diff --git a/ANNOUNCE b/ANNOUNCE
index 16f21db..be3d323 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -135,12 +135,13 @@
     as in libpng-1.5.4.
   Put CRLF line endings in the owatcom project files.
   Fixed minor memset/sizeof errors in pngvalid.c.
-  Fixed race conditions in parallel make builds. With higher degress of
+  Fixed race conditions in parallel make builds. With higher degrees of
     parallelism during 'make' the use of the same temporary file names such
     as 'dfn*' can result in a race where a temporary file from one arm of the
     build is deleted or overwritten in another arm.  This changes the
     temporary files for suffix rules to always use $* and ensures that the
     non-suffix rules use unique file names.
+  Updated CMakeLists.txt to account for relocated and new test programs.
 
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diff --git a/CHANGES b/CHANGES
index 3f5ef31..546780b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3780,12 +3780,14 @@
     as in libpng-1.5.4.
   Put CRLF line endings in the owatcom project files.
   Fixed minor memset/sizeof errors in pngvalid.c.
-  Fixed race conditions in parallel make builds. With higher degress of
+  Fixed race conditions in parallel make builds. With higher degrees of
     parallelism during 'make' the use of the same temporary file names such
     as 'dfn*' can result in a race where a temporary file from one arm of the
     build is deleted or overwritten in another arm.  This changes the
     temporary files for suffix rules to always use $* and ensures that the
     non-suffix rules use unique file names.
+  Updated CMakeLists.txt to account for relocated and new test programs.
+
 
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 (subscription required; visit
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d53f804..08c90c3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -121,7 +121,10 @@
   pngtest.c
 )
 set(pngvalid_sources
-  pngvalid.c
+  contrib/libtests/pngvalid.c
+)
+set(pngstest_sources
+  contrib/libtests/pngstest.c
 )
 # SOME NEEDED DEFINITIONS
 
@@ -172,6 +175,38 @@
   add_executable(pngvalid ${pngvalid_sources})
   target_link_libraries(pngvalid ${PNG_LIB_NAME})
   add_test(pngvalid ./pngvalid)
+  add_executable(pngstest ${pngstest_sources})
+  target_link_libraries(pngstest ${PNG_LIB_NAME})
+  add_test(pngstest ./pngstest
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g01.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g02.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g04.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g16.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn2c08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn2c16.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p01.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p02.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p04.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn4a08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn4a16.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn6a08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn6a16.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn1g04.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn2c16.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn3p08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbgn2c16.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbgn3p08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbrn2c08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbwn1g16.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbwn3p08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbyn3p08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n1g08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n2c08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n3p08.png
+    ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp1n3p08.png
+  )
 endif()
 
 # Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set