diff --git a/ANNOUNCE b/ANNOUNCE
index 4539b30c6..a7b284bd2 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -63,6 +63,8 @@ version 1.5.0alpha01 [December 25, 2009]
     (revising the change in 1.4.0beta99)
   Swapped PNG_UNKNOWN_CHUNKS_SUPPORTED and PNG_HANDLE_AS_UNKNOWN_SUPPORTED
     in pngset.c to be consistent with other changes in version 1.2.38.
+  Changed "libpng-pc.in" to "libpng.pc.in" in configure.ac, configure, and
+    Makefile.in to be consistent with changes in libpng-1.4.0rc03
 
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diff --git a/CHANGES b/CHANGES
index a3517e754..27b9aa759 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2445,6 +2445,8 @@ version 1.5.0alpha01 [December 25, 2009]
     (revising the change in 1.4.0beta99)
   Swapped PNG_UNKNOWN_CHUNKS_SUPPORTED and PNG_HANDLE_AS_UNKNOWN_SUPPORTED
     in pngset.c to be consistent with other changes in version 1.2.38.
+  Changed "libpng-pc.in" to "libpng.pc.in" in configure.ac, configure, and
+    Makefile.in to be consistent with changes in libpng-1.4.0rc03
 
 
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diff --git a/Makefile.in b/Makefile.in
index 865ff7117..651645f01 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -53,7 +53,7 @@ subdir = .
 DIST_COMMON = README $(am__configure_deps) $(dist_man_MANS) \
 	$(pkginclude_HEADERS) $(srcdir)/Makefile.am \
 	$(srcdir)/Makefile.in $(srcdir)/config.h.in \
-	$(srcdir)/libpng-config.in $(srcdir)/libpng-pc.in \
+	$(srcdir)/libpng-config.in $(srcdir)/libpng.pc.in \
 	$(top_srcdir)/configure INSTALL TODO config.guess config.sub \
 	depcomp install-sh ltmain.sh missing mkinstalldirs
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
@@ -393,7 +393,7 @@ $(srcdir)/config.h.in: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
 
 distclean-hdr:
 	-rm -f config.h stamp-h1
-libpng.pc: $(top_builddir)/config.status $(srcdir)/libpng-pc.in
+libpng.pc: $(top_builddir)/config.status $(srcdir)/libpng.pc.in
 	cd $(top_builddir) && $(SHELL) ./config.status $@
 libpng-config: $(top_builddir)/config.status $(srcdir)/libpng-config.in
 	cd $(top_builddir) && $(SHELL) ./config.status $@
diff --git a/configure b/configure
index 42932a10c..3a543de6c 100755
--- a/configure
+++ b/configure
@@ -11493,7 +11493,7 @@ fi
 
 
 # Config files, substituting as above
-ac_config_files="$ac_config_files Makefile libpng.pc:libpng-pc.in"
+ac_config_files="$ac_config_files Makefile libpng.pc:libpng.pc.in"
 
 ac_config_files="$ac_config_files libpng-config:libpng-config.in"
 
@@ -12476,7 +12476,7 @@ do
     "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
     "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
-    "libpng.pc") CONFIG_FILES="$CONFIG_FILES libpng.pc:libpng-pc.in" ;;
+    "libpng.pc") CONFIG_FILES="$CONFIG_FILES libpng.pc:libpng.pc.in" ;;
     "libpng-config") CONFIG_FILES="$CONFIG_FILES libpng-config:libpng-config.in" ;;
 
   *) as_fn_error "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
diff --git a/configure.ac b/configure.ac
index 76f7e8301..3947ea0cd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -117,7 +117,7 @@ AC_ARG_WITH(binconfigs,
 AC_SUBST([binconfigs])
 
 # Config files, substituting as above
-AC_CONFIG_FILES([Makefile libpng.pc:libpng-pc.in])
+AC_CONFIG_FILES([Makefile libpng.pc:libpng.pc.in])
 AC_CONFIG_FILES([libpng-config:libpng-config.in],
 		[chmod +x libpng-config])