Hi! For some years now, I've been working on and off on adding MSVC support w/o wrapper scripts to libtool (see the pr-msvc-support branch in libtool git) and have run into an issue that has been brought up here before.
http://lists.gnu.org/archive/html/automake/2007-06/msg00083.html I was trying to fix the am-subdir.at test in the libtool testsuite. That test uses C++ and compiles in subdirs, so it's really no big surprise that MSVC is in trouble there. In short, MSVC w/o wrapper needs AM_PROG_CXX_C_O for that test to work (a few other minor tweeks might also be needed, methinks...). Can such a macro be added to automake, please? Cheers, Peter (not subscribed, please CC)
