From 29367bd1b0da8c5b8d73f43447277676e89d3905 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Mon, 29 Jul 2024 17:12:39 +0300
Subject: [PATCH] build-compiler-rt: Avoid failing for --build-sanitizer if
 only building for e.g. aarch64

If nothing was built and installed, the installation merging command
fails with an error like this:

    cp: cannot stat '/tmp/tmp.OAj9E7UBhI/install/.': No such file or directory

Therefore, skip this step if nothing really was built and installed.
---
 build-compiler-rt.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/build-compiler-rt.sh b/build-compiler-rt.sh
index 33055ac..6af036f 100755
--- a/build-compiler-rt.sh
+++ b/build-compiler-rt.sh
@@ -130,9 +130,16 @@ for arch in $ARCHS; do
     if [ -n "$SANITIZERS" ]; then
         mv "${WORKDIR}/install/lib/windows/"*.dll "$PREFIX/$arch-w64-mingw32/bin"
     fi
+    INSTALLED=1
     cd ..
 done
 
+if [ -z "$INSTALLED" ]; then
+    # Don't try to move the installed files in place, if nothing was
+    # installed (e.g. if building with --build-sanitizers but not for x86).
+    exit 0
+fi
+
 if [ -h "$CLANG_RESOURCE_DIR/include" ]; then
     # symlink to system headers - skip copy
     rm -rf ${WORKDIR}/install/include