Package: cpp-7
Version: 7.1.0-7
Severity: normal
Dear Maintainer,
this package provides the plugin
/usr/lib/gcc/x86_64-linux-gnu/7/liblto_plugin.so, which is good (not sure
why it is in package cpp-7 in particular, but I don't care as long as it
is available). However, binutils look for plugins in /usr/lib/bfd-plugins.
So by default:
$ cat e.c
int f(double){}
$ g++ e.c -c && nm e.o
0000000000000000 T _Z1fd
$ g++ e.c -c -flto && nm e.o
nm: e.o: plugin needed to handle lto object
0000000000000001 C __gnu_lto_slim
0000000000000001 C __gnu_lto_v1
If I manually create the directory /usr/lib/bfd-plugins and symlink the
plugin there, I do get
$ nm e.o
00000000 T _Z1fd
See for instance https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78795 for
one place where it causes trouble. According to that link, it does not
matter which version of gcc provides the plugin, so you could for
instance provide the symlink with the package cpp from gcc-defaults
(easiest way to have a single version).
-- System Information:
Debian Release: 9.0
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'testing'), (500, 'stable'), (50,
'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, arm64, ppc64el
Kernel: Linux 4.9.0-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages cpp-7 depends on:
ii gcc-7-base 7.1.0-7
ii libc6 2.24-12
ii libgmp10 2:6.1.2+dfsg-1
ii libisl15 0.18-1
ii libmpc3 1.0.3-1+b2
ii libmpfr4 3.1.5-1
ii zlib1g 1:1.2.8.dfsg-5
cpp-7 recommends no packages.
Versions of packages cpp-7 suggests:
pn gcc-7-locales <none>
-- no debconf information
