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-rw-r--r--CMakeLists.txt15
1 files changed, 15 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e70afd6c8..50ff5adbf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,6 +43,7 @@ set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
include(Utilities)
include(Macros)
include(CMakeDependentOption)
+include(CheckCCompilerFlag)
project( CURL C )
@@ -73,6 +74,7 @@ include_directories(${PROJECT_BINARY_DIR}/include/curl)
include_directories( ${CURL_SOURCE_DIR}/include )
option(CURL_WERROR "Turn compiler warnings into errors" OFF)
+option(PICKY_COMPILER "Enable picky compiler options" ON)
option(BUILD_CURL_EXE "Set to ON to build curl executable." ON)
option(CURL_STATICLIB "Set to ON to build libcurl with static linking." OFF)
option(ENABLE_ARES "Set to ON to enable c-ares support" OFF)
@@ -88,6 +90,19 @@ CMAKE_DEPENDENT_OPTION(ENABLE_THREADED_RESOLVER "Set to ON to enable threaded DN
option(ENABLE_DEBUG "Set to ON to enable curl debug features" OFF)
option(ENABLE_CURLDEBUG "Set to ON to build with TrackMemory feature enabled" OFF)
+if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
+ if (PICKY_COMPILER)
+ foreach (_CCOPT -pedantic -Wall -W -Wpointer-arith -Wwrite-strings -Wunused -Wshadow -Winline -Wnested-externs -Wmissing-declarations -Wmissing-prototypes -Wno-long-long -Wfloat-equal -Wno-multichar -Wsign-compare -Wundef -Wno-format-nonliteral -Wendif-labels -Wstrict-prototypes -Wdeclaration-after-statement -Wstrict-aliasing=3 -Wcast-align -Wtype-limits -Wold-style-declaration -Wmissing-parameter-type -Wempty-body -Wclobbered -Wignored-qualifiers -Wconversion -Wno-sign-conversion -Wvla -Wdouble-promotion -Wno-system-headers)
+ # surprisingly, CHECK_C_COMPILER_FLAG needs a new variable to store each new
+ # test result in.
+ CHECK_C_COMPILER_FLAG(${_CCOPT} OPT${_CCOPT})
+ if(OPT${_CCOPT})
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_CCOPT}")
+ endif()
+ endforeach()
+ endif(PICKY_COMPILER)
+endif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
+
if (ENABLE_DEBUG)
# DEBUGBUILD will be defined only for Debug builds
if(NOT CMAKE_VERSION VERSION_LESS 3.0)