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Support building on e2k (Elbrus) architecture

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Signed-off-by: makise-homura <akemi_homura@kurisa.ch>
This commit is contained in:
makise-homura 2020-08-18 21:59:46 +03:00
parent 98944cd756
commit ac2fd6524a
2 changed files with 19 additions and 1 deletions
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15
CMakeLists.txt
View file

@ -152,6 +152,8 @@ endfunction(link_to_source)
string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER_ID}") string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER_ID}")
include(CheckCCompilerFlag)
if(CMAKE_COMPILER_IS_GNU) if(CMAKE_COMPILER_IS_GNU)
# some warnings we want are not available with old GCC versions # some warnings we want are not available with old GCC versions
# note: starting with CMake 2.8 we could use CMAKE_C_COMPILER_VERSION # note: starting with CMake 2.8 we could use CMAKE_C_COMPILER_VERSION
@ -168,7 +170,18 @@ if(CMAKE_COMPILER_IS_GNU)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
endif() endif()
if (GCC_VERSION VERSION_GREATER 5.0) if (GCC_VERSION VERSION_GREATER 5.0)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wformat-signedness") CHECK_C_COMPILER_FLAG("-Wformat-signedness" C_COMPILER_SUPPORTS_WFORMAT_SIGNEDNESS)
if(C_COMPILER_SUPPORTS_WFORMAT_SIGNEDNESS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wformat-signedness")
endif()
endif()
CHECK_C_COMPILER_FLAG("-Wno-signed-one-bit-field" C_COMPILER_SUPPORTS_WSIGNED_ONE_BIT_FIELD)
if(C_COMPILER_SUPPORTS_WSIGNED_ONE_BIT_FIELD)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-signed-one-bit-field")
endif()
CHECK_C_COMPILER_FLAG("-Wno-sign-compare" C_COMPILER_SUPPORTS_WSIGN_COMPARE)
if(C_COMPILER_SUPPORTS_WSIGN_COMPARE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-sign-compare")
endif() endif()
set(CMAKE_C_FLAGS_RELEASE "-O2") set(CMAKE_C_FLAGS_RELEASE "-O2")
set(CMAKE_C_FLAGS_DEBUG "-O0 -g3") set(CMAKE_C_FLAGS_DEBUG "-O0 -g3")

5
ChangeLog.d/e2k-support.txt Normal file
View file

@ -0,0 +1,5 @@
Features
* Support building on e2k (Elbrus) architecture: correctly enable
-Wformat-signedness, and pass -Wno-signed-one-bit-field and
-Wno-sign-compare to get rid of excess warnings. Contributed by
makise-homura (Igor Molchanov) <akemi_homura@kurisa.ch>.