diff options
Diffstat (limited to 'Modules/FindPNG.cmake')
| -rw-r--r-- | Modules/FindPNG.cmake | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/Modules/FindPNG.cmake b/Modules/FindPNG.cmake index d96d2ccf9..a2577d26b 100644 --- a/Modules/FindPNG.cmake +++ b/Modules/FindPNG.cmake @@ -38,8 +38,42 @@ if(ZLIB_FOUND) /usr/local/include/libpng # OpenBSD ) - set(PNG_NAMES ${PNG_NAMES} png libpng png15 libpng15 png15d libpng15d png14 libpng14 png14d libpng14d png12 libpng12 png12d libpng12d) - find_library(PNG_LIBRARY NAMES ${PNG_NAMES} ) + list(APPEND PNG_NAMES png libpng) + unset(PNG_NAMES_DEBUG) + set(_PNG_VERSION_SUFFIXES 17 16 15 14 12) + if (PNG_FIND_VERSION MATCHES "^[0-9]+\\.[0-9]+(\\..*)?$") + string(REGEX REPLACE + "^([0-9]+)\\.([0-9]+).*" "\\1\\2" + _PNG_VERSION_SUFFIX_MIN "${PNG_FIND_VERSION}") + if (PNG_FIND_VERSION_EXACT) + set(_PNG_VERSION_SUFFIXES ${_PNG_VERSION_SUFFIX_MIN}) + else () + string(REGEX REPLACE + "${_PNG_VERSION_SUFFIX_MIN}.*" "${_PNG_VERSION_SUFFIX_MIN}" + _PNG_VERSION_SUFFIXES "${_PNG_VERSION_SUFFIXES}") + endif () + unset(_PNG_VERSION_SUFFIX_MIN) + endif () + foreach(v IN LISTS _PNG_VERSION_SUFFIXES) + list(APPEND PNG_NAMES png${v} libpng${v}) + list(APPEND PNG_NAMES_DEBUG png${v}d libpng${v}d) + endforeach() + unset(_PNG_VERSION_SUFFIXES) + # For compatiblity with versions prior to this multi-config search, honor + # any PNG_LIBRARY that is already specified and skip the search. + if(NOT PNG_LIBRARY) + find_library(PNG_LIBRARY_RELEASE NAMES ${PNG_NAMES}) + find_library(PNG_LIBRARY_DEBUG NAMES ${PNG_NAMES_DEBUG}) + include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake) + select_library_configurations(PNG) + mark_as_advanced(PNG_LIBRARY_RELEASE PNG_LIBRARY_DEBUG) + endif() + unset(PNG_NAMES) + unset(PNG_NAMES_DEBUG) + + # Set by select_library_configurations(), but we want the one from + # find_package_handle_standard_args() below. + unset(PNG_FOUND) if (PNG_LIBRARY AND PNG_PNG_INCLUDE_DIR) # png.h includes zlib.h. Sigh. |