Fatal error: 'Xm/Xm.h' file not found , motif installed

UNIX for Beginners Q & A
1

Hello,
i have installed open-motif -2.3.8_1 X11 Toolkit on freebsd32bit machine.
wanna compile a little script. script is ok. already compiled on other machine (linux)
the message is as follows

   cc -o button button.c -lXm -lXt -lX11
button.c:3:10: fatal error: 'Xm/Xm.h' file not found
#include <Xm/Xm.h> /*Motif include file*/

1 error generated
$

How can this be possible if open-motif is correct installed ?
there are only two other motif packages.

  1. linux-c6-openmotif
  2. linux-c7-motif

Attention : i found another error when compiling another script.
X11/Intrinsic.h NOT FOUND

WBR
Senenmut

2

The first thing to do is to search the filesystem for the file(s) and note the locations (full path) to the files.

Please do this and post the results back.

Thanks.

3

Problem solved.

WBR
SM

4

Hello Sennenmut,

Good that you were able to solve the problem by your own. But after working on few posts in this thread and suddenly declaring that you have solved the problem will not help anyone.

I would like to request you to please do add your solution which helped you fix your problem in this thread do that future users could be benefited too. Cheers and happy learning on this great site.

Thanks,
R. Singh

1 Like
5 
cc  -L/usr/local/lib   -I/usr/local/include  -o button button.c  -lXm -lXt -lX11

UNIX wins. ( not gnu)

6

It is always wise to include your library and include paths when compiling a program in C.

Here is your first (you said not working) attempt:

 cc -o button button.c -lXm -lXt -lX11

Here is your working attempt:

cc  -L/usr/local/lib   -I/usr/local/include  -o button button.c  -lXm -lXt -lX11

The only difference is that you have included your paths, which is standard. If you do not include the paths, how will cc know where to search for include files and libraries?

This is why you should always search your file system when you encounter such a compile-time error and then, as you have done, include the correct paths.

1 Like