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| author |  Lubomir I. Ivanov <neolit123@gmail.com> | 2018-04-28 22:28:22 +0300 |
|---|---|---|
| committer | Lubomir I. Ivanov <neolit123@gmail.com> | 2018-04-29 22:47:33 +0300 |
| commit | a0b80ca775e9ad4b840293f959d933e94d120fb8 (patch) | |
| tree | e12d6fcd32bd6f4ddeb61243ed47d91f31d26027 /CMakeLists.txt | |
| parent | 81a812539c95f2e709995d446065803c09e9136a (diff) | |
| download | subsurface-a0b80ca775e9ad4b840293f959d933e94d120fb8.tar.gz | |
cmake: add the GCC_OPTIMIZATION_FLAGS variable
Instead of always adding -O2 for CMAKE_C_FLAGS_DEBUG and
CMAKE_CXX_FLAGS_DEBUG allow the user to pass a custom value
via GCC_OPTIMIZATION_FLAGS.
Passing -DGCC_OPTIMIZATION_FLAGS:STRING=-O0 would disable
all optimizations.
Suggested-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index f3b6c991d..d540f1187 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -105,9 +105,11 @@ endif() set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall") set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall") -# optimize -O2 even for debug builds -set (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O2") -set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O2") +# by detault optimize with -O2 even for debug builds +set (GCC_OPTIMIZATION_FLAGS "-O2" CACHE STRING "GCC optimization flags") +message (STATUS "GCC optimization flags: " ${GCC_OPTIMIZATION_FLAGS}) +set (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${GCC_OPTIMIZATION_FLAGS}") +set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${GCC_OPTIMIZATION_FLAGS}") # pkgconfig for required libraries find_package(PkgConfig) |