A solution for anyone else encountering the bug: 

#include <stdarg>

void eprintf( const char *template, ... ) {
    va_list ap;

    va_start( ap, template );
    vfprintf( stderr, template, ap );
    va_end( ap );
}

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In reply to Re: Inline C: using stderr segfaults? (A solution) by BrowserUk
in thread Inline C: using stderr segfaults? by BrowserUk

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