build: Set LLVM_BUILD_STATIC/CLANG_BUILD_STATIC when linking statically.

This is needed since LLVM 20, particularly for Windows.
2025-04-08 23:11:32 +02:00
parent 7733b5dbe6
commit 1bfc71d4da
2 changed files with 10 additions and 0 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -698,6 +698,13 @@ add_library(zigcpp STATIC ${ZIG_CPP_SOURCES})
 target_compile_features(zigcpp PRIVATE cxx_std_17)
 set_target_properties(zigcpp PROPERTIES POSITION_INDEPENDENT_CODE ${ZIG_PIE})

+if(LLVM_LINK_MODE STREQUAL "static")
+  target_compile_definitions(zigcpp PRIVATE
+    LLVM_BUILD_STATIC
+    CLANG_BUILD_STATIC
+  )
+endif()
+
 if(NOT MSVC)
  if(MINGW)
    target_compile_options(zigcpp PRIVATE -Wno-format)