pkgconf hangs with ~ at EOF in .pc file #384
Description
I'm not sure if this is the same as #380, thought it better to file separately to avoid a mess over there.
Originally reported at https://bugs.gentoo.org/950707 where someone gave me --debug logs from pkg-config --variable=completionsdir bash-completion --debug hanging (note that we'd also had https://bugs.gentoo.org/950316 about CLucene's .pc file being invalid).
This hangs for me, from clucene (note the trailing ~):
prefix=/usr
exec_prefix=${prefix}/bin
libdir=${prefix}/lib64
includedir=${prefix}/include:${prefix}/include/CLucene/ext
Name: libclucene
Description: CLucene - a C++ search engine, ported from the popular Apache Lucene
Version: 2.3.3.4
Libs: -L${prefix}/lib64/ -lclucene-core -lclucene-shared
Cflags: -I${prefix}/include -I${prefix}/include/CLucene/ext
~
$ pkg-config --maximum-traverse-depth=1 --validate libclucene-core.pc --debug
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/dependency.c:115 [add_or_replace_dependency_node]: added dependency [libclucene-core.pc] to list @0x7fff3a1a9a90; flags=4
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/dependency.c:232 [pkgconf_dependency_ref]: libclucene-core.pc refcount@0x5a5056b77860: 1
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/queue.c:240 [pkgconf_queue_verify]: solving
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/pkg.c:1715 [pkgconf_pkg_traverse_main]: user:request: level 1, serial 1
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/pkg.c:1732 [pkgconf_pkg_traverse_main]: user:request: walking 'Requires' list
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/pkg.c:1459 [pkgconf_pkg_verify_dependency]: trying to verify dependency: libclucene-core.pc
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/pkg.c:847 [pkgconf_pkg_find]: looking for: libclucene-core.pc
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/pkg.c:854 [pkgconf_pkg_find]: libclucene-core.pc is a file
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:251 [pkgconf_tuple_add]: adding tuple to @0x5a5056b77ff0: pcfiledir => libclucene-core.pc (parsed? 1)
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:251 [pkgconf_tuple_add]: adding tuple to @0x5a5056b77ff0: prefix => /usr (parsed? 1)
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:358 [pkgconf_tuple_parse]: lookup tuple prefix
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:251 [pkgconf_tuple_add]: adding tuple to @0x5a5056b77ff0: exec_prefix => /usr/bin (parsed? 1)
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:358 [pkgconf_tuple_parse]: lookup tuple prefix
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:251 [pkgconf_tuple_add]: adding tuple to @0x5a5056b77ff0: libdir => /usr/lib64 (parsed? 1)
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:358 [pkgconf_tuple_parse]: lookup tuple prefix
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:358 [pkgconf_tuple_parse]: lookup tuple prefix
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:251 [pkgconf_tuple_add]: adding tuple to @0x5a5056b77ff0: includedir => /usr/include:/usr/include/CLucene/ext (parsed? 1)
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:358 [pkgconf_tuple_parse]: lookup tuple prefix
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:740 [pkgconf_fragment_parse]: post-subst: [-L${prefix}/lib64/ -lclucene-core -lclucene-shared] -> [-L/usr/lib64/ -lclucene-core -lclucene-shared]
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:752 [pkgconf_fragment_parse]: processing -L/usr/lib64/
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:215 [pkgconf_fragment_add]: added fragment {L, '/usr/lib64/'} to list @0x5a5056b77f30
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:752 [pkgconf_fragment_parse]: processing -lclucene-core
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:215 [pkgconf_fragment_add]: added fragment {l, 'clucene-core'} to list @0x5a5056b77f30
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:752 [pkgconf_fragment_parse]: processing -lclucene-shared
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:215 [pkgconf_fragment_add]: added fragment {l, 'clucene-shared'} to list @0x5a5056b77f30
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:358 [pkgconf_tuple_parse]: lookup tuple prefix
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/tuple.c:358 [pkgconf_tuple_parse]: lookup tuple prefix
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:740 [pkgconf_fragment_parse]: post-subst: [-I${prefix}/include -I${prefix}/include/CLucene/ext] -> [-I/usr/include -I/usr/include/CLucene/ext]
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:752 [pkgconf_fragment_parse]: processing -I/usr/include
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:215 [pkgconf_fragment_add]: added fragment {I, '/usr/include'} to list @0x5a5056b77f60
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:752 [pkgconf_fragment_parse]: processing -I/usr/include/CLucene/ext
/var/tmp/portage/dev-util/pkgconf-2.4.1/work/pkgconf-2.4.1/libpkgconf/fragment.c:215 [pkgconf_fragment_add]: added fragment {I, '/usr/include/CLucene/ext'} to list @0x5a5056b77f60
# stuck
0x000076f29fd69704 in pkgconf_parser_parse (f=f@entry=0x58c2e395ccf0, data=data@entry=0x58c2e395ced0, ops=ops@entry=0x76f29fd72960 <pkg_parser_funcs>,
warnfunc=warnfunc@entry=0x76f29fd5b1b0 <pkg_warn_func>, filename=filename@entry=0x58c2e395c840 "libclucene-core.pc")
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/parser.c:44
44 lineno++;
(gdb) bt
#0 0x000076f29fd69704 in pkgconf_parser_parse (f=f@entry=0x58c2e395ccf0, data=data@entry=0x58c2e395ced0, ops=ops@entry=0x76f29fd72960 <pkg_parser_funcs>,
warnfunc=warnfunc@entry=0x76f29fd5b1b0 <pkg_warn_func>, filename=filename@entry=0x58c2e395c840 "libclucene-core.pc")
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/parser.c:44
#1 0x000076f29fd5fd8a in pkgconf_pkg_new_from_file (client=0x58c2df9e4880 <pkg_client>, filename=<optimized out>, f=0x58c2e395ccf0, flags=<optimized out>)
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/pkg.c:543
#2 0x000076f29fd6028e in pkgconf_pkg_find (client=0x58c2df9e4880 <pkg_client>, name=0x58c2e395c8c0 "libclucene-core.pc")
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/pkg.c:856
#3 0x000076f29fd608cb in pkgconf_pkg_verify_dependency (client=0x58c2df9e4880 <pkg_client>, pkgdep=0x58c2e395c860, eflags=0x7ffe57646774)
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/pkg.c:1467
#4 pkgconf_pkg_verify_dependency (client=0x58c2df9e4880 <pkg_client>, pkgdep=0x58c2e395c860, eflags=0x7ffe57646774)
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/pkg.c:1452
#5 0x000076f29fd6167b in pkgconf_pkg_walk_list (client=client@entry=0x58c2df9e4880 <pkg_client>, parent=parent@entry=0x7ffe57646880, deplist=deplist@entry=0x7ffe57646940,
func=func@entry=0x0, data=data@entry=0x0, depth=depth@entry=1, skip_flags=0) at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/pkg.c:1579
#6 0x000076f29fd610e6 in pkgconf_pkg_traverse_main (client=0x58c2df9e4880 <pkg_client>, root=<optimized out>, func=0x0, data=<optimized out>, maxdepth=1, skip_flags=0)
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/pkg.c:1733
#7 0x000076f29fd67efd in pkgconf_pkg_traverse (client=0x58c2df9e4880 <pkg_client>, root=0x7ffe57646880, func=0x0, data=0x0, maxdepth=1, skip_flags=<optimized out>)
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/pkg.c:1764
#8 pkgconf_queue_verify (client=client@entry=0x58c2df9e4880 <pkg_client>, world=world@entry=0x7ffe57646b50, list=list@entry=0x7ffe57646af0, maxdepth=1)
at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/queue.c:241
#9 0x000076f29fd68632 in pkgconf_queue_solve (client=client@entry=0x58c2df9e4880 <pkg_client>, list=list@entry=0x7ffe57646af0, world=world@entry=0x7ffe57646b50,
maxdepth=<optimized out>) at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/libpkgconf/queue.c:323
#10 0x000058c2df9dca39 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/dev-util/pkgconf-2.4.1/pkgconf-2.4.1/cli/main.c:1570