diff options
| author | Brad King <brad.king@kitware.com> | 2017-06-09 13:30:37 -0400 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2017-06-09 14:19:52 -0400 |
| commit | 5f93bf787d0ccccf1aa6dc3f6f1d0df3855a55f6 (patch) | |
| tree | 49bfbfb63dac03872a5d8666ed5e8ff1900606eb | |
| parent | d025faf436c86ee9cc033fbb324a9bc2c18757fa (diff) | |
| download | cmake-5f93bf787d0ccccf1aa6dc3f6f1d0df3855a55f6.tar.gz | |
Android: Detect API version of standalone toolchain with unified headers
A standalone toolchain with unified headers keeps the `__ANDROID_API__`
macro in the `bin/clang` launcher instead of in `api-level.h`.
Issue: #16954
| -rw-r--r-- | Modules/Platform/Android-Determine.cmake | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/Modules/Platform/Android-Determine.cmake b/Modules/Platform/Android-Determine.cmake index 6d370ab270..076be85d2d 100644 --- a/Modules/Platform/Android-Determine.cmake +++ b/Modules/Platform/Android-Determine.cmake @@ -100,11 +100,34 @@ endif() set(_ANDROID_STANDALONE_TOOLCHAIN_API "") if(CMAKE_ANDROID_STANDALONE_TOOLCHAIN) - set(_ANDROID_API_LEVEL_H_REGEX "^[\t ]*#[\t ]*define[\t ]+__ANDROID_API__[\t ]+([0-9]+)") - file(STRINGS "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" - _ANDROID_API_LEVEL_H_CONTENT REGEX "${_ANDROID_API_LEVEL_H_REGEX}") - if(_ANDROID_API_LEVEL_H_CONTENT MATCHES "${_ANDROID_API_LEVEL_H_REGEX}") - set(_ANDROID_STANDALONE_TOOLCHAIN_API "${CMAKE_MATCH_1}") + # Try to read the API level from the toolchain launcher. + if(EXISTS "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/bin/clang") + set(_ANDROID_API_LEVEL_CLANG_REGEX "__ANDROID_API__=([0-9]+)") + file(STRINGS "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/bin/clang" _ANDROID_STANDALONE_TOOLCHAIN_BIN_CLANG + REGEX "${_ANDROID_API_LEVEL_CLANG_REGEX}" LIMIT_COUNT 1 LIMIT_INPUT 65536) + if(_ANDROID_STANDALONE_TOOLCHAIN_BIN_CLANG MATCHES "${_ANDROID_API_LEVEL_CLANG_REGEX}") + set(_ANDROID_STANDALONE_TOOLCHAIN_API "${CMAKE_MATCH_1}") + endif() + unset(_ANDROID_STANDALONE_TOOLCHAIN_BIN_CLANG) + unset(_ANDROID_API_LEVEL_CLANG_REGEX) + endif() + if(NOT _ANDROID_STANDALONE_TOOLCHAIN_API) + # The compiler launcher does not know __ANDROID_API__. Assume this + # is not unified headers and look for it in the api-level.h header. + set(_ANDROID_API_LEVEL_H_REGEX "^[\t ]*#[\t ]*define[\t ]+__ANDROID_API__[\t ]+([0-9]+)") + file(STRINGS "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" + _ANDROID_API_LEVEL_H_CONTENT REGEX "${_ANDROID_API_LEVEL_H_REGEX}") + if(_ANDROID_API_LEVEL_H_CONTENT MATCHES "${_ANDROID_API_LEVEL_H_REGEX}") + set(_ANDROID_STANDALONE_TOOLCHAIN_API "${CMAKE_MATCH_1}") + endif() + endif() + if(NOT _ANDROID_STANDALONE_TOOLCHAIN_API) + message(WARNING + "Android: Did not detect API level from\n" + " ${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/bin/clang\n" + "or\n" + " ${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h\n" + ) endif() endif() |