SETJMP
+
+/* Unlike MS and mingw.org, MinGW64 doesn't define gai_strerror as an
+   inline function in a system header file, and instead seems to
+   require to link against ws2_32.a.  But we don't want to link with
+   -lws2_32, as that would make Emacs dependent on the respective DLL.
+   So MinGW64 is amply punished here by the following:  */
+#undef HAVE_GAI_STRERROR
 #endif
 
 /* The following is needed for recovery from C stack overflows.  */