Collaborative Computational Project Number 14
for Single Crystal and Powder Diffraction
CCP14
Compiling Gnu Flex
The CCP14 Homepage is at http://www.ccp14.ac.uk
Flex is a lex replacement. Though before this will compile, it will require YACC, or GNU Bison to
be present.
The present versions are quite easy to compile.
The version of GNU Flex used at the time of writing was Flex 2.5.4a (18th November 1999) This was
compiled on an SGI O2 running IRIX 6.5.6 and an HP Workstation running HPUX 10.
The main GNU website is at http://www.gnu.org.
There are a variety of mirrors around the place including a
CCP14 auto-mirror at http://gnu.ccp14.ac.uk
Download page is at http://www.gnu.org/order/ftp.html.
There are a variety of mirrors around the place including a
CCP14 auto-mirror at http://gnu.ccp14.ac.uk/order/ftp.html
You need:
- Latest Flex distribution (flex-2.5.4a or greater) (18th November 1999)
If you use a later version than the above, check the INSTALLATION instructions
as they may have differed to what is given below.
Some of the Eurocentric FTP sites you can download the source code:
To extract the distribution files:
- Type: gzip -d < flex-2.5.4a.tar.gz | tar xvof -
This creates a flex-2.5.4a subdirectory where the files are ready to configure and compile.
- If you are in the mood normally read the INSTALL or README files and try to figure things out.
- Run ./configure (it should detect your system and be happy)
- Type make to compile things up
- Type make install to install the files into the correct /usr/local area on your system (if you have the
permissions).