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Make sure re_compile_pattern accepts patterns like `{1'.

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This commit is contained in:
Jim Meyering
2000-03-03 12:23:47 +00:00
parent c1fcde2307
commit 1a371e5119
1 changed files with 10 additions and 4 deletions
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14
m4/regex.m4
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@@ -1,4 +1,4 @@
#serial 6
#serial 7
dnl Initially derived from code in GNU grep.
dnl Mostly written by Jim Meyering.
@@ -16,8 +16,8 @@ AC_DEFUN(jm_INCLUDED_REGEX,
# However, if the system regex support is good enough that it passes the
# 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 failing regular expression is from `Spencer ere test #75'
# in grep-2.3.
# 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(
@@ -33,7 +33,13 @@ AC_DEFUN(jm_INCLUDED_REGEX,
three right ones below. Otherwise autoconf-2.14 chokes. */
s = re_compile_pattern ("a[[:]:]]b\n", 9, &regex);
/* This should fail with _Invalid character class name_ error. */
exit (s ? 0 : 1);
if (!s)
exit (1);
/* This should succeed, but doesn't for e.g. glibc-2.1.3. */
s = re_compile_pattern ("{1", 2, &regex);
exit (s ? 1 : 0);
}
],
jm_cv_func_working_re_compile_pattern=yes,