Environment variables

The configuration behavior can be controlled by setting particular environment variables.

The following variables should always be defined. (The examples are in Bourne shell syntax.)

CROSS_COMPILE

This is sometimes used by configure scripts to detect a cross development environment. For example:

export CROSS_COMPILE=1

It variable is not needed by configure scripts generated by autoconf 2.5 or later.

CC and CXX

These are used to define the C and C++ compiler commands.

For the ST40 cross development environment they are usually sh4-linux-gcc and sh4-linux-g++ respectively. For example:

export CC="sh4-linux-gcc"
export CXX="sh4-linux-g++"

Other environment variables may be needed, depending on the particular package being built.

STLinux