From e93dc20ed4a4b630855e96a7d05053cfabe85983 Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Fri, 2 Feb 2018 06:50:26 -0600
Subject: [PATCH] icu: xlocale.h fixup needed w/musl as well

---
 pkgs/development/libraries/icu/base.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/icu/base.nix b/pkgs/development/libraries/icu/base.nix
index 6d9a9725cc2..2c8392c8bac 100644
--- a/pkgs/development/libraries/icu/base.nix
+++ b/pkgs/development/libraries/icu/base.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
   '';
 
   # https://sourceware.org/glibc/wiki/Release/2.26#Removal_of_.27xlocale.h.27
-  postPatch = if stdenv ? glibc
+  postPatch = if (stdenv.hostPlatform.libc == "glibc" || stdenv.hostPlatform.libc == "musl")
     then "substituteInPlace i18n/digitlst.cpp --replace '<xlocale.h>' '<locale.h>'"
     else null; # won't find locale_t on darwin