* src/w32fns.c (emacs_abort) [CYGWIN]: Define `_open' as a macro.

diff --git a/src/ChangeLog b/src/ChangeLog
index a374784..c4e5753 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,9 @@
 2013-03-24  Ken Brown  <kbrown@cornell.edu>
 
+       * w32fns.c (emacs_abort) [CYGWIN]: Define `_open' as a macro to
+       fix compilation on 64-bit Cygwin, where underscores are not
+       automatically prepended.
+
        * w32term.c (w32_initialize): Silence compiler warning.
 
 2013-03-23  Eli Zaretskii  <eliz@gnu.org>

diff --git a/src/w32fns.c b/src/w32fns.c
index 4c47465..8814189 100644 (file)
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -7759,6 +7759,9 @@ emacs_abort (void)
 #endif
            if (stderr_fd >= 0)
              write (stderr_fd, "\r\nBacktrace:\r\n", 14);
+#ifdef CYGWIN
+#define _open open
+#endif
            errfile_fd = _open ("emacs_backtrace.txt", O_RDWR | O_CREAT | O_BINARY, S_IREAD | S_IWRITE);
            if (errfile_fd >= 0)
              {