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authorMarc Chevrier <marc.chevrier@gmail.com>2020-10-18 14:11:27 (GMT)
committerMarc Chevrier <marc.chevrier@gmail.com>2020-11-29 14:25:42 (GMT)
commit2c71d051facad13b0a42a57066be2489d5fff6ea (patch)
treed07f850f8abc74d9df34ad885681c08d36c14472 /Modules/Compiler/Clang-OBJC.cmake
parentafd0f6785dc1220a07743d31699fcd9097cca46a (diff)
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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
Diffstat (limited to 'Modules/Compiler/Clang-OBJC.cmake')
-rw-r--r--Modules/Compiler/Clang-OBJC.cmake9
1 files changed, 9 insertions, 0 deletions
diff --git a/Modules/Compiler/Clang-OBJC.cmake b/Modules/Compiler/Clang-OBJC.cmake
index c61c497..19179e3 100644
--- a/Modules/Compiler/Clang-OBJC.cmake
+++ b/Modules/Compiler/Clang-OBJC.cmake
@@ -1,6 +1,15 @@
include(Compiler/Clang)
__compiler_clang(OBJC)
+if((NOT DEFINED CMAKE_DEPENDS_USE_COMPILER OR CMAKE_DEPENDS_USE_COMPILER)
+ AND CMAKE_GENERATOR MATCHES "Makefiles|WMake"
+ AND CMAKE_DEPFILE_FLAGS_OBJC)
+ # dependencies are computed by the compiler itself
+ set(CMAKE_OBJC_DEPFILE_FORMAT gcc)
+ set(CMAKE_OBJC_DEPENDS_USE_COMPILER TRUE)
+endif()
+
+
if(NOT CMAKE_OBJC_COMPILER_VERSION VERSION_LESS 3.4)
set(CMAKE_OBJC90_STANDARD_COMPILE_OPTION "-std=c90")
set(CMAKE_OBJC90_EXTENSION_COMPILE_OPTION "-std=gnu90")