From 4a00872f76feb5abf678da389ec974e04a3344e0 Mon Sep 17 00:00:00 2001
From: "B. Watson" <yalhcru@gmail.com>
Date: Sat, 3 Jun 2017 00:12:57 -0400
Subject: graphics/pngcrush: Fix x86 build.

Signed-off-by: B. Watson <yalhcru@gmail.com>
---
 graphics/pngcrush/pngcrush.SlackBuild | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/graphics/pngcrush/pngcrush.SlackBuild b/graphics/pngcrush/pngcrush.SlackBuild
index 7ce8b7c0b178..623155d4215b 100644
--- a/graphics/pngcrush/pngcrush.SlackBuild
+++ b/graphics/pngcrush/pngcrush.SlackBuild
@@ -23,6 +23,7 @@
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 # Modified by Eugene M., <damagedone at gmx dot com>
+# Modified by B. Watson <yalhcru@gmail.com>, fix x86 build error
 
 PRGNAM=pngcrush
 VERSION=${VERSION:-1.8.11}
@@ -57,6 +58,10 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+# 20170603 bkw: this appears to be the right way to fix bug #75:
+# https://sourceforge.net/p/pmt/bugs/75/
+sed -i '/typedef long ptrdiff_t;/s,long,__PTRDIFF_TYPE__,' zutil.h
+
 make
 install -D -m 0755 pngcrush $PKG/usr/bin/pngcrush
 
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