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vcpkg/scripts/cmake/vcpkg_fixup_pkgconfig.cmake

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#[===[.md:
# vcpkg_fixup_pkgconfig
Fix common paths in *.pc files and make everything relativ to $(prefix)
## Usage
```cmake
vcpkg_fixup_pkgconfig(
[RELEASE_FILES <PATHS>...]
[DEBUG_FILES <PATHS>...]
[SKIP_CHECK]
)
```
## Parameters
### RELEASE_FILES
Specifies a list of files to apply the fixes for release paths.
Defaults to every *.pc file in the folder ${CURRENT_PACKAGES_DIR} without ${CURRENT_PACKAGES_DIR}/debug/
### DEBUG_FILES
Specifies a list of files to apply the fixes for debug paths.
Defaults to every *.pc file in the folder ${CURRENT_PACKAGES_DIR}/debug/
### SKIP_CHECK
Skips the library checks in vcpkg_fixup_pkgconfig. Only use if the script itself has unhandled cases.
### SYSTEM_PACKAGES (deprecated)
This argument has been deprecated and has no effect.
### SYSTEM_LIBRARIES (deprecated)
This argument has been deprecated and has no effect.
### IGNORE_FLAGS (deprecated)
This argument has been deprecated and has no effect.
## Notes
Still work in progress. If there are more cases which can be handled here feel free to add them
## Examples
* [brotli](https://github.com/Microsoft/vcpkg/blob/master/ports/brotli/portfile.cmake)
#]===]
function(vcpkg_fixup_pkgconfig_check_files pkg_cfg_cmd _file _config)
set(PATH_SUFFIX_DEBUG /debug)
set(PATH_SUFFIX_RELEASE)
set(PKGCONFIG_INSTALLED_DIR "${CURRENT_INSTALLED_DIR}${PATH_SUFFIX_${_config}}/lib/pkgconfig")
set(PKGCONFIG_INSTALLED_SHARE_DIR "${CURRENT_INSTALLED_DIR}/share/pkgconfig")
set(PKGCONFIG_PACKAGES_DIR "${CURRENT_PACKAGES_DIR}${PATH_SUFFIX_${_config}}/lib/pkgconfig")
set(PKGCONFIG_PACKAGES_SHARE_DIR "${CURRENT_PACKAGES_DIR}/share/pkgconfig")
if(DEFINED ENV{PKG_CONFIG_PATH})
set(BACKUP_ENV_PKG_CONFIG_PATH "$ENV{PKG_CONFIG_PATH}")
else()
unset(BACKUP_ENV_PKG_CONFIG_PATH)
endif()
if(DEFINED ENV{PKG_CONFIG_PATH} AND NOT ENV{PKG_CONFIG_PATH} STREQUAL "")
set(ENV{PKG_CONFIG_PATH} "${PKGCONFIG_INSTALLED_DIR}${VCPKG_HOST_PATH_SEPARATOR}${PKGCONFIG_INSTALLED_SHARE_DIR}${VCPKG_HOST_PATH_SEPARATOR}${PKGCONFIG_PACKAGES_DIR}${VCPKG_HOST_PATH_SEPARATOR}${PKGCONFIG_PACKAGES_SHARE_DIR}${VCPKG_HOST_PATH_SEPARATOR}$ENV{PKG_CONFIG_PATH}")
else()
set(ENV{PKG_CONFIG_PATH} "${PKGCONFIG_INSTALLED_DIR}${VCPKG_HOST_PATH_SEPARATOR}${PKGCONFIG_INSTALLED_SHARE_DIR}${VCPKG_HOST_PATH_SEPARATOR}${PKGCONFIG_PACKAGES_DIR}${VCPKG_HOST_PATH_SEPARATOR}${PKGCONFIG_PACKAGES_SHARE_DIR}")
endif()
# First make sure everything is ok with the package and its deps
get_filename_component(_package_name "${_file}" NAME_WLE)
debug_message("Checking package (${_config}): ${_package_name}")
execute_process(COMMAND "${pkg_cfg_cmd}" --print-errors --exists ${_package_name}
WORKING_DIRECTORY "${CURRENT_BUILDTREES_DIR}"
RESULT_VARIABLE _pkg_error_var
OUTPUT_VARIABLE _pkg_output
ERROR_VARIABLE _pkg_error_out
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_STRIP_TRAILING_WHITESPACE
)
if(NOT _pkg_error_var EQUAL 0)
message(STATUS "pkg_cfg_cmd call with:${pkg_cfg_cmd} --exists ${_package_name} failed")
message(STATUS "ENV{PKG_CONFIG_PATH}:$ENV{PKG_CONFIG_PATH}")
message(STATUS "pkg-config call failed with error code:${_pkg_error_var}")
message(STATUS "pkg-config output:${_pkg_output}")
message(FATAL_ERROR "pkg-config error output:${_pkg_error_out}")
else()
debug_message("pkg-config returned:${_pkg_error_var}")
debug_message("pkg-config output:${_pkg_output}")
debug_message("pkg-config error output:${_pkg_error_out}")
endif()
if(DEFINED BACKUP_ENV_PKG_CONFIG_PATH)
set(ENV{PKG_CONFIG_PATH} "${BACKUP_ENV_PKG_CONFIG_PATH}")
else()
unset(ENV{PKG_CONFIG_PATH})
endif()
endfunction()
function(vcpkg_fixup_pkgconfig)
# parse parameters such that semicolons in options arguments to COMMAND don't get erased
cmake_parse_arguments(PARSE_ARGV 0 _vfpkg "SKIP_CHECK" "" "RELEASE_FILES;DEBUG_FILES;SYSTEM_LIBRARIES;SYSTEM_PACKAGES;IGNORE_FLAGS")
if(_vfpkg_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "vcpkg_fixup_pkgconfig() was passed extra arguments: ${_vfct_UNPARSED_ARGUMENTS}")
endif()
if((DEFINED _vfpkg_RELEASE_FILES AND NOT DEFINED _vfpkg_DEBUG_FILES) OR (NOT DEFINED _vfpkg_RELEASE_FILES AND DEFINED _vfpkg_DEBUG_FILES))
message(FATAL_ERROR "vcpkg_fixup_pkgconfig() requires both or neither of DEBUG_FILES and RELEASE_FILES")
endif()
if(NOT DEFINED _vfpkg_RELEASE_FILES)
file(GLOB_RECURSE _vfpkg_RELEASE_FILES "${CURRENT_PACKAGES_DIR}/**/*.pc")
file(GLOB_RECURSE _vfpkg_DEBUG_FILES "${CURRENT_PACKAGES_DIR}/debug/**/*.pc")
if(_vfpkg_DEBUG_FILES)
list(REMOVE_ITEM _vfpkg_RELEASE_FILES ${_vfpkg_DEBUG_FILES})
endif()
endif()
vcpkg_find_acquire_program(PKGCONFIG)
debug_message("Using pkg-config from: ${PKGCONFIG}")
#Absolute Unix like paths
string(REGEX REPLACE "([a-zA-Z]):/" "/\\1/" _VCPKG_PACKAGES_DIR "${CURRENT_PACKAGES_DIR}")
string(REGEX REPLACE "([a-zA-Z]):/" "/\\1/" _VCPKG_INSTALLED_DIR "${CURRENT_INSTALLED_DIR}")
foreach(CONFIG RELEASE DEBUG)
debug_message("${CONFIG} Files: ${_vfpkg_${CONFIG}_FILES}")
if(VCPKG_BUILD_TYPE STREQUAL "debug" AND CONFIG STREQUAL "RELEASE")
continue()
endif()
if(VCPKG_BUILD_TYPE STREQUAL "release" AND CONFIG STREQUAL "DEBUG")
continue()
endif()
foreach(_file ${_vfpkg_${CONFIG}_FILES})
message(STATUS "Fixing pkgconfig file: ${_file}")
get_filename_component(PKG_LIB_SEARCH_PATH "${_file}" DIRECTORY)
if(CONFIG STREQUAL "DEBUG")
file(RELATIVE_PATH RELATIVE_PC_PATH "${PKG_LIB_SEARCH_PATH}" "${CURRENT_PACKAGES_DIR}/debug/")
else()
file(RELATIVE_PATH RELATIVE_PC_PATH "${PKG_LIB_SEARCH_PATH}" "${CURRENT_PACKAGES_DIR}")
endif()
# strip trailing slash
string(REGEX REPLACE "/$" "" RELATIVE_PC_PATH "${RELATIVE_PC_PATH}")
#Correct *.pc file
file(READ "${_file}" _contents)
string(REPLACE "${CURRENT_PACKAGES_DIR}" "\${prefix}" _contents "${_contents}")
string(REPLACE "${CURRENT_INSTALLED_DIR}" "\${prefix}" _contents "${_contents}")
string(REPLACE "${_VCPKG_PACKAGES_DIR}" "\${prefix}" _contents "${_contents}")
string(REPLACE "${_VCPKG_INSTALLED_DIR}" "\${prefix}" _contents "${_contents}")
string(REGEX REPLACE "(^|\n)prefix[\t ]*=[^\n]*" "" _contents "${_contents}")
if(CONFIG STREQUAL "DEBUG")
string(REPLACE "}/debug" "}" _contents "${_contents}")
# Prefix points at the debug subfolder
string(REPLACE "\${prefix}/include" "\${prefix}/../include" _contents "${_contents}")
string(REPLACE "\${prefix}/share" "\${prefix}/../share" _contents "${_contents}")
endif()
string(REGEX REPLACE " -L(\\\${[^}]*}[^ \n\t]*)" " -L\"\\1\"" _contents "${_contents}")
string(REGEX REPLACE " -I(\\\${[^}]*}[^ \n\t]*)" " -I\"\\1\"" _contents "${_contents}")
string(REGEX REPLACE " -l(\\\${[^}]*}[^ \n\t]*)" " -l\"\\1\"" _contents "${_contents}")
# This section fuses XYZ.private and XYZ according to VCPKG_LIBRARY_LINKAGE
#
# Pkgconfig searches Requires.private transitively for Cflags in the dynamic case,
# which prevents us from removing it.
#
# Once this transformation is complete, users of vcpkg should never need to pass
# --static.
if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
# Libs comes before Libs.private
string(REGEX REPLACE "(^|\n)(Libs: [^\n]*)(.*)\nLibs.private:( [^\n]*)" "\\1\\2\\4\\3" _contents "${_contents}")
# Libs.private comes before Libs
string(REGEX REPLACE "(^|\n)Libs.private:( [^\n]*)(.*\nLibs: [^\n]*)" "\\3\\2" _contents "${_contents}")
# Only Libs.private
string(REGEX REPLACE "(^|\n)Libs.private: " "\\1Libs: " _contents "${_contents}")
# Requires comes before Requires.private
string(REGEX REPLACE "(^|\n)(Requires: [^\n]*)(.*)\nRequires.private:( [^\n]*)" "\\1\\2\\4\\3" _contents "${_contents}")
# Requires.private comes before Requires
string(REGEX REPLACE "(^|\n)Requires.private:( [^\n]*)(.*\nRequires: [^\n]*)" "\\3\\2" _contents "${_contents}")
# Only Requires.private
string(REGEX REPLACE "(^|\n)Requires.private: " "\\1Requires: " _contents "${_contents}")
endif()
file(WRITE "${_file}" "prefix=\${pcfiledir}/${RELATIVE_PC_PATH}\n${_contents}")
unset(PKG_LIB_SEARCH_PATH)
endforeach()
if(NOT _vfpkg_SKIP_CHECK) # The check can only run after all files have been corrected!
foreach(_file ${_vfpkg_${CONFIG}_FILES})
vcpkg_fixup_pkgconfig_check_files("${PKGCONFIG}" "${_file}" "${CONFIG}")
endforeach()
endif()
endforeach()
debug_message("Fixing pkgconfig --- finished")
set(VCPKG_FIXUP_PKGCONFIG_CALLED TRUE CACHE INTERNAL "See below" FORCE)
# Variable to check if this function has been called!
# Theoreotically vcpkg could look for *.pc files and automatically call this function
# or check if this function has been called if *.pc files are detected.
# The same is true for vcpkg_fixup_cmake_targets
endfunction()
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