Date: 2003-05-05

Description: Mistakenly redefines __bswap_16 instead of 
__bswap_32 in /usr/include/bits/byteswap.h

Affects: glibc-devel-2.2.5 that is shipped with 
Red Hat Linux 8.0.

Summary: This a fix that allows to install MPICH and 
LAM/MPI using Intel Compilers.


Symptoms: You get the error " undefined references to 
`__bswap_32' follow" when one try to compile 
MPICH or LAM/MPI using Intel Compilers.

To find the version of glic-devel package in 
Red Hat, 
run the command

rpm -q glibc-devel.

If the version is 2.2.5, then you may want to do 
the following:

1) su as root

2) change directory to /usr/include/bits:

    # cd /usr/include/bits

3) Make a backup copy of the file byteswap.h

   # cp byteswap.h byteswap.h.bak

4) Open the file byteswap.h with an editor.

5) go to line number 84.

6) replace the line:

# define __bswap_16(x) \

with the line

# define __bswap_32(x) \

(i.e., change 16 to 32)