From 1d91b2619d221fca004e9595438e4508569b91cf Mon Sep 17 00:00:00 2001
From: Stefano Pigozzi <me@steffo.eu>
Date: Sun, 19 Mar 2023 22:13:39 +0100
Subject: [PATCH] Fix compilation where BUILD = TARGET platform

---
 Dockerfile | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index ec700d4..046fbc2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,17 +21,19 @@ RUN \
     mkdir .cargo && \
     echo '[net]' >> .cargo/config.toml && \
     echo 'git-fetch-with-cli = true' >> .cargo/config.toml && \
-    if [ "${TARGETPLATFORM}" = "linux/amd64" ]; then \
-        echo '[target.x86_64-unknown-linux-gnu]' >> .cargo/config.toml; \
-        echo 'linker = "x86-64-linux-gnu-gcc"' >> .cargo/config.toml; \
-    fi && \
-    if [ "${TARGETPLATFORM}" = "linux/arm64" ]; then \
-        echo '[target.aarch64-unknown-linux-gnu]' >> .cargo/config.toml; \
-        echo 'linker = "aarch64-linux-gnu-gcc"' >> .cargo/config.toml; \
-    fi && \
-    if [ "${TARGETPLATFORM}" = "linux/arm/v7" ]; then \
-        echo '[target.armv7-unknown-linux-gnueabihf]' >> .cargo/config.toml; \
-        echo 'linker = "arm-linux-gnueabihf-gcc"' >> .cargo/config.toml; \
+    if [ "${BUILDPLATFORM}" != "${TARGETPLATFORM}" ]; then \
+        if [ "${TARGETPLATFORM}" = "linux/amd64" ]; then \
+            echo '[target.x86_64-unknown-linux-gnu]' >> .cargo/config.toml; \
+            echo 'linker = "x86-64-linux-gnu-gcc"' >> .cargo/config.toml; \
+        fi && \
+        if [ "${TARGETPLATFORM}" = "linux/arm64" ]; then \
+            echo '[target.aarch64-unknown-linux-gnu]' >> .cargo/config.toml; \
+            echo 'linker = "aarch64-linux-gnu-gcc"' >> .cargo/config.toml; \
+        fi && \
+        if [ "${TARGETPLATFORM}" = "linux/arm/v7" ]; then \
+            echo '[target.armv7-unknown-linux-gnueabihf]' >> .cargo/config.toml; \
+            echo 'linker = "arm-linux-gnueabihf-gcc"' >> .cargo/config.toml; \
+        fi \
     fi
 
 RUN rustup target add ${RUSTTARGET}