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cmake: fallback to pkgconfig if the zstd cmake config is missing #158

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Merged
rtissera merged 1 commit into from
May 3, 2026
Merged

cmake: fallback to pkgconfig if the zstd cmake config is missing #158

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10 changes: 4 additions & 6 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,8 @@ if(BUILD_FUZZER)
set(BUILD_SHARED_LIBS OFF)
endif()

list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")

include(GNUInstallDirs)

#--------------------------------------------------
Expand All @@ -55,12 +57,8 @@ endif()

# zstd
if (WITH_SYSTEM_ZSTD)
find_package(zstd REQUIRED)
if(TARGET zstd::libzstd_shared)
list(APPEND PLATFORM_LIBS zstd::libzstd_shared)
else()
list(APPEND PLATFORM_LIBS zstd::libzstd_static)
endif()
find_package(zstd MODULE REQUIRED)
list(APPEND PLATFORM_LIBS zstd::zstd)
list(APPEND CHDR_DEFINES CHDR_SYSTEM_ZSTD)
else()
if(NOT TARGET zstd)
Expand Down
33 changes: 33 additions & 0 deletions cmake/Findzstd.cmake
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Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
# SPDX-FileCopyrightText: 2022 Andrea Pappacoda <andrea@pappacoda.it>
# SPDX-License-Identifier: ISC

include(FindPackageHandleStandardArgs)

find_package(zstd CONFIG)
if (zstd_FOUND)
# Use upstream zstdConfig.cmake if possible
if (NOT TARGET zstd::zstd)
if (TARGET zstd::libzstd_static)
add_library(zstd::zstd ALIAS zstd::libzstd_static)
elseif (TARGET zstd::libzstd_shared)
add_library(zstd::zstd ALIAS zstd::libzstd_shared)
endif()
endif()
find_package_handle_standard_args(zstd CONFIG_MODE)
else()
# Fallback to pkg-config otherwise
find_package(PkgConfig)
if (PKG_CONFIG_FOUND)
pkg_search_module(libzstd IMPORTED_TARGET GLOBAL libzstd)
if (libzstd_FOUND)
add_library(zstd::zstd ALIAS PkgConfig::libzstd)
endif()
endif()

find_package_handle_standard_args(zstd
REQUIRED_VARS
libzstd_LINK_LIBRARIES
libzstd_FOUND
VERSION_VAR libzstd_VERSION
)
endif()