diff options
Diffstat (limited to 'Modules/FindZLIB.cmake')
| -rw-r--r-- | Modules/FindZLIB.cmake | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/Modules/FindZLIB.cmake b/Modules/FindZLIB.cmake index f50116f..be5c775 100644 --- a/Modules/FindZLIB.cmake +++ b/Modules/FindZLIB.cmake @@ -92,8 +92,16 @@ endforeach() # Allow ZLIB_LIBRARY to be set manually, as the location of the zlib library if(NOT ZLIB_LIBRARY) - set(_zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES ${CMAKE_FIND_LIBRARY_PREFIXES}) - set(_zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES}) + if(DEFINED CMAKE_FIND_LIBRARY_PREFIXES) + set(_zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES "${CMAKE_FIND_LIBRARY_PREFIXES}") + else() + set(_zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES) + endif() + if(DEFINED CMAKE_FIND_LIBRARY_SUFFIXES) + set(_zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES "${CMAKE_FIND_LIBRARY_SUFFIXES}") + else() + set(_zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES) + endif() # Prefix/suffix of the win32/Makefile.gcc build if(WIN32) list(APPEND CMAKE_FIND_LIBRARY_PREFIXES "" "lib") @@ -114,8 +122,16 @@ if(NOT ZLIB_LIBRARY) endforeach() # Restore the original find library ordering - set(CMAKE_FIND_LIBRARY_SUFFIXES ${_zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}) - set(CMAKE_FIND_LIBRARY_PREFIXES ${_zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES}) + if(DEFINED _zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES) + set(CMAKE_FIND_LIBRARY_SUFFIXES "${_zlib_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}") + else() + set(CMAKE_FIND_LIBRARY_SUFFIXES) + endif() + if(DEFINED _zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES) + set(CMAKE_FIND_LIBRARY_PREFIXES "${_zlib_ORIG_CMAKE_FIND_LIBRARY_PREFIXES}") + else() + set(CMAKE_FIND_LIBRARY_PREFIXES) + endif() include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake) select_library_configurations(ZLIB) |