Unix and Linux Stack Exchange
Unix and Linux Stack Exchange

Questions tagged [header-file]

86 questions
44
votes
3 answers

What exactly are Linux kernel headers?

Possible Duplicate: What does a kernel source tree contain? Is this related to Linux kernel headers? I know that if I want to compile my own Linux kernel I need the Linux kernel headers, but what exactly are they good for? I found out that under…
JohnnyFromBF
  • 3,476
  • 10
  • 32
  • 42
13
votes
1 answer

Difference between /usr/include/sys and /usr/include/linux?

Well, obviously there is a difference, but I'm curious about the rational behind why some things go under /usr/include/sys and others go under /usr/include/linux, and have the same header file name? Does this have something to do with POSIX vx…
Jeff
  • 233
  • 2
  • 6
12
votes
1 answer

What does 'uni' mean in unistd.h

What does uni mean in unistd.h Does it mean unix? or universal? What is it?
Benjamin
  • 1,505
  • 2
  • 18
  • 25
11
votes
4 answers

Using real time kernel headers to compile userspace code vs default headers

Per customer requirements, I installed CentOS 5.6 with the default kernel. With this kernel installed, the time.h file includes the #define CLOCK_MONOTONIC. Now, a real-time kernel was installed along with the kernel-devel and our code would like to…
cabanaboy
  • 111
  • 3
10
votes
2 answers

Which header defines the macro that specifies the machine architecture?

Shorter version of question: Which C header contains the macro that corresponds to the machine architecture of the system (e.g., __x86_64__, __ia64__, __mips__?) Longer version of question: I'd like to run the ganglia monitoring tools on a…
Lorin Hochstein
  • 8,077
  • 17
  • 50
  • 56
9
votes
2 answers

Why is there no WORD_BIT in limits.h on Linux?

From the manpage man limits.h: {WORD_BIT} Number of bits in an object of type int. Minimum Acceptable Value: 32 However if I run a simple program: #include #include int main() { …
rahmu
  • 19,673
  • 28
  • 87
  • 128
9
votes
2 answers

"sys/ioctl.h" header in linux

I am on Linux 2.6.32-26-generic When I look in to the linux source code for "ioctl.h" hearer file, I could see many variants. (for different platforms, I guess).…
hari
  • 2,400
  • 4
  • 21
  • 22
8
votes
2 answers

What package could "linux-headers-3.7.5-1-ARCH" mean?

I'm debugging a closed-source software installer that seems to have some pre-conceived notions about my distribution. The installation aborts after not finding apt-get. The command it attempts to run is: apt-get -y -q install…
Anna
  • 1,119
  • 1
  • 11
  • 23
7
votes
1 answer

How to create Linux Kernel Headers from Linux Kernel Source?

I'm working with Tiny Core Linux and attempting to install Vmware Tools, which of course needs the Kernel Headers :-). It does not appear they have the Kernel Headers readily available in a package, but they do have the kernel source. As a result I…
Doug
  • 439
  • 1
  • 4
  • 11
7
votes
2 answers

Compiler cannot find header file, do I add the directory to PATH?

I am trying to work with gtk which is located at /usr/include/gtk-3.0/gtk/ .., but all of the header files in the toolkit have #include . Aside from adding /usr/local/gtk-3.0 to PATH or adding gtk-3.0 to all the include preprocessors,…
sherrellbc
  • 2,461
  • 7
  • 28
  • 41
6
votes
1 answer

Detached LUKS-header on Debian-based GNU/Linux

There is scattered information on how to set up a detached header for a LUKS-encrypted disk on Stack Exchange.  And by searching the web using Google, I found limited information.  Some of the best information I found is linked to at the bottom of…
Mikkel Rev
  • 243
  • 1
  • 8
6
votes
2 answers

Get header of the C function from BASH

I want to get the header(s) that I need for a given C function - e.g. when I want to see what to include when I want to use fork(), I can type out man fork and see that it's #include . However, I'd like to do it "automatically"(without me…
MatthewRock
  • 6,826
  • 6
  • 31
  • 54
5
votes
2 answers

configure: error: libcurl >= 7.28.0 library and headers are required with support for https

Hi I met an issue when I tried to configure for R installation. Basically, I tried to follow my previous installation process, (For some reason, I need to reinstall the same R in CentOS6 instead of CentOS5) ./configure…
Jun
  • 531
  • 4
  • 8
  • 20
5
votes
2 answers

Command to install linux headers fails

I need to install my linux headers for an Nvidia driver install. But I get an error when doing so: peter@peter-deb:~$ sudo apt-get install linux-headers-$(uname -r) Reading package lists... Done Building dependency tree Reading state…
ptrcao
  • 5,455
  • 11
  • 36
  • 44
4
votes
4 answers

Ubuntu: can't find ndbm.h

I need to compile an old Apache version, 1.3, and the compilation process fails because: mod_auth_dbm.c:77:18: fatal error: ndbm.h: File or directory not found Where is this ndbm.h file?
Phate
  • 319
  • 2
  • 6
  • 13
1
2 3 4 5 6