Hi! I am having trouble compiling on AIX5.2 using gcc version 2.95.3 gcc -c -g -O2 -U__STR__ -D_THREAD_SAFE -D_USE_IRS conftest.c >&5 In file included from /usr/local/lib/gcc-lib/powerpc-ibm-aix4.3.2.0/2.95.3/include/sys/signal.h:340, from /usr/local/lib/gcc-lib/powerpc-ibm-aix4.3.2.0/2.95.3/include/sys/wait.h:53, from /usr/local/lib/gcc-lib/powerpc-ibm-aix4.3.2.0/2.95.3/include/stdlib.h:227, from configure:4906: /usr/include/sys/context.h:169: parse error before `sigset64_t' /usr/include/sys/context.h:169: warning: no semicolon at end of struct or union /usr/include/sys/context.h:172: parse error before `}' Any help would be appreciated. Best regards, David.