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-rw-r--r--lib/alloca.in.h42
1 files changed, 20 insertions, 22 deletions
diff --git a/lib/alloca.in.h b/lib/alloca.in.h
index 09c5416..e2b1461 100644
--- a/lib/alloca.in.h
+++ b/lib/alloca.in.h
@@ -1,31 +1,20 @@
/* Memory allocation on the stack.
- Copyright (C) 1995, 1999, 2001-2004, 2006-2018 Free Software Foundation,
+ Copyright (C) 1995, 1999, 2001-2004, 2006-2022 Free Software Foundation,
Inc.
- This program is free software: you can redistribute it and/or
- modify it under the terms of either:
+ This file is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
- * the GNU Lesser General Public License as published by the Free
- Software Foundation; either version 3 of the License, or (at your
- option) any later version.
-
- or
-
- * the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your
- option) any later version.
-
- or both in parallel, as here.
- This program is distributed in the hope that it will be useful,
+ This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
- You should have received a copy of the GNU General Public
- License along with this program; if not, see
- <https://www.gnu.org/licenses/>.
- */
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Avoid using the symbol _ALLOCA_H here, as Bison assumes _ALLOCA_H
means there is a real alloca function. */
@@ -44,7 +33,16 @@
*/
#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 needed. */
+# if defined __GNUC__ && (defined _WIN32 && ! defined __CYGWIN__) && @HAVE_ALLOCA_H@
+# include_next <alloca.h>
+# endif
+#endif
+#ifndef alloca
+# if defined __GNUC__ || (__clang_major__ >= 4)
# define alloca __builtin_alloca
# elif defined _AIX
# define alloca __alloca