diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 7767896e..d3aa6270 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -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) |