Hi All Is it necessary to use the local native compiler - xlc in this case, to compile gcc ? I have a gcc-4.2.3 installed on AIX and would now like to install gcc 4.3.2. However if I compile with existing gcc then the compiles is extremly slow and almost does not do much. It took about a day to just finish stage-1. I tried to check for any load etc but could not find any issues with the node. Even rebooted and restarted the compiles still the same issue. Then I switched to the native xlc and xlC compilers, the make was fast but got the following error : "./config.h", line 435.9: 1506-213 (S) Macro name inline cannot be redefined. "./config.h", line 435.9: 1506-358 (I) "inline" is defined on line 182 of /cots/gnu/gcc-4.3.2/libiberty/../include/ansidecl.. make[3]: *** [pex-common.o] Error 1 make[3]: Leaving directory `/cots/gnu/build-4.3.2/libiberty' make[2]: *** [all-stage1-libiberty] Error 2 make[2]: Leaving directory `/cots/gnu/build-4.3.2' Any ideas as to what the above is. The following configure was given /cots/gnu/gcc-4.3.2/configure --prefix=/usr/local --disable-multilibs --enable-languages=c,c++,fortran --enable-threads=aix --with-mpfr=/usr/local --with-gmp=/usr/local CC=xlc CXX=xlC Thanks in advance With Regards Vardhan