Hi I have these versions of gcc/g++ $ ls /usr/bin/gcc* -l lrwxrwxrwx 1 root root 7 Mar 13 2012 /usr/bin/gcc -> gcc-4.6 -rwxr-xr-x 1 root root 92888 Mar 16 2006 /usr/bin/gcc-3.4 -rwxr-xr-x 1 root root 259232 Apr 16 2012 /usr/bin/gcc-4.4 -rwxr-xr-x 1 root root 353216 Apr 16 2012 /usr/bin/gcc-4.6 $ ls -l /usr/bin/g++* lrwxrwxrwx 1 root root 7 Mar 13 2012 /usr/bin/g++ -> g++-4.6 -rwxr-xr-x 1 root root 94808 Mar 16 2006 /usr/bin/g++-3.4 lrwxrwxrwx 1 root root 52 Feb 6 23:32 /usr/bin/g++-4.1 -> /opt/gcc-4.1.2/host-x86_64-unknown-linux-gnu/gcc/g++ -rwxr-xr-x 1 root root 263328 Apr 16 2012 /usr/bin/g++-4.4 -rwxr-xr-x 1 root root 357312 Apr 16 2012 /usr/bin/g++-4.6 I don't know what happened to my ubuntu 12.04, that when I run "g++" command in the home folder, I get weird response mahmood@pc:~$ g++ -v Reading specs from ./specs g++: ./specs: Is a directory mahmood@pc:~$ /usr/bin/gcc-4.4 -v Reading specs from ./specs gcc-4.4: ./specs: Is a directory mahmood@pc:~$ /usr/bin/g++-4.6 g++-4.6: error: ./specs: Is a directory 'specs' is a folder in my home. However when I run the same command in another folder (~/trunk), there is no problem. mahmood@pc:trunk$ g++ -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ./configure --disable-multilib Thread model: posix gcc version 4.1.2 mahmood@pc:trunk$ /usr/bin/gcc-4.4 -v Using built-in specs. Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.4.7-1ubuntu2' --with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.4 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.4.7 (Ubuntu/Linaro 4.4.7-1ubuntu2) mahmood@pc:trunk$ /usr/bin/g++-4.6 g++-4.6: fatal error: no input files compilation terminated. This is the first time I see such a problem. Regards, Mahmood
