During compilation of a Fortran program f2c/f77 will spew the

name of entry points, functions, subroutines, and program to
stderr error.  The enclosed patches do 3 things:

     (1) Silenced the output to stderr.
     (2) Added a -v option to f2c and f77.  This will turn on a verbose
         mode, and dumps quite a bit of stuff to stderr.
     (3) Updated the f2c man page.

PR:		7369
Submitted by:	Steven G. Kargl <kargl@troutmask.apl.washington.edu>

4 files changed, 24 insertions, 12 deletions

diff --git a/gnu/usr.bin/cc/cc/f2c-specs.h b/gnu/usr.bin/cc/cc/f2c-specs.h
index 0874d54..aafab0e 100644
--- a/gnu/usr.bin/cc/cc/f2c-specs.h
+++ b/gnu/usr.bin/cc/cc/f2c-specs.h
@@ -4,7 +4,7 @@
    "f2c %{checksubscripts:-C} %{I2} %{onetrip} %{honorcase:-U} %{u} %{w}\
         %{ANSIC:-A} %{a} %{C++}\
         %{c} %{E} %{ec} %{ext} %{f} %{72} %{g} %{h} %{i2} %{kr} %{krd}\
-        %{P} %{p} %{r} %{r8} %{s} %{w8} %{z} %{N*}\
+        %{P} %{p} %{v} %{r} %{r8} %{s} %{w8} %{z} %{N*}\
         %i %{!pipe: -o %g.c} %{pipe:-o -}|\n",
    "cpp -lang-c %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
 	%{C:%{!E:%eGNU C does not support -C without using -E}}\
diff --git a/usr.bin/f2c/f2c.1 b/usr.bin/f2c/f2c.1
index 4011fcb..08e99ed 100644
--- a/usr.bin/f2c/f2c.1
+++ b/usr.bin/f2c/f2c.1
@@ -33,7 +33,7 @@
 .Nd Convert Fortran 77 to C or C++
 .Sh SYNOPSIS
 .Nm f2c
-.Op Fl AaCcEfgpRrsUuw
+.Op Fl AaCcEfgpRrsUuvw
 .Op Fl C++
 .Op Fl cd
 .Op Fl d Ar dir
@@ -195,6 +195,8 @@ may change prototypes or declarations.
 .It Fl p
 Supply preprocessor definitions to make common-block members look like local
 variables.
+.It Fl v
+Echo the file name, program name, and procedure name(s) during compilation.
 .It Fl R
 Do not promote REAL functions and operations to DOUBLE PRECISION.  Option
 .Fl !R
diff --git a/usr.bin/f2c/main.c b/usr.bin/f2c/main.c
index 4183855..7237905 100644
--- a/usr.bin/f2c/main.c
+++ b/usr.bin/f2c/main.c
@@ -49,6 +49,7 @@ flag r8flag = NO;
 flag use_bs = YES;
 flag keepsubs = NO;
 flag byterev = NO;
+flag echo = NO;
 int intr_omit;
 static int no_cd, no_i90;
 #ifdef TYQUAD
@@ -128,6 +129,7 @@ static arg_info table[] = {
     f2c_entry ("Nl", P_ONE_ARG, P_INT, &maxlablist, 0),
     f2c_entry ("c", P_NO_ARGS, P_INT, &addftnsrc, YES),
     f2c_entry ("p", P_NO_ARGS, P_INT, &usedefsforcommon, YES),
+    f2c_entry ("v", P_NO_ARGS, P_INT, &echo, YES),
     f2c_entry ("R", P_NO_ARGS, P_INT, &forcedouble, NO),
     f2c_entry ("!R", P_NO_ARGS, P_INT, &forcedouble, YES),
     f2c_entry ("A", P_NO_ARGS, P_INT, &Ansi, YES),
@@ -563,7 +565,7 @@ main(int argc, char **argv)
 
 	if(inilex( copys(file_name) ))
 		done(1);
-	if (filename0) {
+	if (filename0 && echo) {
 		fprintf(diagfile, "%s:\n", file_name);
 		fflush(diagfile);
 		}
diff --git a/usr.bin/f2c/proc.c b/usr.bin/f2c/proc.c
index 6796d52..2273e24 100644
--- a/usr.bin/f2c/proc.c
+++ b/usr.bin/f2c/proc.c
@@ -433,6 +433,8 @@ startproc(progname, class)
 startproc(Extsym *progname, int class)
 #endif
 {
+	extern flag echo;
+
 	register struct Entrypoint *p;
 
 	p = ALLOC(Entrypoint);
@@ -458,13 +460,15 @@ startproc(Extsym *progname, int class)
 	entries = p;
 
 	procclass = class;
-	fprintf(diagfile, "   %s", (class==CLMAIN ? "MAIN" : "BLOCK DATA") );
-	if(progname) {
-		fprintf(diagfile, " %s", progname->fextname);
-		procname = progname->cextname;
+	if (echo) {
+		fprintf(diagfile, "   %s", (class==CLMAIN ? "MAIN" : "BLOCK DATA") );
+		if(progname) {
+			fprintf(diagfile, " %s", progname->fextname);
+			procname = progname->cextname;
+			}
+		fprintf(diagfile, ":\n");
+		fflush(diagfile);
 		}
-	fprintf(diagfile, ":\n");
-	fflush(diagfile);
 }
 
 /* subroutine or function statement */
@@ -521,15 +525,19 @@ entrypt(class, type, length, entry, args)
 entrypt(int class, int type, ftnint length, Extsym *entry, chainp args)
 #endif
 {
+	extern flag echo;
+
 	register Namep q;
 	register struct Entrypoint *p;
 
 	if(class != CLENTRY)
 		puthead( procname = entry->cextname, class);
-	else
+	else if (echo)
 		fprintf(diagfile, "       entry ");
-	fprintf(diagfile, "   %s:\n", entry->fextname);
-	fflush(diagfile);
+	if (echo){
+		fprintf(diagfile, "   %s:\n", entry->fextname);
+		fflush(diagfile);
+		}
 	q = mkname(entry->fextname);
 	if (type == TYSUBR)
 		q->vstg = STGEXT;