Dockerfile: runc: omit libpathrs

Fix issue 4793

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

Author: AkihiroSuda

Dockerfile

@@ -97,7 +97,8 @@ WORKDIR /go/src/github.com/opencontainers/runc
 RUN git-checkout-tag-with-hash.sh ${RUNC_VERSION} && \
   mkdir -p /out
 ENV CGO_ENABLED=1
-RUN GO=xx-go CC=$(xx-info)-gcc STRIP=$(xx-info)-strip make static && \
+# FIXME: avoid omitting libpathrs
+RUN GO=xx-go CC=$(xx-info)-gcc STRIP=$(xx-info)-strip BUILDTAGS="$(grep -oP "^BUILDTAGS := \K.*" Makefile  | sed -e s/libpathrs//)" make static && \
   xx-verify --static runc && cp -v -a runc /out/runc.${TARGETARCH}
 
 FROM build-base AS build-bypass4netns