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cmake: many improvements about build options and platform checks

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* Add option BUILD_STRICT_C90
* Rename options WITH_* by BUILD_WITH_*
* Detect if platform provides builtin byte swap functions
This commit is contained in:
Hugues Delorme 2014-01-23 17:24:50 +01:00
parent 5720614cdc
commit 0539a111fd
2 changed files with 48 additions and 13 deletions
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47
CMakeLists.txt
View File

@ -1,26 +1,49 @@
cmake_minimum_required(VERSION 2.6)
include(CheckIncludeFiles)
include(CheckFunctionExists)
include(CheckCSourceCompiles)
project(fougdatax)
# Options
option(BUILD_SHARED_LIBS "Build shared libraries (DLL)" ON)
option(WITH_LIBSTL "Build the libSTL module" ON)
option(WITH_QT_SUPPORT "Build with Qt support" OFF)
option(WITH_OCC_SUPPORT "Build with OpenCascade support" OFF)
option(BUILD_SHARED_LIBS "Build shared libraries (DLL)" ON)
option(BUILD_STRICT_C90 "Build with strict conformance to language standard C90" ON)
option(BUILD_WITH_LIBSTL "Build the libSTL module" ON)
option(BUILD_WITH_QT_SUPPORT "Build with Qt support" OFF)
option(BUILD_WITH_OCC_SUPPORT "Build with OpenCascade support" OFF)
# Add core source files
file(GLOB ALL_SRC_FILES src/*)
# Have <stdint.h> ?
check_include_files(stdint.h FOUG_HAVE_STDINT_H)
# Have strtof() ?
if(NOT BUILD_STRICT_C90)
check_function_exists(strtof FOUG_HAVE_STRTOF_FUNC)
endif()
# Have builtin byte swap functions ?
if(CMAKE_COMPILER_IS_GNUCC)
check_c_source_compiles("int main() { return (int)__builtin_bswap32(0x11223344); }"
FOUG_HAVE_GCC_BUILTIN_BSWAP_FUNC)
elseif(MSVC)
check_c_source_compiles("#include <stdlib.h>
int main() { return (int)_byteswap_ulong(0x11223344); }"
FOUG_HAVE_MSVC_BUILTIN_BSWAP_FUNC)
endif()
configure_file(src/config.h.cmake config.h @ONLY)
include_directories(${CMAKE_BINARY_DIR}) # For generated "config.h"
# Specific flags for gcc
if(CMAKE_COMPILER_IS_GNUCC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ansi -pedantic-errors -fstrict-aliasing")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wextra -Wstrict-aliasing -Wcast-align -Wlogical-op -Wfloat-equal")
if (BUILD_STRICT_C90)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ansi")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic-errors -fstrict-aliasing")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wstrict-aliasing -Wcast-align -Wlogical-op -Wfloat-equal")
endif()
# Specific flags for Visual C++
@ -40,7 +63,7 @@ file(GLOB C_GLOBAL_HEADERS src/*.h)
install(FILES ${C_GLOBAL_HEADERS} DESTINATION include/datax)
# Module libSTL
if(WITH_LIBSTL)
if(BUILD_WITH_LIBSTL)
add_definitions(-DFOUG_DATAX_LIBSTL_DLL
-DFOUG_DATAX_LIBSTL_MAKE_DLL)
@ -53,7 +76,7 @@ endif()
# Common for support modules
if(WITH_QT_SUPPORT OR WITH_OCC_SUPPORT)
if(BUILD_WITH_QT_SUPPORT OR BUILD_WITH_OCC_SUPPORT)
if(BUILD_SHARED_LIBS)
add_definitions(-DFOUG_LIBSUPPORT_DLL
-DFOUG_LIBSUPPORT_MAKE_DLL)
@ -63,7 +86,7 @@ if(WITH_QT_SUPPORT OR WITH_OCC_SUPPORT)
endif()
# Qt support
if(WITH_QT_SUPPORT)
if(BUILD_WITH_QT_SUPPORT)
find_package(Qt5Core REQUIRED)
file(GLOB ALL_QT_SUPPORT_SRC_FILES src/support/qt_*)
@ -72,7 +95,7 @@ if(WITH_QT_SUPPORT)
endif()
# OpenCASCADE support
if(WITH_OCC_SUPPORT)
if(BUILD_WITH_OCC_SUPPORT)
set(CASCADE_ROOT "" CACHE PATH "Root directory of OpenCascade")
file(GLOB ALL_OCC_SUPPORT_SRC_FILES src/support/occ_*)
@ -117,12 +140,12 @@ install(TARGETS fougdatax
# Qt support link
if(WITH_QT_SUPPORT)
if(BUILD_WITH_QT_SUPPORT)
qt5_use_modules(fougdatax Core)
endif()
# OpenCascade support ling
if(WITH_OCC_SUPPORT)
if(BUILD_WITH_OCC_SUPPORT)
target_link_libraries(fougdatax TKSTL TKernel TKMath)
endif()

14
src/config.h.cmake
View File

@ -5,6 +5,18 @@
#ifndef FOUG_HAVE_STDINT_H
#cmakedefine FOUG_HAVE_STDINT_H
#endif /* FOUG_HAVE_STDINT_H */
#endif
#ifndef FOUG_HAVE_STRTOF_FUNC
#cmakedefine FOUG_HAVE_STRTOF_FUNC
#endif
#ifndef FOUG_HAVE_GCC_BUILTIN_BSWAP_FUNC
#cmakedefine FOUG_HAVE_GCC_BUILTIN_BSWAP_FUNC
#endif
#ifndef FOUG_HAVE_MSVC_BUILTIN_BSWAP_FUNC
#cmakedefine FOUG_HAVE_MSVC_BUILTIN_BSWAP_FUNC
#endif
#endif /* FOUG_CONFIG_H_CMAKE */