Upstream: https://github.com/numba/llvmlite/commit/9a6edb48ba70 (after 0.49.0) LLVM_DEFINITIONS is one space-separated string. When it starts with a NAME=VALUE define, as it does on musl (-D_GLIBCXX_USE_CXX11_ABI=1 ...), add_definitions() turns the whole string into that single macro and libstdc++'s #if on it fails with "token = is not valid". From 9a6edb48ba70e9864676aa468dc22aaff702d8d6 Mon Sep 17 00:00:00 2001 From: Leon White Date: Wed, 2 Sep 2026 17:32:27 +0200 Subject: [PATCH] fix: : error: token '=' is not valid in preprocessor expressions --- ffi/CMakeLists.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/ffi/CMakeLists.txt b/ffi/CMakeLists.txt index 4025f4f36..c711aef83 100755 --- a/ffi/CMakeLists.txt +++ b/ffi/CMakeLists.txt @@ -52,7 +52,8 @@ else() endif() include_directories(${LLVM_INCLUDE_DIRS}) -add_definitions(${LLVM_DEFINITIONS}) +separate_arguments(LLVM_DEFINITIONS_LIST NATIVE_COMMAND "${LLVM_DEFINITIONS}") +add_definitions(${LLVM_DEFINITIONS_LIST}) # Check for presence of the SVML patch in the LLVM build set(CMAKE_REQUIRED_INCLUDES ${LLVM_INCLUDE_DIRS})