diff --git a/tools/flang1/flang1exe/ccffinfo.c b/tools/flang1/flang1exe/ccffinfo.c
index 8dc157e584a5..e12760a25cbb 100644
--- a/tools/flang1/flang1exe/ccffinfo.c
+++ b/tools/flang1/flang1exe/ccffinfo.c
@@ -40,7 +40,11 @@ int bu_auto_inline(void);
 
 static int anyunits = 0;
 
+#ifdef FLANG_VENDOR
+#define BUILD_VENDOR FLANG_VENDOR
+#else
 #define BUILD_VENDOR "flang-compiler"
+#endif
 
 FIHB fihb = {(FIH *)0, 0, 0, 0, 0, 0, 0};
 FIHB ifihb = {(FIH *)0, 0, 0, 0, 0, 0, 0}; /* bottom-up auto-inliner */
diff --git a/tools/flang1/flang1exe/listing.c b/tools/flang1/flang1exe/listing.c
index c990f3e84f6c..c14f666c382a 100644
--- a/tools/flang1/flang1exe/listing.c
+++ b/tools/flang1/flang1exe/listing.c
@@ -116,8 +116,13 @@ list_ln(char *beg, char *txt)
     if (!lf)
       return; /* in case error msg written before file
                * opened */
+#ifdef FLANG_VENDOR
+    fprintf(lf, "\n\n\n%s%s (Version %8s)          %s      page %d\n\n",
+            FLANG_VENDOR, version.lang, version.vsn, gbl.datetime, pgno);
+#else
     fprintf(lf, "\n\n\n%s (Version %8s)          %s      page %d\n\n",
             version.lang, version.vsn, gbl.datetime, pgno);
+#endif
     pgno++;
     pgpos = 6;
   }
diff --git a/tools/flang1/flang1exe/main.c b/tools/flang1/flang1exe/main.c
index 7c2272d45edd..28a780064e9f 100644
--- a/tools/flang1/flang1exe/main.c
+++ b/tools/flang1/flang1exe/main.c
@@ -127,7 +127,11 @@ static char *accel = NULL;
 
 /** Product name in debug output
  */
+#ifdef FLANG_VENDOR
+#define DNAME FLANG_VENDOR "F90"
+#else
 #define DNAME "F90"
+#endif
 
 #if DEBUG
 static int dodebug = 0;
@@ -1185,7 +1189,11 @@ do_debug(char *phase)
     return;
   }
   if (dodebug)
+#ifdef FLANG_VENDOR
+    fprintf(gbl.dbgfil, "{%sF90 after %s\n", FLANG_VENDOR, phase);
+#else
     fprintf(gbl.dbgfil, "{%s after %s\n", feature, phase);
+#endif
 
   current_phase = phase;
   execute_actions_for_keyword(phase_dump_map, phase);
diff --git a/tools/flang1/flang1exe/semfunc.c b/tools/flang1/flang1exe/semfunc.c
index 62a754932bb5..d3964bac8864 100644
--- a/tools/flang1/flang1exe/semfunc.c
+++ b/tools/flang1/flang1exe/semfunc.c
@@ -5458,7 +5458,7 @@ ref_pd(SST *stktop, ITEM *list)
   int pvar;
   int nelems, eltype;
   char *sname = NULL;
-  char verstr[140]; /*140, get_version_str returns max 128 char + pf90 prefix */
+  char verstr[256]; /* get_version_str returns max 128 chars + vendor prefix */
   FtnRtlEnum rtlRtn;
 
 /* any integer type, or hollerith, or, if -x 51 0x20 not set, real/double */
@@ -10660,7 +10660,13 @@ ref_pd(SST *stktop, ITEM *list)
       goto call_e74_cnt;
     }
 
+#ifdef FLANG_VENDOR
+    assert(strlen(FLANG_VENDOR) < 116, "FLANG_VENDOR string too long",
+            strlen(FLANG_VENDOR), 4);
+    sprintf(verstr, FLANG_VENDOR "F90 %s", get_version_string());
+#else
     sprintf(verstr, "flang %s", get_version_string());
+#endif
     sptr = getstring(verstr, strlen(verstr));
 
     goto const_str_val;
diff --git a/tools/flang1/flang1exe/version.c b/tools/flang1/flang1exe/version.c
index 9e16acfeaf81..7e097ef6086a 100644
--- a/tools/flang1/flang1exe/version.c
+++ b/tools/flang1/flang1exe/version.c
@@ -20,7 +20,11 @@
 
 #define LANGUAGE "F90"
 
+#ifdef FLANG_VENDOR
+#define PRODUCT FLANG_VENDOR LANGUAGE " "
+#else
 #define PRODUCT ""
+#endif
 
 /* COPYRIGHT is extern to make it easy to find in symbol table */
 /* it also has extra space to patch in interesting stuff */
diff --git a/tools/flang2/flang2exe/ccffinfo.c b/tools/flang2/flang2exe/ccffinfo.c
index bb62b1937a1f..00b9eeff67d4 100644
--- a/tools/flang2/flang2exe/ccffinfo.c
+++ b/tools/flang2/flang2exe/ccffinfo.c
@@ -46,7 +46,11 @@ int bu_auto_inline(void);
 
 static int anyunits = 0;
 
+#ifdef FLANG_VENDOR
+#define BUILD_VENDOR FLANG_VENDOR
+#else
 #define BUILD_VENDOR "flang-compiler"
+#endif
 
 FIHB fihb = {(FIH *)0, 0, 0, 0, 0, 0, 0};
 FIHB ifihb = {(FIH *)0, 0, 0, 0, 0, 0, 0}; /* bottom-up auto-inliner */
diff --git a/tools/flang2/flang2exe/main.c b/tools/flang2/flang2exe/main.c
index a4f581d1ac61..7ee0fa8d11a5 100644
--- a/tools/flang2/flang2exe/main.c
+++ b/tools/flang2/flang2exe/main.c
@@ -62,6 +62,14 @@ void acc_add_global(void); /* FIXME - does not belong here */
 
 static LOGICAL process_input(char *argv0, LOGICAL *need_cuda_constructor);
 
+/** Product name in debug output
+ */
+#ifdef FLANG_VENDOR
+#define DNAME FLANG_VENDOR "F90"
+#else
+#define DNAME "F90"
+#endif
+
 #if DEBUG & sun
 #ifndef _ERRNO_H
 extern int errno;
@@ -120,7 +128,11 @@ static int dodebug = 0;
 #define DEBUGQQ 0
 #endif
 
+#if defined(FLANG_VENDOR) && defined(DNAME)
+static char *dbg_feature = DNAME;
+#else
 static char *dbg_feature = "flang";
+#endif
 
 static int ipa_import_mode = 0;
 
@@ -208,7 +220,7 @@ process_input(char *argv0, LOGICAL *need_cuda_constructor)
   gbl.func_count++;
 
   if (gbl.multiversion <= 1) {
-    TR("F90 ILM INPUT begins\n")
+    TR(DNAME " ILM INPUT begins\n")
     if (!IS_PARFILE)
     {
       upper(0);
@@ -273,7 +285,7 @@ process_input(char *argv0, LOGICAL *need_cuda_constructor)
             AssignAddresses(); /* exp_rte.c */
           }
         }
-        TR("F90 EXPANDER begins\n");
+        TR(DNAME " EXPANDER begins\n");
 
         expand(); /* expand ILM's into ILI  */
         DUMP("expand");
@@ -301,14 +313,14 @@ process_input(char *argv0, LOGICAL *need_cuda_constructor)
         rm_smove();
         DUMP("rmsmove");
 
-        TR("F90 SCHEDULER begins\n");
+        TR(DNAME " SCHEDULER begins\n");
         DUMP("before-schedule");
         schedule();
         xtimes[5] += getcpu();
         DUMP("schedule");
       } /* CUDAG(GBL_CURRFUNC) & CUDA_HOST */
     }
-    TR("F90 ASSEMBLER begins\n");
+    TR(DNAME " ASSEMBLER begins\n");
     assemble();
     xtimes[6] += getcpu();
     upper_save_syminfo();
@@ -929,7 +941,7 @@ process_stb_file()
 
     gbl.func_count++;
 
-    TR("F90 STBFILE INPUT begins\n")
+    TR(DNAME " STBFILE INPUT begins\n")
     upper(1); /* should we generate upper_stbfil()? */
 
     if (gbl.eof_flag)
diff --git a/tools/flang2/flang2exe/version.c b/tools/flang2/flang2exe/version.c
index 59b2c4f8bd7d..56c53e3169c9 100644
--- a/tools/flang2/flang2exe/version.c
+++ b/tools/flang2/flang2exe/version.c
@@ -22,7 +22,11 @@
 #define LANGUAGE "F90"
 #endif
 
+#ifdef FLANG_VENDOR
+#define PRODUCT FLANG_VENDOR LANGUAGE " "
+#else
 #define PRODUCT ""
+#endif
 
 /* COPYRIGHT is extern to make it easy to find in symbol table */
 /* it also has extra space to patch in interesting stuff */