-#serial 12
+#serial 13
dnl Initially derived from code in GNU grep.
dnl Mostly written by Jim Meyering.
+AC_DEFUN([gl_REGEX],
+[
+ jm_INCLUDED_REGEX([lib/regex.c])
+])
+
dnl Usage: jm_INCLUDED_REGEX([lib/regex.c])
dnl
AC_DEFUN([jm_INCLUDED_REGEX],
jm_with_regex=$ac_use_included_regex)
if test "$jm_with_regex" = yes; then
AC_LIBOBJ(regex)
+ jm_PREREQ_REGEX
fi
],
)
]
)
+
+# Prerequisites of lib/regex.c.
+AC_DEFUN([jm_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([AC_FUNC_ALLOCA])
+ AC_REQUIRE([AC_HEADER_STDC])
+ AC_CHECK_HEADERS_ONCE(limits.h string.h wchar.h wctype.h)
+ AC_CHECK_FUNCS_ONCE(isascii mempcpy)
+ AC_CHECK_FUNCS(btowc)
+])