diff --git a/ANNOUNCE b/ANNOUNCE
index 91d3334ba..c06764682 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -186,7 +186,7 @@ version 1.5.0beta19 [April 24, 2010]
   Replaced visualc6 and visualc71 projects with new vstudio project 
 
 version 1.5.0beta20 [April 24, 2010]
-  Changed the overly-restrictive permissions of some files.
+  Relaxed the overly-restrictive permissions of some files.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
 (subscription required; visit
diff --git a/CHANGES b/CHANGES
index 9b10e928c..9ef729f97 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2668,7 +2668,7 @@ version 1.5.0beta19 [April 24, 2010]
   Replaced visualc6 and visualc71 projects with new vstudio project 
 
 version 1.5.0beta20 [April 24, 2010]
-  Changed the overly-restrictive permissions of some files.
+  Relaxed the overly-restrictive permissions of some files.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/libpng.pc.in b/libpng.pc.in
new file mode 100644
index 000000000..3e7e2c58a
--- /dev/null
+++ b/libpng.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
+
+Name: libpng
+Description: Loads and saves PNG files
+Version: @PNGLIB_VERSION@
+Libs: -L${libdir} -lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
+Libs.private: @LIBS@
+Cflags: -I${includedir}
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index 3e7e2c58a..6d7bb210d 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -1,11 +1,10 @@
 prefix=@prefix@
 exec_prefix=@exec_prefix@
 libdir=@libdir@
-includedir=@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
+includedir=@includedir@/libpng15
 
 Name: libpng
 Description: Loads and saves PNG files
-Version: @PNGLIB_VERSION@
-Libs: -L${libdir} -lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
-Libs.private: @LIBS@
+Version: 1.5.0beta20
+Libs: -L${libdir} -lpng15
 Cflags: -I${includedir}