[hackers] [st] Add an error for XftFontOpenPattern failure. || Gary Allen Vollink

[git]

commit b1338e91ed632adbcd08388de37e46cf25326e01
Author:     Gary Allen Vollink <g...@vollink.com>
AuthorDate: Thu Sep 14 15:30:02 2017 -0400
Commit:     Hiltjo Posthuma <hil...@codemadness.org>
CommitDate: Fri Sep 15 11:27:13 2017 +0200

    Add an error for XftFontOpenPattern failure.

diff --git a/x.c b/x.c
index fbfd350..191e5dc 100644
--- a/x.c
+++ b/x.c
@@ -1092,6 +1092,9 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph 
*glyphs, int len, int x
 
                        frc[frclen].font = XftFontOpenPattern(xw.dpy,
                                        fontpattern);
+                       if (!frc[frclen].font)
+                               die("XftFontOpenPattern failed seeking fallback 
font: %s\n",
+                                       strerror(errno));
                        frc[frclen].flags = frcflags;
                        frc[frclen].unicodep = rune;