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enabled precompiled headers for CMake (if supported) and disabled the prologue so includes will not be treated as system one and emit warnings (#2986)

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Oliver Stöneberg 2020-12-27 09:17:57 +01:00 committed by GitHub
parent 0a1012a273
commit 30fbded406
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1 changed files with 7 additions and 5 deletions
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12
cmake/options.cmake
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@ -43,12 +43,14 @@ option(HAVE_RULES "Usage of rules (needs PCRE library and headers)"
option(USE_Z3 "Usage of z3 library" OFF)
option(USE_BUNDLED_TINYXML2 "Usage of bundled tinyxml2 library" ON)
# precompiled headers do not emit compiler warnings so we cannot use them right now
#if (CMAKE_VERSION VERSION_EQUAL "3.16" OR CMAKE_VERSION VERSION_GREATER "3.16")
# set(CMAKE_DISABLE_PRECOMPILE_HEADERS Off CACHE BOOL "Disable precompiled headers")
#else()
if (CMAKE_VERSION VERSION_EQUAL "3.16" OR CMAKE_VERSION VERSION_GREATER "3.16")
set(CMAKE_DISABLE_PRECOMPILE_HEADERS Off CACHE BOOL "Disable precompiled headers")
# need to disable the prologue or it will be treated like a system header and not emit any warnings
# see https://gitlab.kitware.com/cmake/cmake/-/issues/21219
set(CMAKE_PCH_PROLOGUE "")
else()
set(CMAKE_DISABLE_PRECOMPILE_HEADERS On CACHE BOOL "Disable precompiled headers")
#endif()
endif()
set(CMAKE_INCLUDE_DIRS_CONFIGCMAKE ${CMAKE_INSTALL_PREFIX}/include CACHE PATH "Output directory for headers")
set(CMAKE_LIB_DIRS_CONFIGCMAKE ${CMAKE_INSTALL_PREFIX}/lib CACHE PATH "Output directory for libraries")