[Bug c++/49406] New: Inlining in inheritance seems broken

["neotheone222 at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49406

           Summary: Inlining in inheritance seems broken
           Product: gcc
           Version: 4.5.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: neotheone222@gmail.com


Gcc version: 4.5.2

Target: x86_64-linux-gnu

Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.5.2-8ubuntu4' --with-bugurl=file:///usr/share/doc/gcc-4.5/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.5 --enable-shared --enable-multiarch
--with-multiarch-defaults=x86_64-linux-gnu --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib/x86_64-linux-gnu
--without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.5 --libdir=/usr/lib/x86_64-linux-gnu
--enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --enable-plugin --enable-gold --enable-ld=default
--with-plugin-ld=ld.gold --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

Consider the following two classes: Base and Derived. 
The complete code is as follows:

                          //Base.h
class Base
{
  public:
    void showBase();
};

                          //Base.c++
inline void
Base::showBase()
{
  std::cout << "This is the base class.";
}

                         //Derived.h
class Derived : public Base
{
  public:
    void showDerived();
};

                        //Derived.c++
void
Derived::showDerived()
{
  std::cout << "This is derived class.\n";
  std::cout << "Calling base class method.\n";
  Base::showBase();
}

                       //InlineTest.c++
int main()
{
  Derived derived;
  derived.showDerived();
  return 0;
}

Command-line : g++ InlineText.c++ Base.c++ Derived.c++ -o Inline.o

Compiler error output: /tmp/ccDKDhFN.o: In function `Derived::showDerived()':
Derived.c++:(.text+0x32): undefined reference to `Base::showBase()'
collect2: ld returned 1 exit status