Toolchain: Only reextract GCC-related tarballs if patches change

This brings the behaviour in line with Clang, which already does this
since a few revisions.

Toolchain/BuildIt.sh

@@ -239,53 +239,63 @@ pushd "$DIR/Tarballs"
  popd
  fi
 
- if [ -d ${BINUTILS_NAME} ]; then
- rm -rf "${BINUTILS_NAME}"
- rm -rf "$DIR/Build/$ARCH/$BINUTILS_NAME"
- fi
- echo "Extracting binutils..."
- tar -xzf ${BINUTILS_PKG}
-
- pushd ${BINUTILS_NAME}
- if [ "$git_patch" = "1" ]; then
- git init > /dev/null
- git add . > /dev/null
- git commit -am "BASE" > /dev/null
- git am "$DIR"/Patches/binutils/*.patch > /dev/null
- else
- for patch in "$DIR"/Patches/binutils/*.patch; do
- patch -p1 < "$patch" > /dev/null
- done
+ patch_md5="$(${MD5SUM} "${DIR}"/Patches/binutils/*.patch)"
+
+ if [ ! -d "${BINUTILS_NAME}" ] || [ "$(cat ${BINUTILS_NAME}/.patch.applied)" != "${patch_md5}" ]; then
+ if [ -d ${BINUTILS_NAME} ]; then
+ rm -rf "${BINUTILS_NAME}"
+ rm -rf "${DIR}/Build/${ARCH}/${BINUTILS_NAME}"
  fi
- $MD5SUM "$DIR"/Patches/binutils/*.patch > .patch.applied
- popd
+ echo "Extracting binutils..."
+  tar -xzf ${BINUTILS_PKG}
 
- if [ -d ${GCC_NAME} ]; then
- # Drop the previously patched extracted dir
- rm -rf "${GCC_NAME}"
- # Also drop the build dir
- rm -rf "$DIR/Build/$ARCH/$GCC_NAME"
+ pushd ${BINUTILS_NAME}
+ if [ "${git_patch}" = "1" ]; then
+ git init > /dev/null
+ git add . > /dev/null
+ git commit -am "BASE" > /dev/null
+ git am "${DIR}"/Patches/binutils/*.patch > /dev/null
+ else
+ for patch in "${DIR}"/Patches/binutils/*.patch; do
+ patch -p1 < "${patch}" > /dev/null
+ done
+ fi
+ ${MD5SUM} "${DIR}"/Patches/binutils/*.patch > .patch.applied
+ popd
+ else
+ echo "Using existing binutils source directory"
  fi
- echo "Extracting gcc..."
- tar -xzf $GCC_PKG
- pushd $GCC_NAME
- if [ "$git_patch" = "1" ]; then
- git init > /dev/null
- git add . > /dev/null
- git commit -am "BASE" > /dev/null
- git am --keep-non-patch "$DIR"/Patches/gcc/*.patch > /dev/null
- else
- for patch in "$DIR"/Patches/gcc/*.patch; do
- patch -p1 < "$patch" > /dev/null
- done
+
+
+ patch_md5="$(${MD5SUM} "${DIR}"/Patches/gcc/*.patch)"
+
+ if [ ! -d "${GCC_NAME}" ] || [ "$(cat ${GCC_NAME}/.patch.applied)" != "${patch_md5}" ]; then
+ if [ -d ${GCC_NAME} ]; then
+ rm -rf "${GCC_NAME}"
+ rm -rf "${DIR}/Build/${ARCH}/${GCC_NAME}"
  fi
- $MD5SUM "$DIR"/Patches/gcc/*.patch > .patch.applied
- popd
+ echo "Extracting gcc..."
+ tar -xzf ${GCC_PKG}
+
+ pushd ${GCC_NAME}
+ if [ "${git_patch}" = "1" ]; then
+ git init > /dev/null
+ git add . > /dev/null
+ git commit -am "BASE" > /dev/null
+ git am --keep-non-patch "${DIR}"/Patches/gcc/*.patch > /dev/null
+ else
+ for patch in "${DIR}"/Patches/gcc/*.patch; do
+ patch -p1 < "${patch}" > /dev/null
+ done
+ fi
+ ${MD5SUM} "${DIR}"/Patches/gcc/*.patch > .patch.applied
 
- if [ "$SYSTEM_NAME" = "Darwin" ]; then
- pushd "gcc-${GCC_VERSION}"
- ./contrib/download_prerequisites
+  if [ "${SYSTEM_NAME}" = "Darwin" ]; then
+  ./contrib/download_prerequisites
+  fi
  popd
+ else
+ echo "Using existing GCC source directory"
  fi
 popd