https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64967
Bug ID: 64967
Summary: [5 Regression] Bootstrap fails due to errors in
libstdc++ sources with
`--enable-symvers=gnu-versioned-namespace'
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: ai.azuma at gmail dot com
Compile errors occur in stage 1 build of libstdc++ when trying to build GCC
5-20150201 with the following commands on an x86_64-unknown-linux-gnu machine
(Ubuntu 14.04 LTS):
$ $SRCDIR/configure --enable-languages=c,c++
--enable-symvers=gnu-versioned-namespace
$ make
The actual error messages are too long to paste here, but the very beginning of
them are:
/home/cryolite/work/gcc-bugs/20150207/objdir/./gcc/xgcc -shared-libgcc
-B/home/cryolite/work/gcc-bugs/20150207/objdir/./gcc -nostdinc++
-L/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/src
-L/home/cryolit
e/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-B/usr/local/x86_64-unknown-linux-gnu/bin/ -B/usr/local/x86
_64-unknown-linux-gnu/lib/ -isystem /usr/local/x86_64-unknown-linux-gnu/include
-isystem /usr/local/x86_64-unknown-linux-gnu/sys-include -x c++-header
-nostdinc++ -g -O2 -D_GNU_SOURCE
-I/home/cryolite/work/gcc-bugs/20150207/objdir/x86_6
4-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu
-I/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include
-I/home/cryolite/work/gcc-bugs/20150207/gcc-5-20150201/libstdc++-v3/libsupc++
-O2
-g -std=gnu++0x
/home/cryolite/work/gcc-bugs/20150207/gcc-5-20150201/libstdc++-v3/include/precompiled/stdc++.h
\
-o x86_64-unknown-linux-gnu/bits/stdc++.h.gch/O2ggnu++0x.gch
In file included from
/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include/ios:38:0,
from
/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include/istream:38,
from
/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include/sstream:38,
from
/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include/complex:45,
from
/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include/ccomplex:38,
from
/home/cryolite/work/gcc-bugs/20150207/gcc-5-20150201/libstdc++-v3/include/precompiled/stdc++.h:52:
/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include/iosfwd:147:11:
error: ‘basic_stringbuf’ does not name a type
typedef basic_stringbuf<char> stringbuf;
^
/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include/iosfwd:150:11:
error: ‘basic_istringstream’ does not name a type
typedef basic_istringstream<char> istringstream;
^
/home/cryolite/work/gcc-bugs/20150207/objdir/x86_64-unknown-linux-gnu/libstdc++-v3/include/iosfwd:153:11:
error: ‘basic_ostringstream’ does not name a type
typedef basic_ostringstream<char> ostringstream;
^
(snip)
Bootstrap succeeds when `--enable-symvers=gnu-versioned-namespace' is unset.
