Leopard SDK fix in MacPorts Wiki problem

[barracuda156]

There is proposed "fix" for 10.5 SDK here: ​https://trac.macports.org/wiki/LeopardSDKFixes

It is problematic, however: libgcc_s.10.5.dylib on 10.5.8 has 4 archs (including ppc64), while libgcc_s.10.5.dylib in 10.6 SDK from Xcode 4 has 3 archs (no ppc64).

Original file vs one extracted from Xcode:

36-217:~ svacchanda$ file /usr/lib/libgcc_s.10.5.dylib 
/usr/lib/libgcc_s.10.5.dylib: Mach-O universal binary with 4 architectures
/usr/lib/libgcc_s.10.5.dylib (for architecture i386):	Mach-O dynamically linked shared library stub i386
/usr/lib/libgcc_s.10.5.dylib (for architecture x86_64):	Mach-O 64-bit dynamically linked shared library stub x86_64
/usr/lib/libgcc_s.10.5.dylib (for architecture ppc):	Mach-O dynamically linked shared library stub ppc
/usr/lib/libgcc_s.10.5.dylib (for architecture ppc64):	Mach-O 64-bit dynamically linked shared library stub ppc64
36-217:~ svacchanda$ file /Users/svacchanda/Desktop/libgcc_s.10.5.dylib 
/Users/svacchanda/Desktop/libgcc_s.10.5.dylib: Mach-O universal binary with 3 architectures
/Users/svacchanda/Desktop/libgcc_s.10.5.dylib (for architecture x86_64):	Mach-O 64-bit dynamically linked shared library stub x86_64
/Users/svacchanda/Desktop/libgcc_s.10.5.dylib (for architecture i386):	Mach-O dynamically linked shared library stub i386
/Users/svacchanda/Desktop/libgcc_s.10.5.dylib (for architecture ppc7400):	Mach-O dynamically linked shared library stub ppc