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Print nice error message when python is not installed 

If user runs `make help` on a system without python, we should print a
decent message.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
Daniel J Walsh 2020-09-21 16:30:54 -04:00
parent dc5cc43563
commit 63ba4ff871
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1 changed files with 5 additions and 0 deletions
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5
Makefile
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@ -135,8 +135,13 @@ export PRINT_HELP_PYSCRIPT
err_if_empty = $(if $(strip $($(1))),$(strip $($(1))),$(error Required variable $(1) value is undefined, whitespace, or empty)) err_if_empty = $(if $(strip $($(1))),$(strip $($(1))),$(error Required variable $(1) value is undefined, whitespace, or empty))
.PHONY: help .PHONY: help
ifneq (, ${PYTHON})
help: help:
@$(PYTHON) -c "$$PRINT_HELP_PYSCRIPT" < $(MAKEFILE_LIST) @$(PYTHON) -c "$$PRINT_HELP_PYSCRIPT" < $(MAKEFILE_LIST)
else
help:
$(error python required for 'make help', executable not found)
endif
.gopathok: .gopathok:
ifeq ("$(wildcard $(GOPKGDIR))","") ifeq ("$(wildcard $(GOPKGDIR))","")