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Makedepend is a makefile dependency generator from The XFree86 Project, Inc.
Makedepend reads each sourcefile in sequence and parses it like a
C-preprocessor, processing all #include, #define, #undef, #ifdef, #ifndef,
#endif, #if and #else directives so that it can correctly tell which
#include, directives would be used in a compilation. Any #include,
directives can reference files having other #include directives, and
parsing will occur in these files as well.
Every file that a sourcefile includes, directly or indirectly, is what
makedepend calls a "dependency". These dependencies are then written to a
makefile in such a way that make will know which object files must be
recompiled when a dependency has changed.
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