From bcdabeb9fe746ed36981a573b4aa9b8d3bf29dd0 Mon Sep 17 00:00:00 2001
From: Mark Pizzolato <mark@infocomm.com>
Date: Sat, 4 Jan 2020 08:42:15 -0800
Subject: [PATCH] SAGE, PDQ-3: Silence GCC optimizer warnings about unused
 function results

---
 PDQ-3/pdq3_debug.c | 2 +-
 PDQ-3/pdq3_fdc.c   | 4 ++--
 SAGE/i8272.c       | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/PDQ-3/pdq3_debug.c b/PDQ-3/pdq3_debug.c
index afe1a63a..df8121e2 100644
--- a/PDQ-3/pdq3_debug.c
+++ b/PDQ-3/pdq3_debug.c
@@ -67,7 +67,7 @@ static void dbg_opdbginit() {
   for (i=DEBUG_MINOPCODE; i<DEBUG_MAXOPCODE; i++)
       opdebug[i-DEBUG_MINOPCODE] = DEBUG_PRE|DEBUG_POST;
   while (!feof(fd)) {
-    fgets(line,100,fd);
+    if (fgets(line,100,fd)) {};
     sscanf(line,"%x %d", &i, &f);
     ASSURE(i >= DEBUG_MINOPCODE && i < DEBUG_MAXOPCODE);
     opdebug[i-DEBUG_MINOPCODE] = f;
diff --git a/PDQ-3/pdq3_fdc.c b/PDQ-3/pdq3_fdc.c
index 4c73f708..26a024fb 100644
--- a/PDQ-3/pdq3_fdc.c
+++ b/PDQ-3/pdq3_fdc.c
@@ -286,7 +286,7 @@ t_stat fdc_attach(UNIT *uptr, CONST char *cptr) {
   fdc_drv[i].dr_ready = 0;
   
   if (uptr->capac > 0) {
-    fgets(header, 4, uptr->fileref);
+    if (fgets(header, 4, uptr->fileref)) {};
     if (strncmp(header, "IMD", 3) != 0) {
       sim_printf("FDC: Only IMD disk images are supported\n");
       fdc_drv[i].dr_unit = NULL;
@@ -1116,7 +1116,7 @@ t_stat pdq3_diskCreate(FILE *fileref, const char *ctlr_comment) {
     remaining = MAX_COMMENT_LEN;
     do {
         sim_printf("IMD> ");
-        fgets(curptr, remaining - 3, stdin);
+        if (fgets(curptr, remaining - 3, stdin)) {};
         if (strcmp(curptr, ".\n") == 0) {
             remaining = 0;
         } else {
diff --git a/SAGE/i8272.c b/SAGE/i8272.c
index cc6b5441..f4dd89ed 100644
--- a/SAGE/i8272.c
+++ b/SAGE/i8272.c
@@ -228,7 +228,7 @@ t_stat i8272_attach(UNIT *uptr, CONST char *cptr)
     chip->drive[i].ready = 0;
 
     if(uptr->capac > 0) {
-        fgets(header, 4, uptr->fileref);
+        if (fgets(header, 4, uptr->fileref)) {};
         if(strncmp(header, "IMD", 3)) {
             sim_printf("I8272: Only IMD disk images are supported\n");
             chip->drive[i].uptr = NULL;