The LINK_SPEC for linux gets overwritten by linux-eabi.h which
means the value of TARGET_FIX_V4BX_SPEC gets lost and as a result
the option is not passed to linker when chosing march=armv4
This patch redefines this in linux-eabi.h and reinserts it
for eabi defaulting toolchains.

We might want to send it upstream

-Khem
Index: gcc-4.5/gcc/config/arm/linux-eabi.h
===================================================================
--- gcc-4.5.orig/gcc/config/arm/linux-eabi.h
+++ gcc-4.5/gcc/config/arm/linux-eabi.h
@@ -63,10 +63,14 @@
 #undef  GLIBC_DYNAMIC_LINKER
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
 
+/* For armv4 we pass --fix-v4bx to linker to support EABI */
+#undef TARGET_FIX_V4BX_SPEC
+#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*|march=armv4:--fix-v4bx}"
+
 /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
    use the GNU/Linux version, not the generic BPABI version.  */
 #undef  LINK_SPEC
-#define LINK_SPEC LINUX_TARGET_LINK_SPEC BE8_LINK_SPEC
+#define LINK_SPEC LINUX_TARGET_LINK_SPEC BE8_LINK_SPEC TARGET_FIX_V4BX_SPEC
 
 /* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
    do not use -lfloat.  */