On Wed, Nov 16, 2005 at 11:53:24AM -0800, Ross Boylan wrote: > On Wed, 2005-11-16 at 19:10 +0000, Mike Frysinger wrote: > > On Wed, Nov 16, 2005 at 10:47:20AM -0800, Ross Boylan wrote: > > > after this line in the makefile output: > > > ./libtool --mode=link g++-3.3 -o test1 -g AbstractTimeStepsGenerator.o > > > Narrowly, can anyone shed any light on the errors reported at the top? > > > > notice that automake invoked > > ./libtool --mode=link g++-3.3 ... > > instead of doing > > ./libtool --mode=link --tag CXX g++-3.3 ... > > I added this to my makefile, and it now seems to be working. > automake wasn't involved.
sorry, i assumed you were using automake since you're using libtool > > this forced libtool to run through its tag configurations and try and > > guess what sort of tag 'g++-3.3' requires (*we* know that it wants to > > use the CXX tag). just peek at the tags written to the end of the > > ./libtool file ... specifically, look at the CXX tag ... or just run: > > grep ^CC= libtool > > chances are you'll get back something like > > CC=gcc > > CC=g++ > > none of these values match 'g++-3.3' thus libtool gives up and goes > > 'well shit, no idea what this is' ... or in libtool speak, 'unable to > > infer tagged configuration' > > It's odd that CC is used for the C++ compiler. dont confuse internal 'CC' with having any particular meaning ... cause it doesnt have any meaning other than 'this is the compiler for this tag configuration' the C tag config usually has 'CC=gcc' while the CXX tag config usually has 'CC=g++' > I see why g++-3.3 would be a problem, but I don't see why g++ works. g++-3.3 pissed libtool off because when it was scanning the tag configs, it does a text match, sort of like '$tagCC == $userCC' ... in this case, libtool ran C tag config: CC=gcc userCC=g++-3.3 ... "$CC" == "$userCC" -> nope CXX tag config: CC=g++ userCC=g++-3.3 ... "$CC" == "$userCC" -> nope no more tags in libtool -> unable to infer tagged configuration that's why g++ works but g++-3.3 did not > Does it have something to do with CC=g++ line? yes > > > In particular, what do I need to reconfigure to make them go away? Do I > > > need to rerun autoconf? configure? something else? > > > > if you regenerated all the files with newer autotools, the code would > > pass the correct --tag option to libtool so that it doesnt need to try > > and guess what it should use > > Rerunning configure didn't help. Was this a reference to the fact that > automake should do the right thing? yes, because i assumed you were using automake if you're running ./libtool yourself in your Makefile, just make sure to use '--tag CXX' when dealing with C++ sources and '--tag CC' when dealing with C sources ... that should handle all the funky compilers a user at your package -mike _______________________________________________ http://lists.gnu.org/mailman/listinfo/libtool
