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Build: Make CMake build fail if tuklib_cpucores or tuklib_physmem fails.

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Lasse Collin 2020-02-27 20:58:52 +02:00
parent 7c8b904527
commit 265daa873c
1 changed files with 18 additions and 0 deletions
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18
CMakeLists.txt
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@ -350,6 +350,24 @@ target_compile_definitions(liblzma PRIVATE TUKLIB_SYMBOL_PREFIX=lzma_)
tuklib_cpucores(liblzma)
tuklib_physmem(liblzma)
# While liblzma can be built without tuklib_cpucores or tuklib_physmem
# modules, the liblzma API functions lzma_cputhreads() and lzma_physmem()
# will then be useless (which isn't too bad but still unfortunate). Since
# I expect the CMake-based builds to be only used on systems that are
# supported by these tuklib modules, problems with these tuklib modules
# are considered a hard error for now. This hopefully helps to catch bugs
# in the CMake versions of the tuklib checks.
if(NOT TUKLIB_CPUCORES_FOUND OR NOT TUKLIB_PHYSMEM_FOUND)
# Use SEND_ERROR instead of FATAL_ERROR. If someone reports a bug,
# seeing the results of the remaining checks can be useful too.
message(SEND_ERROR
"tuklib_cpucores() or tuklib_physmem() failed. "
"Unless you really are building for a system where these "
"modules are not supported (unlikely), this is a bug in the "
"included cmake/tuklib_*.cmake files that should be fixed. "
"To build anyway, edit this CMakeLists.txt to ignore this error.")
endif()
# immintrin.h:
include(CheckIncludeFile)
check_include_file(immintrin.h HAVE_IMMINTRIN_H)