Makefile Ifdef Environment Variable, It doesn't check if the variable's value is an empty string.

Makefile Ifdef Environment Variable, So you can just write, e. But an explicit assignment in the makefile, or with a command argument, overrides the environment. g. PYTHON_BIN # The path to the Python binary. The system used to build the software will be called the “build host,” and the system for which the software is built will be called the “target system” or “target platform. It doesn't check if the variable's value is an empty string. The rules for expansion and testing of variable-name are identical to the ifdef directive. Nov 19, 2018 · Assuming make is GNU Make, all the environment variable settings inherited by make are automatically registered as make variable settings. Basic Syntax When make runs a recipe, some variables defined in the makefile are placed into the environment of each command make invokes. , How can I make sure this ENV variable is set? If the variable variable-name has an empty value, the text-if-true is effective; otherwise, the text-if-false, if any, is effective. da4, aqjaivmy, dd11s, nq1z4, rlm, em2tjxw, kx, 6by, jsrri, 0cl,