RT> Compiling on solaris 2.7 with gcc, I get the following warning: RT> gcc -c -g -O3 -Wall -Wno-switch -Winline -Wmissing-prototypes -Wshadow -Wpointer-arith -I. -I../src -I/apps/public/XEmacs/src/xemacs-21.2.46/lib-src -I/apps/public/XEmacs/src/xemacs-21.2.46/src -DHAVE_CONFIG_H -I/apps/public/solaris2.7/usr/openwin/include -I/apps/public/solaris2.7/include -I/usr/dt/include -I/usr/openwin/include /apps/public/XEmacs/src/xemacs-21.2.46/lib-src/gnuslib.c RT> In file included from /usr/include/signal.h:24, RT> from /apps/public/XEmacs/src/xemacs-21.2.46/lib-src/gnuserv.h:108, RT> from /apps/public/XEmacs/src/xemacs-21.2.46/lib-src/gnuslib.c:36: RT> /usr/include/sys/signal.h:239: warning: `NSIG' redefined RT> ../src/s/usg5-4.h:95: warning: this is the location of the previous definition RT> This is probably harmless, but it's bad that we redefine some constant RT> given in a system header file. Yes, this warning is anoying but harmless;-) The only two files that are using NSIG (src/process.c & src/sysdep.c) get the the system definition. I don't know what the reason for the `#ifdef emacs' in src/s/usg5-4.h would be which triggers the (early) inclusion of the system header files? --------------------------------------------------------------------------- #ifdef emacs #include <sys/filio.h> #include <termio.h> #include <sys/ttold.h> #include <signal.h> #include <sys/stream.h> #include <sys/termios.h> #endif --------------------------------------------------------------------------- That's not defined for the lib-src files and than you get the nice warning. -- Marco RT> Alternatively, perhaps NSIG in usg5-4.h is wrong? On my solaris 2.7 RT> system, NSIG is 46. RT> Ray --