zstd/build/cmake/CMakeModules/GetZstdLibraryVersion.cmake

function(GetZstdLibraryVersion _header _major _minor _patch)
    # Read file content
    file(READ ${_header} CONTENT)

    string(REGEX MATCH ".*define ZSTD_VERSION_MAJOR *([0-9]+).*define ZSTD_VERSION_MINOR *([0-9]+).*define ZSTD_VERSION_RELEASE *([0-9]+)" VERSION_REGEX "${CONTENT}")
    set(${_major} ${CMAKE_MATCH_1} PARENT_SCOPE)
    set(${_minor} ${CMAKE_MATCH_2} PARENT_SCOPE)
    set(${_patch} ${CMAKE_MATCH_3} PARENT_SCOPE)
endfunction()
Provide forward compatible cmake paradigms Automatically extract version information from the zstd.h file. Use naming of variables consisent with modern cmake and https://semver.org/ (Semantic Versioning 2.0.0, MAJOR, MINOR, PATCH) Modern versions of cmake provide consistent paradigms for configuring project external interface values. This set of changes provide a back port of some of cmake 3+ paradigms back to cmake 2.8.9. Set and allow use of the current cmake policies for newer versions of cmake when available to allow for modern compiler features to be utilized when available. NOTE: The intent is that future modifications to cmake will enable (conditional on cmake version support) the ability to support modern linkage, and target export mechanisms. Those future changes will make incorporating zstd into other packages much easier. This patch also allows the more rigourous error checking of commmon cmake errors to be preformed by cmake (i.e. more stringent syntax checking and create errors for common hard to find misuses of cmake variables). This patch also provides support for modern compiler support options by cmake (like enabling interprocedural optimization if link time optimizations are known to be supported by the compiler envirionment. IPO can be supported by setting the CMAKE_INTERPROCEDURAL_OPTIMIZATION variable for newer versions of cmake. 2018-12-24 06:18:26 -08:00			`function(GetZstdLibraryVersion _header _major _minor _patch)`
Move GetLibraryVersion function to its own module file 2017-03-16 06:06:49 -07:00			`# Read file content`
STYLE: Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. 2018-12-22 17:31:59 -08:00			`file(READ ${_header} CONTENT)`
Move GetLibraryVersion function to its own module file 2017-03-16 06:06:49 -07:00
CMake: Fix version parsing and allow Unix flags on Clang 2017-03-21 13:44:33 -07:00			`string(REGEX MATCH ".define ZSTD_VERSION_MAJOR ([0-9]+).define ZSTD_VERSION_MINOR ([0-9]+).define ZSTD_VERSION_RELEASE ([0-9]+)" VERSION_REGEX "${CONTENT}")`
STYLE: Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case. 2018-12-22 17:31:59 -08:00			`set(${_major} ${CMAKE_MATCH_1} PARENT_SCOPE)`
			`set(${_minor} ${CMAKE_MATCH_2} PARENT_SCOPE)`
Provide forward compatible cmake paradigms Automatically extract version information from the zstd.h file. Use naming of variables consisent with modern cmake and https://semver.org/ (Semantic Versioning 2.0.0, MAJOR, MINOR, PATCH) Modern versions of cmake provide consistent paradigms for configuring project external interface values. This set of changes provide a back port of some of cmake 3+ paradigms back to cmake 2.8.9. Set and allow use of the current cmake policies for newer versions of cmake when available to allow for modern compiler features to be utilized when available. NOTE: The intent is that future modifications to cmake will enable (conditional on cmake version support) the ability to support modern linkage, and target export mechanisms. Those future changes will make incorporating zstd into other packages much easier. This patch also allows the more rigourous error checking of commmon cmake errors to be preformed by cmake (i.e. more stringent syntax checking and create errors for common hard to find misuses of cmake variables). This patch also provides support for modern compiler support options by cmake (like enabling interprocedural optimization if link time optimizations are known to be supported by the compiler envirionment. IPO can be supported by setting the CMAKE_INTERPROCEDURAL_OPTIMIZATION variable for newer versions of cmake. 2018-12-24 06:18:26 -08:00			`set(${_patch} ${CMAKE_MATCH_3} PARENT_SCOPE)`
Move GetLibraryVersion function to its own module file 2017-03-16 06:06:49 -07:00			`endfunction()`
Provide forward compatible cmake paradigms Automatically extract version information from the zstd.h file. Use naming of variables consisent with modern cmake and https://semver.org/ (Semantic Versioning 2.0.0, MAJOR, MINOR, PATCH) Modern versions of cmake provide consistent paradigms for configuring project external interface values. This set of changes provide a back port of some of cmake 3+ paradigms back to cmake 2.8.9. Set and allow use of the current cmake policies for newer versions of cmake when available to allow for modern compiler features to be utilized when available. NOTE: The intent is that future modifications to cmake will enable (conditional on cmake version support) the ability to support modern linkage, and target export mechanisms. Those future changes will make incorporating zstd into other packages much easier. This patch also allows the more rigourous error checking of commmon cmake errors to be preformed by cmake (i.e. more stringent syntax checking and create errors for common hard to find misuses of cmake variables). This patch also provides support for modern compiler support options by cmake (like enabling interprocedural optimization if link time optimizations are known to be supported by the compiler envirionment. IPO can be supported by setting the CMAKE_INTERPROCEDURAL_OPTIMIZATION variable for newer versions of cmake. 2018-12-24 06:18:26 -08:00