From 7b58739e2c193b984d1352041863d2f3935694d7 Mon Sep 17 00:00:00 2001
From: Matthew Bauer <mjbauer95@gmail.com>
Date: Fri, 20 Sep 2019 22:37:00 -0400
Subject: [PATCH] gcc: fix mising avr limits.h

Fixes #69172
---
 pkgs/development/compilers/gcc/8/default.nix | 7 ++++++-
 pkgs/development/compilers/gcc/9/default.nix | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/compilers/gcc/8/default.nix b/pkgs/development/compilers/gcc/8/default.nix
index 129ca72251f..e25c7b6016a 100644
--- a/pkgs/development/compilers/gcc/8/default.nix
+++ b/pkgs/development/compilers/gcc/8/default.nix
@@ -186,7 +186,12 @@ stdenv.mkDerivation ({
             sed -i gcc/config/linux.h -e '1i#undef LOCAL_INCLUDE_DIR'
         ''
         )
-    else "");
+    else "")
+      + stdenv.lib.optionalString targetPlatform.isAvr ''
+	        makeFlagsArray+=(
+	           'LIMITS_H_TEST=false'
+	        )
+	      '';
 
   inherit noSysDirs staticCompiler crossStageStatic
     libcCross crossMingw;
diff --git a/pkgs/development/compilers/gcc/9/default.nix b/pkgs/development/compilers/gcc/9/default.nix
index 506cfee7f49..de4d893b99e 100644
--- a/pkgs/development/compilers/gcc/9/default.nix
+++ b/pkgs/development/compilers/gcc/9/default.nix
@@ -185,7 +185,12 @@ stdenv.mkDerivation ({
             sed -i gcc/config/linux.h -e '1i#undef LOCAL_INCLUDE_DIR'
         ''
         )
-    else "");
+    else "")
+      + stdenv.lib.optionalString targetPlatform.isAvr ''
+	        makeFlagsArray+=(
+	           'LIMITS_H_TEST=false'
+	        )
+	      '';
 
   inherit noSysDirs staticCompiler crossStageStatic
     libcCross crossMingw;