b46 compilation warning

Compiling on solaris 2.7 with gcc, I get the following warning: 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 In file included from /usr/include/signal.h:24, from /apps/public/XEmacs/src/xemacs-21.2.46/lib-src/gnuserv.h:108, from /apps/public/XEmacs/src/xemacs-21.2.46/lib-src/gnuslib.c:36: /usr/include/sys/signal.h:239: warning: `NSIG' redefined ../src/s/usg5-4.h:95: warning: this is the location of the previous definition This is probably harmless, but it's bad that we redefine some constant given in a system header file. Alternatively, perhaps NSIG in usg5-4.h is wrong? On my solaris 2.7 system, NSIG is 46. Ray