configure-bin.ac: I didn't know this file existed.
Add powerpc-linux and powerpc64-linux targets.
TargetPlatform=rs6000-ibm-aix;;
powerpc-apple-darwin*)
TargetPlatform=powerpc-apple-darwin;;
+powerpc-*-linux*)
+ TargetPlatform=powerpc-unknown-linux;;
+powerpc64-*-linux*)
+ TargetPlatform=powerpc64-unknown-linux;;
sparc-sun-sunos4*)
TargetPlatform=sparc-sun-sunos4;;
sparc-sun-solaris2*)