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CMake: Small organizing of the build
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,44 @@ | ||
| # =================Library ABI version======================= | ||
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| # Calculate a libtool-like version number | ||
| math(EXPR BINARY_AGE "${SDLMixerX_VERSION_MINOR} * 100 + ${SDLMixerX_VERSION_PATCH}") | ||
| if(MINOR_VERSION MATCHES "[02468]$") | ||
| # Stable branch, 2.6.1 -> libSDL2_mixer_ext-2.0.so.0.600.1 | ||
| set(INTERFACE_AGE ${SDLMixerX_VERSION_PATCH}) | ||
| else() | ||
| # Development branch, 2.5.1 -> libSDL2_mixer_ext-2.0.so.0.501.0 | ||
| set(INTERFACE_AGE 0) | ||
| endif() | ||
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| # Increment this if there is an incompatible change - but if that happens, | ||
| # we should rename the library from SDL2 to SDL3, at which point this would | ||
| # reset to 0 anyway. | ||
| set(LT_MAJOR "0") | ||
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| math(EXPR LT_AGE "${BINARY_AGE} - ${INTERFACE_AGE}") | ||
| math(EXPR LT_CURRENT "${LT_MAJOR} + ${LT_AGE}") | ||
| set(LT_REVISION "${INTERFACE_AGE}") | ||
| # For historical reasons, the library name redundantly includes the major | ||
| # version twice: libSDL2_mixer-2.0.so.0. | ||
| # TODO: in SDL 3, set the OUTPUT_NAME to plain SDL3_mixer, which will simplify | ||
| # it to libSDL3_mixer.so.0 | ||
| set(LT_RELEASE "2.0") | ||
| set(LT_VERSION "${LT_MAJOR}.${LT_AGE}.${LT_REVISION}") | ||
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| # The following should match the versions in the Xcode project file. | ||
| # Each version is 1 higher than you might expect, for compatibility | ||
| # with libtool: macOS ABI versioning is 1-based, unlike other platforms | ||
| # which are normally 0-based. | ||
| math(EXPR DYLIB_CURRENT_VERSION_MAJOR "${LT_MAJOR} + ${LT_AGE} + 1") | ||
| math(EXPR DYLIB_CURRENT_VERSION_MINOR "${LT_REVISION}") | ||
| math(EXPR DYLIB_COMPAT_VERSION_MAJOR "${LT_MAJOR} + 1") | ||
| set(DYLIB_CURRENT_VERSION "${DYLIB_CURRENT_VERSION_MAJOR}.${DYLIB_CURRENT_VERSION_MINOR}.0") | ||
| # For historical reasons this is 3.0.0 rather than the expected 1.0.0 | ||
| set(DYLIB_COMPATIBILITY_VERSION "3.0.0") | ||
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| # For the static assertions in mixer.c | ||
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DSDL_BUILD_MAJOR_VERSION=${SDLMixerX_VERSION_MAJOR}") | ||
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DSDL_BUILD_MINOR_VERSION=${SDLMixerX_VERSION_MINOR}") | ||
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DSDL_BUILD_MICRO_VERSION=${SDLMixerX_VERSION_PATCH}") | ||
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| # =========================================================== |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,51 @@ | ||
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| macro(mixer_add_warning_flag WARNINGFLAG WARNING_VAR) | ||
| check_c_compiler_flag("${WARNINGFLAG}" HAVE_W_C_${WARNING_VAR}) | ||
| if(HAVE_W_C_${WARNING_VAR}) | ||
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WARNINGFLAG}") | ||
| endif() | ||
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| check_cxx_compiler_flag("${WARNINGFLAG}" HAVE_W_CXX_${WARNING_VAR}) | ||
| if(HAVE_W_CXX_${WARNING_VAR}) | ||
| set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WARNINGFLAG}") | ||
| endif() | ||
| endmacro() | ||
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| macro(mixer_disable_warning_flag WARNINGFLAG WARNING_VAR) | ||
| check_c_compiler_flag("-W${WARNINGFLAG}" HAVE_W_C_${WARNING_VAR}) | ||
| if(HAVE_W_C_${WARNING_VAR}) | ||
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-${WARNINGFLAG}") | ||
| endif() | ||
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| check_cxx_compiler_flag("-W${WARNINGFLAG}" HAVE_W_CXX_${WARNING_VAR}) | ||
| if(HAVE_W_CXX_${WARNING_VAR}) | ||
| set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-${WARNINGFLAG}") | ||
| endif() | ||
| endmacro() | ||
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| # Add compiler argument(s) | ||
| macro(mixer_add_opt_flag OPTFLAG OPT_VAR) | ||
| check_c_compiler_flag("${OPTFLAG}" HAVE_M_C_${OPT_VAR}) | ||
| if(HAVE_M_C_${OPT_VAR}) | ||
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OPTFLAG}") | ||
| endif() | ||
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| check_cxx_compiler_flag("${OPTFLAG}" HAVE_M_CXX_${OPT_VAR}) | ||
| if(HAVE_M_CXX_${OPT_VAR}) | ||
| set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OPTFLAG}") | ||
| endif() | ||
| endmacro() | ||
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| macro(mixer_add_c_compiler_flag COMPILERFLAG COMPILERFLAG_VAR) | ||
| check_c_compiler_flag("${COMPILERFLAG}" HAVE_C_${COMPILERFLAG_VAR}) | ||
| if(HAVE_C_${COMPILERFLAG_VAR}) | ||
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${COMPILERFLAG}") | ||
| endif() | ||
| endmacro() | ||
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| macro(mixer_add_cxx_compiler_flag COMPILERFLAG COMPILERFLAG_VAR) | ||
| check_cxx_compiler_flag("${COMPILERFLAG}" HAVE_CXX_${COMPILERFLAG_VAR}) | ||
| if(HAVE_CXX_${COMPILERFLAG_VAR}) | ||
| set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COMPILERFLAG}") | ||
| endif() | ||
| endmacro() |
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