use centos 7 for building gnu/linux version

Author: dakyskye

Dockerfile

@@ -1,11 +1,13 @@
-FROM rust:latest
+FROM maddinat0r/centos-samp:latest
 
-WORKDIR /pawn-env
-
-COPY . .
+RUN sh -c "$(curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs)" -- -y
 
-RUN apt update; apt install -y gcc-multilib
+RUN cp $HOME/.cargo/bin/* /usr/bin/
 
 RUN rustup install stable-i686-unknown-linux-gnu
 
+WORKDIR /pawn-env
+
+COPY . .
+
 ENTRYPOINT [ "make", "build" ]