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changeset 17257:83362ee4d224

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regex: support Gawk, which never uses alloca * lib/regex_internal.h [!_LIBC && !HAVE_ALLOCA]: Do not include in this case. Gawk doesn't supply a substitute alloca.h and doesn't need one.
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 01 Jan 2013 16:05:43 -0800
parents 12cc1647eb5b
children 28b073aabf32
files ChangeLog lib/regex_internal.h
diffstat 2 files changed, 8 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2013-01-01  Paul Eggert  <eggert@cs.ucla.edu>
 
+	regex: support Gawk, which never uses alloca
+	* lib/regex_internal.h [!_LIBC && !HAVE_ALLOCA]:
+	Do not include in this case.  Gawk doesn't supply a substitute
+	alloca.h and doesn't need one.
+
 	regex: port __libc_lock_define usage to C89
 	* lib/regex_internal.h (__libc_lock_define) [!_LIBC]: Remove.
 	(struct re_dfa_t): Use #ifdef instead.  '__libc_lock_define (, lock)'
--- a/lib/regex_internal.h
+++ b/lib/regex_internal.h
@@ -445,7 +445,9 @@
 #define re_string_skip_bytes(pstr,idx) ((pstr)->cur_idx += (idx))
 #define re_string_set_index(pstr,idx) ((pstr)->cur_idx = (idx))
 
-#include <alloca.h>
+#if defined _LIBC || HAVE_ALLOCA
+# include <alloca.h>
+#endif
 
 #ifndef _LIBC
 # if HAVE_ALLOCA