On Thu, Aug 14, 2025 at 07:40:17PM -0700, Renato Aguiar wrote:
> When trying to use gRPC library with C++, I got the following link error:
> 
> ld: error: undefined reference: grpc_core::MakeDirectoryReader(std::__1::basic_string_view<char, std::__1::char_traits<char>>)
> >>> referenced by /usr/local/lib/libgrpc.so.3.0 (disallowed by --no-allow-shlib-undefined)
> 
> Here is a patch adding that missing symbol to the gRPC library:

At least libgrpc will need a minor library bump for this.

> 
> --- net/grpc/Makefile
> +++ net/grpc/Makefile
> @@ -5,6 +5,7 @@ COMMENT =	HTTP/2-based RPC framework
>  
>  V =		1.74.1
>  DISTNAME =	grpc-${V}
> +REVISION =	0
>  
>  DIST_TUPLE +=	github grpc grpc v${V} .
>  
> --- /dev/null
> +++ net/grpc/patches/patch-src_core_util_posix_directory_reader_cc
> @@ -0,0 +1,12 @@
> +Index: src/core/util/posix/directory_reader.cc
> +--- src/core/util/posix/directory_reader.cc.orig
> ++++ src/core/util/posix/directory_reader.cc
> +@@ -25,7 +25,7 @@
> + #include "absl/strings/string_view.h"
> + 
> + #if defined(GPR_LINUX) || defined(GPR_ANDROID) || defined(GPR_FREEBSD) || \
> +-    defined(GPR_APPLE) || defined(GPR_NETBSD)
> ++    defined(GPR_APPLE) || defined(GPR_NETBSD) || defined(GPR_OPENBSD)
> + 
> + #include <dirent.h>
> + 
>