Hi Again, Sorry to keep posting about this. There seems to be a lot of confusion trying to get compatibility with various Mac architectures and OS. Sven Peters was able to compile on an intel Mac running leopard using >patch -p1 <patches/flags.diff >patch -p1 <patches/crtimes.diff >./configure CFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch i386" LDFLAGS="-Wl,-syslibroot,/Developer/SDKs/ MacOSX10.4u.sdk -arch ppc -arch i386" >make it works on his intel as well as my PPC. Mac (also leopard) I get this on the configure log below. " C compiler cannot create executables" I would need to compile on tiger PPC Mac to have it be universal and compatible upward with leopard. Thanks Rob D Configured with: /var/tmp/gcc/gcc-5465~16/src/configure --disable- checking -enable-werror --prefix=/usr --mandir=/share/man --enable- languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/ $/-4.0/ --with-gxx-include-dir=/include/c++/4.0.0 --with-slibdir=/usr/ lib --build=i686-apple-darwin9 --program-prefix= --host=powerpc-apple- darwin9 --target=powerpc-apple-darwin9 Thread model: posix gcc version 4.0.1 (Apple Inc. build 5465) configure.sh:2238: $? = 0 configure.sh:2245: gcc -V >&5 gcc-4.0: argument to `-V' is missing configure.sh:2248: $? = 1 configure.sh:2271: checking for C compiler default output file name configure.sh:2298: gcc -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch i386 -Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch i386 conftest.c >&5 ld: library not found for -lcrt1.10.5.o collect2: ld returned 1 exit status ld: library not found for -lcrt1.10.5.o collect2: ld returned 1 exit status lipo: can't open input file: /var/folders/mg/mgMdX2n6F8mI4Jbj8rDLnU++ +TI/-Tmp-//ccwVEjI9.out (No such file or directory) configure.sh:2301: $? = 1 configure.sh:2339: result: configure.sh: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | #define RSYNC_VERSION "3.0.0pre10" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } configure.sh:2346: error: C compiler cannot create executables See `config.log' for more details.