Andrew Pantyukhin wrote:
7zip developers converted some code from C++ to C, while leaving the main stand-alone lzma app in C++. They use 'extern "C" { }' blocks around #include's referencing C headers.Everything compiles fine, but "undefined reference" errors appear at linkage. The undefined references are to the C functions included from withing those 'extern "C"' wrappers. I tried to remove the wrappers from some files and the amount of errors decreased a bit. Is there a better workaround? Google came up with two results: remove the wrappers or use c++ instead of cc. I'm already using c++.
Many of the C headers are available in a different form for C++ programs. For example, in a C++ program you can #include <cstdio> instead of <stdio.h>.
You can use nm(1) on the .o files to see where the problem comes from. Diomidis _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
