From the emerge log: libtool: link: ( cd ".libs" && rm -f "liblangtag-gobject.la" && ln -s "../liblangtag-gobject.la" "liblangtag-gobject.la" ) /usr/bin/g-ir-scanner --add-include-path=/var/portage/portage/app-text/liblangtag-0.4.0-r1/work/liblangtag-0.4.0/liblangtag-gobject --warn-all --namespace=LangTag --nsversion=0.4 --libtool="/bin/sh ../libtool" --include=GLib-2.0 --include=GObject-2.0 --library=liblangtag-gobject.la --cflags-begin -I/var/portage/portage/app-text/liblangtag-0.4.0-r1/work/liblangtag-0.4.0/liblangtag/ -I/var/portage/portage/app-text/liblangtag-0.4.0-r1/work/liblangtag-0.4.0 -D__LANGTAG_COMPILATION -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include --symbol-prefix=lt --identifier-prefix=Lt -v --cflags-end lt-database.gir.h lt-error.gir.h lt-ext-module-data.gir.h lt-ext-module.gir.h lt-extension.gir.h lt-extlang-db.gir.h lt-extlang.gir.h lt-grandfathered-db.gir.h lt-grandfathered.gir.h lt-lang-db.gir.h lt-lang.gir.h lt-list.gir.h lt-macros.gir.h lt-redundant-db.gir.h lt-redundant.gir.h lt-region-db.gir.h lt-region.gir.h lt-script-db.gir.h lt-script.gir.h lt-string.gir.h lt-tag.gir.h lt-variant-db.gir.h lt-variant.gir.h lt-error.gir.c lt-ext-module-data.gir.c lt-ext-module.gir.c lt-extension.gir.c lt-extlang-db.gir.c lt-extlang.gir.c lt-grandfathered-db.gir.c lt-grandfathered.gir.c lt-lang-db.gir.c lt-lang.gir.c lt-list.gir.c lt-redundant-db.gir.c lt-redundant.gir.c lt-region-db.gir.c lt-region.gir.c lt-script-db.gir.c lt-script.gir.c lt-string.gir.c lt-tag.gir.c lt-variant-db.gir.c lt-variant.gir.c /var/portage/portage/app-text/liblangtag-0.4.0-r1/work/liblangtag-0.4.0/liblangtag-gobject/lt-gobject.h /var/portage/portage/app-text/liblangtag-0.4.0-r1/work/liblangtag-0.4.0/liblangtag-gobject/lt-gobject.c gir.deps liblangtag-gobject.la Makefile --output LangTag-0.4.gir gcc: error: unrecognized command line option '--symbol-prefix=lt' gcc: error: unrecognized command line option '--identifier-prefix=Lt' gcc is 4.7.2 It emerges fine with USE=-introspection
1) Please attach the complete build log. 2) Please reply with the output of `emerge --info =app-text/liblangtag-0.4.0-r1`.
Can't try this any more. This was on a test installation which has been deleted in the meantime. It works on my production system. However, the test system had gnome 3.8 unmasked, so it had dev-libs/gobject-introspection-common-1.36.0, dev-libs/glib-2.36.0 and dev-libs/gobject-introspection-1.36.0 (and USE settings differing significantly from my production system). Perhaps that caused the problems (can't try this on my production system, too many conflicts...).
Hmm, what could office team do there, i have no idea what introspection is and how it works...
