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make: Add variable definitions for comma and space

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This commit is contained in:
Koen Zandberg 2020-10-09 11:46:49 +02:00
parent b11acf1940
commit 8e0ac2aeab
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1 changed files with 4 additions and 0 deletions
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4
makefiles/utils/variables.mk
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@ -1,6 +1,10 @@
# Utilities to set variables and environment for targets
# The variables defined here cover edge cases in make string handling.
# These functions should help replacing immediate evaluation and global 'export'
comma := ,
blank :=
space := $(blank) $(blank)
# Evaluate a deferred variable only once on its first usage
# Uses after that will be as if it was an immediate evaluation