* ld.h (ld_config_type): Add new field warn_once.

	* ldmain.c (undefined_symbol): Handle -warn-once.
	* lexsup.c (parse_args): Recognize -warn-once.
	* ld.texinfo (Options): Document -warn-once.
	* ld.1: Likewise.
PR 4456.

1 files changed, 12 insertions, 0 deletions

diff --git a/ld/ld.h b/ld/ld.h
index ff654a6..d23633e 100644
--- a/ld/ld.h
+++ b/ld/ld.h
@@ -49,6 +49,15 @@ typedef struct
   /* 1 => assign space to common symbols even if `relocatable_output'.  */
   boolean force_common_definition;
   boolean relax;
+
+  /* Name of runtime interpreter to invoke.  */
+  char *interpreter;
+
+  /* Name to give runtime libary from the -soname argument.  */
+  char *soname;
+
+  /* Runtime library search path from the -rpath argument.  */
+  char *rpath;
 } args_type;
 
 extern args_type command_line;
@@ -72,6 +81,9 @@ typedef struct
   /* If true, warn about merging common symbols with others.  */
   boolean warn_common;
 
+  /* If true, only warn once about a particular undefined symbol.  */
+  boolean warn_once;
+
   boolean sort_common;
 
   boolean text_read_only;