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88 lines
3.3 KiB
CMake
88 lines
3.3 KiB
CMake
# define system dependent compiler flags
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include(CheckCCompilerFlag)
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include(CheckCCompilerFlagSSP)
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#
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# Define GNUCC compiler flags
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#
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if (${CMAKE_C_COMPILER_ID} MATCHES "(GNU|Clang)")
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# add -Wconversion ?
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# cannot be pedantic with sqlite3 directly linked
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if (NOT CSYNC_STATIC_COMPILE_DIR)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -pedantic -pedantic-errors")
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endif()
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wshadow -Wmissing-prototypes")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wunused -Wfloat-equal -Wpointer-arith -Wwrite-strings -Wformat-security")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-format-attribute")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-format-attribute -D_GNU_SOURCE")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__STDC_FORMAT_MACROS=1")
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set(CSYNC_STRICT OFF CACHE BOOL "Strict error checking, enabled -Werror and friends")
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if (CSYNC_STRICT)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
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endif(CSYNC_STRICT)
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# with -fPIC
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check_c_compiler_flag("-fPIC" WITH_FPIC)
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if (WITH_FPIC AND NOT WIN32)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
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endif (WITH_FPIC AND NOT WIN32)
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check_c_compiler_flag_ssp("-fstack-protector" WITH_STACK_PROTECTOR)
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if (WITH_STACK_PROTECTOR AND NOT WIN32)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector")
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endif (WITH_STACK_PROTECTOR AND NOT WIN32)
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if (CMAKE_BUILD_TYPE)
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string(TOLOWER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_LOWER)
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if (CMAKE_BUILD_TYPE_LOWER MATCHES "(release|relwithdebinfo|minsizerel)")
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check_c_compiler_flag("-Wp,-D_FORTIFY_SOURCE=2" WITH_FORTIFY_SOURCE)
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if (WITH_FORTIFY_SOURCE)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wp,-D_FORTIFY_SOURCE=2")
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endif (WITH_FORTIFY_SOURCE)
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endif()
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endif()
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endif (${CMAKE_C_COMPILER_ID} MATCHES "(GNU|Clang)")
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if (UNIX AND NOT WIN32)
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#
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# Check for large filesystem support
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#
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if (CMAKE_SIZEOF_VOID_P MATCHES "8")
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# with large file support
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execute_process(
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COMMAND
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getconf LFS64_CFLAGS
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OUTPUT_VARIABLE
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_lfs_CFLAGS
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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else (CMAKE_SIZEOF_VOID_P MATCHES "8")
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# with large file support
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execute_process(
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COMMAND
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getconf LFS_CFLAGS
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OUTPUT_VARIABLE
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_lfs_CFLAGS
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ERROR_QUIET
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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endif (CMAKE_SIZEOF_VOID_P MATCHES "8")
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if (_lfs_CFLAGS)
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string(REGEX REPLACE "[\r\n]" " " "${_lfs_CFLAGS}" "${${_lfs_CFLAGS}}")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_lfs_CFLAGS}")
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endif (_lfs_CFLAGS)
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else(UNIX AND NOT WIN32)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_FILE_OFFSET_BITS=64")
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endif (UNIX AND NOT WIN32)
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if (MSVC)
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# Use secure functions by defaualt and suppress warnings about
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#"deprecated" functions
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES=1")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES_COUNT=1")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_NONSTDC_NO_WARNINGS=1 /D _CRT_SECURE_NO_WARNINGS=1")
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endif (MSVC)
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