-#serial 28
+#serial 39
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005 Free
-# Software Foundation, Inc.
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+# 2006 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
AC_DEFUN([gl_REGEX],
[
- AC_LIBSOURCES(
- [regcomp.c, regex.c, regex.h,
- regex_internal.c, regex_internal.h, regexec.c])
-
AC_ARG_WITH([included-regex],
[AC_HELP_STRING([--without-included-regex],
[don't compile regex; this is the default on
systems with recent-enough versions of the GNU C
Library (use with caution on other systems)])])
- case $with_included_regex in
+ case $with_included_regex in #(
yes|no) ac_use_included_regex=$with_included_regex
;;
'')
- # If the system regex support is good enough that it passes the the
+ # If the system regex support is good enough that it passes the
# following run test, then default to *not* using the included regex.c.
# If cross compiling, assume the test would fail and use the included
# regex.c. The first failing regular expression is from `Spencer ere
# test #75' in grep-2.3.
AC_CACHE_CHECK([for working re_compile_pattern],
- [gl_cv_func_re_compile_pattern_broken],
+ [gl_cv_func_re_compile_pattern_working],
[AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[AC_INCLUDES_DEFAULT
- #include <regex.h>],
+ #include <limits.h>
+ #include <regex.h>
+ ],
[[static struct re_pattern_buffer regex;
+ unsigned char folded_chars[UCHAR_MAX + 1];
+ int i;
const char *s;
struct re_registers regs;
- /* Use the POSIX-compliant spelling with leading REG_,
- rather than the traditional GNU spelling with leading RE_,
- so that we reject older libc implementations. */
- re_set_syntax (REG_SYNTAX_POSIX_EGREP);
+ re_set_syntax (RE_SYNTAX_POSIX_EGREP);
memset (®ex, 0, sizeof (regex));
- s = re_compile_pattern ("a[:@:>@:]b\n", 9, ®ex);
+ for (i = 0; i <= UCHAR_MAX; i++)
+ folded_chars[i] = i;
+ regex.translate = folded_chars;
+ s = re_compile_pattern ("a[[:@:>@:]]b\n", 11, ®ex);
/* This should fail with _Invalid character class name_ error. */
if (!s)
exit (1);
exit (1);
/* The version of regex.c in older versions of gnulib
- ignored REG_IGNORE_CASE (which was then called RE_ICASE).
- Detect that problem too. */
+ ignored RE_ICASE. Detect that problem too. */
memset (®ex, 0, sizeof (regex));
- re_set_syntax (REG_SYNTAX_EMACS | REG_IGNORE_CASE);
+ re_set_syntax (RE_SYNTAX_EMACS | RE_ICASE);
s = re_compile_pattern ("x", 1, ®ex);
if (s)
exit (1);
if (! REG_STARTEND)
exit (1);
+ /* Reject hosts whose regoff_t values are too narrow.
+ These include glibc 2.3.5 on hosts with 64-bit ptrdiff_t
+ and 32-bit int. */
+ if (sizeof (regoff_t) < sizeof (ptrdiff_t)
+ || sizeof (regoff_t) < sizeof (ssize_t))
+ exit (1);
+
exit (0);]])],
- [gl_cv_func_re_compile_pattern_broken=no],
- [gl_cv_func_re_compile_pattern_broken=yes],
- dnl When crosscompiling, assume it is broken.
- [gl_cv_func_re_compile_pattern_broken=yes])])
- ac_use_included_regex=$gl_cv_func_re_compile_pattern_broken
+ [gl_cv_func_re_compile_pattern_working=yes],
+ [gl_cv_func_re_compile_pattern_working=no],
+ dnl When crosscompiling, assume it is not working.
+ [gl_cv_func_re_compile_pattern_working=no])])
+ case $gl_cv_func_re_compile_pattern_working in #(
+ yes) ac_use_included_regex=no;; #(
+ no) ac_use_included_regex=yes;;
+ esac
;;
*) AC_MSG_ERROR([Invalid value for --with-included-regex: $with_included_regex])
;;
esac
if test $ac_use_included_regex = yes; then
+ AC_DEFINE([_REGEX_LARGE_OFFSETS], 1,
+ [Define if you want regoff_t to be at least as wide POSIX requires.])
+ AC_DEFINE([re_syntax_options], [rpl_re_syntax_options],
+ [Define to rpl_re_syntax_options if the replacement should be used.])
+ AC_DEFINE([re_set_syntax], [rpl_re_set_syntax],
+ [Define to rpl_re_set_syntax if the replacement should be used.])
+ AC_DEFINE([re_compile_pattern], [rpl_re_compile_pattern],
+ [Define to rpl_re_compile_pattern if the replacement should be used.])
+ AC_DEFINE([re_compile_fastmap], [rpl_re_compile_fastmap],
+ [Define to rpl_re_compile_fastmap if the replacement should be used.])
+ AC_DEFINE([re_search], [rpl_re_search],
+ [Define to rpl_re_search if the replacement should be used.])
+ AC_DEFINE([re_search_2], [rpl_re_search_2],
+ [Define to rpl_re_search_2 if the replacement should be used.])
+ AC_DEFINE([re_match], [rpl_re_match],
+ [Define to rpl_re_match if the replacement should be used.])
+ AC_DEFINE([re_match_2], [rpl_re_match_2],
+ [Define to rpl_re_match_2 if the replacement should be used.])
+ AC_DEFINE([re_set_registers], [rpl_re_set_registers],
+ [Define to rpl_re_set_registers if the replacement should be used.])
+ AC_DEFINE([re_comp], [rpl_re_comp],
+ [Define to rpl_re_comp if the replacement should be used.])
+ AC_DEFINE([re_exec], [rpl_re_exec],
+ [Define to rpl_re_exec if the replacement should be used.])
+ AC_DEFINE([regcomp], [rpl_regcomp],
+ [Define to rpl_regcomp if the replacement should be used.])
+ AC_DEFINE([regexec], [rpl_regexec],
+ [Define to rpl_regexec if the replacement should be used.])
+ AC_DEFINE([regerror], [rpl_regerror],
+ [Define to rpl_regerror if the replacement should be used.])
+ AC_DEFINE([regfree], [rpl_regfree],
+ [Define to rpl_regfree if the replacement should be used.])
AC_LIBOBJ([regex])
gl_PREREQ_REGEX
fi
AC_DEFUN([gl_PREREQ_REGEX],
[
AC_REQUIRE([AC_GNU_SOURCE])
- AC_REQUIRE([gl_C_RESTRICT])
+ AC_REQUIRE([AC_C_RESTRICT])
AC_REQUIRE([AM_LANGINFO_CODESET])
AC_CHECK_HEADERS_ONCE([locale.h wchar.h wctype.h])
- AC_CHECK_FUNCS_ONCE([isblank mbrtowc mempcpy wcrtomb wcscoll])
+ AC_CHECK_FUNCS_ONCE([mbrtowc mempcpy wcrtomb wcscoll])
+ AC_CHECK_DECLS([isblank], [], [], [#include <ctype.h>])
])