OS/2 tweaks for usethreads build (from Rocco Caputo

<troc@netrus.net>)

p4raw-id: //depot/perl@6149

13 files changed, 153 insertions, 136 deletions

diff --git a/Configure b/Configure
index 83a685d303..9493fbc54c 100755
--- a/Configure
+++ b/Configure
@@ -3277,6 +3277,7 @@ while test "$type"; do
 		true)
 			case "$ansexp" in
 			/*) value="$ansexp" ;;
+			[a-zA-Z]:/*) value="$ansexp" ;;
 			*)
 				redo=true
 				case "$already" in
diff --git a/hints/os2.sh b/hints/os2.sh
index 1d9df3683f..0e9f786d25 100644
--- a/hints/os2.sh
+++ b/hints/os2.sh
@@ -93,7 +93,7 @@ if test "$libemx" = "X"; then echo "Cannot find C library!" >&2; fi
 libpth="`echo \"$LIBRARY_PATH\" | tr ';\\\' ' /'`"
 libpth="$libpth $libemx/mt $libemx"
 
-set `emxrev -f emxlibcm`
+set `cmd /c emxrev -f emxlibcm`
 emxcrtrev=$5
 # indented to not put it into config.sh
   _defemxcrtrev=-D_EMX_CRT_REV_=$emxcrtrev
diff --git a/makedef.pl b/makedef.pl
index 6fae88be9e..ae68674aa7 100644
--- a/makedef.pl
+++ b/makedef.pl
@@ -157,7 +157,7 @@ elsif ($PLATFORM eq 'os2') {
     # print STDERR "'$dll' <= '$define{PERL_DLL}'\n";
     print <<"---EOP---";
 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
-DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $CONFIG_ARGS'
+DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter'
 STACKSIZE 32768
 CODE LOADONCALL
 DATA LOADONCALL NONSHARED MULTIPLE
diff --git a/os2/Makefile.SHs b/os2/Makefile.SHs
index 3a50dc737c..f5a0c15634 100644
--- a/os2/Makefile.SHs
+++ b/os2/Makefile.SHs
@@ -66,7 +66,7 @@ $(PERL_DLL): $(obj) perl5.def perl$(OBJ_EXT)
 
 perl5.olddef: perl.linkexp
 	echo "LIBRARY '$(PERL_DLL_BASE)' INITINSTANCE TERMINSTANCE"	> $@
-	echo DESCRIPTION "'Perl interpreter v$(PERL_FULLVERSION), export autogenerated, built with $(CONFIG_ARGS)'"	>>$@
+	echo DESCRIPTION "'Perl interpreter v$(PERL_FULLVERSION), export autogenerated'"	>>$@
 	echo STACKSIZE 32768				>>$@
 	echo CODE LOADONCALL				>>$@
 	echo DATA LOADONCALL NONSHARED MULTIPLE		>>$@
diff --git a/os2/OS2/REXX/t/rx_dllld.t b/os2/OS2/REXX/t/rx_dllld.t
index 15362d78e9..406bd63a33 100644
--- a/os2/OS2/REXX/t/rx_dllld.t
+++ b/os2/OS2/REXX/t/rx_dllld.t
@@ -12,11 +12,11 @@ use OS2::REXX;
 
 $path = $ENV{LIBPATH} || $ENV{PATH} or die;
 foreach $dir (split(';', $path)) {
-  next unless -f "$dir/YDBAUTIL.DLL";
-  $found = "$dir/YDBAUTIL.DLL";
+  next unless -f "$dir/RXU.DLL";
+  $found = "$dir/RXU.DLL";
   last;
 }
-$found or print "1..0 # skipped: cannot find YDBAUTIL.DLL\n" and exit;
+$found or print "1..0 # skipped: cannot find RXU.DLL\n" and exit;
 
 print "1..5\n";
 
diff --git a/os2/OS2/REXX/t/rx_objcall.t b/os2/OS2/REXX/t/rx_objcall.t
index 8bdf90564d..b1154757d4 100644
--- a/os2/OS2/REXX/t/rx_objcall.t
+++ b/os2/OS2/REXX/t/rx_objcall.t
@@ -13,22 +13,21 @@ use OS2::REXX;
 #
 # DLL
 #
-$ydba = load OS2::REXX "ydbautil" 
-  or print "1..0 # skipped: cannot find YDBAUTIL.DLL\n" and exit;
+$rxu = load OS2::REXX "rxu" 
+  or print "1..0 # skipped: cannot find RXU.DLL\n" and exit;
 print "1..5\n", "ok 1\n";
 
 #
 # function
 #
-@pid = $ydba->RxProcId();
+@pid = $rxu->RxProcId();
 @pid == 1 ? print "ok 2\n" : print "not ok 2\n";
 @res = split " ", $pid[0];
 print "ok 3\n" if $res[0] == $$;
-@pid = $ydba->RxProcId();
+@pid = $rxu->RxProcId();
 @res = split " ", $pid[0];
 print "ok 4\n" if $res[0] == $$;
 print "# @pid\n";
 
-eval { $ydba->nixda(); };
+eval { $rxu->nixda(); };
 print "ok 5\n" if $@ =~ /^Can't find entry 'nixda\'/;
-
diff --git a/os2/OS2/REXX/t/rx_tievar.t b/os2/OS2/REXX/t/rx_tievar.t
index 5f43f4e5fc..9c9ea7d466 100644
--- a/os2/OS2/REXX/t/rx_tievar.t
+++ b/os2/OS2/REXX/t/rx_tievar.t
@@ -13,8 +13,8 @@ use OS2::REXX;
 #
 # DLL
 #
-load OS2::REXX "ydbautil"
-  or print "1..0 # skipped: cannot find YDBAUTIL.DLL\n" and exit;
+load OS2::REXX "rxu"
+  or print "1..0 # skipped: cannot find RXU.DLL\n" and exit;
 
 print "1..19\n";
 
diff --git a/os2/OS2/REXX/t/rx_tieydb.t b/os2/OS2/REXX/t/rx_tieydb.t
index 1653a2081c..ec6bfca20e 100644
--- a/os2/OS2/REXX/t/rx_tieydb.t
+++ b/os2/OS2/REXX/t/rx_tieydb.t
@@ -9,8 +9,8 @@ BEGIN {
 }
 
 use OS2::REXX;
-$rx = load OS2::REXX "ydbautil"     # from RXU17.ZIP
-  or print "1..0 # skipped: cannot find YDBAUTIL.DLL\n" and exit;
+$rx = load OS2::REXX "RXU"     # from RXU1a.ZIP
+  or print "1..0 # skipped: cannot find RXU.DLL\n" and exit;
 
 print "1..7\n", "ok 1\n";
 
diff --git a/os2/os2.c b/os2/os2.c
index 97e8899c35..45e1d2fb65 100644
--- a/os2/os2.c
+++ b/os2/os2.c
@@ -66,7 +66,7 @@ pthread_join(perl_os_thread tid, void **status)
 	break;
     case pthreads_st_waited:
 	MUTEX_UNLOCK(&start_thread_mutex);
-	croak("join with a thread with a waiter");
+	Perl_croak_nocontext("join with a thread with a waiter");
 	break;
     case pthreads_st_run:
 	thread_join_data[tid].state = pthreads_st_waited;
@@ -79,7 +79,7 @@ pthread_join(perl_os_thread tid, void **status)
 	break;
     default:
 	MUTEX_UNLOCK(&start_thread_mutex);
-	croak("join: unknown thread state: '%s'", 
+	Perl_croak_nocontext("join: unknown thread state: '%s'", 
 	      pthreads_states[thread_join_data[tid].state]);
 	break;
     }
@@ -107,7 +107,7 @@ pthread_startit(void *arg)
 	}
     }
     if (thread_join_data[tid].state != pthreads_st_none)
-	croak("attempt to reuse thread id %i", tid);
+	Perl_croak_nocontext("attempt to reuse thread id %i", tid);
     thread_join_data[tid].state = pthreads_st_run;
     /* Now that we copied/updated the guys, we may release the caller... */
     MUTEX_UNLOCK(&start_thread_mutex);
@@ -146,7 +146,7 @@ pthread_detach(perl_os_thread tid)
     switch (thread_join_data[tid].state) {
     case pthreads_st_waited:
 	MUTEX_UNLOCK(&start_thread_mutex);
-	croak("detach on a thread with a waiter");
+	Perl_croak_nocontext("detach on a thread with a waiter");
 	break;
     case pthreads_st_run:
 	thread_join_data[tid].state = pthreads_st_detached;
@@ -154,7 +154,7 @@ pthread_detach(perl_os_thread tid)
 	break;
     default:
 	MUTEX_UNLOCK(&start_thread_mutex);
-	croak("detach: unknown thread state: '%s'", 
+	Perl_croak_nocontext("detach: unknown thread state: '%s'", 
 	      pthreads_states[thread_join_data[tid].state]);
 	break;
     }
@@ -168,11 +168,11 @@ os2_cond_wait(perl_cond *c, perl_mutex *m)
     int rc;
     STRLEN n_a;
     if ((rc = DosResetEventSem(*c,&n_a)) && (rc != ERROR_ALREADY_RESET))
-	croak("panic: COND_WAIT-reset: rc=%i", rc);		
+	Perl_croak_nocontext("panic: COND_WAIT-reset: rc=%i", rc);		
     if (m) MUTEX_UNLOCK(m);					
     if (CheckOSError(DosWaitEventSem(*c,SEM_INDEFINITE_WAIT))
 	&& (rc != ERROR_INTERRUPT))
-	croak("panic: COND_WAIT: rc=%i", rc);		
+	Perl_croak_nocontext("panic: COND_WAIT: rc=%i", rc);		
     if (rc == ERROR_INTERRUPT)
 	errno = EINTR;
     if (m) MUTEX_LOCK(m);					
@@ -199,12 +199,12 @@ loadByOrd(char *modname, ULONG ord)
 	if ((!hdosc && CheckOSError(DosLoadModule(buf, sizeof buf, 
 						  modname, &hdosc)))
 	    || CheckOSError(DosQueryProcAddr(hdosc, loadOrd[ord], NULL, &fcn)))
-	    croak("This version of OS/2 does not support %s.%i", 
+	    Perl_croak_nocontext("This version of OS/2 does not support %s.%i", 
 		  modname, loadOrd[ord]);
 	ExtFCN[ord] = fcn;
     } 
     if ((long)ExtFCN[ord] == -1) 
-	croak("panic queryaddr");
+	Perl_croak_nocontext("panic queryaddr");
 }
 
 void 
@@ -227,11 +227,11 @@ init_PMWIN_entries(void)
 	return;
 
     if (CheckOSError(DosLoadModule(buf, sizeof buf, "pmwin", &hpmwin)))
-	croak("This version of OS/2 does not support pmwin: error in %s", buf);
+	Perl_croak_nocontext("This version of OS/2 does not support pmwin: error in %s", buf);
     while (i <= 5) {
 	if (CheckOSError(DosQueryProcAddr(hpmwin, ords[i], NULL, 
 					  ((PFN*)&PMWIN_entries)+i)))
-	    croak("This version of OS/2 does not support pmwin.%d", ords[i]);
+	    Perl_croak_nocontext("This version of OS/2 does not support pmwin.%d", ords[i]);
 	i++;
     }
 }
@@ -277,7 +277,7 @@ sys_prio(pid)
   }
   if (pid != psi->procdata->pid) {
       Safefree(psi);
-      croak("panic: wrong pid in sysinfo");
+      Perl_croak_nocontext("panic: wrong pid in sysinfo");
   }
   prio = psi->procdata->threads->priority;
   Safefree(psi);
@@ -373,8 +373,9 @@ spawn_sighandler(int sig)
 }
 
 static int
-result(int flag, int pid)
+result(pTHX_ int flag, int pid)
 {
+        dTHR;
 	int r, status;
 	Signal_t (*ihand)();     /* place to save signal during system() */
 	Signal_t (*qhand)();     /* place to save signal during system() */
@@ -441,7 +442,7 @@ file_type(char *path)
     ULONG apptype;
     
     if (!(_emx_env & 0x200)) 
-	croak("file_type not implemented on DOS"); /* not OS/2. */
+	Perl_croak_nocontext("file_type not implemented on DOS"); /* not OS/2. */
     if (CheckOSError(DosQueryAppType(path, &apptype))) {
 	switch (rc) {
 	case ERROR_FILE_NOT_FOUND:
@@ -464,12 +465,7 @@ static ULONG os2_mytype;
 /* global PL_Argv[] contains arguments. */
 
 int
-do_spawn_ve(really, flag, execf, inicmd, addflag)
-SV *really;
-U32 flag;
-U32 execf;
-char *inicmd;
-U32 addflag;
+do_spawn_ve(pTHX_ SV *really, U32 flag, U32 execf, char *inicmd, U32 addflag)
 {
     dTHR;
 	int trueflag = flag;
@@ -541,7 +537,7 @@ U32 addflag;
 		    if (flag == P_NOWAIT)
 			flag = P_PM;
 		    else if ((flag & 7) != P_PM && (flag & 7) != P_SESSION)
-			warn("Starting PM process with flag=%d, mytype=%d",
+			Perl_warner(aTHX_ WARN_EXEC, "Starting PM process with flag=%d, mytype=%d",
 			     flag, os2_mytype);
 		}
 	    }
@@ -552,7 +548,7 @@ U32 addflag;
 		    if (flag == P_NOWAIT)
 			flag = P_SESSION;
 		    else if ((flag & 7) != P_SESSION)
-			warn("Starting Full Screen process with flag=%d, mytype=%d",
+			Perl_warner(aTHX_ WARN_EXEC, "Starting Full Screen process with flag=%d, mytype=%d",
 			     flag, os2_mytype);
 		}
 	    }
@@ -584,7 +580,7 @@ U32 addflag;
 	}
 
 #if 0
-	rc = result(trueflag, spawnvp(flag,tmps,PL_Argv));
+	rc = result(aTHX_ trueflag, spawnvp(flag,tmps,PL_Argv));
 #else
 	if (execf == EXECF_TRUEEXEC)
 	    rc = execvp(tmps,PL_Argv);
@@ -593,7 +589,7 @@ U32 addflag;
 	else if (execf == EXECF_SPAWN_NOWAIT)
 	    rc = spawnvp(flag,tmps,PL_Argv);
         else				/* EXECF_SPAWN, EXECF_SPAWN_BYFLAG */
-	    rc = result(trueflag, 
+	    rc = result(aTHX_ trueflag, 
 			spawnvp(flag,tmps,PL_Argv));
 #endif 
 	if (rc < 0 && pass == 1
@@ -618,7 +614,7 @@ U32 addflag;
                     if (l >= sizeof scrbuf) {
                        Safefree(scr);
                      longbuf:
-                       warn("Size of scriptname too big: %d", l);
+                       Perl_warner(aTHX_ WARN_EXEC, "Size of scriptname too big: %d", l);
 		       rc = -1;
 		       goto finish;
                     }
@@ -654,7 +650,7 @@ U32 addflag;
 		    }
 		    if (fclose(file) != 0) { /* Failure */
 		      panic_file:
-			warn("Error reading \"%s\": %s", 
+			Perl_warner(aTHX_ WARN_EXEC, "Error reading \"%s\": %s", 
 			     scr, Strerror(errno));
 			buf[0] = 0;	/* Not #! */
 			goto doshell_args;
@@ -698,7 +694,7 @@ U32 addflag;
 			*s++ = 0;
 		    }
 		    if (nargs == -1) {
-			warn("Too many args on %.*s line of \"%s\"",
+			Perl_warner(aTHX_ WARN_EXEC, "Too many args on %.*s line of \"%s\"",
 			     s1 - buf, buf, scr);
 			nargs = 4;
 			argsp = fargs;
@@ -820,8 +816,9 @@ U32 addflag;
 
 /* Try converting 1-arg form to (usually shell-less) multi-arg form. */
 int
-do_spawn3(char *cmd, int execf, int flag)
+do_spawn3(pTHX_ char *cmd, int execf, int flag)
 {
+    dTHR;
     register char **a;
     register char *s;
     char flags[10];
@@ -905,7 +902,7 @@ do_spawn3(char *cmd, int execf, int flag)
                 rc = spawnl(flag,shell,shell,copt,cmd,(char*)0);
 	    else {
 		/* In the ak code internal P_NOWAIT is P_WAIT ??? */
-		rc = result(P_WAIT,
+		rc = result(aTHX_ P_WAIT,
 			    spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0));
 		if (rc < 0 && ckWARN(WARN_EXEC))
 		    Perl_warner(aTHX_ WARN_EXEC, "Can't %s \"%s\": %s", 
@@ -936,7 +933,7 @@ do_spawn3(char *cmd, int execf, int flag)
     }
     *a = Nullch;
     if (PL_Argv[0])
-	rc = do_spawn_ve(NULL, flag, execf, cmd, mergestderr);
+	rc = do_spawn_ve(aTHX_ NULL, flag, execf, cmd, mergestderr);
     else
     	rc = -1;
     if (news)
@@ -947,10 +944,7 @@ do_spawn3(char *cmd, int execf, int flag)
 
 /* Array spawn.  */
 int
-do_aspawn(really,mark,sp)
-SV *really;
-register SV **mark;
-register SV **sp;
+os2_do_aspawn(pTHX_ SV *really, register SV **mark, register SV **sp)
 {
     dTHR;
     register char **a;
@@ -978,9 +972,9 @@ register SV **sp;
 	*a = Nullch;
 
 	if (flag_set && (a == PL_Argv + 1)) { /* One arg? */
-	    rc = do_spawn3(a[-1], EXECF_SPAWN_BYFLAG, flag);
+	    rc = do_spawn3(aTHX_ a[-1], EXECF_SPAWN_BYFLAG, flag);
 	} else
-	    rc = do_spawn_ve(really, flag, EXECF_SPAWN, NULL, 0);
+	    rc = do_spawn_ve(aTHX_ really, flag, EXECF_SPAWN, NULL, 0);
     } else
     	rc = -1;
     do_execfree();
@@ -988,38 +982,36 @@ register SV **sp;
 }
 
 int
-do_spawn(cmd)
-char *cmd;
+os2_do_spawn(pTHX_ char *cmd)
 {
-    return do_spawn3(cmd, EXECF_SPAWN, 0);
+    dTHR;
+    return do_spawn3(aTHX_ cmd, EXECF_SPAWN, 0);
 }
 
 int
-do_spawn_nowait(cmd)
-char *cmd;
+do_spawn_nowait(pTHX_ char *cmd)
 {
-    return do_spawn3(cmd, EXECF_SPAWN_NOWAIT,0);
+    dTHR;
+    return do_spawn3(aTHX_ cmd, EXECF_SPAWN_NOWAIT,0);
 }
 
 bool
-do_exec(cmd)
-char *cmd;
+Perl_do_exec(pTHX_ char *cmd)
 {
-    do_spawn3(cmd, EXECF_EXEC, 0);
+    dTHR;
+    do_spawn3(aTHX_ cmd, EXECF_EXEC, 0);
     return FALSE;
 }
 
 bool
-os2exec(cmd)
-char *cmd;
+os2exec(pTHX_ char *cmd)
 {
-    return do_spawn3(cmd, EXECF_TRUEEXEC, 0);
+    dTHR;
+    return do_spawn3(aTHX_ cmd, EXECF_TRUEEXEC, 0);
 }
 
 PerlIO *
-my_syspopen(cmd,mode)
-char	*cmd;
-char	*mode;
+my_syspopen(pTHX_ char *cmd, char *mode)
 {
 #ifndef USE_POPEN
 
@@ -1069,7 +1061,7 @@ char	*mode;
     fcntl(p[this], F_SETFD, FD_CLOEXEC);
     if (newfd != -1)
 	fcntl(newfd, F_SETFD, FD_CLOEXEC);
-    pid = do_spawn_nowait(cmd);
+    pid = do_spawn_nowait(aTHX_ cmd);
     if (newfd == -1)
 	close(*mode == 'r');		/* It was closed initially */
     else if (newfd != (*mode == 'r')) {	/* Probably this check is not needed */
@@ -1124,7 +1116,7 @@ char	*mode;
 int
 fork(void)
 {
-    croak(PL_no_func, "Unsupported function fork");
+    Perl_croak_nocontext(PL_no_func, "Unsupported function fork");
     errno = EINVAL;
     return -1;
 }
@@ -1150,7 +1142,7 @@ tcp0(char *name)
     static BYTE buf[20];
     PFN fcn;
 
-    if (!(_emx_env & 0x200)) croak("%s requires OS/2", name); /* Die if not OS/2. */
+    if (!(_emx_env & 0x200)) Perl_croak_nocontext("%s requires OS/2", name); /* Die if not OS/2. */
     if (!htcp)
 	DosLoadModule(buf, sizeof buf, "tcp32dll", &htcp);
     if (htcp && DosQueryProcAddr(htcp, 0, name, &fcn) == 0)
@@ -1164,7 +1156,7 @@ tcp1(char *name, int arg)
     static BYTE buf[20];
     PFN fcn;
 
-    if (!(_emx_env & 0x200)) croak("%s requires OS/2", name); /* Die if not OS/2. */
+    if (!(_emx_env & 0x200)) Perl_croak_nocontext("%s requires OS/2", name); /* Die if not OS/2. */
     if (!htcp)
 	DosLoadModule(buf, sizeof buf, "tcp32dll", &htcp);
     if (htcp && DosQueryProcAddr(htcp, 0, name, &fcn) == 0)
@@ -1230,7 +1222,7 @@ sys_alloc(int size) {
     if (rc == ERROR_NOT_ENOUGH_MEMORY) {
 	return (void *) -1;
     } else if ( rc ) 
-	croak("Got an error from DosAllocMem: %li", (long)rc);
+	Perl_croak_nocontext("Got an error from DosAllocMem: %li", (long)rc);
     return got;
 }
 
@@ -1264,7 +1256,7 @@ XS(XS_File__Copy_syscopy)
 {
     dXSARGS;
     if (items < 2 || items > 3)
-	croak("Usage: File::Copy::syscopy(src,dst,flag=0)");
+	Perl_croak_nocontext("Usage: File::Copy::syscopy(src,dst,flag=0)");
     {
 	STRLEN n_a;
 	char *	src = (char *)SvPV(ST(0),n_a);
@@ -1288,8 +1280,7 @@ XS(XS_File__Copy_syscopy)
 #include "patchlevel.h"
 
 char *
-mod2fname(sv)
-     SV   *sv;
+mod2fname(pTHX_ SV *sv)
 {
     static char fname[9];
     int pos = 6, len, avlen;
@@ -1299,14 +1290,14 @@ mod2fname(sv)
     char *s;
     STRLEN n_a;
 
-    if (!SvROK(sv)) croak("Not a reference given to mod2fname");
+    if (!SvROK(sv)) Perl_croak_nocontext("Not a reference given to mod2fname");
     sv = SvRV(sv);
     if (SvTYPE(sv) != SVt_PVAV) 
-      croak("Not array reference given to mod2fname");
+      Perl_croak_nocontext("Not array reference given to mod2fname");
 
     avlen = av_len((AV*)sv);
     if (avlen < 0) 
-      croak("Empty array reference given to mod2fname");
+      Perl_croak_nocontext("Empty array reference given to mod2fname");
 
     s = SvPV(*av_fetch((AV*)sv, avlen, FALSE), n_a);
     strncpy(fname, s, 8);
@@ -1338,12 +1329,12 @@ XS(XS_DynaLoader_mod2fname)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: DynaLoader::mod2fname(sv)");
+	Perl_croak_nocontext("Usage: DynaLoader::mod2fname(sv)");
     {
 	SV *	sv = ST(0);
 	char *	RETVAL;
 
-	RETVAL = mod2fname(sv);
+	RETVAL = mod2fname(aTHX_ sv);
 	ST(0) = sv_newmortal();
 	sv_setpv((SV*)ST(0), RETVAL);
     }
@@ -1374,8 +1365,9 @@ os2error(int rc)
 }
 
 char *
-os2_execname(void)
+os2_execname(pTHX)
 {
+  dTHR;
   char buf[300], *p;
 
   if (_execname(buf, sizeof buf) != 0)
@@ -1412,7 +1404,7 @@ perllib_mangle(char *s, unsigned int l)
 	    }
 	    newl = strlen(newp);
 	    if (newl == 0 || oldl == 0) {
-		croak("Malformed PERLLIB_PREFIX");
+		Perl_croak_nocontext("Malformed PERLLIB_PREFIX");
 	    }
 	    strcpy(ret, newp);
 	    s = ret;
@@ -1434,7 +1426,7 @@ perllib_mangle(char *s, unsigned int l)
 	return s;
     }
     if (l + newl - oldl > STATIC_FILE_LENGTH || newl > STATIC_FILE_LENGTH) {
-	croak("Malformed PERLLIB_PREFIX");
+	Perl_croak_nocontext("Malformed PERLLIB_PREFIX");
     }
     strcpy(ret + newl, s + oldl);
     return ret;
@@ -1467,7 +1459,7 @@ Perl_Register_MQ(int serve)
 	static int cnt;
 	if (cnt++)
 	    _exit(188);			/* Panic can try to create a window. */
-	croak("Cannot create a message queue, or morph to a PM application");
+	Perl_croak_nocontext("Cannot create a message queue, or morph to a PM application");
     }
     return Perl_hmq;
 }
@@ -1481,11 +1473,11 @@ Perl_Serve_Messages(int force)
     if (Perl_hmq_servers && !force)
 	return 0;
     if (!Perl_hmq_refcnt)
-	croak("No message queue");
+	Perl_croak_nocontext("No message queue");
     while ((*PMWIN_entries.PeekMsg)(Perl_hab, &msg, NULLHANDLE, 0, 0, PM_REMOVE)) {
 	cnt++;
 	if (msg.msg == WM_QUIT)
-	    croak("QUITing...");
+	    Perl_croak_nocontext("QUITing...");
 	(*PMWIN_entries.DispatchMsg)(Perl_hab, &msg);
     }
     return cnt;
@@ -1499,7 +1491,7 @@ Perl_Process_Messages(int force, I32 *cntp)
     if (Perl_hmq_servers && !force)
 	return 0;
     if (!Perl_hmq_refcnt)
-	croak("No message queue");
+	Perl_croak_nocontext("No message queue");
     while ((*PMWIN_entries.GetMsg)(Perl_hab, &msg, NULLHANDLE, 0, 0)) {
 	if (cntp)
 	    (*cntp)++;
@@ -1509,7 +1501,7 @@ Perl_Process_Messages(int force, I32 *cntp)
 	if (msg.msg == WM_CREATE)
 	    return +1;
     }
-    croak("QUITing...");
+    Perl_croak_nocontext("QUITing...");
 }
 
 void
@@ -1525,7 +1517,7 @@ Perl_Deregister_MQ(int serve)
 	if (pib->pib_ultype == 3)		/* 3 is PM */
 	    pib->pib_ultype = Perl_os2_initial_mode;
 	else
-	    warn("Unexpected program mode %d when morphing back from PM",
+	    Perl_warn_nocontext("Unexpected program mode %d when morphing back from PM",
 		 pib->pib_ultype);
     }
 }
@@ -1549,7 +1541,7 @@ XS(XS_OS2_Error)
 {
     dXSARGS;
     if (items != 2)
-	croak("Usage: OS2::Error(harderr, exception)");
+	Perl_croak_nocontext("Usage: OS2::Error(harderr, exception)");
     {
 	int	arg1 = SvIV(ST(0));
 	int	arg2 = SvIV(ST(1));
@@ -1559,7 +1551,7 @@ XS(XS_OS2_Error)
 	unsigned long rc;
 
 	if (CheckOSError(DosError(a)))
-	    croak("DosError(%d) failed", a);
+	    Perl_croak_nocontext("DosError(%d) failed", a);
 	ST(0) = sv_newmortal();
 	if (DOS_harderr_state >= 0)
 	    sv_setiv(ST(0), DOS_harderr_state);
@@ -1574,7 +1566,7 @@ XS(XS_OS2_Errors2Drive)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: OS2::Errors2Drive(drive)");
+	Perl_croak_nocontext("Usage: OS2::Errors2Drive(drive)");
     {
 	STRLEN n_a;
 	SV  *sv = ST(0);
@@ -1584,12 +1576,12 @@ XS(XS_OS2_Errors2Drive)
 	unsigned long rc;
 
 	if (suppress && !isALPHA(drive))
-	    croak("Non-char argument '%c' to OS2::Errors2Drive()", drive);
+	    Perl_croak_nocontext("Non-char argument '%c' to OS2::Errors2Drive()", drive);
 	if (CheckOSError(DosSuppressPopUps((suppress
 					    ? SPU_ENABLESUPPRESSION 
 					    : SPU_DISABLESUPPRESSION),
 					   drive)))
-	    croak("DosSuppressPopUps(%c) failed", drive);
+	    Perl_croak_nocontext("DosSuppressPopUps(%c) failed", drive);
 	ST(0) = sv_newmortal();
 	if (DOS_suppression_state > 0)
 	    sv_setpvn(ST(0), &DOS_suppression_state, 1);
@@ -1632,7 +1624,7 @@ XS(XS_OS2_SysInfo)
 {
     dXSARGS;
     if (items != 0)
-	croak("Usage: OS2::SysInfo()");
+	Perl_croak_nocontext("Usage: OS2::SysInfo()");
     {
 	ULONG   si[QSV_MAX] = {0};	/* System Information Data Buffer */
 	APIRET  rc	= NO_ERROR;	/* Return code            */
@@ -1642,7 +1634,7 @@ XS(XS_OS2_SysInfo)
 					 QSV_MAX, /* information */
 					 (PVOID)si,
 					 sizeof(si))))
-	    croak("DosQuerySysInfo() failed");
+	    Perl_croak_nocontext("DosQuerySysInfo() failed");
 	EXTEND(SP,2*QSV_MAX);
 	while (i < QSV_MAX) {
 	    ST(j) = sv_newmortal();
@@ -1659,7 +1651,7 @@ XS(XS_OS2_BootDrive)
 {
     dXSARGS;
     if (items != 0)
-	croak("Usage: OS2::BootDrive()");
+	Perl_croak_nocontext("Usage: OS2::BootDrive()");
     {
 	ULONG   si[1] = {0};	/* System Information Data Buffer */
 	APIRET  rc    = NO_ERROR;	/* Return code            */
@@ -1667,7 +1659,7 @@ XS(XS_OS2_BootDrive)
 	
 	if (CheckOSError(DosQuerySysInfo(QSV_BOOT_DRIVE, QSV_BOOT_DRIVE,
 					 (PVOID)si, sizeof(si))))
-	    croak("DosQuerySysInfo() failed");
+	    Perl_croak_nocontext("DosQuerySysInfo() failed");
 	ST(0) = sv_newmortal();
 	c = 'a' - 1 + si[0];
 	sv_setpvn(ST(0), &c, 1);
@@ -1679,7 +1671,7 @@ XS(XS_OS2_MorphPM)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: OS2::MorphPM(serve)");
+	Perl_croak_nocontext("Usage: OS2::MorphPM(serve)");
     {
 	bool  serve = SvOK(ST(0));
 	unsigned long   pmq = perl_hmq_GET(serve);
@@ -1694,7 +1686,7 @@ XS(XS_OS2_UnMorphPM)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: OS2::UnMorphPM(serve)");
+	Perl_croak_nocontext("Usage: OS2::UnMorphPM(serve)");
     {
 	bool  serve = SvOK(ST(0));
 
@@ -1707,7 +1699,7 @@ XS(XS_OS2_Serve_Messages)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: OS2::Serve_Messages(force)");
+	Perl_croak_nocontext("Usage: OS2::Serve_Messages(force)");
     {
 	bool  force = SvOK(ST(0));
 	unsigned long   cnt = Perl_Serve_Messages(force);
@@ -1722,7 +1714,7 @@ XS(XS_OS2_Process_Messages)
 {
     dXSARGS;
     if (items < 1 || items > 2)
-	croak("Usage: OS2::Process_Messages(force [, cnt])");
+	Perl_croak_nocontext("Usage: OS2::Process_Messages(force [, cnt])");
     {
 	bool  force = SvOK(ST(0));
 	unsigned long   cnt;
@@ -1733,7 +1725,7 @@ XS(XS_OS2_Process_Messages)
 	    int fake = SvIV(sv);	/* Force SvIVX */
 	    
 	    if (!SvIOK(sv))
-		croak("Can't upgrade count to IV");
+		Perl_croak_nocontext("Can't upgrade count to IV");
 	    cntp = &SvIVX(sv);
 	}
 	cnt =  Perl_Process_Messages(force, cntp);
@@ -1747,7 +1739,7 @@ XS(XS_Cwd_current_drive)
 {
     dXSARGS;
     if (items != 0)
-	croak("Usage: Cwd::current_drive()");
+	Perl_croak_nocontext("Usage: Cwd::current_drive()");
     {
 	char	RETVAL;
 
@@ -1762,7 +1754,7 @@ XS(XS_Cwd_sys_chdir)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: Cwd::sys_chdir(path)");
+	Perl_croak_nocontext("Usage: Cwd::sys_chdir(path)");
     {
 	STRLEN n_a;
 	char *	path = (char *)SvPV(ST(0),n_a);
@@ -1779,7 +1771,7 @@ XS(XS_Cwd_change_drive)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: Cwd::change_drive(d)");
+	Perl_croak_nocontext("Usage: Cwd::change_drive(d)");
     {
 	STRLEN n_a;
 	char	d = (char)*SvPV(ST(0),n_a);
@@ -1796,7 +1788,7 @@ XS(XS_Cwd_sys_is_absolute)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: Cwd::sys_is_absolute(path)");
+	Perl_croak_nocontext("Usage: Cwd::sys_is_absolute(path)");
     {
 	STRLEN n_a;
 	char *	path = (char *)SvPV(ST(0),n_a);
@@ -1813,7 +1805,7 @@ XS(XS_Cwd_sys_is_rooted)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: Cwd::sys_is_rooted(path)");
+	Perl_croak_nocontext("Usage: Cwd::sys_is_rooted(path)");
     {
 	STRLEN n_a;
 	char *	path = (char *)SvPV(ST(0),n_a);
@@ -1830,7 +1822,7 @@ XS(XS_Cwd_sys_is_relative)
 {
     dXSARGS;
     if (items != 1)
-	croak("Usage: Cwd::sys_is_relative(path)");
+	Perl_croak_nocontext("Usage: Cwd::sys_is_relative(path)");
     {
 	STRLEN n_a;
 	char *	path = (char *)SvPV(ST(0),n_a);
@@ -1847,7 +1839,7 @@ XS(XS_Cwd_sys_cwd)
 {
     dXSARGS;
     if (items != 0)
-	croak("Usage: Cwd::sys_cwd()");
+	Perl_croak_nocontext("Usage: Cwd::sys_cwd()");
     {
 	char p[MAXPATHLEN];
 	char *	RETVAL;
@@ -1862,7 +1854,7 @@ XS(XS_Cwd_sys_abspath)
 {
     dXSARGS;
     if (items < 1 || items > 2)
-	croak("Usage: Cwd::sys_abspath(path, dir = NULL)");
+	Perl_croak_nocontext("Usage: Cwd::sys_abspath(path, dir = NULL)");
     {
 	STRLEN n_a;
 	char *	path = (char *)SvPV(ST(0),n_a);
@@ -1987,7 +1979,7 @@ XS(XS_Cwd_extLibpath)
 {
     dXSARGS;
     if (items < 0 || items > 1)
-	croak("Usage: Cwd::extLibpath(type = 0)");
+	Perl_croak_nocontext("Usage: Cwd::extLibpath(type = 0)");
     {
 	bool	type;
 	char	to[1024];
@@ -2011,7 +2003,7 @@ XS(XS_Cwd_extLibpath_set)
 {
     dXSARGS;
     if (items < 1 || items > 2)
-	croak("Usage: Cwd::extLibpath_set(s, type = 0)");
+	Perl_croak_nocontext("Usage: Cwd::extLibpath_set(s, type = 0)");
     {
 	STRLEN n_a;
 	char *	s = (char *)SvPV(ST(0),n_a);
@@ -2033,7 +2025,7 @@ XS(XS_Cwd_extLibpath_set)
 }
 
 int
-Xs_OS2_init()
+Xs_OS2_init(pTHX)
 {
     char *file = __FILE__;
     {
diff --git a/os2/os2ish.h b/os2/os2ish.h
index 76d1b8c4f3..23857ac532 100644
--- a/os2/os2ish.h
+++ b/os2/os2ish.h
@@ -82,6 +82,9 @@
 
 #ifdef USE_THREADS
 
+#define do_spawn(a)      os2_do_spawn(aTHX_ (a))
+#define do_aspawn(a,b,c) os2_do_aspawn(aTHX_ (a),(b),(c))
+
 #define OS2_ERROR_ALREADY_POSTED 299	/* Avoid os2.h */
 
 extern int rc;
@@ -90,49 +93,49 @@ extern int rc;
     STMT_START {						\
 	int rc;							\
 	if ((rc = _rmutex_create(m,0)))				\
-	    croak("panic: MUTEX_INIT: rc=%i", rc);		\
+	    Perl_croak_nocontext("panic: MUTEX_INIT: rc=%i", rc);	\
     } STMT_END
 #define MUTEX_LOCK(m) \
     STMT_START {						\
 	int rc;							\
 	if ((rc = _rmutex_request(m,_FMR_IGNINT)))		\
-	    croak("panic: MUTEX_LOCK: rc=%i", rc);		\
+	    Perl_croak_nocontext("panic: MUTEX_LOCK: rc=%i", rc);	\
     } STMT_END
 #define MUTEX_UNLOCK(m) \
     STMT_START {						\
 	int rc;							\
 	if ((rc = _rmutex_release(m)))				\
-	    croak("panic: MUTEX_UNLOCK: rc=%i", rc);		\
+	    Perl_croak_nocontext("panic: MUTEX_UNLOCK: rc=%i", rc);	\
     } STMT_END
 #define MUTEX_DESTROY(m) \
     STMT_START {						\
 	int rc;							\
 	if ((rc = _rmutex_close(m)))				\
-	    croak("panic: MUTEX_DESTROY: rc=%i", rc);		\
+	    Perl_croak_nocontext("panic: MUTEX_DESTROY: rc=%i", rc);	\
     } STMT_END
 
 #define COND_INIT(c) \
     STMT_START {						\
 	int rc;							\
 	if ((rc = DosCreateEventSem(NULL,c,0,0)))		\
-	    croak("panic: COND_INIT: rc=%i", rc);		\
+	    Perl_croak_nocontext("panic: COND_INIT: rc=%i", rc);	\
     } STMT_END
 #define COND_SIGNAL(c) \
     STMT_START {						\
 	int rc;							\
-	if ((rc = DosPostEventSem(*(c))) && rc != OS2_ERROR_ALREADY_POSTED)		\
-	    croak("panic: COND_SIGNAL, rc=%ld", rc);		\
+	if ((rc = DosPostEventSem(*(c))) && rc != OS2_ERROR_ALREADY_POSTED)\
+	    Perl_croak_nocontext("panic: COND_SIGNAL, rc=%ld", rc);	\
     } STMT_END
 #define COND_BROADCAST(c) \
     STMT_START {						\
 	int rc;							\
 	if ((rc = DosPostEventSem(*(c))) && rc != OS2_ERROR_ALREADY_POSTED)\
-	    croak("panic: COND_BROADCAST, rc=%i", rc);		\
+	    Perl_croak_nocontext("panic: COND_BROADCAST, rc=%i", rc);	\
     } STMT_END
 /* #define COND_WAIT(c, m) \
     STMT_START {						\
 	if (WaitForSingleObject(*(c),INFINITE) == WAIT_FAILED)	\
-	    croak("panic: COND_WAIT");				\
+	    Perl_croak_nocontext("panic: COND_WAIT");		\
     } STMT_END
 */
 #define COND_WAIT(c, m) os2_cond_wait(c,m)
@@ -140,8 +143,8 @@ extern int rc;
 #define COND_WAIT_win32(c, m) \
     STMT_START {						\
 	int rc;							\
-	if ((rc = SignalObjectAndWait(*(m),*(c),INFINITE,FALSE)))\
-	    croak("panic: COND_WAIT");				\
+	if ((rc = SignalObjectAndWait(*(m),*(c),INFINITE,FALSE)))	\
+	    Perl_croak_nocontext("panic: COND_WAIT");			\
 	else							\
 	    MUTEX_LOCK(m);					\
     } STMT_END
@@ -149,7 +152,7 @@ extern int rc;
     STMT_START {						\
 	int rc;							\
 	if ((rc = DosCloseEventSem(*(c))))			\
-	    croak("panic: COND_DESTROY, rc=%i", rc);		\
+	    Perl_croak_nocontext("panic: COND_DESTROY, rc=%i", rc);	\
     } STMT_END
 /*#define THR ((struct thread *) TlsGetValue(PL_thr_key))
 #define dTHR struct thread *thr = THR
@@ -159,11 +162,15 @@ extern int rc;
 #  define pthread_getspecific(k)	(*_threadstore())
 #  define pthread_setspecific(k,v)	(*_threadstore()=v,0)
 #  define pthread_key_create(keyp,flag)	(*keyp=_gettid(),0)
-#else
+#else /* USE_SLOW_THREAD_SPECIFIC */
 #  define pthread_getspecific(k)	(*(k))
 #  define pthread_setspecific(k,v)	(*(k)=(v),0)
-#  define pthread_key_create(keyp,flag)	(DosAllocThreadLocalMemory(1,(U32*)keyp) ? croak("LocalMemory"),1 : 0)
-#endif
+#  define pthread_key_create(keyp,flag)			\
+	( DosAllocThreadLocalMemory(1,(U32*)keyp)	\
+	  ? Perl_croak_nocontext("LocalMemory"),1	\
+	  : 0						\
+	)
+#endif /* USE_SLOW_THREAD_SPECIFIC */
 #define pthread_key_delete(keyp)
 #define pthread_self()			_gettid()
 #define YIELD				DosSleep(0)
@@ -173,11 +180,16 @@ int pthread_join(pthread_t tid, void **status);
 int pthread_detach(pthread_t tid);
 int pthread_create(pthread_t *tid, const pthread_attr_t *attr,
 		   void *(*start_routine)(void*), void *arg);
-#endif 
+#endif /* PTHREAD_INCLUDED */
 
 #define THREADS_ELSEWHERE
 
-#endif 
+#else /* USE_THREADS */
+
+#define do_spawn(a)      os2_do_spawn(a)
+#define do_aspawn(a,b,c) os2_do_aspawn((a),(b),(c))
+
+#endif /* USE_THREADS */
  
 void Perl_OS2_init(char **);
 
@@ -231,9 +243,21 @@ void *sys_alloc(int size);
 #  define PerlIO FILE
 #endif 
 
+/* os2ish is used from a2p/a2p.h without pTHX/pTHX_ first being
+ * defined.  Hack around this to get us to compile.
+*/
+#ifdef PTHX_UNUSED
+# ifndef pTHX
+#  define pTHX
+# endif
+# ifndef pTHX_
+#  define pTHX_
+# endif
+#endif
+
 #define TMPPATH1 "plXXXXXX"
 extern char *tmppath;
-PerlIO *my_syspopen(char *cmd, char *mode);
+PerlIO *my_syspopen(pTHX_ char *cmd, char *mode);
 /* Cannot prototype with I32 at this point. */
 int my_syspclose(PerlIO *f);
 FILE *my_tmpfile (void);
@@ -352,7 +376,7 @@ void	Perl_Deregister_MQ(int serve);
 int	Perl_Serve_Messages(int force);
 /* Cannot prototype with I32 at this point. */
 int	Perl_Process_Messages(int force, long *cntp);
-char	*os2_execname(void);
+char	*os2_execname(pTHX);
 
 struct _QMSG;
 struct PMWIN_entries_t {
@@ -373,7 +397,7 @@ void init_PMWIN_entries(void);
 #define perl_hmq_GET(serve)	Perl_Register_MQ(serve)
 #define perl_hmq_UNSET(serve)	Perl_Deregister_MQ(serve)
 
-#define OS2_XS_init() (*OS2_Perl_data.xs_init)()
+#define OS2_XS_init() (*OS2_Perl_data.xs_init)(aTHX)
 
 #if _EMX_CRT_REV_ >= 60
 # define os2_setsyserrno(rc)	(Perl_rc = rc, errno = errno_isOS2_set, \
diff --git a/perl.c b/perl.c
index 81287331c0..ff730d7733 100644
--- a/perl.c
+++ b/perl.c
@@ -3264,7 +3264,7 @@ S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register
     }
     if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)))
 #ifdef OS2
-	sv_setpv(GvSV(tmpgv), os2_execname());
+	sv_setpv(GvSV(tmpgv), os2_execname(aTHX));
 #else
 	sv_setpv(GvSV(tmpgv),PL_origargv[0]);
 #endif
diff --git a/util.c b/util.c
index ef9387d5fb..a5cd95419d 100644
--- a/util.c
+++ b/util.c
@@ -2319,7 +2319,7 @@ Perl_my_popen(pTHX_ char *cmd, char *mode)
     PERL_FLUSHALL_FOR_CHILD;
 #ifdef OS2
     if (doexec) {
-	return my_syspopen(cmd,mode);
+	return my_syspopen(aTHX_ cmd,mode);
     }
 #endif 
     This = (*mode == 'w');
diff --git a/x2p/a2p.h b/x2p/a2p.h
index 3b0338ca02..51a69dd11d 100644
--- a/x2p/a2p.h
+++ b/x2p/a2p.h
@@ -121,6 +121,7 @@
 
 #ifdef DOSISH
 # if defined(OS2)
+#   define PTHX_UNUSED
 #   include "../os2ish.h"
 # else
 #   include "../dosish.h"