gcc: Use prebuilts from alpine repo to reduce compile time

Signed-off-by: PeroSar <perosar1111@gmail.com>

.drone.yml

@@ -11,7 +11,7 @@ steps:
   - name: build
     image: alpine:latest
     commands:
-    - apk add gcc g++ texinfo make curl xz bash patch
+    - apk add gcc g++ texinfo make curl xz bash patch isl-dev gmp-dev mpfr-dev libgomp mpc1-dev
     - bash emerald-binutils.sh
     - bash emerald-sysroot.sh
     - bash emerald-gcc.sh

emerald-gcc.sh

@@ -24,8 +24,6 @@ cd "$EMERALD_BUILD_DIR"/gcc-"$GCC_VER"
 # Apply patches
 find "$EMERALD_SCRIPT_DIR"/patches/gcc/"$GCC_VER" -type f -name '*.patch' -exec patch -p0 -i {} \;
 
-./contrib/download_prerequisites
-
 # Its suggested to run configure from a seperate directory
 mkdir -vp build && cd "$_"