[Bug bootstrap/54260] New: GCC 4.7.1 fails to build.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54260 Bug #: 54260 Summary: GCC 4.7.1 fails to build. Classification: Unclassified Product: gcc Version: 4.7.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassig...@gcc.gnu.org ReportedBy: fetrov...@gmail.com I don't know where to report this problem --- apologies if this is the wrong place. GCC 4.7.1 is not building for me. I ran configure without any arguments and this is what I get when I do make: mkdir -p -- x86_64-unknown-linux-gnu/libgcc Checking multilib configuration for libgcc... Configuring stage 1 in x86_64-unknown-linux-gnu/libgcc configure: creating cache ./config.cache checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking for --enable-version-specific-runtime-libs... no checking for a BSD-compatible install... /usr/bin/install -c checking for gawk... gawk checking for x86_64-unknown-linux-gnu-ar... ar checking for x86_64-unknown-linux-gnu-lipo... lipo checking for x86_64-unknown-linux-gnu-nm... /home/Feto/sw/gcc/host-x86_64-unknown-linux-gnu/gcc/nm checking for x86_64-unknown-linux-gnu-ranlib... ranlib checking for x86_64-unknown-linux-gnu-strip... strip checking whether ln -s works... yes checking for x86_64-unknown-linux-gnu-gcc... /home/Feto/sw/gcc/host-x86_64-unknown-linux-gnu/gcc/xgcc -B/home/Feto/sw/gcc/host-x86_64-unknown-linux-gnu/gcc/ -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 checking for suffix of object files... configure: error: in `/home/Feto/sw/gcc/x86_64-unknown-linux-gnu/libgcc': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details. make[2]: *** [configure-stage1-target-libgcc] Error 1 make[2]: Leaving directory `/home/Feto/sw/gcc' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/home/Feto/sw/gcc' make: *** [all] Error 2 [Feto@fet gcc]$ Thank you! - Daniel
[Bug bootstrap/54260] GCC 4.7.1 fails to build.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54260
--- Comment #3 from Feto 2012-08-15 23:48:07 UTC
---
Hi,
Thanks for the response. I've looked at the corresponding config.log, and
looked into the problems there, but I can't seem to make sense of what's going
on. I get:
98 configure:3373: /home/Feto/sw/gcc/build/./gcc/xgcc
-B/home/Feto/sw/gcc/build/./gcc/ -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-o conftest -g -O2
conftest.c >&5
99 /home/Feto/sw/gcc/build/./gcc/cc1: error while loading shared libraries:
libmpc.so.2: cannot open shared object
file: No such file or directory
100 configure:3376: $? = 1
101 configure:3564: checking for suffix of object files
102 configure:3586: /home/Feto/sw/gcc/build/./gcc/xgcc
-B/home/Feto/sw/gcc/build/./gcc/ -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-c -g -O2
conftest.c >&5
103 /home/Feto/sw/gcc/build/./gcc/cc1: error while loading shared libraries:
libmpc.so.2: cannot open shared object
file: No such file or directory
104 configure:3590: $? = 1
105 configure: failed program was:
106 | /* confdefs.h */
107 | #define PACKAGE_NAME "GNU C Runtime Library"
108 | #define PACKAGE_TARNAME "libgcc"
109 | #define PACKAGE_VERSION "1.0"
110 | #define PACKAGE_STRING "GNU C Runtime Library 1.0"
111 | #define PACKAGE_BUGREPORT ""
112 | #define PACKAGE_URL "http://www.gnu.org/software/libgcc/";
113 | /* end confdefs.h. */
114 |
115 | int
116 | main ()
117 | {
118 |
119 | ;
120 | return 0;
121 | }
122 configure:3604: error: in
`/home/Feto/sw/gcc/build/x86_64-unknown-linux-gnu/libgcc':
123 configure:3607: error: cannot compute suffix of object files: cannot
compile
124 See `config.log' for more details.
So I tried compiling the test file (conftest.c) like so:
/home/Feto/sw/gcc/build/./gcc/xgcc -B/home/Feto/sw/gcc/build/./gcc/
-B/usr/local/x86_64-unknown-linux-gnu/bin/
-B/usr/local/x86_64-unknown-linux-gnu/lib/ -isystem
/usr/local/x86_64-unknown-linux-gnu/include -isystem
/usr/local/x86_64-unknown-linux-gnu/sys-include-o conftest -g -O2
conftest.c
I made sure libmpc is properly installed, the proper location is passed to
configure, and so on. I'm not sure what else to try.
[Feto@fet libgcc]$ ll /usr/local/lib/libmpc*
-rw-r--r-- 1 root root 211870 Aug 14 15:27 /usr/local/lib/libmpc.a
-rwxr-xr-x 1 root root946 Aug 14 15:27 /usr/local/lib/libmpc.la
lrwxrwxrwx 1 root root 15 Aug 14 15:27 /usr/local/lib/libmpc.so ->
libmpc.so.2.0.0
lrwxrwxrwx 1 root root 15 Aug 14 15:27 /usr/local/lib/libmpc.so.2 ->
libmpc.so.2.0.0
-rwxr-xr-x 1 root root 98008 Aug 14 15:27 /usr/local/lib/libmpc.so.2.0.0
[Feto@fet libgcc]$ ld -lmpc
ld: warning: cannot find entry symbol _start; not setting start address
[Feto@fet libgcc]$
Thank you,
- Daniel
[Bug c++/50681] New: A constexpr identifier in a header file generates undefined symbols in object code.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50681
Bug #: 50681
Summary: A constexpr identifier in a header file generates
undefined symbols in object code.
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: fetrov...@gmail.com
kMaxValue in class template Cursor generates an undefined symbol in the object
code. Since the value isn't defined anywhere else, I get an undefined symbol
error from the linker.
template
class Cursor {
public:
typedef std::pair Pair;
private:
Pair _position;
public:
static Type constexpr kMaxValue =
std::numeric_limits::max();
Cursor(Pair const& size = Pair(kMaxValue, kMaxValue)):
_position(size.first, size.first) {}
};
Example usage:
class UI {
private:
Cursor<> _cursor;
public:
virtual Cursor<>::Pair GetSize() {
return make_pair(0, 0);
}
};
int main() {
return UI().GetSize().first;
}
Linker message:
x.cpp:(.text._ZN2UIC2Ev[_ZN2UIC5Ev]+0x1c): undefined reference to
`Cursor::kMaxValue'
x.cpp:(.text._ZN2UIC2Ev[_ZN2UIC5Ev]+0x21): undefined reference to
`Cursor::kMaxValue'
[Bug c++/50681] A constexpr identifier in a header file generates undefined symbols in object code.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50681 Feto changed: What|Removed |Added URL||http://ideone.com/kfs6n CC||Fetrovsky at gmail dot com Severity|normal |major
[Bug c++/51048] New: Class template inheritance doesn't work well with function-local types
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51048
Bug #: 51048
Summary: Class template inheritance doesn't work well with
function-local types
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: fetrov...@gmail.com
#include
template
struct A {
X x;
virtual X const& Push(X const& x) = 0;
template
X const& Push(Y const& y) {
for (std::size_t i = 0; i < y.size(); ++i)
Push(y[i]);
}
};
template
struct B: A {
using A::Push;
virtual X const& Push(X const& x) { return A::x = x; }
};
int F() {
enum S { x, y };
return B().Push(std::vector(3, x));
}
int main() {
return F();
}
I get the following:
prog.cpp:7:23: error: 'const X& A::Push(const X&) [with X = F()::S]',
declared using local type 'const F()::S', is used but never defined
If I take S out of F() and define it in the global namespace, it works fine.
