From aa9821bbb9ce1085205eeb01bcfe3529617ed712 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Tue, 29 Jan 2019 12:36:06 +0100
Subject: [PATCH] glibc: fix build with newer bison

Fixes https://github.com/NixOS/nixpkgs/issues/54870
---
 pkgs/development/libraries/glibc/common.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/libraries/glibc/common.nix b/pkgs/development/libraries/glibc/common.nix
index 7e99a0c18d7..d8cc00738a9 100644
--- a/pkgs/development/libraries/glibc/common.nix
+++ b/pkgs/development/libraries/glibc/common.nix
@@ -105,6 +105,9 @@ stdenv.mkDerivation ({
       # nscd needs libgcc, and we don't want it dynamically linked
       # because we don't want it to depend on bootstrap-tools libs.
       echo "LDFLAGS-nscd += -static-libgcc" >> nscd/Makefile
+
+      # bison 3.3 is too strict
+      sed 's/^BISONFLAGS = --yacc /BISONFLAGS = --yacc -Wno-error=yacc /g' -i intl/Makefile
     '';
 
   configureFlags =