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new 0d157dc [CMAKE] Allow threads to be not found for cross compilation
(#397)
0d157dc is described below
commit 0d157dc81551bdf57b26ae9cde62bf37fdc0f8ca
Author: Tianqi Chen <[email protected]>
AuthorDate: Sun Jan 11 14:50:32 2026 -0500
[CMAKE] Allow threads to be not found for cross compilation (#397)
This PR updates the threads linkage to be optional so the library can be
build for cross-compilation targets where threads may not be available.
---
CMakeLists.txt | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8181138..395bd74 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,8 +23,6 @@ option(TVM_FFI_USE_LIBBACKTRACE "Enable libbacktrace" ON)
option(TVM_FFI_USE_EXTRA_CXX_API "Enable extra CXX API in shared lib" ON)
option(TVM_FFI_BACKTRACE_ON_SEGFAULT "Set signal handler to print backtrace on
segfault" ON)
-find_package(Threads REQUIRED)
-
include(${CMAKE_CURRENT_LIST_DIR}/cmake/Utils/DetectTargetTriple.cmake)
if (TVM_FFI_USE_LIBBACKTRACE)
@@ -124,8 +122,13 @@ endif ()
tvm_ffi_add_msvc_flags(tvm_ffi_objs)
tvm_ffi_add_target_from_obj(tvm_ffi tvm_ffi_objs)
-target_link_libraries(tvm_ffi_shared PRIVATE Threads::Threads)
-target_link_libraries(tvm_ffi_static INTERFACE Threads::Threads)
+find_package(Threads)
+if (Threads_FOUND)
+ # link to threads library if found on some cross-compilation platforms, the
threads library maynot
+ # be found but downstream may still be able to build extra alternatives via
source bundle
+ target_link_libraries(tvm_ffi_shared PRIVATE Threads::Threads)
+ target_link_libraries(tvm_ffi_static INTERFACE Threads::Threads)
+endif ()
if (TVM_FFI_USE_EXTRA_CXX_API AND CMAKE_DL_LIBS)
target_link_libraries(tvm_ffi_shared PRIVATE ${CMAKE_DL_LIBS})
