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Chapter 2. Portability issues

Table of Contents
2.1. Unicode
2.2. C library
2.3. Compiling Problems

2.1. Unicode

The wchar_t type has different standard sizes in Unix (4 bytes) and Windows (2 bytes). You need a recent gcc version (2.9.7 or later) that supports the -fshort-wchar option to set the size of wchar_t to the one expected by Windows applications.

If you are using Unicode and you want to be able to use standard library calls (e.g. wcslen, wsprintf), then you must use the msvcrt runtime library instead of glibc. The functions in glibc will not work correctly with 16-bit strings.