Re: libtool dll creation (mingw32 undefined symbols)
Hello John, in addition to Brian's answer: * John Brown wrote on Sat, Apr 28, 2007 at 04:39:33PM CEST: Should I tell the libamrnb maintainer that configure needs to add -no-undefined on Windows, Yes, you should. or Windows users should configure with LDFLAGS=-no-undefined? No. Because configure also uses LDFLAGS for links without libtool (for example AC_CHECK_LIB), which would then likely fail with a linker error (because it does not understand -no-undefined). A decent workaround would be ./configure make LDFLAGS=-no-undefined I just want to know if this behaviour is a bug or a feature. Intended, so not a bug. Hope that helps. Cheers, Ralf ___ http://lists.gnu.org/mailman/listinfo/libtool
Re: libtool dll creation (mingw32 undefined symbols)
Hello Richard, Please keep the libtool list in Cc:, thanks. * richard wrote on Thu, Apr 19, 2007 at 05:45:01PM CEST: Typo: -no-undefined (just one leading hyphen). thanks a lot Ralf, this was the only error. the dll compiles and i get a running .exe in ./libs (tested with wine and winXP). hurray. Actually i thought long parameters are supposed to start with -- or at least there should be an error about a undefined command line switch. Yep, there isn't, I guess there should be. But the way libtool works it's almost impossible to do without lots of noise: link mode only allows very few arguments through to the linker command line unchanged, and of those that it drops/needs to drop, it cannot know whether they would have raised a warning or an error with the system's compiler or linker, respectively. Cheers, Ralf ___ http://lists.gnu.org/mailman/listinfo/libtool
Re: libtool dll creation (mingw32 undefined symbols)
(resend, because i forgot to CC the list) Typo: -no-undefined (just one leading hyphen). thanks a lot Ralf, this was the only error. the dll compiles and i get a running .exe in ./libs (tested with wine and winXP). hurray. Actually i thought long parameters are supposed to start with -- or at least there should be an error about a undefined command line switch. Look at the mdemo test sources, that's a test that uses libltdl. Is that a little better? Oh great, I will look into this. AC_C_CONST FWIW, I don't think you need AC_C_CONST nowadays. I think this one got added out of panic and frustration - i will remove it. Thanks again, Richard ___ http://lists.gnu.org/mailman/listinfo/libtool
Re: libtool dll creation (mingw32 undefined symbols)
Hello Richard, * richard wrote on Tue, Apr 17, 2007 at 11:18:24PM CEST: I'd like to start slow by just crosscompile a executable and a dynamic library, but i fail at building the .dll with libtool complaining about libtool: link: warning: undefined symbols not allowed in i586-pc-mingw32msvc shared libraries [...] The --no-undefined is set for the library, Typo: -no-undefined (just one leading hyphen). i would be very thankful for an simple howto or demo program which accomplishes what i am trying to do. I took a look at the libltdl sources, because they compile perfectly as a dll, but did not manage to get much out of it. Look at the mdemo test sources, that's a test that uses libltdl. Is that a little better? AC_C_CONST FWIW, I don't think you need AC_C_CONST nowadays. Cheers, Ralf ___ http://lists.gnu.org/mailman/listinfo/libtool
