This is a patch to my port of xxgdb 1.08 to Linux.

This patch allows you to build xxgdb under X11R6.
(The X11R6 header files do not work on Linux when SYSV is defined, so this
patch make xxgdb not define SYSV for Linux.)

Have a nice day.
-Sal Valente <svalente@mit.edu>

diff -ur xxgdb-old/Imakefile xxgdb/Imakefile
--- xxgdb-old/Imakefile	Sat Dec 17 04:11:21 1994
+++ xxgdb/Imakefile	Sat Dec  9 00:07:56 1995
@@ -51,7 +51,7 @@
 #endif
 
 #ifdef LinuxArchitecture
-DEFINES = -DSYSV $(DEFGDB)
+DEFINES = -DPOSIX $(DEFGDB)
 #endif
 
 mallocc = #malloc.c
diff -ur xxgdb-old/command.c xxgdb/command.c
--- xxgdb-old/command.c	Mon Jan 10 15:36:59 1994
+++ xxgdb/command.c	Sat Dec  9 00:09:26 1995
@@ -383,24 +383,20 @@
     XtPointer client_data;
     XtPointer call_data;
 {
-#ifdef SYSV 
+#ifdef POSIX
     int status;
 #else
     union wait status;
-#endif /* SYSV */
+#endif
 
     write_dbx("quit\n");
     XtDestroyApplicationContext(app_context);
     kill(dbxpid, SIGKILL);
-#ifdef SYSV
-#if 1 /* instead of ifdef SVR4 */
+#ifdef POSIX
 	status = waitpid(dbxpid, (int *)0, WNOHANG);	/* (MJH) */
 #else
-	waitpid(&status, NULL, WNOHANG);
-#endif	/* SVR4 */
-#else	/* not SYSV */
     wait3(&status, WNOHANG, NULL);
-#endif /* SYSV */
+#endif
     exit(0);
 }
 
@@ -888,7 +884,7 @@
 					  parent, args, n);
     CreateButtons(commandWindow);
 #ifndef GDB /* (PW)12MAR93 : for gdb, use pwd command of gdb */
-#ifndef SYSV 
+#ifndef POSIX
     getwd(cwd);
 #endif
 #endif /* not GDB */
diff -ur xxgdb-old/dialog.c xxgdb/dialog.c
--- xxgdb-old/dialog.c	Mon Nov 29 21:15:48 1993
+++ xxgdb/dialog.c	Sat Dec  9 00:09:54 1995
@@ -235,11 +235,11 @@
 {
 #ifndef GDB
     FalseSignal = TRUE;
-#ifdef SYSV /* (PW)13AUG92:  change SVR4 into SYSV */ /* (MJH) */
+#ifdef POSIX
    kill(-(dbxpid), SIGINT);
 #else
    killpg(dbxpid, SIGINT);
-#endif /* SYSV */
+#endif
 #else      
 	write_dbx("\003");	/* (PW)18FEB91 : seems to work better */
 #endif	/* GDB */
@@ -282,7 +282,7 @@
 {
     FalseSignal = TRUE;
 
-#ifdef SYSV /* (PW)13AUG92:  change SVR4 into SYSV */ /* (MJH) */
+#ifdef POSIX
     kill(-(dbxpid), SIGQUIT);
 #else
     killpg(dbxpid, SIGQUIT);
diff -ur xxgdb-old/filemenu.c xxgdb/filemenu.c
--- xxgdb-old/filemenu.c	Thu Aug 25 23:46:39 1994
+++ xxgdb/filemenu.c	Sat Dec  9 00:10:27 1995
@@ -81,7 +81,7 @@
 #include <X11/Xos.h>
 #include <sys/stat.h>
 
-#ifdef SYSV 
+#ifdef POSIX
 #include <stdio.h>
 #include <sys/param.h>
 #include <sys/types.h>
@@ -94,7 +94,7 @@
 #define	S_IEXEC	00100		/* execute/search permission, owner */
 #endif
 #endif	/* _POSIX_SOURCE */
-#endif	/* SYSV */
+#endif
 
 #ifdef SUNOS4
 #include <dirent.h>
diff -ur xxgdb-old/signals.c xxgdb/signals.c
--- xxgdb-old/signals.c	Sun Aug 14 04:10:27 1994
+++ xxgdb/signals.c	Sat Dec  9 00:13:54 1995
@@ -79,20 +79,20 @@
 static void quit_handler()
 {
 	int pid;
-#ifdef SYSV 
+#ifdef POSIX
     int status;
 #else
     union wait status;
-#endif /* SYSV */
+#endif
 
     /*  wait for the child to report its status; if the child has died, 
      *  exit gracefully.
      */
-#ifdef SYSV 
+#ifdef POSIX
 	pid = waitpid((pid_t)-1, &status, WNOHANG|WUNTRACED);	/* (MJH) */
 #else
    pid =  wait3(&status, WNOHANG|WUNTRACED, NULL);
-#endif /* SYSV */
+#endif
 
 #ifdef EDIT_BUTTON
     /* dont die if sub edit process dies */
@@ -147,7 +147,7 @@
     signal(SIGCHLD, quit_handler);	/* child status has changed */
 }
 
-#ifdef SYSV
+#ifdef POSIX
 
 typedef void (*signal_proc_t)();
 
@@ -160,7 +160,10 @@
     act.sa_handler = proc;
     sigemptyset (&act.sa_mask);
     act.sa_flags = 0;
+#ifdef SA_RESTART
+    act.sa_flags |= SA_RESTART;
+#endif
     return (sigaction (sig, &act, &oact) < 0 ? SIG_ERR : oact.sa_handler);
 }
 
-#endif /* SYSV */
+#endif
diff -ur xxgdb-old/xdbx.c xxgdb/xdbx.c
--- xxgdb-old/xdbx.c	Sat Dec 17 04:12:07 1994
+++ xxgdb/xdbx.c	Sat Dec  9 00:16:52 1995
@@ -74,12 +74,11 @@
 #define XGDBVERSION	"1.08"
 #endif
 
-#ifdef SYSV 
-#   include <stdio.h>
-#   include <stdlib.h>
-#   include <sys/param.h>
+#include <stdio.h>
+#ifdef POSIX
+#include <stdlib.h>
 #endif
-
+#include <sys/param.h>
 #include "global.h"
 #include "bitmaps.h"
 #include "patchlevel.h"
@@ -476,7 +475,7 @@
     progname = argv[0];			/* (MJH) */
         
 #ifndef GDB /* (PW)12MAR93 : for gdb, use pwd command of gdb */
-#ifdef SYSV 
+#ifdef POSIX
     getcwd((char *)cwd, MAXPATHLEN);
 #endif
 #endif /* not GDB */