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dnl http://autoconf-archive.cryp.to/ax_path_lib_pcre.html
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], $PCRE_LIBS)
AC_SUBST([PCRE_CFLAGS], $PCRE_CFLAGS)
])
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