(UTF-8 BOM format produces compilation errors) Solution

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The following error occurs when I recently used an older arm-Linux-GCC 4.1.2 to compile a newer Linux kernel:

Xxx. C: 1: Error: The program has a free '\ 357'
XXX: 1: Error: The program has a free '\ 273'
Xxx. C: 1: Error: The program has a free '\ 277'

This is because the file is stored in the form of a UTF-8 Bom, And the compiler used does not support this format.

Run the following command to check whether the XXX. c file is in UTF-8 BOM format:

$ Cat XXX. c | HD-N 10

The output is as follows:

00000000 ef bb bf 2f 2a 0a 20 2a 20 53 |.../*. * s |
0000000a

The first three codes of the output are ef bb bf, indicating that the file is in UTF-8 BOM format.

How to remove the UTF-8 BOM format?

Solution:

Download the bomstrip tool,

Download Page: http://www.ueber.net/who/mjl/projects/bomstrip/

Latest bomstrip-9: bomstrip-9.tgz

Installation and usage (in ubuntu11.04 ):,

Sudo apt-Get install ocaml

Tar zxvf bomstrip-9.tgz

CD bomstrip-9/

Sudo CP bomstrip. ocaml/usr/bin/

Sudo chmod 777/usr/bin/bomstrip. ocaml

Usage:

Ocaml/usr/bin/bomstrip. ocaml <input_file.c> output_file.c

Input_file.c is the original UTF-8 BOM format file, output_file.c is to remove the UTF-8 BOM format file.

Other Instructions:

Ocaml isOcaml language parser;

The bomstrip. ocaml file isThe bomstrip-9 is written in the ocaml language, among which there are other language scripts, I did not test one by one;

Bomstrip usage, how to use bomstrip, UTF-8 BOM error Solution