From d214b07883a626f3ecebb027797e8bb994e174a4 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 15 May 2019 19:07:39 -0700
Subject: [PATCH] Fix clang build

Ugh.

In file included from hb-ot-face.cc:41:
./hb-ot-layout-gsub-table.hh:293:7: error: template parameter redefines default argument
         hb_requires (hb_is_sorted_source_of (Iterator,
         ^
./hb-meta.hh:59:27: note: expanded from macro 'hb_requires'
 define hb_requires(Cond) hb_enable_if((Cond))
                          ^
./hb-meta.hh:57:67: note: expanded from macro 'hb_enable_if'
 define hb_enable_if(Cond) typename hb_enable_if<(Cond)>::type* = nullptr
                                                                  ^
./hb-ot-layout-gsub-table.hh:40:5: note: previous default template argument defined here
    hb_requires (hb_is_sorted_source_of (Iterator,
    ^
./hb-meta.hh:59:27: note: expanded from macro 'hb_requires'
 define hb_requires(Cond) hb_enable_if((Cond))
                          ^
./hb-meta.hh:57:67: note: expanded from macro 'hb_enable_if'
 define hb_enable_if(Cond) typename hb_enable_if<(Cond)>::type* = nullptr
                                                                  ^
---
 src/hb-ot-layout-gsub-table.hh | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/hb-ot-layout-gsub-table.hh b/src/hb-ot-layout-gsub-table.hh
index 25656c951..15cd44904 100644
--- a/src/hb-ot-layout-gsub-table.hh
+++ b/src/hb-ot-layout-gsub-table.hh
@@ -36,9 +36,7 @@ namespace OT {
 
 typedef hb_pair_t<hb_codepoint_t, hb_codepoint_t> hb_codepoint_pair_t;
 
-template<typename Iterator,
-	 hb_requires (hb_is_sorted_source_of (Iterator,
-					      const hb_codepoint_pair_t))>
+template<typename Iterator>
 static inline void SingleSubst_serialize (hb_serialize_context_t *c,
 					  Iterator it);