Good day, I just want to know what would be right approach to fixing the compile error in tcsh. I use the source code at ftp://ftp.astron.com/pub/tcsh/tcsh-6.18.01.tar.gz I get the following error: gcc -c -g -O2 -I. -I. -D_PATH_TCSHELL='"/usr/local/bin/tcsh"' sh.proc.c sh.proc.c: In function 'pchild': sh.proc.c:155:16: error: storage size of 'w' isn't known make: *** [sh.proc.o] Error 1 Those lines are: #ifdef BSDWAIT union wait w; #else /* !BSDWAIT */ int w; #endif /* !BSDWAIT */ If I just use //#ifdef BSDWAIT // union wait w; //#else /* !BSDWAIT */ int w; //#endif /* !BSDWAIT */ it compiles and works (for months now without an issue). My question really is what should the proper "ifdef" be if I want to send the fix to the tcsh maintainers ? Regards Paul