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More fixes for compiler feature detection

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This commit is contained in:
Dmitry Marakasov 2015-09-17 16:44:59 +03:00
parent e3feb2f7a4
commit bee32f54da
5 changed files with 22 additions and 31 deletions
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8
CMakeLists.txt
View File

@ -80,13 +80,13 @@ INCLUDE_DIRECTORIES(SYSTEM ${SDL2_ALL_INCLUDE_DIRS})
INCLUDE(CheckCompile)
CHECK_COMPILE(
SDL2PP_WITH_EXPERIMENTAL_OPTIONAL
${PROJECT_SOURCE_DIR}/cmake/std_experimental_optional_test.cc
"Checking for experimental/optional header"
"#include <experimental/optional>\nint main() { std::experimental::optional<int> o; return !o; }"
"experimental/optional header"
)
CHECK_COMPILE(
SDL2PP_WITH_DEPRECATED
${PROJECT_SOURCE_DIR}/cmake/attribute_deprecated_test.cc
"Checking for [[deprecated]] attribute"
"[[deprecated]]\nstatic void f() {} int main() { return 0; }"
"[[deprecated]] attribute"
)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SDL2PP_WARNINGS}")

5
cmake/AppendCXXFlagIfSupported.cmake
View File

@ -2,11 +2,12 @@ INCLUDE(CheckCXXCompilerFlag)
MACRO(APPEND_CXX_FLAG_IF_SUPPORTED FLAG VARIABLE)
UNSET(HAS_FLAG CACHE)
SET(SAVED_CMAKE_REQUIRED_QUIET ${CMAKE_REQUIRED_QUIET})
SET(CMAKE_REQUIRED_QUIET YES)
CHECK_CXX_COMPILER_FLAG(${FLAG} HAS_FLAG)
SET(CMAKE_REQUIRED_QUIET NO)
SET(CMAKE_REQUIRED_QUIET ${SAVED_CMAKE_REQUIRED_QUIET})
IF(HAS_FLAG)
SET(VARIABLE "${VARIABLE} ${FLAG}")
SET(${VARIABLE} "${${VARIABLE}} ${FLAG}")
MESSAGE(STATUS "Checking for ${FLAG}: yes")
ELSE(HAS_FLAG)
MESSAGE(STATUS "Checking for ${FLAG}: no")

25
cmake/CheckCompile.cmake
View File

@ -1,11 +1,16 @@
MACRO(CHECK_COMPILE RESULT_VAR SOURCE_FILE DESCRIPTION)
SET(SAVED_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SDL2PP_WERROR_FLAG}")
TRY_COMPILE(RESULT_VAR ${CMAKE_BINARY_DIR} ${SOURCE_FILE})
IF(RESULT_VAR)
MESSAGE(STATUS "${DESCRIPTION}: yes")
ELSE(RESULT_VAR)
MESSAGE(STATUS "${DESCRIPTION}: no")
ENDIF(RESULT_VAR)
SET(CMAKE_CXX_FLAGS "${SAVED_CXX_FLAGS}")
INCLUDE(CheckCXXSourceCompiles)
MACRO(CHECK_COMPILE RESULT_VAR CODE DESCRIPTION)
SET(SAVED_CMAKE_REQUIRED_QUIET "${CMAKE_REQUIRED_QUIET}")
SET(SAVED_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
SET(CMAKE_REQUIRED_QUIET YES)
SET(CMAKE_REQUIRED_FLAGS "${SDL2PP_WERROR_FLAG}")
CHECK_CXX_SOURCE_COMPILES("${CODE}" ${RESULT_VAR})
SET(CMAKE_REQUIRED_QUIET "${SAVED_CMAKE_REQUIRED_QUIET}")
SET(CMAKE_REQUIRED_FLAGS "${SAVED_CMAKE_REQUIRED_FLAGS}")
IF(${RESULT_VAR})
MESSAGE(STATUS "Checking for ${DESCRIPTION}: yes")
ELSE(${RESULT_VAR})
MESSAGE(STATUS "Checking for ${DESCRIPTION}: no")
ENDIF(${RESULT_VAR})
ENDMACRO(CHECK_COMPILE)

7
cmake/attribute_deprecated_test.cc
View File

@ -1,7 +0,0 @@
[[deprecated]]
static void f() {
}
int main() {
return 0;
}

8
cmake/std_experimental_optional_test.cc
View File

@ -1,8 +0,0 @@
#include <experimental/optional>
#include <string>
int main() {
std::experimental::optional<std::string> o;
return !o;
}