diff --git a/VAX/vax_mmu.c b/VAX/vax_mmu.c
index f66b1c57..c3ffcd8e 100644
--- a/VAX/vax_mmu.c
+++ b/VAX/vax_mmu.c
@@ -632,4 +632,4 @@ return SCPE_OK;
 char *tlb_description (DEVICE *dptr)
     {
     return "translation buffer";
-    }
\ No newline at end of file
+    }
diff --git a/makefile b/makefile
index 0f0fa2d1..5f6eb835 100644
--- a/makefile
+++ b/makefile
@@ -134,6 +134,7 @@ ifeq ($(WIN32),)  #*nix Environments (&& cygwin)
             LIBPATH += /opt/sfw/lib
             OS_LDFLAGS += -L/opt/sfw/lib -R/opt/sfw/lib
           endif
+          OS_CCDEFS += -D_LARGEFILE_SOURCE
         else
           ifeq (cygwin,$(OSTYPE))
             # use 0readme_ethernet.txt documented Windows pcap build components
diff --git a/sim_fio.c b/sim_fio.c
index 807100d6..07123762 100644
--- a/sim_fio.c
+++ b/sim_fio.c
@@ -232,7 +232,7 @@ return fopen (file, mode);
 
 /* 64b VMS */
 
-#if (defined (__ALPHA) || defined (__ia64)) && defined (VMS) && (__DECC_VER >= 60590001)
+#if ((defined (__ALPHA) || defined (__ia64)) && defined (VMS) && (__DECC_VER >= 60590001)) || (defined(__sun__) && defined(_LARGEFILE_SOURCE))
 #define S_SIM_IO_FSEEK_EXT_      1
 
 int sim_fseek (FILE *st, t_addr offset, int whence)
diff --git a/sim_timer.c b/sim_timer.c
index d813c615..c2429225 100644
--- a/sim_timer.c
+++ b/sim_timer.c
@@ -625,7 +625,7 @@ if (delta_rtime > 30000) {                              /* gap too big? */
     return rtc_initd[tmr];                              /* can't calibr */
     }
 new_gtime = sim_gtime();
-if (sim_asynch_enabled && sim_asynch_timer)
+if (sim_asynch_enabled && sim_asynch_timer) {
     if (rtc_elapsed[tmr] > sim_idle_stable) {
         /* An asynchronous clock, merely needs to divide the number of */
         /* instructions actually executed by the clock rate. */
@@ -650,6 +650,7 @@ if (sim_asynch_enabled && sim_asynch_timer)
         sim_debug (DBG_CAL, &sim_timer_dev, "asynch not stable calibration result: %d\n", rtc_initd[tmr]);
         return rtc_initd[tmr];                          /* initial result until stable */
         }
+    }
 rtc_gtime[tmr] = new_gtime;                             /* save instruction time */
 /* This self regulating algorithm depends directly on the assumption */
 /* that this routine is called back after processing the number of */
diff --git a/swtp6800/common/mp-s.c b/swtp6800/common/mp-s.c
index 47394233..1100e35c 100644
--- a/swtp6800/common/mp-s.c
+++ b/swtp6800/common/mp-s.c
@@ -328,4 +328,4 @@ int32 sio1d(int32 io, int32 data)
     return odata;
 }
 
-/* end of mp-s.c */
\ No newline at end of file
+/* end of mp-s.c */