(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

posix/regex.c

@@ -1,5 +1,5 @@
 /* Extended regular expression matching and search library.
-   Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 
@@ -22,9 +22,28 @@
 #include "config.h"
 #endif
 
-/* Make sure noone compiles this code with a C++ compiler.  */
-#ifdef __cplusplus
-# error "This is C code, use a C compiler"
+#ifdef _AIX
+#pragma alloca
+#else
+# ifndef allocax           /* predefined by HP cc +Olibcalls */
+#  ifdef __GNUC__
+#   define alloca(size) __builtin_alloca (size)
+#  else
+#   if HAVE_ALLOCA_H
+#    include <alloca.h>
+#   else
+#    ifdef __hpux
+        void *alloca ();
+#    else
+#     if !defined __OS2__ && !defined WIN32
+        char *alloca ();
+#     else
+#      include <malloc.h>       /* OS/2 defines alloca in here */
+#     endif
+#    endif
+#   endif
+#  endif
+# endif
 #endif
 
 #ifdef _LIBC
@@ -52,6 +71,10 @@
 # include "../locale/localeinfo.h"
 #endif
 
+/* POSIX says that <sys/types.h> must be included (by the caller) before
+   <regex.h>.  */
+#include <sys/types.h>
+
 /* On some systems, limits.h sets RE_DUP_MAX to a lower value than
    GNU regex allows.  Include it before <regex.h>, which correctly
    #undefs RE_DUP_MAX and sets it to the right value.  */