Fails to build with gcc: `pngpaste.m: error: stray ‘@’ in program` etc.

[barracuda156]

--->  Building pngpaste
Executing:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/pngpaste-0.2.3" && /usr/bin/make -j6 -w all CC="/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/cc/usr/bin/gcc-4.2" CXX="/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/cxx/usr/bin/g++-4.2" OBJC="/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/objc/usr/bin/gcc-4.2" OBJCXX="/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/objcxx/usr/bin/g++-4.2" INSTALL="/usr/bin/install -c" 
make: Entering directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/pngpaste-0.2.3'
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/cc/usr/bin/gcc-4.2 -I/opt/local/include -Os -arch ppc -L/opt/local/lib -Wl,-headerpad_max_install_names -arch ppc -ObjC \
		-framework Foundation -framework AppKit \
		-o pngpaste \
		pngpaste.m
pngpaste.m: In function ‘renderFromBitmap’:
pngpaste.m:72: error: stray ‘@’ in program
pngpaste.m:72: error: expected expression before ‘{’ token
pngpaste.m: In function ‘renderFromPDF’:
pngpaste.m:96: error: stray ‘@’ in program
pngpaste.m:96: error: expected expression before ‘{’ token
pngpaste.m: In function ‘getBitmapImageFileTypeFromFilename’:
pngpaste.m:107: error: stray ‘@’ in program
pngpaste.m:107: error: expected expression before ‘{’ token
pngpaste.m:116: error: ‘NSBitmapImageFileTypePNG’ undeclared (first use in this function)
pngpaste.m:116: error: (Each undeclared identifier is reported only once
pngpaste.m:116: error: for each function it appears in.)
pngpaste.m:123: error: array subscript is not an integer
pngpaste.m: In function ‘main’:
pngpaste.m:226: warning: ‘NSData’ may not respond to ‘-base64EncodedDataWithOptions:’
pngpaste.m:226: warning: (Messages without a matching method signature
pngpaste.m:226: warning: will be assumed to return ‘id’ and accept
pngpaste.m:226: warning: ‘...’ as arguments.)
make: *** [all] Error 1
make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/pngpaste-0.2.3'
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/pngpaste-0.2.3" && /usr/bin/make -j6 -w all CC="/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/cc/usr/bin/gcc-4.2" CXX="/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/cxx/usr/bin/g++-4.2" OBJC="/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/objc/usr/bin/gcc-4.2" OBJCXX="/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_sysutils_pngpaste/pngpaste/work/compwrap/objcxx/usr/bin/g++-4.2" INSTALL="/usr/bin/install -c" 
Exit code: 2
Error: Failed to build pngpaste: command execution failed