===================================================================
RCS file: /home/cvs/OpenXM/src/kan96xx/Kan/ext.c,v
retrieving revision 1.5
retrieving revision 1.9
diff -u -p -r1.5 -r1.9
--- OpenXM/src/kan96xx/Kan/ext.c	2001/05/04 01:06:23	1.5
+++ OpenXM/src/kan96xx/Kan/ext.c	2002/02/24 10:27:18	1.9
@@ -1,4 +1,4 @@
-/* $OpenXM: OpenXM/src/kan96xx/Kan/ext.c,v 1.4 2000/03/09 12:04:52 takayama Exp $ */
+/* $OpenXM: OpenXM/src/kan96xx/Kan/ext.c,v 1.8 2001/08/21 14:12:46 takayama Exp $ */
 #include <stdio.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -35,9 +35,14 @@ static void mywait() {
 }
 
 #define SIZE_OF_ENVSTACK 5
-static jmp_buf EnvStack[SIZE_OF_ENVSTACK];
+#if defined(__CYGWIN__)
+#define JMP_BUF sigjmp_buf
+#else
+#define JMP_BUF jmp_buf
+#endif
+static JMP_BUF EnvStack[SIZE_OF_ENVSTACK];
 static int Envp = 0;
-static void pushEnv(jmp_buf jb) {
+static void pushEnv(JMP_BUF jb) {
   if (Envp < SIZE_OF_ENVSTACK) {
     *(EnvStack[Envp]) = *jb;
     Envp++;
@@ -46,7 +51,7 @@ static void pushEnv(jmp_buf jb) {
     exit(2);
   }
 }
-static void popEnv(jmp_buf jbp) {
+static void popEnv(JMP_BUF jbp) {
   if (Envp <= 0) {
     fprintf(stderr,"Underflow of EnvStack.\n");
     exit(3);
@@ -81,12 +86,16 @@ struct object Kextension(struct object obj)
   struct object keyo;
   struct object rob = NullObject;
   struct object obj1,obj2,obj3,obj4;
-  int m,i;
+  int m,i,pid;
   int argListc, fdListc;
   char *abc;
   char *abc2;
   extern struct context *CurrentContextp;
+#if (__CYGWIN__)
+  extern sigjmp_buf EnvOfStackMachine;
+#else
   extern jmp_buf EnvOfStackMachine;
+#endif
   extern void ctrlC();
   extern int SigIgn;
   extern errno;
@@ -188,18 +197,22 @@ struct object Kextension(struct object obj)
     if (obj2.tag != Sarray) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. array fdList.");
     obj3 = getoa(obj,3);
     if (obj3.tag != Sinteger) errorKan1("%s\n","[(forkExec) argList fdList sigblock] extension. integer sigblock.");
-    m = KopInteger(obj3);  /* m == 1 : block ctrl-C. */
+    m = KopInteger(obj3);  /* m&1 : block ctrl-C. */
     argListc = getoaSize(obj1);
     fdListc =  getoaSize(obj2);
-    if ((m = fork()) > 0) {
+    if ((pid = fork()) > 0) {
       /* parent */
-      signal(SIGCHLD,mywait); /* to kill Zombie */
-      Mychildren[Mycp++] = m;
+      if (m&2) {
+         /* Do not call singal to turn around a trouble on cygwin. BUG. */
+      }else{
+         signal(SIGCHLD,mywait); /* to kill Zombie */
+      }
+      Mychildren[Mycp++] = pid;
       if (Mycp >= MYCP_SIZE-1) {
         errorKan1("%s\n","Child process table is full.\n");
         Mycp = 0;
       }
-      rob = KpoInteger(m);
+      rob = KpoInteger(pid);
       /* Done */
     }else{
       /* Child */
@@ -208,7 +221,7 @@ struct object Kextension(struct object obj)
         close(KopInteger(getoa(obj2,i)));
       }
       /* execl */
-      if (m == 1) {
+      if (m&1) {
         {
           sigset_t sss;
           sigemptyset(&sss);
@@ -225,6 +238,12 @@ struct object Kextension(struct object obj)
         argv[i] = KopString(getoa(obj1,i));
         argv[i+1] = NULL;
       }
+      
+      if (m&4) {
+	fprintf(stderr,"execv %s\n",argv[0]);
+	sleep(5);
+        fprintf(stderr,">>>\n");
+      }
       execv(argv[0],argv);
       /* This place will never be reached unless execv fails. */
       fprintf(stderr,"forkExec fails: ");
@@ -269,6 +288,14 @@ struct object Kextension(struct object obj)
       errorKan1("%s\n","The number must be 0, 1 or 2.");
     putUserDictionary2(obj2.lc.str,(obj2.rc.op->lc).ival,(obj2.rc.op->rc).ival,
                        m,CurrentContextp->userDictionary);
+  }else if (strcmp(key,"ostype")==0) {
+    rob = newObjectArray(1);
+    /* Hard encode the OS type. */
+#if defined(__CYGWIN__)
+    putoa(rob,0,KpoString("windows"));
+#else
+    putoa(rob,0,KpoString("unix"));
+#endif
   }
 #include "plugin.hh"
   else{