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-rw-r--r--gcc/fortran/ChangeLog10
-rw-r--r--gcc/fortran/match.c7
-rw-r--r--gcc/fortran/trans-common.c11
3 files changed, 23 insertions, 5 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 84804f9..e9ba75f 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,13 @@
+2006-11-01 Bernhard Fischer <aldot@gcc.gnu.org>
+
+ PR fortran/29537
+ * trans-common.c (gfc_trans_common): If the blank common is
+ in a procedure or program without a name then proc_name is null, so
+ use the locus of the common.
+ (gfc_sym_mangled_common_id): Fix whitespace.
+ * match.c (gfc_match_common): Emit warning about blank common in
+ block data.
+
2006-10-31 Francois-Xavier Coudert <coudert@clipper.ens.fr>
PR fortran/29067
diff --git a/gcc/fortran/match.c b/gcc/fortran/match.c
index 3f393856..5012c35 100644
--- a/gcc/fortran/match.c
+++ b/gcc/fortran/match.c
@@ -2327,16 +2327,19 @@ gfc_match_common (void)
if (name[0] == '\0')
{
+ if (gfc_current_ns->is_block_data)
+ {
+ gfc_warning ("BLOCK DATA unit cannot contain blank COMMON at %C");
+ }
t = &gfc_current_ns->blank_common;
if (t->head == NULL)
t->where = gfc_current_locus;
- head = &t->head;
}
else
{
t = gfc_get_common (name, 0);
- head = &t->head;
}
+ head = &t->head;
if (*head == NULL)
tail = NULL;
diff --git a/gcc/fortran/trans-common.c b/gcc/fortran/trans-common.c
index 5350eac..83da32f 100644
--- a/gcc/fortran/trans-common.c
+++ b/gcc/fortran/trans-common.c
@@ -219,7 +219,7 @@ add_segments (segment_info *list, segment_info *v)
/* Construct mangled common block name from symbol name. */
static tree
-gfc_sym_mangled_common_id (const char *name)
+gfc_sym_mangled_common_id (const char *name)
{
int has_underscore;
char mangled_name[GFC_MAX_MANGLED_SYMBOL_LEN + 1];
@@ -1054,13 +1054,18 @@ gfc_trans_common (gfc_namespace *ns)
if (ns->blank_common.head != NULL)
{
c = gfc_get_common_head ();
+
/* We've lost the real location, so use the location of the
enclosing procedure. */
- c->where = ns->proc_name->declared_at;
+ if (ns->proc_name != NULL)
+ c->where = ns->proc_name->declared_at;
+ else
+ c->where = ns->blank_common.head->common_head->where;
+
strcpy (c->name, BLANK_COMMON_NAME);
translate_common (c, ns->blank_common.head);
}
-
+
/* Translate all named common blocks. */
gfc_traverse_symtree (ns->common_root, named_common);