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[Cvs-cvs] Changes to ccvs/m4/regex.m4
From: |
Derek Robert Price |
Subject: |
[Cvs-cvs] Changes to ccvs/m4/regex.m4 |
Date: |
Fri, 12 Aug 2005 16:57:48 -0400 |
Index: ccvs/m4/regex.m4
diff -u ccvs/m4/regex.m4:1.3 ccvs/m4/regex.m4:1.4
--- ccvs/m4/regex.m4:1.3 Tue Mar 1 18:15:07 2005
+++ ccvs/m4/regex.m4 Fri Aug 12 20:57:46 2005
@@ -1,6 +1,6 @@
-#serial 22
+#serial 24
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004 Free
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005 Free
# Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
@@ -19,6 +19,10 @@
dnl
AC_DEFUN([gl_INCLUDED_REGEX],
[
+ AC_LIBSOURCES(
+ [regcomp.c, regex.c, regex.h,
+ regex_internal.c, regex_internal.h, regexec.c])
+
dnl Even packages that don't use regex.c can use this macro.
dnl Of course, for them it doesn't do anything.
@@ -31,75 +35,86 @@
# 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],
- jm_cv_func_working_re_compile_pattern,
- AC_TRY_RUN(
-[#include <stdio.h>
-#include <string.h>
-#include <regex.h>
- int
- main ()
- {
- static struct re_pattern_buffer regex;
- const char *s;
- struct re_registers regs;
- re_set_syntax (RE_SYNTAX_POSIX_EGREP);
- memset (®ex, 0, sizeof (regex));
- [s = re_compile_pattern ("a[[:@:>@:]]b\n", 9, ®ex);]
- /* This should fail with _Invalid character class name_ error. */
- if (!s)
- exit (1);
-
- /* This should succeed, but doesn't for e.g. glibc-2.1.3. */
- memset (®ex, 0, sizeof (regex));
- s = re_compile_pattern ("{1", 2, ®ex);
-
- if (s)
- exit (1);
-
- /* The following example is derived from a problem report
- against gawk from Jorge Stolfi <address@hidden>. */
- memset (®ex, 0, sizeof (regex));
- s = re_compile_pattern ("[[an\371]]*n", 7, ®ex);
- if (s)
- exit (1);
-
- /* This should match, but doesn't for e.g. glibc-2.2.1. */
- if (re_match (®ex, "an", 2, 0, ®s) != 2)
- exit (1);
-
- memset (®ex, 0, sizeof (regex));
- s = re_compile_pattern ("x", 1, ®ex);
- if (s)
- exit (1);
-
- /* The version of regex.c in e.g. GNU libc-2.2.93 didn't
- work with a negative RANGE argument. */
- if (re_search (®ex, "wxy", 3, 2, -2, ®s) != 1)
- exit (1);
-
- exit (0);
- }
- ],
- jm_cv_func_working_re_compile_pattern=yes,
- jm_cv_func_working_re_compile_pattern=no,
- dnl When crosscompiling, assume it's broken.
- jm_cv_func_working_re_compile_pattern=no))
- if test $jm_cv_func_working_re_compile_pattern = yes; then
+ [gl_cv_func_working_re_compile_pattern],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [AC_INCLUDES_DEFAULT
+ #include <regex.h>],
+ [[static struct re_pattern_buffer regex;
+ const char *s;
+ struct re_registers regs;
+ re_set_syntax (RE_SYNTAX_POSIX_EGREP);
+ memset (®ex, 0, sizeof (regex));
+ s = re_compile_pattern ("a[:@:>@:]b\n", 9, ®ex);
+ /* This should fail with _Invalid character class name_ error. */
+ if (!s)
+ exit (1);
+
+ /* This should succeed, but does not for e.g. glibc-2.1.3. */
+ memset (®ex, 0, sizeof (regex));
+ s = re_compile_pattern ("{1", 2, ®ex);
+
+ if (s)
+ exit (1);
+
+ /* The following example is derived from a problem report
+ against gawk from Jorge Stolfi <address@hidden>. */
+ memset (®ex, 0, sizeof (regex));
+ s = re_compile_pattern ("[an\371]*n", 7, ®ex);
+ if (s)
+ exit (1);
+
+ /* This should match, but does not for e.g. glibc-2.2.1. */
+ if (re_match (®ex, "an", 2, 0, ®s) != 2)
+ exit (1);
+
+ memset (®ex, 0, sizeof (regex));
+ s = re_compile_pattern ("x", 1, ®ex);
+ if (s)
+ exit (1);
+
+ /* The version of regex.c in e.g. GNU libc-2.2.93 did not
+ work with a negative RANGE argument. */
+ if (re_search (®ex, "wxy", 3, 2, -2, ®s) != 1)
+ exit (1);
+
+ /* The version of regex.c in older versions of gnulib
+ * ignored RE_ICASE. Detect that problem too. */
+ memset (®ex, 0, sizeof (regex));
+ re_set_syntax(RE_SYNTAX_EMACS|RE_ICASE);
+ s = re_compile_pattern ("x", 1, ®ex);
+ if (s)
+ exit (1);
+
+ if (re_search (®ex, "WXY", 3, 0, 3, ®s) < 0)
+ exit (1);
+
+ /* REG_STARTEND was added to glibc on 2004-01-15.
+ Reject older versions. */
+ if (! REG_STARTEND)
+ exit (1);
+
+ exit (0);]])],
+ [gl_cv_func_working_re_compile_pattern=yes],
+ [gl_cv_func_working_re_compile_pattern=no],
+ dnl When crosscompiling, assume it is broken.
+ [gl_cv_func_working_re_compile_pattern=no])])
+ if test $gl_cv_func_working_re_compile_pattern = yes; then
ac_use_included_regex=no
fi
test -n "$1" || AC_MSG_ERROR([missing argument])
- m4_syscmd([test -f $1])
+ m4_syscmd([test -f '$1'])
ifelse(m4_sysval, 0,
[
- AC_ARG_WITH(included-regex,
- [ --without-included-regex don't compile regex; this is the default on
- systems with version 2 of the GNU C library
- (use with caution on other system)],
- jm_with_regex=$withval,
- jm_with_regex=$ac_use_included_regex)
- if test "$jm_with_regex" = yes; then
- AC_LIBOBJ(regex)
+ AC_ARG_WITH([included-regex],
+ [ --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)],
+ [gl_with_regex=$withval],
+ [gl_with_regex=$ac_use_included_regex])
+ if test "X$gl_with_regex" = Xyes; then
+ AC_LIBOBJ([regex])
gl_PREREQ_REGEX
fi
],
@@ -107,20 +122,11 @@
]
)
-# Prerequisites of lib/regex.c.
+# Prerequisites of lib/regex.c and lib/regex_internal.c.
AC_DEFUN([gl_PREREQ_REGEX],
[
- dnl FIXME: Maybe provide a btowc replacement someday: Solaris 2.5.1 lacks it.
- dnl FIXME: Check for wctype and iswctype, and and add -lw if necessary
- dnl to get them.
-
- dnl Persuade glibc <string.h> to declare mempcpy().
- AC_REQUIRE([AC_GNU_SOURCE])
-
AC_REQUIRE([gl_C_RESTRICT])
- AC_REQUIRE([AC_FUNC_ALLOCA])
- AC_REQUIRE([AC_HEADER_STDC])
- AC_CHECK_HEADERS_ONCE(wchar.h wctype.h)
- AC_CHECK_FUNCS_ONCE(isascii mempcpy)
- AC_CHECK_FUNCS(btowc)
+ AC_REQUIRE([AM_LANGINFO_CODESET])
+ AC_CHECK_HEADERS_ONCE([locale.h wchar.h wctype.h])
+ AC_CHECK_FUNCS_ONCE([isblank mbrtowc mempcpy wcrtomb wcscoll])
])
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Derek Robert Price <=