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fixing webgpu lib linkage based on WGPU_PATH

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This commit is contained in:
Marcos Slomp
2026-06-06 12:22:39 -07:00
parent 5597b79f1f
commit cf81651ea1
1 changed files with 28 additions and 1 deletions
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29
examples/webgpu/triangle/CMakeLists.txt
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@@ -29,12 +29,39 @@ project(spinning_triangle LANGUAGES C CXX)
# Dawn → webgpu_dawn
# ---------------------------------------------------------------------------
set(WGPU_PATH "" CACHE PATH "Root of the WebGPU native installation (contains include/ and lib/)")
set(WGPU_LIB "webgpu_dawn" CACHE STRING "WebGPU library name (wgpu_native or webgpu_dawn)")
set(WGPU_LIB "" CACHE STRING "WebGPU library name (wgpu_native or webgpu_dawn); auto-detected if empty")
if(NOT WGPU_PATH)
message(FATAL_ERROR "Set WGPU_PATH to the root of your WebGPU native installation.")
endif()
# When WGPU_PATH changes, discard any previously auto-detected WGPU_LIB so
# detection re-runs against the new path.
if(NOT "${WGPU_PATH}" STREQUAL "${_WGPU_PATH_LAST}" AND _WGPU_LIB_AUTO)
unset(WGPU_LIB CACHE)
set(WGPU_LIB "" CACHE STRING "WebGPU library name (wgpu_native or webgpu_dawn); auto-detected if empty")
endif()
set(_WGPU_PATH_LAST "${WGPU_PATH}" CACHE INTERNAL "")
if(NOT WGPU_LIB)
# Always unset the find_library results so they re-probe the current WGPU_PATH.
unset(_WGPU_NATIVE_LIB CACHE)
unset(_WEBGPU_DAWN_LIB CACHE)
find_library(_WGPU_NATIVE_LIB NAMES wgpu_native wgpu_native.dll PATHS "${WGPU_PATH}/lib" NO_DEFAULT_PATH)
find_library(_WEBGPU_DAWN_LIB NAMES webgpu_dawn PATHS "${WGPU_PATH}/lib" NO_DEFAULT_PATH)
if(_WGPU_NATIVE_LIB)
set(WGPU_LIB "wgpu_native" CACHE STRING "WebGPU library name (wgpu_native or webgpu_dawn); auto-detected if empty" FORCE)
elseif(_WEBGPU_DAWN_LIB)
set(WGPU_LIB "webgpu_dawn" CACHE STRING "WebGPU library name (wgpu_native or webgpu_dawn); auto-detected if empty" FORCE)
else()
message(FATAL_ERROR "Could not detect a WebGPU library in ${WGPU_PATH}/lib. Set WGPU_LIB explicitly (wgpu_native or webgpu_dawn).")
endif()
set(_WGPU_LIB_AUTO TRUE CACHE INTERNAL "")
message(STATUS "WebGPU library auto-detected: ${WGPU_LIB}")
else()
set(_WGPU_LIB_AUTO FALSE CACHE INTERNAL "")
endif()
# ---------------------------------------------------------------------------
# Tracy root — defaults to two directories above this CMakeLists.txt.
# ---------------------------------------------------------------------------