From 24241c7dedf37e4fb0560850849bb1e5cede8adc Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sun, 22 May 2022 11:20:49 +0100
Subject: [PATCH] miranda: add -fcommon workaround

Workaround build failure on -fno-common toolchains like upstream
gcc-10. Otherwise build fails as:

    ld: types.o:(.bss+0x11b0): multiple definition of `current_file'; y.tab.o:(.bss+0x70): first defined here
---
 pkgs/development/compilers/miranda/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/compilers/miranda/default.nix b/pkgs/development/compilers/miranda/default.nix
index 7b29699f151..332f3d83e26 100644
--- a/pkgs/development/compilers/miranda/default.nix
+++ b/pkgs/development/compilers/miranda/default.nix
@@ -52,6 +52,11 @@ stdenv.mkDerivation rec {
     })
   ];
 
+  # Workaround build failure on -fno-common toolchains like upstream
+  # gcc-10. Otherwise build fails as:
+  #   ld: types.o:(.bss+0x11b0): multiple definition of `current_file'; y.tab.o:(.bss+0x70): first defined here
+  NIX_CFLAGS_COMPILE = "-fcommon";
+
   makeFlags = [
     "CC=${stdenv.cc.targetPrefix}cc"
     "CFLAGS=-O2"