Exporting environment variables to Makefile shell

Question

I want to do immediate expansion of a shell command within a Makefile, but I want the shell command to have access to the environment variables within the Makefile. If I us

Answer 1

You may try to use Special Built-in Target Name: .EXPORT_ALL_VARIABLES

.EXPORT_ALL_VARIABLES:

MY_VAR = foo

test:
  @echo $$MY_VAR