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A comment on J40: Independent, self-contained JPEG XL decoder. Parent comment

Re:J40: Independent, self-contained JPEG XL decoder by bjourne on Sunday September 18, 2022 @04:18PM (#32891103)
Since the library is distributed as an 8k long header file, doesn't compilation times explode?
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Re:J40: Independent, self-contained JPEG XL decoder by lifthrasiir on Sunday September 18, 2022 @05:11PM (#32891557)
Most lines of j40.h are only enabled with `#define J40_IMPLEMENTATION`, which should be defined only once.
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Re:J40: Independent, self-contained JPEG XL decoder by bjourne on Sunday September 18, 2022 @05:49PM (#32891817)
Hm, yes, but it still 8k source and, afaik, it will be needlessly recompiled whenever the object file that includes it is modified.
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Re:J40: Independent, self-contained JPEG XL decoder by lifthrasiir on Sunday September 18, 2022 @05:59PM (#32891884)
Including j40.h more than once does nothing. So it can only affect the preprocessing phase, but windows.h is multiple times larger than J40 (even after `#define WIN32_LEAN_AND_MEAN`) and if you can `#include <windows.h>` anywhere J40 can't be a real problem.
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