configure: move common libraries to config-host.mak

Move -lm to the end of the line, so that it can be picked up as a
dependency by pixman in the static build case.

Reviewed-by: Peter Maydell <peter.maydell@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
diff --git a/configure b/configure
index c274c5f..01d2b12 100755
--- a/configure
+++ b/configure
@@ -1467,6 +1467,7 @@
             "Make sure to have the zlib libs and headers installed."
     fi
 fi
+libs_softmmu="$libs_softmmu -lz"
 
 ##########################################
 # libseccomp check
@@ -3607,6 +3608,7 @@
 echo "extra_cflags=$EXTRA_CFLAGS" >> $config_host_mak
 echo "extra_ldflags=$EXTRA_LDFLAGS" >> $config_host_mak
 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
+echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
 
 echo "ARCH=$ARCH" >> $config_host_mak
 
@@ -4331,7 +4333,7 @@
 fi
 if test "$target_softmmu" = "yes" ; then
   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
-  echo "LIBS+=$libs_softmmu $target_libs_softmmu" >> $config_target_mak
+  echo "LIBS+=$target_libs_softmmu" >> $config_target_mak
   case "$target_arch2" in
     i386|x86_64)
       echo "CONFIG_HAVE_CORE_DUMP=y" >> $config_target_mak