# DP: Ignore dpkg's pie specs when pie is not enabled.

Index: b/src/gcc/gcc.c
===================================================================
--- a/src/gcc/gcc.c
+++ b/src/gcc/gcc.c
@@ -3715,6 +3715,36 @@ handle_foffload_option (const char *arg)
     }
 }
 
+static bool ignore_pie_specs_when_not_enabled(const char *envvar,
+					      const char *specname)
+{
+  const char *envval = secure_getenv(envvar);
+  char *hardening;
+  bool ignore;
+
+  if (strstr (specname, "/pie-compile.specs") == NULL
+      && strstr (specname, "/pie-link.specs") == NULL)
+    return false;
+  if (envval == NULL || strstr (envval, "hardening=") == NULL)
+    return true;
+  ignore = true;
+  hardening = (char *) xmalloc (strlen(envval) + 1);
+  strcpy (hardening, strstr (envval, "hardening="));
+  if (strchr (hardening, ' '))
+    *strchr (hardening, ' ') = '\0';
+  if (strstr(hardening, "+all"))
+    {
+      if (strstr(hardening, "-pie") == NULL)
+	ignore = false;
+    }
+  else if (strstr(hardening, "+pie"))
+    {
+      ignore = false;
+    }
+  free (hardening);
+  return ignore;
+}
+
 /* Handle a driver option; arguments and return value as for
    handle_option.  */
 
@@ -3989,6 +4019,12 @@ driver_handle_option (struct gcc_options
       break;
 
     case OPT_specs_:
+      if (ignore_pie_specs_when_not_enabled("DEB_BUILD_MAINT_OPTIONS", arg)
+	  && ignore_pie_specs_when_not_enabled("DEB_BUILD_OPTIONS", arg))
+	{
+	  inform (0, "pie specs %s ignored when pie is not enabled", arg);
+	  return true;
+	}
       {
 	struct user_specs *user = XNEW (struct user_specs);