Build the Go toolchain before applying patches

This allows us to use this version of the toolchain to run the
`go mod ...` commands, instead of relying on the host toolchain
and having to manipulate the Go module version in the new
toolchain go.mod file.

scripts/create-secondary-patch.sh

@@ -37,8 +37,8 @@ replace="${1}"
 if [ -n "${replace}" ]; then
     echo "replace github.com/golang-fips/openssl-fips => ${replace}" >> go.mod
 fi
-go mod tidy
-go mod vendor
+../bin/go mod tidy
+../bin/go mod vendor
 
 # Generate the final patch.
 git add .

scripts/setup-initial-patch.sh

@@ -38,6 +38,12 @@ shift $((OPTIND-1))
 cd ./go
 ORIGINAL_GIT_SHA=$(git rev-parse HEAD)
 
+# Build the Go toolchain before applying patches. This allows us to use this toolchain in later steps
+# when running `go mod` commands.
+pushd ./src
+./make.bash
+popd
+
 "${ROOT}"/scripts/apply-initial-patch.sh
 "${ROOT}"/scripts/create-secondary-patch.sh "${replacement}"