ladybird/Meta/CMake/check_for_dependencies.cmake
Diego Iastrubni 8b30b69dac Meta: Use CMake functions to extract files
Newer cmake's have internal functions to un-compress files. These
functions will work on pure windows - as well as linux. This
eliminates the need to search for external tools (TAR,GZIP,ZIP) - and
helps fixing #9866.

In order to finally fix #9866 we need to decide to bump the cmake
version requirements and remove the checks. If we demand a newer cmake
version, we will loose Ubuntu 20.04 as a build target - as it ships
with CMake 3.16.

For now - we keep compatibility with CMake 3.16 - and only if CMake
3.18 as been found - we use its new functionality.
2022-09-09 10:31:12 +01:00

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CMake

#
# Check for the dependencies that the Serenity (target) and Lagom (host) builds require.
#
# FIXME: With cmake 3.18, we can change unzip/untar/gzip steps to use
# file( ARCHIVE_EXTRACT) instead
#
# Additionally we have to emit an error message for each tool,
# as REQUIRED only works with cmake 3.18 and above.
if (CMAKE_VERSION VERSION_LESS 3.18.0)
find_program(UNZIP_TOOL unzip REQUIRED)
message(STATUS "Found cmake ${CMAKE_VERSION} - testing for external tools to uncompress")
if (NOT UNZIP_TOOL)
message(FATAL_ERROR "Failed to locate unzip on your machine, please install it and re-read the SerenityOS build documentation.")
endif()
find_program(TAR_TOOL tar REQUIRED)
if (NOT TAR_TOOL)
message(FATAL_ERROR "Failed to locate tar on your machine, please install it and re-read the SerenityOS build documentation.")
endif()
find_program(GZIP_TOOL gzip REQUIRED)
if (NOT GZIP_TOOL)
message(FATAL_ERROR "Failed to locate gzip on your machine, please install it and re-read the SerenityOS build documentation.")
endif()
else()
message(STATUS "Found cmake ${CMAKE_VERSION} - using CMake to uncompress")
endif()