2006-12-10  Dmitry V. Levin <ldv@altlinux.org>

	Make several global variables static.
	#ifdef definitions of rarely unused functions.
	* defs.h (rflag, tflag, outfname): Remove.
	* strace.c (iflag, interactive, pflag_seen, rflag, tflag,
	outfname, username): Make static.
	* desc.c (sys_getdtablesize): Define only for
	ALPHA || FREEBSD || SUNOS4.
	* file.c (sys_fchroot): Define only for SUNOS4 || SVR4.
	(sys_mkfifo): Define only for FREEBSD.
	* mem.c (sys_sbrk): Define only for FREEBSD || SUNOS4.
	(sys_getpagesize): Define only for
	ALPHA || FREEBSD || IA64 || SUNOS4 || SVR4.
	* net.c (sys_so_socket): Define only for SVR4.
	* process.c (sys_gethostid): Define only for
	FREEBSD || SUNOS4 || SVR4.
	(sys_gethostname): Define only for
	ALPHA || FREEBSD || SUNOS4 || SVR4.
	(sys_setpgrp): Define only for ALPHA || SUNOS4 || SVR4.
	(sys_execv): Define only for SPARC || SPARC64 || SUNOS4.
	* signal.c (sys_sigblock): Define only for FREEBSD || SUNOS4.
	(sys_sighold, sys_sigwait): Define only for SVR4.
	(sys_killpg): Define only for FREEBSD || SUNOS4.
	* stream.c (sys_getmsg): Define only for
	SPARC || SPARC64 || SUNOS4 || SVR4.
	* syscall.c (sys_indir): Define only for SUNOS4.
diff --git a/mem.c b/mem.c
index 618212a..06da6e1 100644
--- a/mem.c
+++ b/mem.c
@@ -70,6 +70,7 @@
 #endif
 }
 
+#if defined(FREEBSD) || defined(SUNOS4)
 int
 sys_sbrk(tcp)
 struct tcb *tcp;
@@ -79,6 +80,7 @@
 	}
 	return RVAL_HEX;
 }
+#endif /* FREEBSD || SUNOS4 */
 
 static const struct xlat mmap_prot[] = {
 	{ PROT_NONE,	"PROT_NONE",	},
@@ -539,6 +541,7 @@
 	return 0;
 }
 
+#if defined(ALPHA) || defined(FREEBSD) || defined(IA64) || defined(SUNOS4) || defined(SVR4)
 int
 sys_getpagesize(tcp)
 struct tcb *tcp;
@@ -547,6 +550,7 @@
 		return RVAL_HEX;
 	return 0;
 }
+#endif /* ALPHA || FREEBSD || IA64 || SUNOS4 || SVR4 */
 
 #if defined(LINUX) && defined(__i386__)
 void