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authorScott Mansell <phiren@gmail.com>2015-11-02 18:00:06 +1300
committerScott Mansell <phiren@gmail.com>2015-11-02 18:00:06 +1300
commit4fa3ddcbf65c625ff496ccdd0fea9652d21b625c (patch)
tree7c12bb7360b3807b9bcce74cafbdf9d966919191
parentbd20dd39620ca2903ea3ccb71af3a14cfe3c7db8 (diff)
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.
-rw-r--r--CMakeTests/FindMiniupnpc.cmake4
1 files changed, 3 insertions, 1 deletions
diff --git a/CMakeTests/FindMiniupnpc.cmake b/CMakeTests/FindMiniupnpc.cmake
index dd01e3ef72..79b00c0621 100644
--- a/CMakeTests/FindMiniupnpc.cmake
+++ b/CMakeTests/FindMiniupnpc.cmake
@@ -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)