- AM_CONDITIONAL(HAVE_DPKG_GENSYMBOLS,[test "x${DPKG_GENSYMBOLS}" != "x:"])
- AM_CONDITIONAL(HAVE_SPHINX,[test "x${SPHINXBUILD}" != "x:"])
- AM_CONDITIONAL(HAVE_RECENT_SPHINX,[test "x${ac_cv_recent_sphinx}" = "xyes"])
+ AM_CONDITIONAL([HAVE_SPHINX],[test "x${SPHINXBUILD}" != "x:"])
+ AM_CONDITIONAL([HAVE_RECENT_SPHINX],[test "x${ac_cv_recent_sphinx}" = "xyes"])
+
+ AS_IF([test "x${ac_cv_recent_sphinx}" = "xyes"],
+ [ifelse([$2], , :, [$2])],
+ [ifelse([$3], , :, [$3])])