blender
/
blender
136
408
Fork 592
Code Issues 6.3k Pull Requests 776 Projects 19 Wiki Activity

Use compiler check for -fmacro-prefix-map 

Use a more reliable method to check the availability of the flag than
compiler versions. Some compilers have different behaviors for
C and C++.

Reviewed By: campbellbarton, ChrisLend

Differential Revision: https://developer.blender.org/D9446
This commit is contained in:
Ankit Meel 2020-11-04 21:00:29 +05:30
parent abc5e7d596
commit 0802e9cf54
1 changed files with 8 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
CMakeLists.txt
View File

@ -1662,15 +1662,14 @@ endif()
if(WITH_COMPILER_SHORT_FILE_MACRO)
# Use '-fmacro-prefix-map' for Clang and GCC (MSVC doesn't support this).
if((CMAKE_COMPILER_IS_GNUCC AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 8.4) OR
(CMAKE_C_COMPILER_ID STREQUAL "Clang" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10.0) OR
(CMAKE_C_COMPILER_ID STREQUAL "AppleClang" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 12.0)
)
ADD_CHECK_C_COMPILER_FLAG(C_PREFIX_MAP_FLAGS C_MACRO_PREFIX_MAP -fmacro-prefix-map=foo=bar)
ADD_CHECK_CXX_COMPILER_FLAG(CXX_PREFIX_MAP_FLAGS CXX_MACRO_PREFIX_MAP -fmacro-prefix-map=foo=bar)
if(C_MACRO_PREFIX_MAP AND CXX_MACRO_PREFIX_MAP)
if(APPLE)
if(XCODE AND ${XCODE_VERSION} VERSION_LESS 12.0)
# Developers may have say LLVM Clang-10.0.1 toolchain with Xcode-11.
message_first_run(WARNING
# Developers may have say LLVM Clang-10.0.1 toolchain (which supports the flag)
# with Xcode-11 (the Clang of which doesn't support the flag).
message(WARNING
"-fmacro-prefix-map flag is NOT supported by Clang shipped with Xcode-${XCODE_VERSION}."
" Some Xcode functionality in Product menu may not work. Disabling WITH_COMPILER_SHORT_FILE_MACRO."
)
@ -1688,8 +1687,8 @@ if(WITH_COMPILER_SHORT_FILE_MACRO)
unset(_bin_dir)
endif()
else()
message_first_run(WARNING
"-fmacro-prefix-map flag is NOT supported by ${CMAKE_C_COMPILER_ID} version-${CMAKE_C_COMPILER_VERSION}."
message(WARNING
"-fmacro-prefix-map flag is NOT supported by C/C++ compiler."
" Disabling WITH_COMPILER_SHORT_FILE_MACRO."
)
set(WITH_COMPILER_SHORT_FILE_MACRO OFF)