cmake: better functions to check headers, functions and types.
functions that handle all the required settings in one place.
This commit is contained in:
Gustavo Sverzut Barbieri
parent
ea83a197be
commit
e8f2bdb079
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@ -1,81 +1,160 @@
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unset(HEADER_FILE_CONTENT CACHE)
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macro(HEADER_CHECK header var)
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CHECK_INCLUDE_FILE(${header} ${var})
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if (${${var}})
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set(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#define ${var} 1\n" CACHE INTERNAL "")
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else()
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set(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#undef ${var}\n" CACHE INTERNAL "")
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endif()
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endmacro()
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# HEADER_CHECK(header [NAME variable] [INCLUDE_FILES extra1.h .. extraN.h])
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#
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# Check if the header file exists, in such case define variable
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# in configuration file.
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#
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# Variable defaults to HAVE_${HEADER}, where HEADER is the uppercase
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# representation of the first parameter. It can be overridden using
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# NAME keyword.
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#
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# To include extra files, then use INCLUDE_FILES keyword.
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function(HEADER_CHECK header)
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string(TOUPPER HAVE_${header} var)
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string(REGEX REPLACE "[^a-zA-Z0-9]" "_" var "${var}")
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string(REGEX REPLACE "_{2,}" "_" var "${var}")
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macro(FUNC_CHECK func header var)
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CHECK_SYMBOL_EXISTS(${func} ${header} ${var})
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if (${${var}} )
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set(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#define ${var} 1\n" CACHE INTERNAL "")
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else()
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set(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#undef ${var}\n" CACHE INTERNAL "")
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endif()
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endmacro()
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cmake_parse_arguments(PARAMS "" "NAME" "INCLUDE_FILES" ${ARGN})
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macro(TYPE_CHECK func header var)
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set(CMAKE_EXTRA_INCLUDE_FILES ${header})
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CHECK_TYPE_SIZE(${func} ${var})
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unset(CMAKE_EXTRA_INCLUDE_FILES)
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if (${${var}} GREATER 0)
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set(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#define ${var} 1\n" CACHE INTERNAL "")
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else()
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set(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#undef ${var}\n" CACHE INTERNAL "")
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endif()
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endmacro()
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if(PARAMS_NAME)
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set(var ${PARAMS_NAME})
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endif()
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set(CMAKE_EXTRA_INCLUDE_FILES "${PARAMS_INCLUDE_FILES}")
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CHECK_INCLUDE_FILE(${header} ${var})
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if(${${var}})
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SET_GLOBAL(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#define ${var} 1\n")
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else()
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SET_GLOBAL(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#undef ${var}\n")
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endif()
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endfunction()
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# FUNC_CHECK(func [NAME variable]
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# [INCLUDE_FILES header1.h .. headerN.h]
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# [LIBRARIES lib1 ... libN]
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# [DEFINITIONS -DA=1 .. -DN=123]
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# [FLAGS -cmdlineparam1 .. -cmdlineparamN]
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# [CXX])
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#
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# Check if the function exists, in such case define variable in
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# configuration file.
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#
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# Variable defaults to HAVE_${FUNC}, where FUNC is the uppercase
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# representation of the first parameter. It can be overridden using
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# NAME keyword.
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#
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# To define include files use INCLUDE_FILES keyword.
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#
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# To use C++ compiler, use CXX keyword
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function(FUNC_CHECK func)
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string(TOUPPER HAVE_${func} var)
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string(REGEX REPLACE "_{2,}" "_" var "${var}")
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cmake_parse_arguments(PARAMS "CXX" "NAME" "INCLUDE_FILES;LIBRARIES;DEFINITIONS;FLAGS" ${ARGN})
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set(CMAKE_REQUIRED_LIBRARIES "${PARAMS_LIBRARIES}")
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set(CMAKE_REQUIRED_DEFINITIONS "${PARAMS_DEFINITIONS}")
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set(CMAKE_REQUIRED_FLAGS "${PARAMS_FLAGS}")
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if(PARAMS_CXX)
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check_cxx_symbol_exists(${func} "${PARAMS_INCLUDE_FILES}" ${var})
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else()
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check_symbol_exists(${func} "${PARAMS_INCLUDE_FILES}" ${var})
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endif()
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if(${${var}} )
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SET_GLOBAL(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#define ${var} 1\n")
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else()
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SET_GLOBAL(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#undef ${var}\n")
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endif()
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endfunction()
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# TYPE_CHECK(type [NAME variable]
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# [INCLUDE_FILES file1.h ... fileN.h]
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# [LIBRARIES lib1 ... libN]
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# [DEFINITIONS -DA=1 .. -DN=123]
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# [FLAGS -cmdlineparam1 .. -cmdlineparamN]
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# [CXX])
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#
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# Check if the type exists and its size, in such case define variable
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# in configuration file.
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#
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# Variable defaults to HAVE_${TYPE}, where TYPE is the uppercase
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# representation of the first parameter. It can be overridden using
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# NAME keyword.
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#
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# To define include files use INCLUDE_FILES keyword.
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#
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# To use C++ compiler, use CXX keyword
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function(TYPE_CHECK type)
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string(TOUPPER HAVE_${type} var)
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string(REGEX REPLACE "_{2,}" "_" var "${var}")
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cmake_parse_arguments(PARAMS "CXX" "NAME" "INCLUDE_FILES;LIBRARIES;DEFINITIONS;FLAGS" ${ARGN})
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set(CMAKE_REQUIRED_LIBRARIES "${PARAMS_LIBRARIES}")
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set(CMAKE_REQUIRED_DEFINITIONS "${PARAMS_DEFINITIONS}")
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set(CMAKE_REQUIRED_FLAGS "${PARAMS_FLAGS}")
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set(CMAKE_EXTRA_INCLUDE_FILES "${PARAMS_INCLUDE_FILES}")
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if(PARAMS_CXX)
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set(lang CXX)
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else()
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set(lang C)
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endif()
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CHECK_TYPE_SIZE(${type} ${var} LANGUAGE ${lang})
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if(HAVE_${var})
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SET_GLOBAL(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#define ${var} 1\n")
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else()
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SET_GLOBAL(HEADER_FILE_CONTENT "${HEADER_FILE_CONTENT}#undef ${var}\n")
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endif()
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endfunction()
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FUNC_CHECK(geteuid unistd.h HAVE_GETEUID)
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FUNC_CHECK(getuid unistd.h HAVE_GETUID)
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FUNC_CHECK(getpagesize unistd.h HAVE_GETPAGESIZE)
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FUNC_CHECK(strlcpy bsd/string.h HAVE_STRLCPY)
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FUNC_CHECK(mmap sys/mman.h HAVE_MMAP)
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FUNC_CHECK(fchmod sys/stat.h HAVE_FCHMOD)
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FUNC_CHECK(clock_gettime time.h HAVE_CLOCK_GETTIME)
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FUNC_CHECK(fstatat sys/stat.h HAVE_ATFILE_SOURCE)
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FUNC_CHECK(dirfd "dirent.h;sys/types.h" HAVE_DIRFD)
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FUNC_CHECK(fpathconf "unistd.h" HAVE_FPATHCONF)
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FUNC_CHECK(fpathconf "unistd.h" HAVE_FPATHCONF)
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FUNC_CHECK(listxattr "sys/types.h;sys/xattr.h" HAVE_LISTXATTR)
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FUNC_CHECK(setxattr "sys/types.h;sys/xattr.h" HAVE_SETXATTR)
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FUNC_CHECK(getxattr "sys/types.h;sys/xattr.h" HAVE_GETXATTR)
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FUNC_CHECK(geteuid INCLUDE_FILES unistd.h)
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FUNC_CHECK(getuid INCLUDE_FILES unistd.h)
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FUNC_CHECK(getpagesize INCLUDE_FILES unistd.h)
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FUNC_CHECK(strlcpy INCLUDE_FILES bsd/string.h)
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FUNC_CHECK(mmap INCLUDE_FILES sys/mman.h)
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FUNC_CHECK(fchmod INCLUDE_FILES sys/stat.h)
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FUNC_CHECK(clock_gettime INCLUDE_FILES time.h)
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FUNC_CHECK(fstatat NAME HAVE_ATFILE_SOURCE INCLUDE_FILES sys/stat.h)
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FUNC_CHECK(dirfd INCLUDE_FILES dirent.h sys/types.h)
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FUNC_CHECK(fpathconf INCLUDE_FILES unistd.h)
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FUNC_CHECK(listxattr INCLUDE_FILES sys/types.h sys/xattr.h)
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FUNC_CHECK(setxattr INCLUDE_FILES sys/types.h sys/xattr.h)
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FUNC_CHECK(getxattr INCLUDE_FILES sys/types.h;sys/xattr.h)
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FUNC_CHECK(dlopen INCLUDE_FILES dlfcn.h LIBRARIES dl)
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FUNC_CHECK(mtrace INCLUDE_FILES mcheck.h)
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FUNC_CHECK(strerror_r INCLUDE_FILES string.h)
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FUNC_CHECK(shm_open INCLUDE_FILES sys/mman.h sys/stat.h fcntl.h LIBRARIES rt)
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FUNC_CHECK(sched_getcpu INCLUDE_FILES sched.h DEFINITIONS "-D_GNU_SOURCE=1")
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FUNC_CHECK(splice INCLUDE_FILES fcntl.h DEFINITIONS "-D_GNU_SOURCE=1")
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FUNC_CHECK(fcntl INCLUDE_FILES fcntl.h)
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FUNC_CHECK(dladdr INCLUDE_FILES dlfcn.h LIBRARIES dl DEFINITIONS "-D_GNU_SOURCE=1")
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set(CMAKE_REQUIRED_LIBRARIES "-ldl")
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FUNC_CHECK(dlopen dlfcn.h HAVE_DLOPEN)
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unset(CMAKE_REQUIRED_LIBRARIES)
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TYPE_CHECK(siginfo_t INCLUDE_FILES signal.h)
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FUNC_CHECK(mtrace mcheck.h HAVE_MTRACE)
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FUNC_CHECK(strerror_r string.h HAVE_STRERROR_R)
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set(CMAKE_REQUIRED_LIBRARIES "-lrt")
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FUNC_CHECK(shm_open "sys/mman.h;sys/stat.h;fcntl.h" HAVE_SHM_OPEN)
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set(CMAKE_REQUIRED_DEFINITIONS "-D_GNU_SOURCE=1")
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FUNC_CHECK(sched_getcpu sched.h HAVE_SCHED_GETCPU)
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FUNC_CHECK(splice fcntl.h HAVE_SPLICE)
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FUNC_CHECK(fcntl fcntl.h HAVE_FCNTL)
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set(CMAKE_REQUIRED_LIBRARIES "-ldl")
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FUNC_CHECK(dladdr dlfcn.h HAVE_DLADDR)
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TYPE_CHECK(siginfo_t signal.h HAVE_SIGINFO_T)
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HEADER_CHECK(stdlib.h HAVE_STDLIB_H)
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HEADER_CHECK(sys/mman.h HAVE_SYS_MMAN_H)
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HEADER_CHECK(dirent.h HAVE_DIRENT_H)
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HEADER_CHECK(iconv.h HAVE_ICONV_H)
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HEADER_CHECK(sys/auxv.h HAVE_SYS_AUXV_H)
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HEADER_CHECK(asm/hwcap.h HAVE_ASM_HWCAP_H)
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HEADER_CHECK(mcheck.h HAVE_MCHECK_H)
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HEADER_CHECK(sys/types.h HAVE_SYS_TYPES_H)
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HEADER_CHECK(execinfo.h HAVE_EXECINFO_H)
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HEADER_CHECK(libunwind.h HAVE_UNWIND)
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HEADER_CHECK(mtrace.h HAVE_MTRACE_H)
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HEADER_CHECK(stdlib.h)
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HEADER_CHECK(sys/mman.h)
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HEADER_CHECK(dirent.h)
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HEADER_CHECK(iconv.h)
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HEADER_CHECK(sys/auxv.h)
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HEADER_CHECK(asm/hwcap.h)
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HEADER_CHECK(mcheck.h)
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HEADER_CHECK(sys/types.h)
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HEADER_CHECK(execinfo.h)
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HEADER_CHECK(libunwind.h NAME HAVE_UNWIND)
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# EFL_HEADER_CHECKS_FINALIZE(file)
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#
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# Write the configuration gathered with HEADER_CHECK(), TYPE_CHECK()
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# and FUNC_CHECK() to the given file.
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function(EFL_HEADER_CHECKS_FINALIZE file)
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file(WRITE ${file}.new ${HEADER_FILE_CONTENT})
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if (NOT EXISTS ${file})
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@ -92,4 +171,5 @@ function(EFL_HEADER_CHECKS_FINALIZE file)
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message(STATUS "${file} was updated.")
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endif()
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endif()
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unset(HEADER_FILE_CONTENT CACHE) # allow to reuse with an empty contents
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endfunction()
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