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[PATCH 2/2] [GDB] Add trailing dash on triplet regexp

This is the GDB patch.

It is very simple, and just a necessary adjustment needed because of the
modifications made in the "make_regexp" functions on libcc1.

Now, GDB will provide a full regexp for triplet names, including the
trailing dash ("-").  Therefore, we will have a regexp that truly
matches the full triplet (e.g., "^(x86_64|i.86)(-[^-]*)?-linux(-gnu)?-")
instead of one that leaves the trailing "-" match to libcc1.

OK to apply?

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2017-08-23  Sergio Durigan Junior  <>

	* compile/compile.c (compile_to_object): Add trailing dash on
	triplet regexp.

diff --git a/gdb/compile/compile.c b/gdb/compile/compile.c
index 91e084f89f..0ce77a8b95 100644
--- a/gdb/compile/compile.c
+++ b/gdb/compile/compile.c
@@ -509,7 +509,7 @@ compile_to_object (struct command_line *cmd, const char *cmd_string,
   arch_rx = gdbarch_gnu_triplet_regexp (gdbarch);
   /* Allow triplets with or without vendor set.  */
-  triplet_rx = concat (arch_rx, "(-[^-]*)?-", os_rx, (char *) NULL);
+  triplet_rx = concat (arch_rx, "(-[^-]*)?-", os_rx, "-", (char *) NULL);
   make_cleanup (xfree, triplet_rx);
   /* Set compiler command-line arguments.  */

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