Hi Simon, > Recently gnulib added some self-tests written in C++ for otherwise > C-only modules. When imported into libidn (otherwise a strictly C > library), this leads to an error message: > > /bin/bash ../libtool --preserve-dup-deps --mode=link g++ -o > test-fcntl-h-c++ test-fcntl-h-c++.o libtests.a ../gl/libgnu.la libtests.a > libtool: link: unable to infer tagged configuration > libtool: link: specify a tag with `--tag' > make[4]: *** [test-fcntl-h-c++] Error 1 > make[4]: Leaving directory `/home/jas/src/libidn/gltests'
Hmm. When I do $ ./gnulib-tool --create-testdir --dir=/tmp/testdir --with-tests --libtool fcntl-h and configure and build that testdir, everything works fine, including these commands: ... g++ -DHAVE_CONFIG_H -I. -I. -I. -I.. -I./.. -I../gllib -I./../gllib -MT test-fcntl-h-c++.o -MD -MP -MF .deps/test-fcntl-h-c++.Tpo -c -o test-fcntl-h-c++.o test-fcntl-h-c++.cc mv -f .deps/test-fcntl-h-c++.Tpo .deps/test-fcntl-h-c++.Po /bin/sh ./libtool --mode=link g++ -o test-fcntl-h-c++ test-fcntl-h-c++.o ../gllib/libgnu.la libtool: link: g++ -o test-fcntl-h-c++ test-fcntl-h-c++.o ../gllib/.libs/libgnu.a ... This is for both --disable-shared and --enable-shared, with or without --preserve-dup-deps. So I guess you have an older version of libtool? The version that works for me is 2.2.6. Or maybe you have other options as part of the LT_INIT invocation in configure.ac? Bruno
