ext_builddir = ./ext
ext_headers = \
${ext_srcdir}/algorithm \
+ ${ext_srcdir}/functional \
${ext_srcdir}/hash_map \
${ext_srcdir}/hash_set \
${ext_srcdir}/iterator \
${ext_srcdir}/memory \
+ ${ext_srcdir}/numeric \
${ext_srcdir}/rope \
${ext_srcdir}/ropeimpl.h \
${ext_srcdir}/slist \