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gcc/g++ don't work in home folder


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


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