Hi all,

I try to compile a package and I am using the SDK.
libstdc++ works fine, but I try to switch to uClibc++ to save 2 or 3 MB
I used the Makefiles from
http://wiki.openwrt.org/BuildingPackagesHowTo
i.e. "Sample Makefile for C++ shipped with configure script, and uClibc++ linkables"

configure and make works well, but linking fails with:
libQoS.a(QoSServer.o): In function `QoSServer::handleClientSocket(int, void*)':
QoSServer.cpp:(.text+0x2eb4): undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'

There are many more lines, all regarding stdlib stuff.

Any ideas?

Christian Dickmann

uclibc++ may not have everything that is required by your program.

I thought of that, but it seems, that no STL stuff works. Judging from the uclibc website,
everything I use should be supported.
See the error I pasted in the previous post? It referres to a standard string, isn't it?

I am using the libstdc++.so.6 library on my router, but at boot time, it is in .tgz file format, and a script uncompresses it in /tmp, which I believe is in ram.

The compressed file uses 163ko of flash memory and uncompresses in about 2 seconds to 720ko.
I have a symbolic link in /usr/lib that links to the library in /tmp.

Perhaps that would work for you too?

Stanislas

Thank you for this idea. But still not perfect.
I would really like to get uClibc++ running

Finally, I found the problem.
My configure script set the CXX_FLAGS manually, thus overriding the instructions from the OpenWrt-Makefile.
In addition I found a small glitch in the Makefile for uclibc++ provided in the OpenWrt-Wiki. It said $(CC) instead
of $(CP) ...

If I want to contribute to http://wiki.openwrt.org/BuildingPackagesHowTo, which is a Immutable Page, how do
I do that?

Christian Dickmann