--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/libedit/clang.patch	Tue Apr 02 20:01:00 2019 +0200
@@ -0,0 +1,27 @@
+--- src/chartype.h.orig	2019-04-02 14:07:48.072839008 +0200
++++ src/chartype.h	2019-04-02 14:08:17.924144370 +0200
+@@ -29,24 +29,6 @@
+ #ifndef _h_chartype_f
+ #define _h_chartype_f
+ 
+-/* Ideally we should also test the value of the define to see if it
+- * supports non-BMP code points without requiring UTF-16, but nothing
+- * seems to actually advertise this properly, despite Unicode 3.1 having
+- * been around since 2001... */
+-#if	!defined(__NetBSD__) && \
+-	!defined(__sun) && \
+-	!(defined(__APPLE__) && defined(__MACH__)) && \
+-	!defined(__OpenBSD__) && \
+-	!defined(__FreeBSD__) && \
+-	!defined(__DragonFly__)
+-#ifndef __STDC_ISO_10646__
+-/* In many places it is assumed that the first 127 code points are ASCII
+- * compatible, so ensure wchar_t indeed does ISO 10646 and not some other
+- * funky encoding that could break us in weird and wonderful ways. */
+-	#error wchar_t must store ISO 10646 characters
+-#endif
+-#endif
+-
+ /* Oh for a <uchar.h> with char32_t and __STDC_UTF_32__ in it...
+  * ref: ISO/IEC DTR 19769
+  */