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#[===[.md:
# vcpkg_build_make

Build a linux makefile project.

## Usage:
```cmake
vcpkg_build_make([BUILD_TARGET <target>]
                 [ADD_BIN_TO_PATH]
                 [ENABLE_INSTALL]
                 [MAKEFILE <makefileName>]
                 [LOGFILE_ROOT <logfileroot>])
```

### BUILD_TARGET
The target passed to the make build command (`./make <target>`). If not specified, the 'all' target will
be passed.

### ADD_BIN_TO_PATH
Adds the appropriate Release and Debug `bin\` directories to the path during the build such that executables can run against the in-tree DLLs.

### ENABLE_INSTALL
IF the port supports the install target use vcpkg_install_make() instead of vcpkg_build_make()

### MAKEFILE
Specifies the Makefile as a relative path from the root of the sources passed to `vcpkg_configure_make()`

### BUILD_TARGET
The target passed to the make build command (`./make <target>`). Defaults to 'all'.

### INSTALL_TARGET
The target passed to the make build command (`./make <target>`) if `ENABLE_INSTALL` is used. Defaults to 'install'.

### DISABLE_PARALLEL
The underlying buildsystem will be instructed to not parallelize

### SUBPATH
Additional subdir to invoke make in. Useful if only parts of a port should be built. 

## Notes:
This command should be preceded by a call to [`vcpkg_configure_make()`](vcpkg_configure_make.md).
You can use the alias [`vcpkg_install_make()`](vcpkg_install_make.md) function if your makefile supports the
"install" target

## Examples

* [x264](https://github.com/Microsoft/vcpkg/blob/master/ports/x264/portfile.cmake)
* [tcl](https://github.com/Microsoft/vcpkg/blob/master/ports/tcl/portfile.cmake)
* [freexl](https://github.com/Microsoft/vcpkg/blob/master/ports/freexl/portfile.cmake)
* [libosip2](https://github.com/Microsoft/vcpkg/blob/master/ports/libosip2/portfile.cmake)
#]===]

function(vcpkg_build_make)
    z_vcpkg_get_cmake_vars(cmake_vars_file)
    include("${cmake_vars_file}")

    # parse parameters such that semicolons in options arguments to COMMAND don't get erased
    cmake_parse_arguments(PARSE_ARGV 0 _bc "ADD_BIN_TO_PATH;ENABLE_INSTALL;DISABLE_PARALLEL" "LOGFILE_ROOT;BUILD_TARGET;SUBPATH;MAKEFILE;INSTALL_TARGET" "")

    if(NOT _bc_LOGFILE_ROOT)
        set(_bc_LOGFILE_ROOT "build")
    endif()

    if(NOT _bc_BUILD_TARGET)
        set(_bc_BUILD_TARGET "all")
    endif()

    if (NOT _bc_MAKEFILE)
        set(_bc_MAKEFILE Makefile)
    endif()

    if(NOT _bc_INSTALL_TARGET)
        set(_bc_INSTALL_TARGET "install")
    endif()

    if(WIN32)
        set(_VCPKG_PREFIX ${CURRENT_PACKAGES_DIR})
        set(_VCPKG_INSTALLED ${CURRENT_INSTALLED_DIR})
    else()
        string(REPLACE " " "\ " _VCPKG_PREFIX "${CURRENT_PACKAGES_DIR}")
        string(REPLACE " " "\ " _VCPKG_INSTALLED "${CURRENT_INSTALLED_DIR}")
    endif()

    set(MAKE_OPTS )
    set(INSTALL_OPTS )
    if (CMAKE_HOST_WIN32)
        set(PATH_GLOBAL "$ENV{PATH}")
        vcpkg_add_to_path(PREPEND "${SCRIPTS}/buildsystems/make_wrapper")
        if(NOT DEFINED Z_VCPKG_MAKE)
            vcpkg_acquire_msys(MSYS_ROOT)
            find_program(Z_VCPKG_MAKE make PATHS "${MSYS_ROOT}/usr/bin" NO_DEFAULT_PATH REQUIRED)
        endif()
        set(MAKE_COMMAND "${Z_VCPKG_MAKE}")
        set(MAKE_OPTS ${_bc_MAKE_OPTIONS} -j ${VCPKG_CONCURRENCY} --trace -f ${_bc_MAKEFILE} ${_bc_BUILD_TARGET})
        set(NO_PARALLEL_MAKE_OPTS ${_bc_MAKE_OPTIONS} -j 1 --trace -f ${_bc_MAKEFILE} ${_bc_BUILD_TARGET})

        string(REPLACE " " "\\\ " _VCPKG_PACKAGE_PREFIX ${CURRENT_PACKAGES_DIR})
        string(REGEX REPLACE "([a-zA-Z]):/" "/\\1/" _VCPKG_PACKAGE_PREFIX "${_VCPKG_PACKAGE_PREFIX}")
        set(INSTALL_OPTS -j ${VCPKG_CONCURRENCY} --trace -f ${_bc_MAKEFILE} ${_bc_INSTALL_TARGET} DESTDIR=${_VCPKG_PACKAGE_PREFIX})
        #TODO: optimize for install-data (release) and install-exec (release/debug)
    else()
        if(VCPKG_HOST_IS_OPENBSD)
            find_program(Z_VCPKG_MAKE gmake REQUIRED)
        else()
            find_program(Z_VCPKG_MAKE make REQUIRED)
        endif()
        set(MAKE_COMMAND "${Z_VCPKG_MAKE}")
        set(MAKE_OPTS ${_bc_MAKE_OPTIONS} V=1 -j ${VCPKG_CONCURRENCY} -f ${_bc_MAKEFILE} ${_bc_BUILD_TARGET})
        set(NO_PARALLEL_MAKE_OPTS ${_bc_MAKE_OPTIONS} V=1 -j 1 -f ${_bc_MAKEFILE} ${_bc_BUILD_TARGET})
        set(INSTALL_OPTS -j ${VCPKG_CONCURRENCY} -f ${_bc_MAKEFILE} ${_bc_INSTALL_TARGET} DESTDIR=${CURRENT_PACKAGES_DIR})
    endif()

    # Since includes are buildtype independent those are setup by vcpkg_configure_make
    _vcpkg_backup_env_variables(LIB LIBPATH LIBRARY_PATH LD_LIBRARY_PATH)

    foreach(BUILDTYPE "debug" "release")
        if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL BUILDTYPE)
            if(BUILDTYPE STREQUAL "debug")
                # Skip debug generate
                if (_VCPKG_NO_DEBUG)
                    continue()
                endif()
                set(SHORT_BUILDTYPE "-dbg")
                set(CMAKE_BUILDTYPE "DEBUG")
                set(PATH_SUFFIX "/debug")
            else()
                # In NO_DEBUG mode, we only use ${TARGET_TRIPLET} directory.
                if (_VCPKG_NO_DEBUG)
                    set(SHORT_BUILDTYPE "")
                else()
                    set(SHORT_BUILDTYPE "-rel")
                endif()
                set(CMAKE_BUILDTYPE "RELEASE")
                set(PATH_SUFFIX "")
            endif()

            set(WORKING_DIRECTORY "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}${SHORT_BUILDTYPE}${_bc_SUBPATH}")
            message(STATUS "Building ${TARGET_TRIPLET}${SHORT_BUILDTYPE}")

            _vcpkg_extract_cpp_flags_and_set_cflags_and_cxxflags(${CMAKE_BUILDTYPE})

            if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
                set(LINKER_FLAGS_${CMAKE_BUILDTYPE} "${VCPKG_DETECTED_STATIC_LINKER_FLAGS_${CMAKE_BUILDTYPE}}")
            else() # dynamic
                set(LINKER_FLAGS_${CMAKE_BUILDTYPE} "${VCPKG_DETECTED_SHARED_LINKER_FLAGS_${CMAKE_BUILDTYPE}}")
            endif()
            if (CMAKE_HOST_WIN32 AND VCPKG_DETECTED_C_COMPILER MATCHES "cl.exe")
                set(LDFLAGS_${CMAKE_BUILDTYPE} "-L${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib -L${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib/manual-link")
                set(LINK_ENV_${CMAKE_BUILDTYPE} "$ENV{_LINK_} ${LINKER_FLAGS_${CMAKE_BUILDTYPE}}")
            else()
                set(LDFLAGS_${CMAKE_BUILDTYPE} "-L${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib -L${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib/manual-link ${LINKER_FLAGS_${CMAKE_BUILDTYPE}}")
            endif()
            
            # Setup environment
            set(ENV{CPPFLAGS} "${CPPFLAGS_${CMAKE_BUILDTYPE}}")
            set(ENV{CFLAGS} "${CFLAGS_${CMAKE_BUILDTYPE}}")
            set(ENV{CXXFLAGS} "${CXXFLAGS_${CMAKE_BUILDTYPE}}")
            set(ENV{RCFLAGS} "${VCPKG_DETECTED_CMAKE_RC_FLAGS_${CMAKE_BUILDTYPE}}")
            set(ENV{LDFLAGS} "${LDFLAGS_${CMAKE_BUILDTYPE}}")
            set(ENV{LIB} "${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib/${VCPKG_HOST_PATH_SEPARATOR}${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib/manual-link/${LIB_PATHLIKE_CONCAT}")
            set(ENV{LIBPATH} "${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib/${VCPKG_HOST_PATH_SEPARATOR}${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib/manual-link/${LIBPATH_PATHLIKE_CONCAT}")
            set(ENV{LIBRARY_PATH} "${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib/${VCPKG_HOST_PATH_SEPARATOR}${_VCPKG_INSTALLED}${PATH_SUFFIX}/lib/manual-link/${LIBRARY_PATH_PATHLIKE_CONCAT}")
            #set(ENV{LD_LIBRARY_PATH} "${_VCPKG_INSTALLED}${PATH_SUFFIX_${BUILDTYPE}}/lib/${VCPKG_HOST_PATH_SEPARATOR}${_VCPKG_INSTALLED}${PATH_SUFFIX_${BUILDTYPE}}/lib/manual-link/${LD_LIBRARY_PATH_PATHLIKE_CONCAT}")

            if(LINK_ENV_${_VAR_SUFFIX})
                set(_LINK_CONFIG_BACKUP "$ENV{_LINK_}")
                set(ENV{_LINK_} "${LINK_ENV_${_VAR_SUFFIX}}")
            endif()

            if(_bc_ADD_BIN_TO_PATH)
                set(_BACKUP_ENV_PATH "$ENV{PATH}")
                vcpkg_add_to_path(PREPEND "${CURRENT_INSTALLED_DIR}${PATH_SUFFIX}/bin")
            endif()

            if(MAKE_BASH)
                set(MAKE_CMD_LINE "${MAKE_COMMAND} ${MAKE_OPTS}")
                set(NO_PARALLEL_MAKE_CMD_LINE "${MAKE_COMMAND} ${NO_PARALLEL_MAKE_OPTS}")
            else()
                set(MAKE_CMD_LINE ${MAKE_COMMAND} ${MAKE_OPTS})
                set(NO_PARALLEL_MAKE_CMD_LINE ${MAKE_COMMAND} ${NO_PARALLEL_MAKE_OPTS})
            endif()

            if (_bc_DISABLE_PARALLEL)
                vcpkg_execute_build_process(
                        COMMAND ${MAKE_BASH} ${NO_PARALLEL_MAKE_CMD_LINE}
                        WORKING_DIRECTORY "${WORKING_DIRECTORY}"
                        LOGNAME "${_bc_LOGFILE_ROOT}-${TARGET_TRIPLET}${SHORT_BUILDTYPE}"
                )
            else()
                vcpkg_execute_build_process(
                        COMMAND ${MAKE_BASH} ${MAKE_CMD_LINE}
                        NO_PARALLEL_COMMAND ${MAKE_BASH} ${NO_PARALLEL_MAKE_CMD_LINE}
                        WORKING_DIRECTORY "${WORKING_DIRECTORY}"
                        LOGNAME "${_bc_LOGFILE_ROOT}-${TARGET_TRIPLET}${SHORT_BUILDTYPE}"
                )
            endif()

            file(READ "${CURRENT_BUILDTREES_DIR}/${_bc_LOGFILE_ROOT}-${TARGET_TRIPLET}${SHORT_BUILDTYPE}-out.log" LOGDATA) 
            if(LOGDATA MATCHES "Warning: linker path does not have real file for library")
                message(FATAL_ERROR "libtool could not find a file being linked against!")
            endif()

            if (_bc_ENABLE_INSTALL)
                message(STATUS "Installing ${TARGET_TRIPLET}${SHORT_BUILDTYPE}")
                if(MAKE_BASH)
                    set(MAKE_CMD_LINE "${MAKE_COMMAND} ${INSTALL_OPTS}")
                else()
                    set(MAKE_CMD_LINE ${MAKE_COMMAND} ${INSTALL_OPTS})
                endif()
                vcpkg_execute_build_process(
                    COMMAND ${MAKE_BASH} ${MAKE_CMD_LINE}
                    WORKING_DIRECTORY "${WORKING_DIRECTORY}"
                    LOGNAME "install-${TARGET_TRIPLET}${SHORT_BUILDTYPE}"
                )
            endif()

            if(_LINK_CONFIG_BACKUP)
                set(ENV{_LINK_} "${_LINK_CONFIG_BACKUP}")
                unset(_LINK_CONFIG_BACKUP)
            endif()

            if(_bc_ADD_BIN_TO_PATH)
                set(ENV{PATH} "${_BACKUP_ENV_PATH}")
            endif()
        endif()
    endforeach()

    if (_bc_ENABLE_INSTALL)
        string(REGEX REPLACE "([a-zA-Z]):/" "/\\1/" _VCPKG_INSTALL_PREFIX "${CURRENT_INSTALLED_DIR}")
        file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}_tmp")
        file(RENAME "${CURRENT_PACKAGES_DIR}" "${CURRENT_PACKAGES_DIR}_tmp")
        file(RENAME "${CURRENT_PACKAGES_DIR}_tmp${_VCPKG_INSTALL_PREFIX}" "${CURRENT_PACKAGES_DIR}")
        file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}_tmp")
    endif()

    # Remove libtool files since they contain absolute paths and are not necessary. 
    file(GLOB_RECURSE LIBTOOL_FILES "${CURRENT_PACKAGES_DIR}/**/*.la")
    if(LIBTOOL_FILES)
        file(REMOVE ${LIBTOOL_FILES})
    endif()

    if (CMAKE_HOST_WIN32)
        set(ENV{PATH} "${PATH_GLOBAL}")
    endif()

    _vcpkg_restore_env_variables(LIB LIBPATH LIBRARY_PATH LD_LIBRARY_PATH)
endfunction()