When building LyX version 1.3.x from source on Cygwin, I had problems during the final link stage where gcc-3.3.1 reported some undefined symbols. All of the 'undefined' symbols were actually defined in the LyX source code, and the compilation proceeded without errors on Linux. I found that the compilation was also successful on Cygwin once the #pragma interface/implementation statements were removed from the LyX source code. The LyX developers had taken reasonable care to protect the #pragma statements from incompatible compilers by using "#ifdef __GNUG__ " wrappers, but that did not seem to be good enough.
Does this experience reflect a bug in the gcc toolchain? Or are the LyX developers using #pragma statements incorrectly?
Milton Woods.
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