This is the mail archive of the
gcc-help@gcc.gnu.org
mailing list for the GCC project.
Re: default cflags to compile
On Tue, 20 Dec 2005, Nuno Lopes said:
> Many thanks for your help. I've been able to build a couple of programs and link them. (although I've not tested to run them yet,
> only tomorrow I'll have access to a mips machine).
> However not all programs are linking correctly. I've attached the errors I've got when building a Sony's example
> (http://mega.ist.utl.pt/~ncpl/openr_gcc4.txt).
Oh! Sorry, I missed a bit.
The C++ library include files are very tightly tied to the version of
libstdc++ in use, as `gcc -E -v -x c++ -' shows:
Reading specs from /usr/packages.bin/gcc/3.4.4/bin/../lib/gcc/i686-pc-linux-gnu/3.4.4/specs
Configured with: /usr/packages/gcc/core/configure --with-gnu-ld --with-gnu-as --enable-shared --disable-static --prefix=/usr --verbose --enable-threads --with-system-zlib --enable-__cxa_atexit
Thread model: posix
gcc version 3.4.4
/usr/packages.bin/gcc/3.4.4/bin/../libexec/gcc/i686-pc-linux-gnu/3.4.4/cc1plus -E -quiet -v -iprefix /usr/packages.bin/gcc/3.4.4/bin/../lib/gcc/i686-pc-linux-gnu/3.4.4/ -D_GNU_SOURCE - -mtune=pentiumpro
ignoring nonexistent directory "/usr/packages.bin/gcc/3.4.4/bin/../lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../i686-pc-linux-gnu/include"
ignoring duplicate directory "/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../include/c++/3.4.4"
ignoring duplicate directory "/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../include/c++/3.4.4/i686-pc-linux-gnu"
ignoring duplicate directory "/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../include/c++/3.4.4/backward"
ignoring duplicate directory "/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include"
ignoring nonexistent directory "/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/packages.bin/gcc/3.4.4/bin/../lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../include/c++/3.4.4
/usr/packages.bin/gcc/3.4.4/bin/../lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../include/c++/3.4.4/i686-pc-linux-gnu
/usr/packages.bin/gcc/3.4.4/bin/../lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../include/c++/3.4.4/backward
/usr/packages.bin/gcc/3.4.4/bin/../lib/gcc/i686-pc-linux-gnu/3.4.4/include
/usr/local/include
/usr/include
End of search list.
You'll have to symlink /usr/include/c++/4.0.1 (or whatever) to 3.3.4 (or
whatever), or move the tree, or something like that.
> What do I need to do now to make it link correctly?
Despite the link-time errors, it's actually a compile-time problem.
--
`I must caution that dipping fingers into molten lead
presents several serious dangers.' --- Jearl Walker