Revert "Drop building libgc on Linux" (#304)

Author: straight-shoota

linux/Dockerfile

@@ -1,3 +1,23 @@
+FROM debian:11 AS debian
+
+RUN apt-get update \
+ && apt-get install -y build-essential libevent-dev libpcre2-dev automake libtool pkg-config git curl llvm-13 clang-13 \
+ && (pkg-config || true)
+
+ARG release
+ENV CFLAGS="-fPIC -pipe ${release:+-O2}"
+ENV CC="clang-13"
+
+# Build libgc
+ARG gc_version
+
+RUN git clone https://github.com/ivmai/bdwgc \
+ && cd bdwgc \
+ && git checkout ${gc_version} \
+ && ./autogen.sh \
+ && ./configure --disable-debug --disable-shared --enable-large-config \
+ && make -j$(nproc)
+
 FROM alpine:3.17
 
 # Install dependencies
@@ -55,10 +75,15 @@ RUN git clone https://github.com/crystal-lang/shards \
  \
  && ([ "$(ldd bin/shards 2>&1 | wc -l)" -eq "1" ] || { echo 'shards is not statically linked'; ldd bin/shards; exit 1; })
 
+COPY --from=debian /bdwgc/.libs/libgc.a /libgc-debian.a
+
 ARG package_iteration
 
 RUN \
+ # Copy libgc.a to /lib/crystal/
  mkdir -p /output/lib/crystal/ \
+ && cp /libgc-debian.a /output/lib/crystal/libgc.a \
+ \
  # Install crystal
  && make -C /crystal install DESTDIR=/output PREFIX= \
  \

linux/bundled.dockerfile

@@ -5,16 +5,6 @@ RUN apt-get update \
 
 ENV CFLAGS="-fPIC -pipe ${release:+-O2}"
 
-# Build libgc
-FROM debian AS bdwgc
-ARG gc_version
-RUN curl -L https://github.com/ivmai/bdwgc/archive/refs/tags/${gc_version}.tar.gz | tar -zx \
- && mv bdwgc-* bdwgc-${gc_version} \
- && cd bdwgc-${gc_version} \
- && ./autogen.sh \
- && ./configure --disable-debug --disable-shared --enable-large-config \
- && make -j$(nproc)
-
 # build libpcre2
 FROM debian AS libpcre2
 ARG libpcre2_version
@@ -37,14 +27,12 @@ RUN git clone https://github.com/libevent/libevent \
 FROM debian
 ARG crystal_version
 ARG package_iteration
-ARG gc_version
 ARG libpcre2_version
 ARG libevent_version
 
 RUN mkdir -p /output/lib/crystal/lib/
 
 # Copy libraries
-COPY --from=bdwgc bdwgc-${gc_version}/.libs/libgc.a /output/lib/crystal/
 COPY --from=libpcre2 pcre2-${libpcre2_version}/.libs/libpcre2-8.a /output/lib/crystal/
 COPY --from=libevent libevent/.libs/libevent.a libevent/.libs/libevent_pthreads.a /output/lib/crystal/