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# pcre.m4 - check for libpcre support
# serial 1
# Copyright (C) 2010-2012 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_PCRE],
[
AC_ARG_ENABLE([perl-regexp],
AC_HELP_STRING([--disable-perl-regexp],
[disable perl-regexp (pcre) support]),
[case $enableval in
yes|no) test_pcre=$enableval;;
*) AC_MSG_ERROR([invalid value $enableval for --disable-perl-regexp]);;
esac],
[test_pcre=yes])
LIB_PCRE=
AC_SUBST([LIB_PCRE])
use_pcre=no
if test x"$test_pcre" = x"yes"; then
AC_CHECK_HEADERS([pcre.h])
AC_CHECK_HEADERS([pcre/pcre.h])
if test $ac_cv_header_pcre_h = yes \
|| test $ac_cv_header_pcre_pcre_h = yes; then
pcre_saved_LIBS=$LIBS
AC_SEARCH_LIBS([pcre_compile], [pcre],
[test "$ac_cv_search_pcre_compile" = "none required" ||
LIB_PCRE=$ac_cv_search_pcre_compile])
AC_CHECK_FUNCS([pcre_compile])
LIBS=$pcre_saved_LIBS
if test $ac_cv_func_pcre_compile = yes; then
use_pcre=yes
fi
fi
if test $use_pcre = no; then
AC_MSG_WARN([libpcre development library was not found or not usable.])
AC_MSG_WARN([AC_PACKAGE_NAME will be built without pcre support.])
fi
fi
AC_DEFINE_UNQUOTED([HAVE_LIBPCRE], [`test $use_pcre != yes; echo $?`],
[Define to 1 if you have the `pcre' library (-lpcre).])
])
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