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ifcviewer: support linking system-packaged wgpu-native and zstd

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Add a WGPU_NATIVE_USE_SYSTEM option that resolves wgpu-native via
pkg-config instead of FetchContent-ing upstream's prebuilt binary
release, for distros (e.g. Fedora) that ship it as a system package.
Also fall back to pkg-config for zstd when the CONFIG package isn't
available, and skip the wgpu-native runtime install step when the
system package already owns it.
This commit is contained in:
Bruno Postle
2026-08-19 22:06:43 +01:00
parent 973f61c6dc
commit 5d0f9bb9fa
1 changed files with 27 additions and 7 deletions
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src/ifcviewer/CMakeLists.txt
+27 -7
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@@ -32,13 +32,21 @@ endif()
# everywhere a 4x4 transform shows up. Header-only, works under Emscripten.
find_package(Eigen3 REQUIRED)
# wgpu-native — fetched as a pre-built binary release from upstream.
# Under Emscripten this whole block is skipped; the web build links
# against Dawn's webgpu.h via the emdawnwebgpu port instead. The
# wgpu-native — fetched as a pre-built binary release from upstream, or
# taken from a system package via pkg-config when WGPU_NATIVE_USE_SYSTEM
# is set. Under Emscripten this whole block is skipped; the web build
# links against Dawn's webgpu.h via the emdawnwebgpu port instead. The
# `wgpu_native` link target is created as an INTERFACE in that branch
# (see the end of this block) so consumers' target_link_libraries lines
# work uniformly.
if(NOT EMSCRIPTEN)
option(WGPU_NATIVE_USE_SYSTEM "Link against a system-packaged wgpu-native instead of FetchContent-ing upstream's prebuilt binary release" OFF)
if(NOT EMSCRIPTEN AND WGPU_NATIVE_USE_SYSTEM)
find_package(PkgConfig REQUIRED)
pkg_check_modules(WGPU_NATIVE REQUIRED IMPORTED_TARGET wgpu-native)
add_library(wgpu_native ALIAS PkgConfig::WGPU_NATIVE)
elseif(NOT EMSCRIPTEN)
# Pin the version with WGPU_NATIVE_VERSION; bump to pull a newer release.
set(WGPU_NATIVE_VERSION "v29.0.0.0" CACHE STRING "wgpu-native release tag")
@@ -244,8 +252,15 @@ if(EMSCRIPTEN)
target_sources(IfcViewerCore PRIVATE ${ZSTD_DEC_SRC})
target_include_directories(IfcViewerCore PRIVATE ${ZSTD_DEC_DIR})
else()
find_package(zstd CONFIG REQUIRED)
target_link_libraries(IfcViewerCore PUBLIC zstd::libzstd_static)
find_package(zstd CONFIG QUIET)
if(TARGET zstd::libzstd_static)
target_link_libraries(IfcViewerCore PUBLIC zstd::libzstd_static)
else()
# No zstd CONFIG package on this system — fall back to pkg-config.
find_package(PkgConfig REQUIRED)
pkg_check_modules(ZSTD REQUIRED IMPORTED_TARGET libzstd)
target_link_libraries(IfcViewerCore PUBLIC PkgConfig::ZSTD)
endif()
endif()
install(TARGETS IfcViewerCore EXPORT ${IFCOPENSHELL_EXPORT_TARGETS})
@@ -336,7 +351,12 @@ install(FILES ${IFCVIEWER_H_FILES}
# INSTALL_RPATH is set to @executable_path/../Frameworks — together
# they resolve at launch without depending on macdeployqt to follow
# non-Qt @rpath references.
if(WIN32)
#
# None of this applies with WGPU_NATIVE_USE_SYSTEM: the shared library
# already lives on the system linker path, owned by its own package.
if(WGPU_NATIVE_USE_SYSTEM)
# nothing to install; system package owns libwgpu_native
elseif(WIN32)
install(FILES "${wgpu_native_SOURCE_DIR}/lib/${_wgpu_runtime}" DESTINATION bin)
elseif(APPLE AND BUILD_BONSAIVIEWER)
install(FILES "${wgpu_native_SOURCE_DIR}/lib/${_wgpu_lib}"