From f05407d2926035071787b9197123b0abc8dba983 Mon Sep 17 00:00:00 2001
From: Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
Date: Mon, 16 May 2016 18:59:47 -0500
Subject: [PATCH] [libpng17] Check for CLOCK_PROCESS_CPUTIME_ID in
 /contrib/libtests/timepng.

Otherwise it does not build on platforms that don't supply clock_gettime().
---
 ANNOUNCE                   | 6 ++++--
 CHANGES                    | 4 +++-
 contrib/libtests/timepng.c | 6 ++++--
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/ANNOUNCE b/ANNOUNCE
index 9835e1a71..a1dd7365d 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.7.0beta81 - May 7, 2016
+Libpng 1.7.0beta81 - May 16, 2016
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -1290,7 +1290,9 @@ Version 1.7.0beta80 [May 6, 2016]
       unreachable code in pz_default_settings and eliminated a spurious
       warning in pngcp for small files.
 
-Version 1.7.0beta81 [May 7, 2016]
+Version 1.7.0beta81 [May 16, 2016]
+  Check for CLOCK_PROCESS_CPUTIME_ID when building /contrib/libtests/timepng.
+    Otherwise it does not build on platforms that don't supply clock_gettime().
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/CHANGES b/CHANGES
index 0243921d2..c9b83da0c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5590,7 +5590,9 @@ Version 1.7.0beta80 [May 6, 2016]
       unreachable code in pz_default_settings and eliminated a spurious
       warning in pngcp for small files.
 
-Version 1.7.0beta81 [May 7, 2016]
+Version 1.7.0beta81 [May 16, 2016]
+  Check for CLOCK_PROCESS_CPUTIME_ID when building /contrib/libtests/timepng.
+    Otherwise it does not build on platforms that don't supply clock_gettime().
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/contrib/libtests/timepng.c b/contrib/libtests/timepng.c
index 4073ab6ef..2c685e15d 100644
--- a/contrib/libtests/timepng.c
+++ b/contrib/libtests/timepng.c
@@ -44,8 +44,10 @@
 #  define voidcast(type, value) (value)
 #endif /* __cplusplus */
 
-#if ((defined(PNG_SEQUENTIAL_READ_SUPPORTED)) && defined(PNG_STDIO_SUPPORTED)\
-     && defined(PNG_EASY_ACCESS_SUPPORTED) && defined(PNG_INFO_IMAGE_SUPPORTED))
+#if (defined (CLOCK_PROCESS_CPUTIME_ID) &&
+     defined (PNG_SEQUENTIAL_READ_SUPPORTED) && defined(PNG_STDIO_SUPPORTED)\
+     && defined(PNG_EASY_ACCESS_SUPPORTED) && defined(PNG_INFO_IMAGE_SUPPORTED)
+
 typedef struct
 {
    FILE *input;