CMake: Fix FindMiniupnpc for ubuntu 14.04

Ubuntu 14.04 has miniupnpc 1.6.3
REGEX was failing because the string was empty, causing cmake to
error and not generate a Makefile.

This allows systems with older versions of miniupnpc to fall back
to the statically linked version in externals.
This commit is contained in:
Scott Mansell 2015-11-02 18:00:06 +13:00
parent bd20dd3962
commit 4fa3ddcbf6

View File

@ -6,7 +6,9 @@ find_library(MINIUPNPC_LIBRARY miniupnpc)
if(MINIUPNPC_INCLUDE_DIR)
file(STRINGS "${MINIUPNPC_INCLUDE_DIR}/miniupnpc.h" MINIUPNPC_API_VERSION_STR REGEX "^#define[\t ]+MINIUPNPC_API_VERSION[\t ]+[0-9]+")
string(REGEX REPLACE "^#define[\t ]+MINIUPNPC_API_VERSION[\t ]+([0-9]+)" "\\1" MINIUPNPC_API_VERSION ${MINIUPNPC_API_VERSION_STR})
if(MINIUPNPC_API_VERSION_STR)
string(REGEX REPLACE "^#define[\t ]+MINIUPNPC_API_VERSION[\t ]+([0-9]+)" "\\1" MINIUPNPC_API_VERSION ${MINIUPNPC_API_VERSION_STR})
endif()
endif()
include(FindPackageHandleStandardArgs)