CMake/Modules/Compiler/Clang-OBJCXX.cmake
Marc Chevrier 2c71d051fa Makefiles Generators: use compiler for dependencies generation
Each source compilation generates a dependencies file. These dependencies
files are consolidated in one file per target. This consolidation is done
as part of command 'cmake -E cmake_depends` launched before evaluation of
makefile dependency graph.

The consolidation uses the same approach as `CMake` dependencies management.

Fixes: #21321
2020-11-29 15:25:42 +01:00

12 lines
395 B
CMake

include(Compiler/Clang)
__compiler_clang(OBJCXX)
__compiler_clang_cxx_standards(OBJCXX)
if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER)
AND CMAKE_GENERATOR MATCHES "Makefiles|WMake"
AND CMAKE_DEPFILE_FLAGS_OBJCXX)
# dependencies are computed by the compiler itself
set(CMAKE_OBJCXX_DEPFILE_FORMAT gcc)
set(CMAKE_OBJCXX_DEPENDS_USE_COMPILER TRUE)
endif()