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86 lines
2.5 KiB
CMake
86 lines
2.5 KiB
CMake
#-------------------------------------------------------------------
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# This file is part of the CMake build system for OGRE
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# (Object-oriented Graphics Rendering Engine)
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# For the latest info, see http://www.ogre3d.org/
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#
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# The contents of this file are placed in the public domain. Feel
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# free to make use of it in any way you like.
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#-------------------------------------------------------------------
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macro(get_preprocessor_entry CONTENTS KEYWORD VARIABLE)
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string(REGEX MATCH
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"# *define +${KEYWORD} +((\"([^\n]*)\")|([^ \n]*))"
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PREPROC_TEMP_VAR
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${${CONTENTS}}
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)
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if (CMAKE_MATCH_3)
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set(${VARIABLE} ${CMAKE_MATCH_3})
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else ()
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set(${VARIABLE} ${CMAKE_MATCH_4})
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endif ()
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endmacro()
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macro(has_preprocessor_entry CONTENTS KEYWORD VARIABLE)
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string(REGEX MATCH
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"\n *# *define +(${KEYWORD})"
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PREPROC_TEMP_VAR
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${${CONTENTS}}
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)
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if (CMAKE_MATCH_1)
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set(${VARIABLE} TRUE)
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else ()
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set(${VARIABLE} FALSE)
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endif ()
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endmacro()
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macro(replace_preprocessor_entry VARIABLE KEYWORD NEW_VALUE)
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string(REGEX REPLACE
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"(// *)?# *define +${KEYWORD} +[^ \n]*"
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"#define ${KEYWORD} ${NEW_VALUE}"
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${VARIABLE}_TEMP
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${${VARIABLE}}
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)
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set(${VARIABLE} ${${VARIABLE}_TEMP})
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endmacro()
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macro(set_preprocessor_entry VARIABLE KEYWORD ENABLE)
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if (${ENABLE})
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set(TMP_REPLACE_STR "#define ${KEYWORD}")
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else ()
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set(TMP_REPLACE_STR "// #define ${KEYWORD}")
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endif ()
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string(REGEX REPLACE
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"(// *)?# *define +${KEYWORD} *\n"
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${TMP_REPLACE_STR}
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${VARIABLE}_TEMP
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${${VARIABLE}}
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)
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set(${VARIABLE} ${${VARIABLE}_TEMP})
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endmacro()
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# get_version_from_n_defines(result_version_name header_path [list of defines...])
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#
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# get_version_from_n_defines(MyPackage_VERSION /Header/Path/HeaderName.h
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# MYPACKAGE_VERSION_MAJOR
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# MYPACKAGE_VERSION_MINOR
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# )
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# Function call will get the values of defines MYPACKAGE_VERSION_MAJOR & MYPACKAGE_VERSION_MINOR
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# from header and set "${MYPACKAGE_VERSION_MAJOR}.${MYPACKAGE_VERSION_MINOR}" into MyPackage_VERSION
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#
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function(get_version_from_n_defines OUT_VAR HEADER_PATH)
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if (NOT EXISTS ${HEADER_PATH})
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message(FATAL_ERROR "Unable to find '${HEADER_PATH}'")
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return()
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endif ()
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file(READ ${HEADER_PATH} _CONTENT)
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unset(_DEFINES_LIST)
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foreach (_DEFINE_NAME ${ARGN})
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get_preprocessor_entry(_CONTENT ${_DEFINE_NAME} _DEFINE_VALUE)
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list(APPEND _DEFINES_LIST ${_DEFINE_VALUE})
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endforeach()
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string(REPLACE ";" "." _VERSION "${_DEFINES_LIST}")
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set(${OUT_VAR} "${_VERSION}" PARENT_SCOPE)
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endfunction()
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