kexec: fix compilation with gcc 4.6

gcc 4.6 has stricter checks for invalid command-line options.
Fix compilation by passing linker options with -Wl,

Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/kexec/kexec-fix-linker-options.patch

@@ -0,0 +1,15 @@
+Fix compilation with gcc 4.6 by correcting the way that linker options
+are passed to gcc.
+
+Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>
+--- kexec-2.0.2/purgatory/Makefile.orig	2011-09-26 14:16:44.256595912 +0200
++++ kexec-2.0.2/purgatory/Makefile	2011-09-26 14:17:01.606621357 +0200
+@@ -56,7 +56,7 @@
+ 			-I$(srcdir)/include \
+ 			-I$(shell $(CC) -print-file-name=include)
+ $(PURGATORY): LDFLAGS=$($(ARCH)_PURGATORY_EXTRA_CFLAGS)\
+-			--no-undefined -nostartfiles -nostdlib -nodefaultlibs \
++			-Wl,-no-undefined -nostartfiles -nostdlib -nodefaultlibs \
+ 			-e purgatory_start -r
+ 
+ $(PURGATORY): $(PURGATORY_OBJS)