* config.gcc (rs6000-ibm-aix[5-9]*): Change to aix51.h. * collect2.c (main): Delete importf. Add ".obj" file extension. (GCC_CHECK_HDR): Handle AIX V5 new magic number. (aix_std_libs): Add additional AIX libraries to skip. * config/rs6000/aix.h (MY_ISCOFF): Add AIX V5 new magic number. * config/rs6000/aix51.h: New file. From-SVN: r39271
