From ba9513eff457194880a4356ebe4724c3573d6e5a Mon Sep 17 00:00:00 2001
From: Tee KOBAYASHI <xtkoba@gmail.com>
Date: Mon, 27 Dec 2021 17:39:29 +0900
Subject: [PATCH] ldc: Do not use Thumb mode for arm target

---
 packages/ldc/build.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/packages/ldc/build.sh b/packages/ldc/build.sh
index de1a0f65d..bec94e923 100644
--- a/packages/ldc/build.sh
+++ b/packages/ldc/build.sh
@@ -79,6 +79,13 @@ termux_step_host_build() {
 
 # Just before CMake invokation for LLVM:
 termux_step_pre_configure() {
+	if [ "$TERMUX_ARCH" == "arm" ]; then
+		# [...]/ldc/src/llvm/projects/compiler-rt/lib/builtins/clear_cache.c:85:20:
+		# error: write to reserved register 'R7'
+		#   __asm __volatile("svc 0x0"
+		#                    ^
+		CFLAGS="${CFLAGS//-mthumb/}"
+	fi
 	LDFLAGS=" -L$TERMUX_PKG_BUILDDIR/llvm/lib $LDFLAGS -lc++_shared"
 
 	# Don't build compiler-rt sanitizers: