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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_path_lib_pcre.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PATH_LIB_PCRE [(A/NA)]
#
# DESCRIPTION
#
# check for pcre lib and set PCRE_LIBS and PCRE_CFLAGS accordingly.
#
# also provide --with-pcre option that may point to the $prefix of the
# pcre installation - the macro will check $pcre/include and $pcre/lib to
# contain the necessary files.
#
# the usual two ACTION-IF-FOUND / ACTION-IF-NOT-FOUND are supported and
# they can take advantage of the LIBS/CFLAGS additions.
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 9
AC_DEFUN([AX_PATH_LIB_PCRE],[dnl
AC_MSG_CHECKING([lib pcre])
AC_ARG_WITH(pcre,
[ --with-pcre[[=prefix]] compile xmlpcre part (via libpcre check)],,
with_pcre="yes")
if test ".$with_pcre" = ".no" ; then
AC_MSG_RESULT([disabled])
m4_ifval($2,$2)
else
AC_MSG_RESULT([(testing)])
AC_CHECK_LIB(pcre, pcre_study)
if test "$ac_cv_lib_pcre_pcre_study" = "yes" ; then
PCRE_LIBS="-lpcre"
AC_MSG_CHECKING([lib pcre])
AC_MSG_RESULT([$PCRE_LIBS])
m4_ifval($1,$1)
else
OLDLDFLAGS="$LDFLAGS" ; LDFLAGS="$LDFLAGS -L$with_pcre/lib"
OLDCPPFLAGS="$CPPFLAGS" ; CPPFLAGS="$CPPFLAGS -I$with_pcre/include"
AC_CHECK_LIB(pcre, pcre_compile)
CPPFLAGS="$OLDCPPFLAGS"
LDFLAGS="$OLDLDFLAGS"
if test "$ac_cv_lib_pcre_pcre_compile" = "yes" ; then
AC_MSG_RESULT(.setting PCRE_LIBS -L$with_pcre/lib -lpcre)
PCRE_LIBS="-L$with_pcre/lib -lpcre"
test -d "$with_pcre/include" && PCRE_CFLAGS="-I$with_pcre/include"
AC_MSG_CHECKING([lib pcre])
AC_MSG_RESULT([$PCRE_LIBS])
m4_ifval($1,$1)
else
AC_MSG_CHECKING([lib pcre])
AC_MSG_RESULT([no, (WARNING)])
m4_ifval($2,$2)
fi
fi
fi
AC_SUBST([PCRE_LIBS])
AC_SUBST([PCRE_CFLAGS])
])
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