diff options
Diffstat (limited to 'third_party/aom/build/cmake/aom_configure.cmake')
| -rw-r--r-- | third_party/aom/build/cmake/aom_configure.cmake | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/third_party/aom/build/cmake/aom_configure.cmake b/third_party/aom/build/cmake/aom_configure.cmake index 917e7cac5d..304d90d1e1 100644 --- a/third_party/aom/build/cmake/aom_configure.cmake +++ b/third_party/aom/build/cmake/aom_configure.cmake @@ -320,6 +320,10 @@ else() # minimum supported C++ version. If Clang is using this Standard Library # implementation, it cannot target C++11. require_cxx_flag_nomsvc("-std=c++14" YES) + elseif(CYGWIN AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU") + # The GNU C++ compiler in Cygwin needs the -std=gnu++11 flag to make the + # POSIX function declarations visible in the Standard C Library headers. + require_cxx_flag_nomsvc("-std=gnu++11" YES) else() require_cxx_flag_nomsvc("-std=c++11" YES) endif() @@ -393,6 +397,13 @@ else() endif() add_compiler_flag_if_supported("-D_LARGEFILE_SOURCE") add_compiler_flag_if_supported("-D_FILE_OFFSET_BITS=64") + + # Do not allow implicit vector type conversions on Clang builds (this is + # already the default on GCC builds). + if(CMAKE_C_COMPILER_ID MATCHES "Clang") + # Clang 8.0.1 (in Cygwin) doesn't support -flax-vector-conversions=none. + add_compiler_flag_if_supported("-flax-vector-conversions=none") + endif() endif() # Prior to r23, or with ANDROID_USE_LEGACY_TOOLCHAIN_FILE set, |