c - Includes in libclang headers -

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i looking through libclang headers here(http://llvm.org/svn/llvm-project/cfe/trunk/include/clang-c/) in noticed of headers have imports in 

#include "clang-c/platform.h" // in cxstring.h  // in index.h #include "clang-c/platform.h" #include "clang-c/cxstring.h"

i'm unable understand why headers prefixed clang-c/ since of them in same directory shouldn't rather have been ./platform.h ./cxstring.h , likewise.

if headers end installed in /usr/local/include/clang-c directory, sake of argument, command line option -i /usr/local/include ensure #include "clang-c/platform.h" found. if subdirectory not specified, you'd have have -i /usr/local/include/clang-c on command line. provides partitioning , separation; clang-c/platform.h separate file platform.h other package.

note headers such <sys/wait.h> use scheme, sys in question o/s , headers found in /usr/include/sys (but not have specify -i /usr/include/sys on compiler command line because preprocessor searches in /usr/include default).


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