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cmake: gcc: allow build with GCC < 4.4

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Prior to 4.4, -Wuninitialized could only be used with -O.
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Orgad Shaneh 2020-08-30 09:28:35 +03:00 • committed by Andy Green
parent 1d05f429dc
commit 0938607af8
1 changed files with 14 additions and 10 deletions
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24
CMakeLists.txt
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@ -692,17 +692,21 @@ if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR COMPILER_IS_CLANG)
set(CMAKE_C_FLAGS "-fanalyzer ${CMAKE_C_FLAGS}" )
endif()
# always warn all and generate debug info
if (UNIX AND NOT LWS_PLAT_FREERTOS)
set(CMAKE_C_FLAGS "-g -Wall -Wsign-compare -Wstrict-aliasing -Wuninitialized ${VISIBILITY_FLAG} -Wundef ${GCOV_FLAGS} ${CMAKE_C_FLAGS} ${ASAN_FLAGS}" )
else()
set(CMAKE_C_FLAGS "-g -Wall -Wsign-compare -Wuninitialized ${VISIBILITY_FLAG} ${GCOV_FLAGS} ${CMAKE_C_FLAGS}" )
endif()
if ("${DISABLE_WERROR}" STREQUAL "OFF")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
endif()
endif ()
if (CMAKE_COMPILER_IS_CLANG OR CMAKE_C_COMPILER_VERSION VERSION_GREATER 4.3)
set(CMAKE_C_FLAGS "-Wuninitialized ${CMAKE_C_FLAGS}")
endif()
# always warn all and generate debug info
if (UNIX AND NOT LWS_PLAT_FREERTOS)
set(CMAKE_C_FLAGS "-g -Wall -Wsign-compare -Wstrict-aliasing ${VISIBILITY_FLAG} -Wundef ${GCOV_FLAGS} ${CMAKE_C_FLAGS} ${ASAN_FLAGS}" )
else()
set(CMAKE_C_FLAGS "-g -Wall -Wsign-compare ${VISIBILITY_FLAG} ${GCOV_FLAGS} ${CMAKE_C_FLAGS}" )
endif()
if ("${DISABLE_WERROR}" STREQUAL "OFF")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
endif()
endif ()
if ((CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX) AND NOT LWS_WITHOUT_TESTAPPS)
if (UNIX AND LWS_HAVE_PTHREAD_H)