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#serial 3
dnl Derived from code in GNU grep.
AC_DEFUN(jm_WITH_REGEX,
[
AC_REQUIRE([AM_GLIBC])
dnl Even packages that don't use regex.c can use this macro.
dnl Of course, for them it doesn't do anything.
syscmd([test -f lib/regex.c])
ifelse(sysval, 0,
[
# By default, don't use the included regex.c on systems with glibc 2
test "$ac_cv_glibc" = yes && default=no || default=yes
AC_ARG_WITH(included-regex,
[ --without-included-regex don't compile regex; this is the default on
systems with version 2 of the GNU C library
(use with caution on other system)],
jm_with_regex=$withval,
jm_with_regex=$default)
if test "$jm_with_regex" = yes; then
LIBOBJS="$LIBOBJS regex.o"
fi
],
)
]
)
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