| @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
| @c This is part of the GCC manual. |
| @c For copying conditions, see the file gcc.texi. |
| |
| @node Header Dirs |
| @chapter Standard Header File Directories |
| |
| @code{GCC_INCLUDE_DIR} means the same thing for native and cross. It is |
| where GNU CC stores its private include files, and also where GNU CC |
| stores the fixed include files. A cross compiled GNU CC runs |
| @code{fixincludes} on the header files in @file{$(tooldir)/include}. |
| (If the cross compilation header files need to be fixed, they must be |
| installed before GNU CC is built. If the cross compilation header files |
| are already suitable for ISO C and GNU CC, nothing special need be |
| done). |
| |
| @code{GPLUSPLUS_INCLUDE_DIR} means the same thing for native and cross. It |
| is where @code{g++} looks first for header files. The C++ library |
| installs only target independent header files in that directory. |
| |
| @code{LOCAL_INCLUDE_DIR} is used only by native compilers. GNU CC |
| doesn't install anything there. It is normally |
| @file{/usr/local/include}. This is where local additions to a packaged |
| system should place header files. |
| |
| @code{CROSS_INCLUDE_DIR} is used only by cross compilers. GNU CC |
| doesn't install anything there. |
| |
| @code{TOOL_INCLUDE_DIR} is used for both native and cross compilers. It |
| is the place for other packages to install header files that GNU CC will |
| use. For a cross-compiler, this is the equivalent of |
| @file{/usr/include}. When you build a cross-compiler, |
| @code{fixincludes} processes any header files in this directory. |
