From ed01f5bd6d9454d389279322e909791c005bc513 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sat, 21 May 2022 11:19:42 +0100
Subject: [PATCH] jpeg-archive: add -fcommon workaround

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

    ld: src/util.o:(.bss+0x0): multiple definition of `progname'; /build/ccBZT2Za.o:(.bss+0x20): first defined here
---
 pkgs/applications/graphics/jpeg-archive/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/applications/graphics/jpeg-archive/default.nix b/pkgs/applications/graphics/jpeg-archive/default.nix
index b974e271a675..bd4a580cc462 100644
--- a/pkgs/applications/graphics/jpeg-archive/default.nix
+++ b/pkgs/applications/graphics/jpeg-archive/default.nix
@@ -21,6 +21,12 @@ stdenv.mkDerivation {
     substituteInPlace Makefile --replace 'LIBJPEG =' 'LIBJPEG ?='
   '';
 
+  # Workaround build failure on -fno-common toolchains like upstream
+  # gcc-10. Otherwise build fails as:
+  #   ld: src/util.o:(.bss+0x0): multiple definition of `progname'; /build/ccBZT2Za.o:(.bss+0x20): first defined here
+  # https://github.com/danielgtaylor/jpeg-archive/issues/119
+  NIX_CFLAGS_COMPILE = "-fcommon";
+
   makeFlags = [
     "CC=${stdenv.cc.targetPrefix}cc"
     "PREFIX=$(out)"