auto import from //depot/cupcake/@135843
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..47e0cba
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,152 @@
+# Makefile.am:
+# Source file for Makefile.in (and hence Makefile)
+#
+# Makefile.am need only be changed on a major version number
+# change (e.g. libpng12 --> libpng13). In that case seach
+# this file for every instance of the old base name (libpng12)
+# and change to the new one (libpng13), then change the
+# -version-number settings below so that the new values have
+# the correct major part (first field).
+
+PNGLIB_BASENAME= libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@
+
+# libpng does not follow GNU file name conventions
+AUTOMAKE_OPTIONS = foreign
+
+# test programs - run on make check, make distcheck
+check_PROGRAMS= pngtest
+pngtest_SOURCES = pngtest.c
+pngtest_LDADD = libpng12.la
+TESTS = test-pngtest.sh
+TESTS_ENVIRONMENT= srcdir=$(srcdir)
+
+# man pages
+dist_man_MANS= libpng.3 libpngpf.3 png.5
+
+# generate the -config scripts if required
+binconfigs= libpng12-config
+EXTRA_SCRIPTS= libpng-config libpng12-config
+bin_SCRIPTS= @binconfigs@
+
+# rules to build libpng, only build the old library on request
+lib_LTLIBRARIES=libpng12.la @compatlib@
+EXTRA_LTLIBRARIES= libpng.la
+libpng12_la_SOURCES = 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 \
+ png.h pngconf.h
+libpng_la_SOURCES = $(libpng12_la_SOURCES)
+
+libpng_la_CPPFLAGS = @LIBPNG_DEFINES@
+libpng12_la_CPPFLAGS = @LIBPNG_DEFINES@
+
+# MAJOR UPGRADE: the version-number settings below must be changed.
+libpng12_la_LDFLAGS = -no-undefined -export-dynamic \
+ -version-number 0:@PNGLIB_RELEASE@:0
+# -rpath is needed as automake doesn't know the directory
+libpng_la_LDFLAGS = -rpath '$(libdir)' -no-undefined -export-dynamic \
+ -version-number 3:@PNGLIB_RELEASE@:0
+
+if HAVE_LD_VERSION_SCRIPT
+ # Versioned symbols and restricted exports
+ libpng12_la_LDFLAGS += -Wl,--version-script=libpng.vers
+ libpng12_la_DEPENDENCIES = libpng.vers
+else
+ # Only restricted exports when possible
+ libpng12_la_LDFLAGS += -export-symbols libpng.sym
+ libpng12_la_DEPENDENCIES = libpng.sym
+endif
+libpng_la_DEPENDENCIES = $(libpng12_la_DEPENDENCIES)
+
+# Avoid depending upon Character Ranges.
+AN = '_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
+
+#distribute headers in /usr/include/libpng/*
+pkgincludedir= $(includedir)/$(PNGLIB_BASENAME)
+pkginclude_HEADERS= png.h pngconf.h
+
+# pkg-config stuff, note that libpng.pc is always required in order
+# to get the correct library
+pkgconfigdir = @pkgconfigdir@
+pkgconfig_DATA = libpng12.pc
+
+#extra source distribution files.
+EXTRA_DIST= \
+ ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
+ pngtest.png pngbar.png pngnow.png pngbar.jpg autogen.sh \
+ ${srcdir}/projects/cbuilder5/* \
+ ${srcdir}/projects/beos/* \
+ ${srcdir}/projects/visualc6/* \
+ ${srcdir}/projects/visualc71/* \
+ ${srcdir}/projects/wince.txt \
+ ${srcdir}/projects/netware.txt \
+ ${srcdir}/scripts/* \
+ ${srcdir}/contrib/gregbook/* \
+ ${srcdir}/contrib/pngminus/* \
+ ${srcdir}/contrib/pngsuite/* \
+ ${srcdir}/contrib/visupng/* \
+ $(TESTS) \
+ example.c libpng-1.2.29.txt pngvcrd.c
+
+CLEANFILES= pngout.png libpng12.pc libpng12-config libpng.vers \
+libpng.sym
+
+MAINTAINERCLEANFILES = Makefile.in aclocal.m4 config.guess config.h.in \
+config.sub configure depcomp install-sh ltmain.sh missing
+
+$(PNGLIB_BASENAME).pc: libpng.pc
+ cp libpng.pc $@
+
+$(PNGLIB_BASENAME)-config: libpng-config
+ cp libpng-config $@
+
+libpng.sym: png.h pngconf.h
+ rm -f $@ $@.new
+ $(CPP) @LIBPNG_DEFINES@ $(CPPFLAGS) -DPNG_BUILDSYMS $(srcdir)/png.h | \
+ $(SED) -n -e \
+ 's|^.*PNG_FUNCTION_EXPORT[ ]*\([$(AN)]*\).*$$|$(SYMBOL_PREFIX)\1|p' \
+ -e 's|^.*PNG_DATA_EXPORT[ ]*\([$(AN)]*\).*$$|$(SYMBOL_PREFIX)\1|p' \
+ >$@.new
+ mv $@.new $@
+
+libpng.vers: libpng.sym
+ rm -f $@ $@.new
+ echo PNG@PNGLIB_MAJOR@@PNGLIB_MINOR@_0 '{global:' > $@.new
+ $(SED) s/$$/\;/ libpng.sym >> $@.new
+ echo 'local: *; };' >> $@.new
+ mv $@.new $@
+
+test: check
+
+# install the .../include headers as links to the new ones
+install-data-hook:
+ cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h
+ cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/png.h png.h
+ cd $(DESTDIR)$(includedir); $(LN_S) $(PNGLIB_BASENAME)/pngconf.h pngconf.h
+ cd $(DESTDIR)$(pkgconfigdir); rm -f libpng.pc
+ cd $(DESTDIR)$(pkgconfigdir); $(LN_S) $(PNGLIB_BASENAME).pc libpng.pc
+
+# do evil things to libpng to cause libpng12 to be used
+install-exec-hook:
+ cd $(DESTDIR)$(bindir); rm -f libpng-config
+ cd $(DESTDIR)$(bindir); $(LN_S) $(PNGLIB_BASENAME)-config libpng-config
+ @set -x;\
+ cd $(DESTDIR)$(libdir);\
+ for ext in a la so sl dylib; do\
+ rm -f libpng.$$ext;\
+ if test -f $(PNGLIB_BASENAME).$$ext; then\
+ $(LN_S) $(PNGLIB_BASENAME).$$ext libpng.$$ext;\
+ fi;\
+ done
+
+uninstall-hook:
+ cd $(DESTDIR)$(includedir); rm -f png.h pngconf.h
+ rm -f $(DESTDIR)$(pkgconfigdir)/libpng.pc
+ rm -f $(DESTDIR)$(bindir)/libpng-config
+ @if test -n "@compatlib@"; then\
+ set -x;\
+ cd $(DESTDIR)$(libdir);\
+ for ext in a la so sl dylib; do\
+ rm -f libpng.$$ext;\
+ done;\
+ fi