static void set_collect_gcc_options PARAMS ((void));
static int do_spec_1 PARAMS ((const char *, int, const char *));
static int do_spec_2 PARAMS ((const char *));
+static void do_option_spec PARAMS ((const char *, const char *));
static void do_self_spec PARAMS ((const char *));
static const char *find_file PARAMS ((const char *));
static int is_directory PARAMS ((const char *, const char *, int));
static const char *const driver_self_specs[] = { DRIVER_SELF_SPECS };
+#ifndef OPTION_DEFAULT_SPECS
+#define OPTION_DEFAULT_SPECS { "", "" }
+#endif
+
+struct default_spec
+{
+ const char *name;
+ const char *spec;
+};
+
+static const struct default_spec
+ option_default_specs[] = { OPTION_DEFAULT_SPECS };
+
struct user_specs
{
struct user_specs *next;
of the switches/n_switches array. */
static void
+do_option_spec (name, spec)
+ const char *name;
+ const char *spec;
+{
+ unsigned int i, value_count, value_len;
+ const char *p, *q, *value;
+ char *tmp_spec, *tmp_spec_p;
+
+ if (configure_default_options[0].name == NULL)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
+ if (strcmp (configure_default_options[i].name, name) == 0)
+ break;
+ if (i == ARRAY_SIZE (configure_default_options))
+ return;
+
+ value = configure_default_options[i].value;
+ value_len = strlen (value);
+
+ /* Compute the size of the final spec. */
+ value_count = 0;
+ p = spec;
+ while ((p = strstr (p, "%(VALUE)")) != NULL)
+ {
+ p ++;
+ value_count ++;
+ }
+
+ /* Replace each %(VALUE) by the specified value. */
+ tmp_spec = alloca (strlen (spec) + 1
+ + value_count * (value_len - strlen ("%(VALUE)")));
+ tmp_spec_p = tmp_spec;
+ q = spec;
+ while ((p = strstr (q, "%(VALUE)")) != NULL)
+ {
+ memcpy (tmp_spec_p, q, p - q);
+ tmp_spec_p = tmp_spec_p + (p - q);
+ memcpy (tmp_spec_p, value, value_len);
+ tmp_spec_p += value_len;
+ q = p + strlen ("%(VALUE)");
+ }
+ strcpy (tmp_spec_p, q);
+
+ do_self_spec (tmp_spec);
+}
+
+/* Process the given spec string and add any new options to the end
+ of the switches/n_switches array. */
+
+static void
do_self_spec (spec)
const char *spec;
{
if (access (specs_file, R_OK) == 0)
read_specs (specs_file, TRUE);
+ /* Process any configure-time defaults specified for the command line
+ options, via OPTION_DEFAULT_SPECS. */
+ for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
+ do_option_spec (option_default_specs[i].name,
+ option_default_specs[i].spec);
+
/* Process DRIVER_SELF_SPECS, adding any new options to the end
of the command line. */