I want to use libpng.dylib in my project, and there is a libpng(version1.6)
installed by brew: $ ll /Users/quanzhao/git-space/homebrew/lib/libpng.dylib $
ll /Users/quanzhao/git-space/homebrew/include/png.hthere is another
libpng(version 1.4) in Mono.framework on Mac: $ ll
/Library/Frameworks/Mono.framework/Libraries/libpng.dylib $ ll
/Library/Frameworks/Mono.framework/Headers/png.h
I use the same configuration for find_path and find_library, but cmake found
v1.6-libpng and v1.4-png.h, so my project ran to error.Here is my testing cmake
code:find_path(MYPNG_INCLUDE_DIR NAMES "png.h" HINTS
${USER_FIND_DIRS} PATH_SUFFIXES "include" "include/png"
NO_CMAKE_ENVIRONMENT_PATH NO_CMAKE_PATH
NO_SYSTEM_ENVIRONMENT_PATH)message("!!!!!!!! MYPNG_INCLUDE_DIR:
${MYPNG_INCLUDE_DIR}")find_library(MYPNG_LIBRARY NAMES png HINTS
${USER_FIND_DIRS} PATH_SUFFIXES "lib" "local/lib"
NO_CMAKE_ENVIRONMENT_PATH NO_CMAKE_PATH
NO_SYSTEM_ENVIRONMENT_PATH)message("!!!!!!!! MYPNG_LIBRARY: ${MYPNG_LIBRARY}")
The result and values of some variables are shown as
following:----------------------------------------------------------------USER_CMAKE_ARGS:
-G 'Unix Makefiles' -DUSER_FIND_DIRS='/Users/quanzhao/git-space/homebrew'
-DCMAKE_TARGET_BUILD_TOOL:STRING='make' -DUSER_TARGET='x86_64-macosx-clang'
-DCMAKE_BUILD_TYPE:STRING='Debug' -DCMAKE_C_COMPILER='/usr/bin/gcc'
-DCMAKE_CXX_COMPILER='/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++'
-DUSER_MODULE_SOURCE_DIR='/Users/quanzhao/git-space/tigerknows-mapcore/externals'
-DUSER_MODULE_BINARY_DIR='/Users/quanzhao/git-space/tigerknows-mapcore/x86_64-macosx-clang-debug.make.build/modules'
-DCMAKE_INSTALL_PREFIX='/Users/quanzhao/git-space/tigerknows-mapcore/x86_64-macosx-clang-debug.make.build/installs'----------------------------------------------------------------skip(NO_DEFAULT_PATH):
1. skip(NO_CMAKE_PATH): 1. test(CMAKE_LIBRARY_ARCHITECTURE): 1. each
<prefix>/include/<arch> in CMAKE_PREFIX_PATH: 1. each <prefix>/include in
CMAKE_PREFIX_PATH: 1. CMAKE_INCLUDE_PATH: 1. CMAKE_FRAMEWORK_PATH: 2.
skip(NO_CMAKE_ENVIRONMENT_PATH): 2. test(CMAKE_LIBRARY_ARCHITECTURE): 2.
each <prefix>/include/<arch> in CMAKE_PREFIX_PATH: 2. each <prefix>/include
in CMAKE_PREFIX_PATH: 2. CMAKE_INCLUDE_PATH: 2. CMAKE_FRAMEWORK_PATH: 3.
HINTS4. skip(NO_SYSTEM_ENVIRONMENT_PATH): 4. PATH:
/Users/quanzhao/git-space/depot_tools:/Applications/CMake.app/Contents/bin:/Users/quanzhao/packages/apache-maven-3.3.9/bin:/Applications/Cocos/tools/ant/bin:/Users/quanzhao/git-space/homebrew/bin:/Users/quanzhao/packages/android-ndk-r10e:/Users/quanzhao/packages/adt-bundle-mac-x86_64-20140702/sdk:/Applications/Cocos/frameworks:/Users/quanzhao/packages/cocos2d-x-3/templates:/Applications/Cocos/frameworks/cocos2d-x-3.9/tools/cocos2d-console/bin:/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home:/usr/local/bin:/usr/bin:/bin:/user/sbin:/sbin4.
INCLUDE: 5. skip(NO_CMAKE_SYSTEM_PATH): 5.
test(CMAKE_LIBRARY_ARCHITECTURE): 5. each <prefix>/include/<arch> in
CMAKE_SYSTEM_PREFIX_PATH:
/usr/local;/usr;/;/Applications/CMake.app/Contents;/Users/quanzhao/git-space/tigerknows-mapcore/x86_64-macosx-clang-debug.make.build/installs;/sw;/opt/local5.
each <prefix>/include in CMAKE_SYSTEM_PREFIX_PATH:
/usr/local;/usr;/;/Applications/CMake.app/Contents;/Users/quanzhao/git-space/tigerknows-mapcore/x86_64-macosx-clang-debug.make.build/installs;/sw;/opt/local5.
CMAKE_SYSTEM_INCLUDE_PATH:
/usr/include/w32api;/usr/X11R6/include;/usr/include/X11;/usr/pkg/include;/opt/csw/include;/opt/include;/usr/openwin/include5.
CMAKE_SYSTEM_FRAMEWORK_PATH:
~/Library/Frameworks;/Library/Frameworks;/Network/Library/Frameworks;/System/Library/Frameworks6.
PATHSCMAKE_FIND_FRAMEWORK: FIRSTCMAKE_FIND_APPBUNDLE:
FIRSTCMAKE_FIND_ROOT_PATH: CMAKE_STAGING_PREFIX: CMAKE_SYSROOT:
CMAKE_FIND_PATH_MODE_INCLUDE:
----------------------------------------------------------------skip(NO_DEFAULT_PATH):
1. skip(NO_CMAKE_PATH): 1. test(CMAKE_LIBRARY_ARCHITECTURE): 1. each
<prefix>/lib/<arch> in CMAKE_PREFIX_PATH: 1. each <prefix>/lib in
CMAKE_PREFIX_PATH: 1. CMAKE_LIBRARY_PATH: 1. CMAKE_FRAMEWORK_PATH: 2.
skip(NO_CMAKE_ENVIRONMENT_PATH): 2. test(CMAKE_LIBRARY_ARCHITECTURE): 2.
each <prefix>/lib/<arch> in CMAKE_PREFIX_PATH: 2. each <prefix>/lib in
CMAKE_PREFIX_PATH: 2. CMAKE_LIBRARY_PATH: 2. CMAKE_FRAMEWORK_PATH: 3.
HINTS4. skip(NO_SYSTEM_ENVIRONMENT_PATH): 4. PATH:
/Users/quanzhao/git-space/depot_tools:/Applications/CMake.app/Contents/bin:/Users/quanzhao/packages/apache-maven-3.3.9/bin:/Applications/Cocos/tools/ant/bin:/Users/quanzhao/git-space/homebrew/bin:/Users/quanzhao/packages/android-ndk-r10e:/Users/quanzhao/packages/adt-bundle-mac-x86_64-20140702/sdk:/Applications/Cocos/frameworks:/Users/quanzhao/packages/cocos2d-x-3/templates:/Applications/Cocos/frameworks/cocos2d-x-3.9/tools/cocos2d-console/bin:/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home:/usr/local/bin:/usr/bin:/bin:/user/sbin:/sbin4.
LIB: 5. skip(NO_CMAKE_SYSTEM_PATH): 5. test(CMAKE_LIBRARY_ARCHITECTURE):
5. each <prefix>/lib/<arch> in CMAKE_SYSTEM_PREFIX_PATH:
/usr/local;/usr;/;/Applications/CMake.app/Contents;/Users/quanzhao/git-space/tigerknows-mapcore/x86_64-macosx-clang-debug.make.build/installs;/sw;/opt/local5.
each <prefix>/lib in CMAKE_SYSTEM_PREFIX_PATH:
/usr/local;/usr;/;/Applications/CMake.app/Contents;/Users/quanzhao/git-space/tigerknows-mapcore/x86_64-macosx-clang-debug.make.build/installs;/sw;/opt/local5.
CMAKE_SYSTEM_LIBRARY_PATH:
/usr/lib/w32api;/usr/X11R6/lib;/usr/lib/X11;/usr/pkg/lib;/opt/csw/lib;/opt/lib;/usr/openwin/lib5.
CMAKE_SYSTEM_FRAMEWORK_PATH:
~/Library/Frameworks;/Library/Frameworks;/Network/Library/Frameworks;/System/Library/Frameworks6.
PATHSCMAKE_FIND_FRAMEWORK: FIRSTCMAKE_FIND_APPBUNDLE:
FIRSTCMAKE_FIND_ROOT_PATH: CMAKE_STAGING_PREFIX: CMAKE_SYSROOT:
CMAKE_FIND_PATH_MODE_LIBRARY:
----------------------------------------------------------------!!!!!!!!
MYPNG_INCLUDE_DIR: /Library/Frameworks/Mono.framework/Headers!!!!!!!!
MYPNG_LIBRARY: /Users/quanzhao/git-space/homebrew/lib/libpng.dylib
I am confused on this... Only I set -DCMAKE_FIND_FRAMEWORK='LAST' can get the
right result: libpng.dylib and png.h in v1.6. Does CMake get any other default
actions for searching headers and libraries?
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