qt5base-lts/cmake/FindWrapZSTD.cmake
Alexandru Croitor d59628881e CMake: Fix confusing FPHSA zstd version warning message
Previously if zstd was not found, one would see such a warning message

 Could NOT find WrapZSTD: Found unsuitable version "", but required is
 at least "1.3" (found ZSTD_LIBRARY-NOTFOUND)

This is because PC_ZSTD_VERSION was a defined variable with an empty
value, which makes FPHSA believe that a version was extracted from
somewhere.

Avoid passing that value directly.

Now the warning message is

 Could NOT find WrapZSTD (missing: ZSTD_LIBRARIES ZSTD_INCLUDE_DIRS)
 (Required is at least version "1.3")

Pick-to: 6.2 6.3 6.4
Change-Id: I88760d94db0d869d328085996298f4aaa88bc6c2
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2022-07-02 00:11:12 +02:00

89 lines
2.9 KiB
CMake

#.rst:
# FindZstd
# ---------
#
# Try to locate the Zstd library.
# If found, this will define the following variables:
#
# ``WrapZSTD_FOUND``
# True if the zstd library is available
# ``ZSTD_INCLUDE_DIRS``
# The zstd include directories
# ``ZSTD_LIBRARIES``
# The zstd libraries for linking
#
# If ``WrapZSTD_FOUND`` is TRUE, it will also define the following
# imported target:
#
# ``WrapZSTD::WrapZSTD``
# The zstd library
find_package(zstd CONFIG QUIET)
include(FindPackageHandleStandardArgs)
if(TARGET zstd::libzstd_static OR TARGET zstd::libzstd_shared)
find_package_handle_standard_args(WrapZSTD
REQUIRED_VARS zstd_VERSION VERSION_VAR zstd_VERSION)
if(TARGET zstd::libzstd_static)
set(zstdtargetsuffix "_static")
else()
set(zstdtargetsuffix "_shared")
endif()
if(NOT TARGET WrapZSTD::WrapZSTD)
add_library(WrapZSTD::WrapZSTD INTERFACE IMPORTED)
set_target_properties(WrapZSTD::WrapZSTD PROPERTIES
INTERFACE_LINK_LIBRARIES "zstd::libzstd${zstdtargetsuffix}")
endif()
else()
find_package(PkgConfig QUIET)
pkg_check_modules(PC_ZSTD QUIET libzstd)
find_path(ZSTD_INCLUDE_DIRS
NAMES zstd.h
HINTS ${PC_ZSTD_INCLUDEDIR}
PATH_SUFFIXES zstd)
find_library(ZSTD_LIBRARY_RELEASE
NAMES zstd zstd_static
HINTS ${PC_ZSTD_LIBDIR}
)
find_library(ZSTD_LIBRARY_DEBUG
NAMES zstdd zstd_staticd zstd zstd_static
HINTS ${PC_ZSTD_LIBDIR}
)
include(SelectLibraryConfigurations)
select_library_configurations(ZSTD)
if(PC_ZSTD_VERSION)
set(WrapZSTD_VERSION "${PC_ZSTD_VERSION}")
endif()
find_package_handle_standard_args(WrapZSTD
REQUIRED_VARS ZSTD_LIBRARIES ZSTD_INCLUDE_DIRS
VERSION_VAR WrapZSTD_VERSION)
if(WrapZSTD_FOUND AND NOT TARGET WrapZSTD::WrapZSTD)
add_library(WrapZSTD::WrapZSTD UNKNOWN IMPORTED)
set_target_properties(WrapZSTD::WrapZSTD PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${ZSTD_INCLUDE_DIRS}")
set_target_properties(WrapZSTD::WrapZSTD PROPERTIES
IMPORTED_LOCATION "${ZSTD_LIBRARY}")
if(ZSTD_LIBRARY_RELEASE)
set_target_properties(WrapZSTD::WrapZSTD PROPERTIES
IMPORTED_LOCATION_RELEASE "${ZSTD_LIBRARY_RELEASE}")
endif()
if(ZSTD_LIBRARY_DEBUG)
set_target_properties(WrapZSTD::WrapZSTD PROPERTIES
IMPORTED_LOCATION_DEBUG "${ZSTD_LIBRARY_DEBUG}")
endif()
endif()
mark_as_advanced(ZSTD_INCLUDE_DIRS ZSTD_LIBRARIES ZSTD_LIBRARY_RELEASE ZSTD_LIBRARY_DEBUG)
endif()
include(FeatureSummary)
set_package_properties(WrapZSTD PROPERTIES
URL "https://github.com/facebook/zstd"
DESCRIPTION "ZSTD compression library")