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I need to compile some files with a usage of modified versions of standard library headers. With Visual C++ compiler I will do this by usage of /X (Ignore Standard Include Paths) and /I (Additional Include Directories) parameters. How this should be done with gcc?
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includePath An include path is a folder that contains header files (such as #include "myHeaderFile. h" ) that are included in a source file. Specify a list of paths for the IntelliSense engine to use while searching for included header files.
GCC looks for headers requested with #include " file " first in the directory containing the current file, then in the directories as specified by -iquote options, then in the same places it would have looked for a header requested with angle brackets. For example, if /usr/include/sys/stat. h contains #include "types.
A sysroot is a folder which contains a minimal filesystem (especially libraries, the C library and header files). An example sysroot could look like this: 'sysroot/usr', 'sysroot/usr/lib', 'sysroot/usr/include'.
gcc -I adds include directory of header files.
gcc -nostdinc -I/custom/include/path/goes/here -nostdinc ignores standard C include directories-nostdinc++ ignores standard C++ include directories
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