From e38dff02a1ba1aa8c589430664d5a6855550a305 Mon Sep 17 00:00:00 2001
From: Tonis Tiigi <tonistiigi@gmail.com>
Date: Fri, 16 Jul 2021 22:58:26 -0700
Subject: [PATCH] allow setting custom qemu targets

Allows building specific set of emulators instead of all of them.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
---
 Dockerfile                | 2 +-
 scripts/configure_qemu.sh | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index eca6e849..2394b941 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -40,7 +40,7 @@ RUN set -e; \
 
 FROM base AS build
 ARG TARGETPLATFORM
-ARG QEMU_VERSION
+ARG QEMU_VERSION QEMU_TARGETS
 ENV AR=llvm-ar STRIP=llvm-strip
 RUN --mount=target=.,from=src,src=/src/qemu,rw --mount=target=./install-scripts,src=scripts \
   TARGETPLATFORM=${TARGETPLATFORM} configure_qemu.sh && \
diff --git a/scripts/configure_qemu.sh b/scripts/configure_qemu.sh
index 80843de7..39a8e609 100755
--- a/scripts/configure_qemu.sh
+++ b/scripts/configure_qemu.sh
@@ -4,8 +4,10 @@ set -e
 
 : ${QEMU_TARGETS=}
 
+
 arch="$(xx-info arch)"
 
+if [ -z "$QEMU_TARGETS" ]; then
 if [ "$arch" != "amd64" ]; then
     QEMU_TARGETS="$QEMU_TARGETS x86_64-linux-user"
 fi
@@ -33,6 +35,7 @@ fi
 if [ "$arch" != "mips64" ] ; then
     QEMU_TARGETS="$QEMU_TARGETS mips64-linux-user"
 fi
+fi
 
 set -x
 ./configure \