Merge pull request #3414 from Pyrohh/cmake-check-wvla

build: Check for -Wvla before use
This commit is contained in:
Justin M. Keyes
2015-10-02 15:26:16 -04:00

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@@ -142,7 +142,7 @@ if(MSVC)
add_definitions(/W3 -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_DEPRECATE)
else()
add_definitions(-Wall -Wextra -pedantic -Wno-unused-parameter
-Wstrict-prototypes -Wvla -std=gnu99)
-Wstrict-prototypes -std=gnu99)
endif()
if(MINGW)
@@ -150,9 +150,14 @@ if(MINGW)
add_definitions(-D__USE_MINGW_ANSI_STDIO)
endif()
# OpenBSD's GCC (4.2.1) doesn't have -Wvla
check_c_compiler_flag(-Wvla HAS_WVLA_FLAG)
if(HAS_WVLA_FLAG)
add_definitions(-Wvla)
endif()
check_c_compiler_flag(-fstack-protector-strong HAS_FSTACK_PROTECTOR_STRONG_FLAG)
check_c_compiler_flag(-fstack-protector HAS_FSTACK_PROTECTOR_FLAG)
if(HAS_FSTACK_PROTECTOR_STRONG_FLAG)
add_definitions(-fstack-protector-strong)
elseif(HAS_FSTACK_PROTECTOR_FLAG)