--- ltmain.sh
+++ ltmain.sh
@@ -8842,7 +8842,7 @@ func_mode_link ()
 	esac
 
 	case $revision in
-	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]|[0-9].[0-9][0-9]) ;;
 	*)
 	  func_error "REVISION '$revision' must be a nonnegative integer"
 	  func_fatal_error "'$vinfo' is not valid version information"
--- Makefile.am
+++ Makefile.am
@@ -45,7 +45,7 @@ libpng10_la_LDFLAGS = -no-undefined -exp
 	-version-number 0:@PNGLIB_RELEASE@:0
 # -rpath is needed as automake doesn't know the directory
 libpng_la_LDFLAGS = -rpath '$(libdir)' -no-undefined -export-dynamic \
-	-version-number 2:@PNGLIB_RELEASE@:0
+	-version-number 2:1:0.@PNGLIB_RELEASE@
 
 if HAVE_LD_VERSION_SCRIPT
   # Versioned symbols and restricted exports
--- Makefile.in
+++ Makefile.in
@@ -617,7 +617,7 @@ libpng10_la_LDFLAGS = -no-undefined -exp
 	0:@PNGLIB_RELEASE@:0 $(am__append_1) $(am__append_2)
 # -rpath is needed as automake doesn't know the directory
 libpng_la_LDFLAGS = -rpath '$(libdir)' -no-undefined -export-dynamic \
-	-version-number 2:@PNGLIB_RELEASE@:0
+	-version-number 2:1:0.@PNGLIB_RELEASE@
 
 @HAVE_LD_VERSION_SCRIPT_FALSE@libpng10_la_DEPENDENCIES = libpng.sym
 @HAVE_LD_VERSION_SCRIPT_TRUE@libpng10_la_DEPENDENCIES = libpng.vers