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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug lto/47225] [4.6 regression]: cross-compile fails while configuring libgcc with "xgcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found"
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47225

--- Comment #37 from Iain Sandoe <iains at gcc dot gnu.org> 2011-02-08 10:10:21 UTC ---
(In reply to comment #36)
> No, it should be added for all targets.

so.. 

Index: lto-plugin/Makefile.am
===================================================================
--- lto-plugin/Makefile.am    (revision 169878)
+++ lto-plugin/Makefile.am    (working copy)
@@ -17,7 +17,7 @@ liblto_plugin_la_SOURCES = lto-plugin.c
 liblto_plugin_la_LIBADD = \
     $(if $(wildcard
../libiberty/pic/libiberty.a),../libiberty/pic/libiberty.a,)
 # Note that we intentionally override the bindir supplied by ACX_LT_HOST_FLAGS
-liblto_plugin_la_LDFLAGS = $(lt_host_flags) -bindir $(libexecsubdir) \
+liblto_plugin_la_LDFLAGS = $(lt_host_flags) -module -bindir $(libexecsubdir) \
     $(if $(wildcard
../libiberty/pic/libiberty.a),,-Wc,../libiberty/libiberty.a)

 all: copy_lto_plugin