diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 0c8e74f3a061df4b55e95e72b6446d6d3b7d93bf..0f557c77e61f9e182b390efadc732152f695816e 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,9 @@
+2014-12-12  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/68815
+	* c-format.c (gcc_gfc_char_table): Add 'q' flag to remaining
+	specifiers (%d, %i,%u and %c).
+
 2015-12-10  David Malcolm  <dmalcolm@redhat.com>
 
 	* c.opt (Wmisleading-indentation): Add to -Wall for C and C++.
diff --git a/gcc/c-family/c-format.c b/gcc/c-family/c-format.c
index 6e372655cd8d6755610e28e8d863edf7d1d9501d..de07b6cced56fb3cf9252fd758589ac6a4fdb2b8 100644
--- a/gcc/c-family/c-format.c
+++ b/gcc/c-family/c-format.c
@@ -809,9 +809,9 @@ static const format_char_info gcc_cxxdiag_char_table[] =
 static const format_char_info gcc_gfc_char_table[] =
 {
   /* C89 conversion specifiers.  */
-  { "di",  0, STD_C89, { T89_I,   BADLEN,  BADLEN,  T89_L,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "", "", NULL },
-  { "u",   0, STD_C89, { T89_UI,  BADLEN,  BADLEN,  T89_UL,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "", "", NULL },
-  { "c",   0, STD_C89, { T89_I,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "", "", NULL },
+  { "di",  0, STD_C89, { T89_I,   BADLEN,  BADLEN,  T89_L,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "q", "", NULL },
+  { "u",   0, STD_C89, { T89_UI,  BADLEN,  BADLEN,  T89_UL,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "q", "", NULL },
+  { "c",   0, STD_C89, { T89_I,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "q", "", NULL },
   { "s",   1, STD_C89, { T89_C,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "q", "cR", NULL },
 
   /* gfc conversion specifiers.  */
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 413318de8318c39cf18e02113b3f93be1dde1b09..749d5223d03de007913473697628555d266edc60 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,11 @@
+2014-12-12  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/68815
+	* check.c (gfc_check_reshape): Replace %<%d%> by %qd.
+	* matchexp.c (gfc_match_defined_op_name): Use %qc.
+	* symbol.c (gfc_add_new_implicit_range,
+	gfc_merge_new_implicit): Ditto.
+
 2015-12-10  David Malcolm  <dmalcolm@redhat.com>
 
 	* io.c (gfc_match_open): Fix indentation.
diff --git a/gcc/fortran/check.c b/gcc/fortran/check.c
index 6dc7f3e264b86bb1eeebea25332e6b38b5916c42..3f1bdd315aee89ce880d7e3831b1168efd497d3a 100644
--- a/gcc/fortran/check.c
+++ b/gcc/fortran/check.c
@@ -3863,7 +3863,7 @@ gfc_check_reshape (gfc_expr *source, gfc_expr *shape,
 		{
 		  gfc_error ("%qs argument of %qs intrinsic at %L has "
 			     "invalid permutation of dimensions (dimension "
-			     "%<%d%> duplicated)",
+			     "%qd duplicated)",
 			     gfc_current_intrinsic_arg[3]->name,
 			     gfc_current_intrinsic, &e->where, dim);
 		  return false;
diff --git a/gcc/fortran/matchexp.c b/gcc/fortran/matchexp.c
index 02f43a04db19ac08b7e8305a5982777a08efd656..c14ef59846736fbfe97cb1de99bc0539fb0a6363 100644
--- a/gcc/fortran/matchexp.c
+++ b/gcc/fortran/matchexp.c
@@ -69,7 +69,7 @@ gfc_match_defined_op_name (char *result, int error_flag)
   for (i = 0; name[i]; i++)
     if (!ISALPHA (name[i]))
       {
-	gfc_error ("Bad character %<%c%> in OPERATOR name at %C", name[i]);
+	gfc_error ("Bad character %qc in OPERATOR name at %C", name[i]);
 	return MATCH_ERROR;
       }
 
diff --git a/gcc/fortran/symbol.c b/gcc/fortran/symbol.c
index 311f743f8ff1f6ff1f8d35d49a31b107c7fa243c..678a2318c9af656c18b9f66eef885264b649fff6 100644
--- a/gcc/fortran/symbol.c
+++ b/gcc/fortran/symbol.c
@@ -165,7 +165,7 @@ gfc_add_new_implicit_range (int c1, int c2)
     {
       if (new_flag[i])
 	{
-	  gfc_error ("Letter %<%c%> already set in IMPLICIT statement at %C",
+	  gfc_error ("Letter %qc already set in IMPLICIT statement at %C",
 		     i + 'A');
 	  return false;
 	}
@@ -197,7 +197,7 @@ gfc_merge_new_implicit (gfc_typespec *ts)
 	{
 	  if (gfc_current_ns->set_flag[i])
 	    {
-	      gfc_error ("Letter %c already has an IMPLICIT type at %C",
+	      gfc_error ("Letter %qc already has an IMPLICIT type at %C",
 			 i + 'A');
 	      return false;
 	    }