[PATCH v2] gdbserver: fix the standalone build

[Mircea Gherzan <mircea.gherzan@intel.com>]

When directly invoking gdb/gdbserver/configure && make, the build will
fail because the $(host_alias) is empty and thus create-version.sh does
not get enough parameters.

Ok to apply?

2013-06-28  Mircea Gherzan  <mircea.gherzan@intel.com>

gdbserver:

	* Makefile.in (host): Add it.
	(target): Add it.
	(host_alias): If empty, assign $(host) to it.
	(target_alias): If empty, assign $(target) to it.

Signed-off-by: Mircea Gherzan <mircea.gherzan@intel.com>
---
 gdb/gdbserver/Makefile.in | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
index e5ecdd3..4b833bd 100644
--- a/gdb/gdbserver/Makefile.in
+++ b/gdb/gdbserver/Makefile.in
@@ -18,6 +18,8 @@
 prefix = @prefix@
 exec_prefix = @exec_prefix@
 
+host = @host@
+target = @target@
 host_alias = @host_alias@
 target_alias = @target_alias@
 program_transform_name = @program_transform_name@
@@ -25,6 +27,14 @@ bindir = @bindir@
 libdir = @libdir@
 tooldir = $(libdir)/$(target_alias)
 
+ifeq ($(host_alias),)
+  host_alias = $(host)
+endif
+
+ifeq ($(target_alias),)
+  target_alias = $(target)
+endif 
+
 datarootdir = @datarootdir@
 datadir = @datadir@
 mandir = @mandir@
-- 
1.7.12.4