Switch to new download format and fix sigabrt error

source.sh

@@ -2,16 +2,6 @@
 # BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
 # BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT
 
-DOWNLOAD="https://github.com/golang/tools/archive/refs/tags/gopls/v${BPM_PKG_VERSION}.tar.gz"
-FILENAME="${DOWNLOAD##*/}"
-
-# The prepare function is executed in the root of the temp directory
-# This function is used for downloading files and putting them into the correct location
-prepare() {
-  wget "$DOWNLOAD"
-  tar -xvf "$FILENAME" --strip-components=1 -C "$BPM_SOURCE"
-}
-
 # The build function is executed in the source directory
 # This function is used to compile the source code
 build() {
@@ -21,10 +11,10 @@ build() {
   export CGO_CPPFLAGS="$CPPFLAGS"
   export CGO_CFLAGS="$CFLAGS"
   export CGO_CXXFLAGS="$CXXFLAGS"
-  export GOPATH="$BPM_SOURCE"
+  export GOPATH="$BPM_WORKDIR"
 
   go build -v -mod=readonly -modcacherw \
-      -ldflags "-compressdwarf=false -linkmode external -extldflags ${LDFLAGS}" \
+      -ldflags "-compressdwarf=false -linkmode external -extldflags \"${LDFLAGS}\"" \
       -o gopls
 }