1037 - #endif without matching #if.
Description
    
Every #endif directive must be preceeded by an accompanying #if directive.
    
Example
    
Config:
    #if __WINDOWS__
#endif
#endif
Output:
C:\Test\fbuild.bff(3,2): FASTBuild Error #1037 - #endif without matching #if.
#endif
 ^
 \--here
Fix:
#if __WINDOWS__
#endif
#if __LINUX__
#endif
    