diff --git a/fast/driver/afcc.1 b/fast/driver/afcc.1
index 9575e5d9c..1826ae06f 100644
--- a/fast/driver/afcc.1
+++ b/fast/driver/afcc.1
@@ -21,6 +21,9 @@ afcc \- fast ACK compatible ANSI C compiler
 .B \-w
 ]
 [
+.B \-g
+]
+[
 .B \-o 
 .I outfile
 ]
@@ -112,6 +115,9 @@ Name the final output file
 .br
 Remove any initial definition of
 .I name.
+.IP \fB\-g\fP
+.br
+Produce symbolic debugging information for grind(1).
 .IP \fB\-v\fP
 .br
 Verbose. Print the commands as they are executed.
@@ -132,5 +138,7 @@ can be freely mixed.
 B.W. Kernighan, D. Ritchie, "\fIThe C programming Language\fP", Prentice-Hall Inc., 1978
 .IP [2]
 ack(1) manual page.
+.IP [3]
+grind(1) manual page.
 .SH DIAGNOSTICS
 Diagnostics are intended to be self-explanatory.
diff --git a/fast/driver/afm2.1 b/fast/driver/afm2.1
index 1574014aa..431f0f07c 100644
--- a/fast/driver/afm2.1
+++ b/fast/driver/afm2.1
@@ -43,6 +43,9 @@ afm2 \- fast ACK compatible Modula-2 compiler
 .B \-_
 ]
 [
+.B \-g
+]
+[
 .BI \-U name
 ]
 [
@@ -162,6 +165,9 @@ Verbose, no execute. Only print the commands, do not execute them.
 .IP \fB\-L\fR
 do not generate code to keep track of
 the current location in the source code.
+.IP \fB\-g\fP
+.br
+Produce symbolic debugging information for grind(1).
 .IP \fB\-w\fR\fIclasses\fR
 suppress warning messages whose class is a member of \fIclasses\fR.
 Currently, there are three classes: \fBO\fR, indicating old-flashioned use,
@@ -197,5 +203,7 @@ N. Wirth, \fIProgramming in Modula-2\fP, 3rd edition, Springer Verlag.
 C.J.H. Jacobs, \fIThe ACK Modula-2 Compiler\fP.
 .IP [3]
 ack(1) unix manual page.
+.IP [4]
+grind(1) unix manual page.
 .SH DIAGNOSTICS
 Diagnostics are intended to be self-explanatory.
diff --git a/fast/driver/afpc.1 b/fast/driver/afpc.1
index 8b8365389..f96d2e3e3 100644
--- a/fast/driver/afpc.1
+++ b/fast/driver/afpc.1
@@ -21,6 +21,9 @@ afpc \- fast ACK compatible Pascal compiler
 .B \-w
 ]
 [
+.B \-g
+]
+[
 .B \-L
 ]
 [
@@ -165,6 +168,9 @@ Verbose, no execute. Only print the commands, do not execute them.
 .br
 do not generate code to keep track of
 the current location in the source code.
+.IP \fB\-g\fP
+.br
+Produce symbolic debugging information for grind(1).
 .IP \fB\-w\fP
 .br
 suppress warning messages.
@@ -215,5 +221,7 @@ use \fIcompiler\fR as Modula-2 compiler instead of the default.
 J.W. Stevenson, H. v. Eck, \fIAmsterdam Compiler Kit-Pascal reference manual\fP.
 .IP [2]
 ack(1) unix manual page.
+.IP [3]
+grind(1) unix manual page.
 .SH DIAGNOSTICS
 Diagnostics are intended to be self-explanatory.
diff --git a/fast/driver/driver.c b/fast/driver/driver.c
index d66bc2a8a..ae649b718 100644
--- a/fast/driver/driver.c
+++ b/fast/driver/driver.c
@@ -49,7 +49,11 @@ int kids =  -1;
 int ecount = 0;
 
 struct arglist CPP_FLAGS = {
+#ifdef FCC
 	7,
+#else
+	13,
+#endif
 	{
 		"-D__unix",
 		"-D_EM_WSIZE=4",
@@ -58,6 +62,14 @@ struct arglist CPP_FLAGS = {
 		"-D_EM_LSIZE=4",
 		"-D_EM_FSIZE=4",
 		"-D_EM_DSIZE=8",
+#ifndef FCC
+		"-DEM_WSIZE=4",
+		"-DEM_PSIZE=4",
+		"-DEM_SSIZE=2",
+		"-DEM_LSIZE=4",
+		"-DEM_FSIZE=4",
+		"-DEM_DSIZE=8",
+#endif
 	}
 };
 
@@ -83,6 +95,7 @@ struct arglist CALL_VEC;
 
 int o_flag = 0;
 int c_flag = 0;
+int g_flag = 0;
 int v_flag = 0;
 int O_flag = 0;
 
@@ -132,6 +145,13 @@ lang_opt(str)
 {
 	switch(str[1]) {
 	case '-':	/* debug options */
+		append(&COMP_FLAGS, str);
+		return 1;
+	case 'a':	/* ignore -ansi flag */
+		if (! strcmp(str, "-ansi")) {
+			return 1;
+		}
+		break;
 	case 'w':	/* disable warnings */
 		if (str[2]) {
 			str[1] = '-';
@@ -235,7 +255,7 @@ main(argc, argv)
 #endif FM2
 #ifdef FCC
 	strcat(INCLUDE, CCINCL);
-	append(&COMPFLAGS, "-L");
+	append(&COMP_FLAGS, "-L");
 #endif FCC
 #ifdef FPC
 	INCLUDE[0] = '\0';
@@ -279,6 +299,10 @@ main(argc, argv)
 		case 'I':	/* include directory */
 			append(&CPP_FLAGS, str);
 			break;
+		case 'g':	/* debugger support */
+			append(&COMP_FLAGS, str);
+			g_flag = 1;
+			break;
 		case 'o':	/* target file */
 			if (argc-- >= 0) {
 				o_flag = 1;
@@ -370,7 +394,7 @@ main(argc, argv)
 			if (o_flag && c_flag) {
 				f = o_FILE;
 			}
-			else	f = mkstr(ldfile, BASE, ".o", (char *)0);
+			else	f = mkstr(ldfile, BASE, ".", "o", (char *)0);
 				append(call, COMP);
 #ifdef FCC
 				concat(call, &CPP_FLAGS);
@@ -421,6 +445,7 @@ main(argc, argv)
 #ifdef FPC
 		append(call, "-.p");
 #endif
+		if (g_flag) append(call, "-g");
 		concat(call, &LD_FLAGS);
 		concat(call, &LDFILES);
 		if (runvec(call, (char *) 0) && GEN_LDFILES.al_argc == 1)
diff --git a/fast/f_c.ansi/Parameters b/fast/f_c.ansi/Parameters
index 95d1632a0..48c2f21d1 100644
--- a/fast/f_c.ansi/Parameters
+++ b/fast/f_c.ansi/Parameters
@@ -137,6 +137,6 @@
 
 
 !File: dbsymtab.h
-#undef DBSYMTAB	1	/* ability to produce symbol table for debugger */
+#define DBSYMTAB	1	/* ability to produce symbol table for debugger */
 
 
diff --git a/fast/f_m2/Parameters b/fast/f_m2/Parameters
index 97c00c678..49891d2be 100644
--- a/fast/f_m2/Parameters
+++ b/fast/f_m2/Parameters
@@ -86,7 +86,7 @@
 
 
 !File: dbsymtab.h
-#undef DBSYMTAB	1	/* ability to produce symbol table for debugger */
+#define DBSYMTAB	1	/* ability to produce symbol table for debugger */
 
 
 !File: use_insert.h
diff --git a/fast/f_pc/Parameters b/fast/f_pc/Parameters
index 91ee802f3..d2545e832 100644
--- a/fast/f_pc/Parameters
+++ b/fast/f_pc/Parameters
@@ -58,4 +58,4 @@
 
 
 !File: dbsymtab.h
-#undef DBSYMTAB	1	/* ability to produce symbol table for debugger */
+#define DBSYMTAB	1	/* ability to produce symbol table for debugger */