chore, update sxe-libtool m4 macro package

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
fix, CMake-idiocy, provide onion_CFLAGS/_LIBS AC_ARG_VARs directly, the cmake macro is broken

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, move call of SXE_CHECK_LIBTOOL down

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'bld/dist' into next

* bld/dist:
  chore, move call of SXE_CHECK_LIBTOOL down
  chore, update sxe-libtool m4 macro package