Patch OCaml instead of limits.h

release/Dockerfile.in

@@ -4,7 +4,6 @@ FROM multiarch/alpine:%TARGET_TAG%
 LABEL Description="opam release builds" Vendor="OCamlPro" Version="1.0"
 
 RUN apk add gcc g++ make coreutils openssl
-RUN sed -i -e '/ NGROUPS_MAX /s/32/65536/' /usr/include/limits.h
 
 RUN addgroup -S opam && adduser -S opam -G opam -s /bin/sh
 
@@ -15,6 +14,7 @@ RUN tar xzf %OCAMLV%.tar.gz
 WORKDIR ocaml-%OCAMLV%
 RUN sed -i 's/gnueabi/*eabi/' configure
 RUN sed -i 's/musl/musl*/' configure
+RUN sed -i -e 's/NGROUPS_MAX/65536/' otherlibs/unix/getgroups.c
 RUN ./configure %CONF% -prefix /usr/local
 RUN make "-j$(nproc)" && make install && rm -rf /root/ocaml-%OCAMLV% /root/ocaml-%OCAMLV%.tar.gz