mirror of
https://github.com/wesnoth/wesnoth
synced 2025-04-27 18:55:27 +00:00
ef6eb243e1
Newer versions don't define a symbol directly confusing cmake, fixed by letting the compiler test whether it really doesn't exist. The issue was spotted by Espreon.
94 lines
3.6 KiB
CMake
94 lines
3.6 KiB
CMake
# - Find the native FriBiDI includes and library
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#
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#
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# This module defines
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# FRIBIDI_INCLUDE_DIR, where to find fribidi.h, etc.
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# FRIBIDI_LIBRARIES, the libraries to link against to use FriBiDi.
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# PNG_DEFINITIONS - You should ADD_DEFINITONS(${PNG_DEFINITIONS}) before compiling code that includes png library files.
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# FRIBIDI_FOUND, If false, do not try to use PNG.
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# also defined, but not for general use are
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# FRIBIDI_LIBRARY, where to find the FriBiDi library.
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#
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# If this module finds an old version of fribidi, then this module will run
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# add_definitions(-DOLD_FRIBIDI) so that Wesnoth will compile.
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include(CheckSymbolExists)
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SET(FRIBIDI_FOUND "NO")
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# Set variable in temp var, otherwise FIND_PATH might fail
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# unset isn't present in the required version of cmake.
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FIND_PATH(xFRIBIDI_INCLUDE_DIR fribidi.h
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/usr/local/include/fribidi
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/usr/include/fribidi
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)
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set(FRIBIDI_INCLUDE_DIR ${xFRIBIDI_INCLUDE_DIR})
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SET(FRIBIDI_NAMES ${FRIBIDI_NAMES} fribidi libfribidi)
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FIND_LIBRARY(FRIBIDI_LIBRARY
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NAMES ${FRIBIDI_NAMES}
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PATHS /usr/lib /usr/local/lib
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)
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IF (FRIBIDI_LIBRARY AND FRIBIDI_INCLUDE_DIR)
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SET(CMAKE_REQUIRED_INCLUDES ${FRIBIDI_INCLUDE_DIR})
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SET(CMAKE_REQUIRED_LIBRARIES ${FRIBIDI_LIBRARY})
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CHECK_SYMBOL_EXISTS(fribidi_utf8_to_unicode fribidi.h FOUND_fribidi_utf8_to_unicode)
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CHECK_SYMBOL_EXISTS(fribidi_charset_to_unicode fribidi.h FOUND_fribidi_charset_to_unicode)
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CHECK_SYMBOL_EXISTS(FRIBIDI_CHAR_SET_UTF8 fribidi.h FOUND_FRIBIDI_CHAR_SET_UTF8)
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# FriBiDi provides both fribidi_utf8_to_unicode and fribidi_charset_to_unicode.
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# The difference is that
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# 1. fribidi >= 0.10.5 has FRIBIDI_CHAR_SET_UTF8.
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# 2. fribidi <= 0.10.4 has FRIBIDI_CHARSET_UTF8.
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# Wesnoth has two methods to use FriBiDi.
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# 1. Use fribidi_charset_to_unicode and FRIBIDI_CHAR_SET_UTF8.
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# 2. Define OLD_FRIBIDI and use fribidi_utf8_to_unicode.
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# To compile Wesnoth with fribidi <= 0.10.4, we must define OLD_FRIBIDI.
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# Newer versions of fribidi (not tested the initial version which has the
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# issue, but at least 0.19.2 has the issue) no longer have the symbol
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# FRIBIDI_CHAR_SET_UTF8. But the symbol is build with some macros confusing
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# cmake. To test for that case let the compiler give its verdict.
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if(FOUND_fribidi_charset_to_unicode AND NOT FOUND_FRIBIDI_CHAR_SET_UTF8)
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file(WRITE "${CMAKE_BINARY_DIR}/fribidi_test.c"
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"#include <fribidi.h>\nint main(){FriBidiCharSet s = FRIBIDI_CHAR_SET_UTF8;}"
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)
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try_compile(FOUND_FRIBIDI_CHAR_SET_UTF8
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"${CMAKE_BINARY_DIR}"
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"${CMAKE_BINARY_DIR}/fribidi_test.c"
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CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${FRIBIDI_INCLUDE_DIR}"
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)
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file(REMOVE "${CMAKE_BINARY_DIR}/fribidi_test.c")
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endif(FOUND_fribidi_charset_to_unicode AND NOT FOUND_FRIBIDI_CHAR_SET_UTF8)
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if(FOUND_fribidi_charset_to_unicode AND FOUND_FRIBIDI_CHAR_SET_UTF8)
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# fribidi >= 0.10.5
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SET(FRIBIDI_LIBRARIES ${FRIBIDI_LIBRARY})
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SET(FRIBIDI_FOUND "YES")
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elseif(FOUND_fribidi_utf8_to_unicode)
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# fribidi <= 0.10.4
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SET(FRIBIDI_LIBRARIES ${FRIBIDI_LIBRARY})
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SET(FRIBIDI_FOUND "YES")
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add_definitions(-DOLD_FRIBIDI)
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MESSAGE(STATUS "Legacy FriBiDi: ${FRIBIDI_LIBRARY}")
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else()
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SET(FRIBIDI_LIBRARIES "NOTFOUND")
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SET(FRIBIDI_INCLUDE_DIR "NOTFOUND")
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SET(FRIBIDI_FOUND "NO")
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endif()
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ENDIF (FRIBIDI_LIBRARY AND FRIBIDI_INCLUDE_DIR)
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IF (FRIBIDI_FOUND)
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IF (NOT FRIBIDI_FIND_QUIETLY)
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MESSAGE(STATUS "Using FriBiDi: ${FRIBIDI_LIBRARY}")
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ENDIF (NOT FRIBIDI_FIND_QUIETLY)
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ELSE (FRIBIDI_FOUND)
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IF (FRIBIDI_FIND_REQUIRED)
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MESSAGE(FATAL_ERROR "Could not find FriBiDi library")
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ENDIF (FRIBIDI_FIND_REQUIRED)
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ENDIF (FRIBIDI_FOUND)
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