what is default path for header file included in c program?

Question

see if i write in any c file like

#include "header.h"

then it will search this file in current directory

but when i write

#include <header.h>

then where it will go to find this file ? what is defualt path for header file included in c program?

see i have installed gstreamer in /usr/local but when i am including

#include <gst/gst.h>

i am geeting fatal error: gst/gst.h: No such file or directory

How can i remove this error?

You can see the answer [here]. [here]: stackoverflow.com/questions/1217943/… — user1004932
– user1004932, Commented Oct 20, 2011 at 10:04

Nate · Accepted Answer · 2011-10-20 10:06:31Z

Try running gcc -v -E -. When I do, part of the output is as follows:

#include <...> search starts here: /usr/lib/gcc/i686-linux-gnu/4.6.1/include /usr/local/include /usr/lib/gcc/i686-linux-gnu/4.6.1/include-fixed /usr/include/i386-linux-gnu /usr/include

It's not an answer to the gstreamer question, but I hope this still helps!

Pulled from here

Tio Pepe · Accepted Answer · 2011-10-20 10:04:37Z

The default paths are

/usr/local/include /usr/include

If you use another path, you can add in your compile command with -I flag. In your case, assuming you have a /usr/local/gst/include directory, you may add -I/usr/local/gst/include and use #include <whatever_you_need.h>

cnicutar · Accepted Answer · 2011-10-20 09:57:29Z

5

The path searched depends on the implementation (and current configuration). The correct way to find the include path is to use pkg-config

pkg-config --cflags gstreamer

answered Oct 20, 2011 at 9:57

cnicutar

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4 Comments

Jeegar Patel Over a year ago

it shows this error --> Package gstreamer was not found in the pkg-config search path. Perhaps you should add the directory containing `gstreamer.pc' to the PKG_CONFIG_PATH environment variable No package 'gstreamer' found

cnicutar Over a year ago

@Mr.32 Perhaps you need to specify a version. Or maybe gstreamer isn't correctly installed. Look in /usr/lib/pkgconfig and /usr/share/pkgconfig.

another.anon.coward Over a year ago

@Mr.32: As cnicutar has pointed out you need to use pkg-config. For gstreamer it is not just gstreamer, it is gstreamer-<version>. As you have installed gstreamer in /usr/local check the output of ls /usr/local/lib/pkgconfig/gstreamer*, you should find a bunch of .pc files. Now try this: export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig then pkg-config --cflags gstreamer-0.10 assuming you found gstreamer-0.10.pc in ls command. Does that show any output?

Jeegar Patel Over a year ago

in tcsh export is not there but i have solved problem by setting gstreamer path using "setenv"

mouviciel · Accepted Answer · 2011-10-20 09:58:19Z

The default path for <> stuff is /usr/include, at least on Unix.

You can add as many default paths as you want with -I /my/new/path compiler option.

John Doe · Accepted Answer · 2021-09-14 03:36:55Z

3

`gcc -print-prog-name=cc1` --verbose

and then CTRL+C

edited Sep 14, 2021 at 3:36

answered Aug 19, 2015 at 13:31

John Doe

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2 Comments

dakab Over a year ago

You could improve your answer by adding a short description what this command does and how it helps with the question.

ChipsLetten Over a year ago

I agree with @dakab, you should explain how this helps the OP

chown · Accepted Answer · 2011-11-18 01:42:50Z

2

you can find those files in:

/usr/include

edited Nov 18, 2011 at 1:42

chown

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answered Oct 20, 2011 at 9:57

0xd

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