commit:     583ef0ad484156ebd8b0aa343db59652aa99a5e3
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Sat Jun 28 12:13:33 2025 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Sat Jun 28 12:25:50 2025 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=583ef0ad

llvm-core/clang: Workaround non-native test failures with z3-devel

Apply a workaround to prevent non-native builds from detecting the Z3
development files, in order to skip the relevant tests.  These tests
attempt to compile a shared library using `CMAKE_CXX_COMPILER` passed
down to lit, and they do not respect multilib flags, effectively
causing an ABI mismatch.

Bug: https://github.com/llvm/llvm-project/pull/145731#issuecomment-3015197983
Signed-off-by: Michał Górny <mgorny <AT> gentoo.org>

 llvm-core/clang/clang-21.0.0.9999.ebuild | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/llvm-core/clang/clang-21.0.0.9999.ebuild 
b/llvm-core/clang/clang-21.0.0.9999.ebuild
index 063413a4d610..ec6d5013a836 100644
--- a/llvm-core/clang/clang-21.0.0.9999.ebuild
+++ b/llvm-core/clang/clang-21.0.0.9999.ebuild
@@ -318,6 +318,15 @@ multilib_src_configure() {
                mycmakeargs+=(
                        -DCLANG_INCLUDE_DOCS=${build_docs}
                )
+       else
+               # A few tests compile a native z3 LD_PRELOAD library that does
+               # not respect multilib flags.  Apply a hack to skip these tests
+               # for the time being.
+               # 
https://github.com/llvm/llvm-project/pull/145731#issuecomment-3015197983
+               mycmakeargs+=(
+                       -DZ3_INCLUDE_DIR=/dev/null
+                       -DZ3_LIBRARIES=/dev/null
+               )
        fi
        if multilib_native_use extra; then
                mycmakeargs+=(

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