From 629d011ceaefad633c0254d8e17e2640fda2e542 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Mon, 10 Dec 2018 22:56:30 +0000
Subject: [PATCH] geoip: fix cross-build

---
 pkgs/development/libraries/geoip/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/libraries/geoip/default.nix b/pkgs/development/libraries/geoip/default.nix
index cb8138dc115..1b1f7373709 100644
--- a/pkgs/development/libraries/geoip/default.nix
+++ b/pkgs/development/libraries/geoip/default.nix
@@ -17,6 +17,11 @@ in stdenv.mkDerivation {
 
   nativeBuildInputs = [ autoreconfHook ];
 
+  configureFlags = stdenv.lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+    "ac_cv_func_malloc_0_nonnull=yes"
+    "ac_cv_func_realloc_0_nonnull=yes"
+  ];
+
   postConfigure = ''
     find . -name Makefile.in -exec sed -i -r 's#^pkgdatadir\s*=.+$#pkgdatadir = ${dataDir}#' {} \;
   '';