On Dec 2, 2012 2:04 AM, "y y" wrote: > > Hi, > I have built gcc 4.8 successfully with the configuration: > ../gcc-trunk/configure -v --with-pkgversion='ubuntu12.04-64' > --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr > --program-suffix=-4.8 --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++/4.8 > --libdir=/usr/lib --enable-nls --with-sysroot=/ Why are you using --with-sysroot ? --enable-clocale=gnu > --enable-libstdcxx-debug --enable-libstdcxx-time=yes > --enable-gnu-unique-object --enable-plugin --enable-objc-gc > --disable-werror --with-arch-32=native --with-tune=native > --enable-checking=release --build=x86_64-linux-gnu > --host=x86_64-linux-gnu --target=x86_64-linux-gnu > > However, when I try to compile a test file, the search path is really strange: > ignoring nonexistent > directory“usr/include/c++/4.8”******************************************There > is no slash! > ignoring nonexistent > directory“usr/include/c++/4.8/x86_64-linux-gnu/.”********************There > is no slash! > ignoring nonexistent > directory“usr/include/c++/4.8/backward”******************************There > is no slash! > ignoring nonexistent directory“/usr/local/include/x86_64-linux-gnu” > ignoring nonexistent > directory“/usr/lib/gcc/x86_64-linux-gnu/4.8.0/../../../../x86_64-linux-gnu/include” > > Any one can help? Thank you! > > Regards, > Yao Yuan.
