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authorBruno Haible <bruno@clisp.org>2020-06-30 00:54:54 +0200
committerBruno Haible <bruno@clisp.org>2020-06-30 00:54:54 +0200
commit160672dd02c56f0feffc250acd3bf241418b849b (patch)
tree7ff312e619e515b08e855e617c469c9ad412cf92
parenta01be1645717a029e571fd0dbb42245f05aff88c (diff)
downloadgnulib-160672dd02c56f0feffc250acd3bf241418b849b.tar.gz
alloca-opt: Fix warning on mingw.
Reported and solution by Eli Zaretskii <eliz@gnu.org> in <https://lists.gnu.org/archive/html/bug-gnulib/2020-06/msg00069.html>. * lib/alloca.in.h: On mingw, include <alloca.h> and then test again whether alloca is defined.
-rw-r--r--ChangeLog8
-rw-r--r--lib/alloca.in.h15
2 files changed, 17 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog
index c6e26120ea..e0b5ace41b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2020-06-29 Bruno Haible <bruno@clisp.org>
+
+ alloca-opt: Fix warning on mingw.
+ Reported and solution by Eli Zaretskii <eliz@gnu.org> in
+ <https://lists.gnu.org/archive/html/bug-gnulib/2020-06/msg00069.html>.
+ * lib/alloca.in.h: On mingw, include <alloca.h> and then test again
+ whether alloca is defined.
+
2020-06-28 Paul Eggert <eggert@cs.ucla.edu>
getrandom: do not depend on ‘open’ on mingw
diff --git a/lib/alloca.in.h b/lib/alloca.in.h
index 73516ca3fb..beb022cf65 100644
--- a/lib/alloca.in.h
+++ b/lib/alloca.in.h
@@ -35,13 +35,16 @@
*/
#ifndef alloca
+ /* Some version of mingw have an <alloca.h> that causes trouble when
+ included after 'alloca' gets defined as a macro. As a workaround,
+ include this <alloca.h> first and define 'alloca' as a macro afterwards
+ if needed. */
+# if defined __GNUC__ && (defined _WIN32 && ! defined __CYGWIN__) && @HAVE_ALLOCA_H@
+# include_next <alloca.h>
+# endif
+#endif
+#ifndef alloca
# ifdef __GNUC__
- /* Some version of mingw have an <alloca.h> that causes trouble when
- included after 'alloca' gets defined as a macro. As a workaround, include
- this <alloca.h> first and define 'alloca' as a macro afterwards. */
-# if (defined _WIN32 && ! defined __CYGWIN__) && @HAVE_ALLOCA_H@
-# include_next <alloca.h>
-# endif
# define alloca __builtin_alloca
# elif defined _AIX
# define alloca __alloca