Imported from libpng-1.2.27.tar
diff --git a/ANNOUNCE b/ANNOUNCE
index 5d4c97b..8b82a14 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,83 +1,69 @@
 
-Libpng 1.2.27rc01 - April 23, 2008
+Libpng 1.2.27 - April 30, 2008
 
-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.
+This is a public release of libpng, intended for use in production codes.
 
 Files available for download:
 
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   libpng-1.2.27rc01.tar.gz
-   libpng-1.2.27rc01.tar.lzma
+   libpng-1.2.27.tar.gz
+   libpng-1.2.27.tar.lzma
      (Get the lzma codec from <http://tukaani.org/lzma>).
-   libpng-1.2.27rc01.tar.bz2
+   libpng-1.2.27.tar.bz2
 
 Source files with LF line endings (for Unix/Linux) without the
 "configure" script
 
-   libpng-1.2.27rc01-no-config.tar.gz
-   libpng-1.2.27rc01-no-config.tar.lzma
-   libpng-1.2.27rc01-no-config.tar.bz2
+   libpng-1.2.27-no-config.tar.gz
+   libpng-1.2.27-no-config.tar.lzma
+   libpng-1.2.27-no-config.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lp1227r01.zip
-   lp1227r01.7z
-   lp1227r01.tar.bz2
+   lpng1227.zip
+   lpng1227.7z
+   lpng1227.tar.bz2
 
 Project files
 
-   libpng-1.2.27rc01-project-netware.zip
-   libpng-1.2.27rc01-project-wince.zip
+   libpng-1.2.27-project-netware.zip
+   libpng-1.2.27-project-wince.zip
 
 Other information:
 
-   libpng-1.2.27rc01-README.txt
-   libpng-1.2.27rc01-KNOWNBUGS.txt
-   libpng-1.2.27rc01-LICENSE.txt
-   libpng-1.2.27rc01-Y2K-compliance.txt
-   libpng-1.2.27rc01-[previous version]-diff.txt
+   libpng-1.2.27-README.txt
+   libpng-1.2.27-KNOWNBUGS.txt
+   libpng-1.2.27-LICENSE.txt
+   libpng-1.2.27-Y2K-compliance.txt
+   libpng-1.2.27-[previous version]-diff.txt
 
 Changes since the last public release (1.2.26):
 
-version 1.2.27beta01 [April 12, 2008]
-  Fixed bug (introduced in libpng-1.0.5h) with handling zero-length
+version 1.2.27 [April 30, 2008]
+
+  Fixed bug (introduced in libpng-1.0.6) with handling zero-length
     unknown chunks.
   Added more information about png_set_keep_unknown_chunks() to the
     documetation.
-  Reject tRNS chunk with out-of-range samples instead of masking off
-    the invalid high bits as done in since libpng-1.2.19beta5.
-
-version 1.2.27beta02 [April 13, 2008]
   Revised documentation about unknown chunk and user chunk handling.
-  Keep tRNS chunk with out-of-range samples and issue a png_warning().
-
-version 1.2.27beta03 [April 14, 2008]
+  Issue a png_warning when reading a tRNS chunk with out-of-range samples.
   Added check for NULL ptr in TURBOC version of png_free_default().
   Removed several unnecessary checks for NULL before calling png_free().
   Revised png_set_tRNS() so that calling it twice removes and invalidates
     the previous call.
   Revised pngtest to check for out-of-range tRNS samples.
-
-version 1.2.27beta04 [April 18, 2008]
   Added AC_LIBTOOL_WIN32_DLL to configure.ac
   Rebuilt Makefile.in, aclocal.m4, and configure with autoconf-2.62
-
-version 1.2.27beta05 [April 19, 2008]
   Added MAINTEINERCLEANFILES variable to Makefile.am
-
-version 1.2.27beta06 [April 21, 2008]
   Avoid changing color_type from GRAY to RGB by
     png_set_expand_gray_1_2_4_to_8().
-
-version 1.2.27rc01 [April 23, 2008]
   Fix broken URL for rfc2083 in png.5 and libpng-*.txt
 
-Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 
+Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit 
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
 to subscribe) or to glennrp at users.sourceforge.net
diff --git a/CHANGES b/CHANGES
index e06c055..e4c0c20 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2136,6 +2136,9 @@
 version 1.2.27rc01 [April 23, 2008]
   Fix broken URL for rfc2083 in png.5 and libpng-*.txt
 
+version 1.0.33 and 1.2.27rc01 [April 30, 2008]
+  No changes.
+
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
diff --git a/INSTALL b/INSTALL
index b000bd5..d7a9532 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.2.27rc01 - April 23, 2008
+Installing libpng version 1.2.27 - April 30, 2008
 
 On Unix/Linux and similar systems, you can simply type
 
@@ -44,7 +44,7 @@
 correspond to the version of zlib that's installed.
 
 You can rename the directories that you downloaded (they
-might be called "libpng-1.2.27rc01" or "lpng109" and "zlib-1.2.1"
+might be called "libpng-1.2.27" or "lpng109" and "zlib-1.2.1"
 or "zlib121") so that you have directories called "zlib" and "libpng".
 
 Your directory structure should look like this:
@@ -101,9 +101,9 @@
  CMakeLists.txt    =>  "cmake" script
  makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
  makefile.elf      =>  Linux/ELF makefile symbol versioning,
-                       gcc, creates libpng12.so.0.1.2.27rc01)
+                       gcc, creates libpng12.so.0.1.2.27)
  makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng12.so.0.1.2.27rc01)
+                       (gcc, creates libpng12.so.0.1.2.27)
  makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
  makefile.knr      =>  Archaic UNIX Makefile that converts files with
                        ansi2knr (Requires ansi2knr.c from
@@ -125,14 +125,14 @@
  makefile.openbsd  =>  OpenBSD makefile
  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
  makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng12.so.0.1.2.27rc01)
+                       creates libpng12.so.0.1.2.27)
  makefile.sunos    =>  Sun makefile
  makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng12.so.0.1.2.27rc01)
+                       creates libpng12.so.0.1.2.27)
  makefile.solaris-x86 =>  Solaris/intelMMX 2.X makefile (gcc,
-                       creates libpng12.so.0.1.2.27rc01)
+                       creates libpng12.so.0.1.2.27)
  makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng12.so.0.1.2.27rc01)
+                       creates libpng12.so.0.1.2.27)
  makefile.32sunu   =>  Sun Ultra 32-bit makefile
  makefile.64sunu   =>  Sun Ultra 64-bit makefile
  makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
diff --git a/KNOWNBUG b/KNOWNBUG
index 717aafd..e0b4019 100644
--- a/KNOWNBUG
+++ b/KNOWNBUG
@@ -1,5 +1,5 @@
 
-Known bugs in libpng version 1.2.27rc01
+Known bugs in libpng version 1.2.27
 
 1. February 23, 2006: The custom makefiles don't build libpng with -lz.
 
diff --git a/LICENSE b/LICENSE
index 9881935..ca1275c 100644
--- a/LICENSE
+++ b/LICENSE
@@ -8,7 +8,7 @@
 If you modify libpng you may insert additional notices immediately following
 this sentence.
 
-libpng versions 1.2.6, August 15, 2004, through 1.2.27rc01, April 23, 2008, are
+libpng versions 1.2.6, August 15, 2004, through 1.2.27, April 30, 2008, are
 Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@@ -106,4 +106,4 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-April 23, 2008
+April 30, 2008
diff --git a/Makefile.am b/Makefile.am
index 84504e8..13beeb4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -86,7 +86,7 @@
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.2.27rc01.txt pngvcrd.c 
+	example.c libpng-1.2.27.txt pngvcrd.c 
 
 CLEANFILES= pngout.png libpng12.pc libpng12-config libpng.vers \
 libpng.sym
diff --git a/README b/README
index c1239e0..3f7fbd0 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.2.27rc01 - April 23, 2008 (shared library 12.0)
+README for libpng version 1.2.27 - April 30, 2008 (shared library 12.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
@@ -191,11 +191,11 @@
        descrip.mms      =>  VMS makefile for MMS or MMK
        makefile.std     =>  Generic UNIX makefile (cc, creates static libpng.a)
        makefile.elf     =>  Linux/ELF makefile symbol versioning,
-                            gcc, creates libpng12.so.0.1.2.27rc01)
+                            gcc, creates libpng12.so.0.1.2.27)
        makefile.linux   =>  Linux/ELF makefile
-                            (gcc, creates libpng12.so.0.1.2.27rc01)
+                            (gcc, creates libpng12.so.0.1.2.27)
        makefile.gcmmx   =>  Linux/ELF makefile
-                            (gcc, creates libpng12.so.0.1.2.27rc01,
+                            (gcc, creates libpng12.so.0.1.2.27,
                             uses assembler code tuned for Intel MMX platform)
        makefile.gcc     =>  Generic makefile (gcc, creates static libpng.a)
        makefile.knr     =>  Archaic UNIX Makefile that converts files with
@@ -217,12 +217,12 @@
        makefile.openbsd =>  OpenBSD makefile
        makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
        makefile.sggcc   =>  Silicon Graphics
-                            (gcc, creates libpng12.so.0.1.2.27rc01)
+                            (gcc, creates libpng12.so.0.1.2.27)
        makefile.sunos   =>  Sun makefile
        makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng12.so.0.1.2.27rc01)
+                            (gcc, creates libpng12.so.0.1.2.27)
        makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng12.so.0.1.2.27rc01)
+                            (gcc, creates libpng12.so.0.1.2.27)
        makefile.32sunu  =>  Sun Ultra 32-bit makefile
        makefile.64sunu  =>  Sun Ultra 64-bit makefile
        makefile.sco     =>  For SCO OSr5  ELF and Unixware 7 with Native cc
diff --git a/Y2KINFO b/Y2KINFO
index 2a9856d..e2c8b08 100644
--- a/Y2KINFO
+++ b/Y2KINFO
@@ -1,13 +1,13 @@
    Y2K compliance in libpng:
    =========================
 
-      April 23, 2008
+      April 30, 2008
 
       Since the PNG Development group is an ad-hoc body, we can't make
       an official declaration.
 
       This is your unofficial assurance that libpng from version 0.71 and
-      upward through 1.2.27rc01 are Y2K compliant.  It is my belief that earlier
+      upward through 1.2.27 are Y2K compliant.  It is my belief that earlier
       versions were also Y2K compliant.
 
       Libpng only has three year fields.  One is a 2-byte unsigned integer
diff --git a/aclocal.m4 b/aclocal.m4
index 4c97573..367ed03 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -13,8 +13,8 @@
 
 m4_ifndef([AC_AUTOCONF_VERSION],
   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
-m4_if(AC_AUTOCONF_VERSION, [2.62],,
-[m4_warning([this file was generated for autoconf 2.62.
+m4_if(AC_AUTOCONF_VERSION, [2.61],,
+[m4_warning([this file was generated for autoconf 2.61.
 You have another version of autoconf.  It may work, but is not guaranteed to.
 If you have problems, you may need to regenerate the build system entirely.
 To do so, use the procedure documented by the package, typically `autoreconf'.])])
@@ -58,7 +58,7 @@
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 ])
 
-# serial 55 LT_INIT
+# serial 54 LT_INIT
 
 
 # LT_PREREQ(VERSION)
@@ -78,7 +78,7 @@
 m4_defun([_LT_CHECK_BUILDDIR],
 [case `pwd` in
   *\ * | *\	*)
-    AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;;
+    AC_MSG_WARN([Libtool does not cope well with whitespace in \`pwd\`]) ;;
 esac
 ])
 
@@ -176,7 +176,9 @@
 _LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl
 dnl
 AC_REQUIRE([LT_CMD_MAX_LEN])dnl
+AC_REQUIRE([AC_OBJEXT])dnl
 _LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl
+AC_REQUIRE([AC_EXEEXT])dnl
 _LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl
 dnl
 m4_require([_LT_FILEUTILS_DEFAULTS])dnl
@@ -698,7 +700,7 @@
 #! $SHELL
 
 # `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
-# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
+# Generated automatically by $as_me (GNU $PACKAGE$TIMESTAMP) $VERSION
 # Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
 # NOTE: Changes made to this file will be lost: look at ltmain.sh.
 #
@@ -920,20 +922,14 @@
 	# by either setting the environment variable LT_MULTI_MODULE
 	# non-empty at configure time, or by adding -multi_module to the
 	# link flags.
-	rm -rf libconftest.dylib*
 	echo "int foo(void){return 1;}" > conftest.c
-	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
--dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
 	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
-	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
-        _lt_result=$?
-	if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
+	  -dynamiclib ${wl}-single_module conftest.c
+	if test -f libconftest.dylib; then
 	  lt_cv_apple_cc_single_mod=yes
-	else
-	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	  rm -rf libconftest.dylib*
 	fi
-	rm -rf libconftest.dylib*
-	rm -f conftest.*
+	rm conftest.c
       fi])
     AC_CACHE_CHECK([for -exported_symbols_list linker flag],
       [lt_cv_ld_exported_symbols_list],
@@ -1213,7 +1209,8 @@
 # _LT_ENABLE_LOCK
 # ---------------
 m4_defun([_LT_ENABLE_LOCK],
-[AC_ARG_ENABLE([libtool-lock],
+[AC_REQUIRE([AC_OBJEXT])dnl
+AC_ARG_ENABLE([libtool-lock],
   [AS_HELP_STRING([--disable-libtool-lock],
     [avoid locking (might break parallel builds)])])
 test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
@@ -1402,7 +1399,8 @@
 # ----------------------------------------------------------------
 # Check whether the given compiler option works
 AC_DEFUN([_LT_COMPILER_OPTION],
-[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+[AC_REQUIRE([AC_OBJEXT])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
 m4_require([_LT_DECL_SED])dnl
 AC_CACHE_CHECK([$1], [$2],
   [$2=no
@@ -1854,7 +1852,8 @@
 # Check to see if options -c and -o are simultaneously supported by compiler.
 # This macro does not hard code the compiler like AC_PROG_CC_C_O.
 m4_defun([_LT_COMPILER_C_O],
-[m4_require([_LT_DECL_SED])dnl
+[AC_REQUIRE([AC_OBJEXT])dnl
+m4_require([_LT_DECL_SED])dnl
 m4_require([_LT_FILEUTILS_DEFAULTS])dnl
 m4_require([_LT_TAG_COMPILER])dnl
 AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
@@ -2171,18 +2170,13 @@
   ;;
 
 amigaos*)
-  case $host_cpu in
-  powerpc)
-    # Since July 2007 AmigaOS4 officially supports .so libraries.
-    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
-    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
-    ;;
-  m68k)
+  if test "$host_cpu" = m68k; then
     library_names_spec='$libname.ixlibrary $libname.a'
     # Create ${libname}_ixlibrary.a entries in /sys/libs.
     finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$ECHO "X$lib" | $Xsed -e '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
-    ;;
-  esac
+  else
+    dynamic_linker=no
+  fi
   ;;
 
 beos*)
@@ -3164,6 +3158,7 @@
 # find the pathname to a BSD- or MS-compatible name lister
 AC_DEFUN([LT_PATH_NM],
 [AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_OBJEXT])dnl
 AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
 [if test -n "$NM"; then
   # Let the user override the test.
@@ -3299,6 +3294,7 @@
 m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_OBJEXT])dnl
 AC_REQUIRE([LT_PATH_NM])dnl
 AC_REQUIRE([LT_PATH_LD])dnl
 m4_require([_LT_DECL_SED])dnl
@@ -3550,22 +3546,14 @@
 	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
       fi
       ;;
-
     amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-        ;;
-      m68k)
-            # FIXME: we need at least 68020 code to build shared libraries, but
-            # adding the `-m68020' flag to GCC prevents building anything better,
-            # like `-m68040'.
-            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
-        ;;
-      esac
+      if test "$host_cpu" = m68k; then
+        # FIXME: we need at least 68020 code to build shared libraries, but
+        # adding the `-m68020' flag to GCC prevents building anything better,
+        # like `-m68040'.
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+      fi
       ;;
-
     beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
       # PIC is the default for these OSes.
       ;;
@@ -3850,18 +3838,12 @@
       ;;
 
     amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-        ;;
-      m68k)
-            # FIXME: we need at least 68020 code to build shared libraries, but
-            # adding the `-m68020' flag to GCC prevents building anything better,
-            # like `-m68040'.
-            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
-        ;;
-      esac
+      if test "$host_cpu" = m68k; then
+        # FIXME: we need at least 68020 code to build shared libraries, but
+        # adding the `-m68020' flag to GCC prevents building anything better,
+        # like `-m68040'.
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+      fi
       ;;
 
     beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
@@ -4268,18 +4250,19 @@
       ;;
 
     amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-            _LT_TAGVAR(archive_expsym_cmds, $1)=''
-        ;;
-      m68k)
-            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
-            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-            _LT_TAGVAR(hardcode_minus_L, $1)=yes
-        ;;
-      esac
+      if test "$host_cpu" = m68k; then
+        _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+        _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      fi
+
+      # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
+      # that the semantics of dynamic libraries on AmigaOS, at least up
+      # to version 4, is to share data among multiple programs linked
+      # with the same dynamic library.  Since this doesn't match the
+      # behavior of shared libraries on other platforms, we can't use
+      # them.
+      _LT_TAGVAR(ld_shlibs, $1)=no
       ;;
 
     beos*)
@@ -4626,18 +4609,13 @@
       ;;
 
     amigaos*)
-      case $host_cpu in
-      powerpc)
-            # see comment about AmigaOS4 .so support
-            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
-            _LT_TAGVAR(archive_expsym_cmds, $1)=''
-        ;;
-      m68k)
-            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
-            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
-            _LT_TAGVAR(hardcode_minus_L, $1)=yes
-        ;;
-      esac
+      if test "$host_cpu" = m68k; then
+        _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+        _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      fi
+      # see comment about different semantics on the GNU ld section
+      _LT_TAGVAR(ld_shlibs, $1)=no
       ;;
 
     bsdi[[45]]*)
@@ -6848,7 +6826,6 @@
 CC=${GCJ-"gcj"}
 compiler=$CC
 _LT_TAGVAR(compiler, $1)=$CC
-_LT_TAGVAR(LD, $1)="$LD"
 _LT_CC_BASENAME([$compiler])
 
 # GCJ did not exist at the time GCC didn't implicitly link libc in.
@@ -7288,7 +7265,7 @@
 # unlimited permission to copy and/or distribute it, with or without
 # modifications, as long as this notice is preserved.
 
-# serial 5 ltoptions.m4
+# serial 4 ltoptions.m4
 
 # This is to help aclocal find these macros, as it can't see m4_define.
 AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
@@ -7421,8 +7398,7 @@
 ])# win32-dll
 
 AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
-[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-_LT_SET_OPTION([LT_INIT], [win32-dll])
+[_LT_SET_OPTION([LT_INIT], [win32-dll])
 AC_DIAGNOSE([obsolete],
 [$0: Remove this warning and the call to _LT_SET_OPTION when you
 put the `win32-dll' option into LT_INIT's first parameter.])
@@ -7777,15 +7753,15 @@
 
 # Generated from ltversion.in.
 
-# serial 2627 ltversion.m4
+# serial 2599 ltversion.m4
 # This file is part of GNU Libtool
 
-m4_define([LT_PACKAGE_VERSION], [2.2.2])
-m4_define([LT_PACKAGE_REVISION], [1.2627])
+m4_define([LT_PACKAGE_VERSION], [2.2])
+m4_define([LT_PACKAGE_REVISION], [1.2599])
 
 AC_DEFUN([LTVERSION_VERSION],
-[macro_version='2.2.2'
-macro_revision='1.2627'
+[macro_version='2.2'
+macro_revision='1.2599'
 _LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
 _LT_DECL(, macro_revision, 0)
 ])
diff --git a/configure b/configure
index 99a1aef..a17ab83 100755
--- a/configure
+++ b/configure
Binary files differ
diff --git a/configure.ac b/configure.ac
index 48b67ea..f538b08 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,12 +18,12 @@
 
 dnl Version number stuff here:
 
-AC_INIT([libpng], [1.2.27rc01], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.2.27], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE
 
-PNGLIB_VERSION=1.2.27rc01
+PNGLIB_VERSION=1.2.27
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=2
 PNGLIB_RELEASE=27
diff --git a/libpng-1.2.27rc01.txt b/libpng-1.2.27.txt
similarity index 99%
rename from libpng-1.2.27rc01.txt
rename to libpng-1.2.27.txt
index ad4393b..fba28f1 100644
--- a/libpng-1.2.27rc01.txt
+++ b/libpng-1.2.27.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.27rc01 - April 23, 2008
+ libpng version 1.2.27 - April 30, 2008
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2008 Glenn Randers-Pehrson
@@ -9,7 +9,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.2.27rc01 - April 23, 2008
+ libpng versions 0.97, January 1998, through 1.2.27 - April 30, 2008
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2008 Glenn Randers-Pehrson
 
@@ -2851,13 +2851,13 @@
 
 IX. Y2K Compliance in libpng
 
-April 23, 2008
+April 30, 2008
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.27rc01 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.27 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.
 
 Libpng only has three year fields.  One is a 2-byte unsigned integer that
diff --git a/libpng.3 b/libpng.3
index 373b089..3f4a13a 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "April 23, 2008"
+.TH LIBPNG 3 "April 30, 2008"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.27rc01
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.27
 .SH SYNOPSIS
 \fB
 #include <png.h>\fP
@@ -410,7 +410,7 @@
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.27rc01 - April 23, 2008
+ libpng version 1.2.27 - April 30, 2008
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2008 Glenn Randers-Pehrson
@@ -419,7 +419,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.2.27rc01 - April 23, 2008
+ libpng versions 0.97, January 1998, through 1.2.27 - April 30, 2008
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2008 Glenn Randers-Pehrson
 
@@ -3261,13 +3261,13 @@
 
 .SH IX. Y2K Compliance in libpng
 
-April 23, 2008
+April 30, 2008
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.27rc01 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.27 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.
 
 Libpng only has three year fields.  One is a 2-byte unsigned integer that
@@ -3545,7 +3545,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.2.27rc01 - April 23, 2008:
+Libpng version 1.2.27 - April 30, 2008:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -3566,7 +3566,7 @@
 If you modify libpng you may insert additional notices immediately following
 this sentence.
 
-libpng versions 1.2.6, August 15, 2004, through 1.2.27rc01, April 23, 2008, are
+libpng versions 1.2.6, August 15, 2004, through 1.2.27, April 30, 2008, are
 Copyright (c) 2004,2006-2008 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@@ -3665,7 +3665,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-April 23, 2008
+April 30, 2008
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index 1cd7022..68081a3 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "April 23, 2008"
+.TH LIBPNGPF 3 "April 30, 2008"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.27rc01
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.27
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP
diff --git a/png.5 b/png.5
index 4f84379..4d168e6 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "April 23, 2008"
+.TH PNG 5 "April 30, 2008"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index 9494b24..892342c 100644
--- a/png.c
+++ b/png.c
@@ -13,7 +13,7 @@
 #include "png.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_27rc01 Your_png_h_is_not_version_1_2_27rc01;
+typedef version_1_2_27 Your_png_h_is_not_version_1_2_27;
 
 /* Version information for C files.  This had better match the version
  * string defined in png.h.  */
@@ -693,7 +693,7 @@
 png_get_copyright(png_structp png_ptr)
 {
    png_ptr = png_ptr;  /* silence compiler warning about unused png_ptr */
-   return ((png_charp) "\n libpng version 1.2.27rc01 - April 23, 2008\n\
+   return ((png_charp) "\n libpng version 1.2.27 - April 30, 2008\n\
    Copyright (c) 1998-2008 Glenn Randers-Pehrson\n\
    Copyright (c) 1996-1997 Andreas Dilger\n\
    Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");
diff --git a/png.h b/png.h
index f162c29..8afa5ff 100644
--- a/png.h
+++ b/png.h
@@ -1,6 +1,6 @@
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.2.27rc01 - April 23, 2008
+ * libpng version 1.2.27 - April 30, 2008
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -8,7 +8,7 @@
  * Authors and maintainers:
  *  libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
  *  libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- *  libpng versions 0.97, January 1998, through 1.2.27rc01 - April 23, 2008: Glenn
+ *  libpng versions 0.97, January 1998, through 1.2.27 - April 30, 2008: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -183,6 +183,9 @@
  *    1.2.26                  13    10226  12.so.0.26[.0]
  *    1.0.32                  10    10032  10.so.0.32[.0]
  *    1.2.27beta01-06         13    10227  12.so.0.27[.0]
+ *    1.2.27rc01              13    10227  12.so.0.27[.0]
+ *    1.0.33                  10    10032  10.so.0.33[.0]
+ *    1.2.27                  13    10227  12.so.0.27[.0]
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
@@ -212,7 +215,7 @@
  * If you modify libpng you may insert additional notices immediately following
  * this sentence.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.2.27rc01, April 23, 2008, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.2.27, April 30, 2008, are
  * Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are
  * distributed according to the same disclaimer and license as libpng-1.2.5
  * with the following individual added to the list of Contributing Authors:
@@ -324,13 +327,13 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    April 23, 2008
+ *    April 30, 2008
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
  *
  *    This is your unofficial assurance that libpng from version 0.71 and
- *    upward through 1.2.27rc01 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.2.27 are Y2K compliant.  It is my belief that earlier
  *    versions were also Y2K compliant.
  *
  *    Libpng only has three year fields.  One is a 2-byte unsigned integer
@@ -386,9 +389,9 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.2.27rc01"
+#define PNG_LIBPNG_VER_STRING "1.2.27"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.2.27rc01 - April 23, 2008\n"
+   " libpng version 1.2.27 - April 30, 2008\n"
 
 #define PNG_LIBPNG_VER_SONUM   0
 #define PNG_LIBPNG_VER_DLLNUM  13
@@ -400,7 +403,7 @@
 /* This should match the numeric part of the final component of
  * PNG_LIBPNG_VER_STRING, omitting any leading zero: */
 
-#define PNG_LIBPNG_VER_BUILD  01
+#define PNG_LIBPNG_VER_BUILD  0
 
 /* Release Status */
 #define PNG_LIBPNG_BUILD_ALPHA    1
@@ -417,7 +420,7 @@
 #define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with
                                        PNG_LIBPNG_BUILD_PRIVATE */
 
-#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_RC
+#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE
 
 /* Careful here.  At one time, Guy wanted to use 082, but that would be octal.
  * We must not include leading zeros.
@@ -1441,7 +1444,7 @@
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef png_structp version_1_2_27rc01;
+typedef png_structp version_1_2_27;
 
 typedef png_struct FAR * FAR * png_structpp;
 
diff --git a/pngconf.h b/pngconf.h
index ab2c39f..cd94082 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.2.27rc01 - April 23, 2008
+ * libpng version 1.2.27 - April 30, 2008
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngmem.c b/pngmem.c
index 2f8983e..13cc60c 100644
--- a/pngmem.c
+++ b/pngmem.c
@@ -1,7 +1,7 @@
 
 /* pngmem.c - stub functions for memory allocation
  *
- * Last changed in libpng 1.2.27 [April 23, 2008]
+ * Last changed in libpng 1.2.27 [April 29, 2008]
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngpread.c b/pngpread.c
index b46acc5..aa7151c 100644
--- a/pngpread.c
+++ b/pngpread.c
@@ -1,7 +1,7 @@
 
 /* pngpread.c - read a png file in push mode
  *
- * Last changed in libpng 1.2.27 [April 23, 2008]
+ * Last changed in libpng 1.2.27 [April 29, 2008]
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrtran.c b/pngrtran.c
index d32a230..873b22c 100644
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,7 +1,7 @@
 
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
- * Last changed in libpng 1.2.27 [April 23, 2008]
+ * Last changed in libpng 1.2.27 [April 29, 2008]
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrutil.c b/pngrutil.c
index 62cccff..531cb05 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,7 +1,7 @@
 
 /* pngrutil.c - utilities to read a PNG file
  *
- * Last changed in libpng 1.2.27 [April 23, 2008]
+ * Last changed in libpng 1.2.27 [April 29, 2008]
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngset.c b/pngset.c
index 71da976..8b25ca5 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1,7 +1,7 @@
 
 /* pngset.c - storage of image information into info struct
  *
- * Last changed in libpng 1.2.27 [April 23, 2008]
+ * Last changed in libpng 1.2.27 [April 29, 2008]
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngtest.c b/pngtest.c
index 0019d07..9674f71 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1,7 +1,7 @@
 
 /* pngtest.c - a simple test program to test libpng
  *
- * Last changed in libpng 1.2.27 - [April 23, 2008]
+ * Last changed in libpng 1.2.27 - [April 29, 2008]
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -1560,4 +1560,4 @@
 }
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_27rc01 your_png_h_is_not_version_1_2_27rc01;
+typedef version_1_2_27 your_png_h_is_not_version_1_2_27;
diff --git a/pngwrite.c b/pngwrite.c
index 4a67cd2..7d02ad7 100644
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -1,7 +1,7 @@
 
 /* pngwrite.c - general routines to write a PNG file
  *
- * Last changed in libpng 1.2.27 [April 23, 2008]
+ * Last changed in libpng 1.2.27 [April 29, 2008]
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngwutil.c b/pngwutil.c
index af2d968..0774080 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,7 +1,7 @@
 
 /* pngwutil.c - utilities to write a PNG file
  *
- * Last changed in libpng 1.2.27 [April 23, 2008]
+ * Last changed in libpng 1.2.27 [April 29, 2008]
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt
index fe4b5b7..284de1b 100644
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -169,7 +169,7 @@
 
 # SET UP LINKS
 set_target_properties(${PNG_LIB_NAME} PROPERTIES
-#    VERSION 0.${PNGLIB_RELEASE}.1.2.27rc01
+#    VERSION 0.${PNGLIB_RELEASE}.1.2.27
      VERSION 0.${PNGLIB_RELEASE}.0
      SOVERSION 0
      CLEAN_DIRECT_OUTPUT 1)
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in
index 2bad60e..af228a0 100755
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -8,7 +8,7 @@
 
 # Modeled after libxml-config.
 
-version=1.2.27rc01
+version=1.2.27
 prefix=""
 libdir=""
 libs=""
diff --git a/scripts/libpng.pc-configure.in b/scripts/libpng.pc-configure.in
index 0c903bc..cef878c 100644
--- a/scripts/libpng.pc-configure.in
+++ b/scripts/libpng.pc-configure.in
@@ -5,6 +5,6 @@
 
 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.2.27rc01
+Version: 1.2.27
 Libs: -L${libdir} -lpng12
 Cflags: -I${includedir} @LIBPNG_NO_MMX@
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index 9ec5f57..9fb732f 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@
 
 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.2.27rc01
+Version: 1.2.27
 Libs: -L${libdir} -lpng12
 Cflags: -I${includedir}
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index 1c05481..c56770f 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index e3aeb33..e859fb1 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.aix b/scripts/makefile.aix
index 4caa4b4..1d798e4 100644
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -20,7 +20,7 @@
 
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 prefix=/usr/local
diff --git a/scripts/makefile.beos b/scripts/makefile.beos
index dd1f2be..6c406e6 100644
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin
index 898456e..db6ab36 100644
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -74,7 +74,7 @@
 LIBNAME = libpng12
 PNGMAJ = 0
 CYGDLL = 12
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=cygpng$(CYGDLL).dll
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index e6582c0..01da2ca 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -19,7 +19,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index e2f58f8..08765ae 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -5,7 +5,7 @@
 
 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
diff --git a/scripts/makefile.elf b/scripts/makefile.elf
index 04be2cf..71854e8 100644
--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -12,7 +12,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.gcmmx b/scripts/makefile.gcmmx
index 4b4a9c1..00269c6 100644
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -14,7 +14,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index b82c973..bd4145b 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -18,7 +18,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index b1e49c1..6732fe9 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index 108ea61..26f9576 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -18,7 +18,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 85a9c85..1498a25 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -6,7 +6,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.mingw b/scripts/makefile.mingw
index dc6fe8d..2d47975 100644
--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -74,7 +74,7 @@
 LIBNAME = libpng12
 PNGMAJ = 0
 MINGDLL = 12
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=libpng$(MINGDLL).dll
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index 5506589..731db49 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -14,7 +14,7 @@
 
 LIB=	png12
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.27rc01
+SHLIB_MINOR=	1.2.27
 SRCS=	png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd
index 6c3bcd7..a90c744 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -14,7 +14,7 @@
 
 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.2.27rc01
+SHLIB_MINOR=	1.2.27
 SRCS=	png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 	pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 	pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.nommx b/scripts/makefile.nommx
index d6589dc..f3f7569 100644
--- a/scripts/makefile.nommx
+++ b/scripts/makefile.nommx
@@ -7,7 +7,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index 675ee3a..4321cf0 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -8,7 +8,7 @@
 MANDIR= ${PREFIX}/man/cat
 
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.27rc01
+SHLIB_MINOR=	1.2.27
 
 LIB=	png
 SRCS=	png.c pngerror.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index 2c2f97d..8ee8566 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -9,7 +9,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index 4cc893f..0464c19 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -6,7 +6,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index 2182b20..e65bb07 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -6,7 +6,7 @@
 # Library name:
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index d285b90..0b3847e 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -8,7 +8,7 @@
 
 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index 688b01f..ee0acc8 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.solaris-x86 b/scripts/makefile.solaris-x86
index 9fd325f..0c9cee2 100644
--- a/scripts/makefile.solaris-x86
+++ b/scripts/makefile.solaris-x86
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.27rc01
+PNGMIN = 1.2.27
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/pngos2.def b/scripts/pngos2.def
index 119b7a1..9f628cb 100644
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------
 
-; Version 1.2.27rc01
+; Version 1.2.27
 
 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"
diff --git a/scripts/pngw32.def b/scripts/pngw32.def
index f1827ea..f257627 100644
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@@ -5,7 +5,7 @@
 LIBRARY
 
 EXPORTS
-;Version 1.2.27rc01
+;Version 1.2.27
   png_build_grayscale_palette  @1
   png_check_sig        @2
   png_chunk_error      @3