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authorÆvar Arnfjörð Bjarmason <avarab@gmail.com>2022-03-03 17:04:17 +0100
committerJunio C Hamano <gitster@pobox.com>2022-03-03 14:14:55 -0800
commitfd15f8a5fa874bd25b25b3322407d65ca189e632 (patch)
treee79306632efe55cc7638cad60bb51199bae3c705 /shared.mak
parentdad9cd7d518375799413b5a3af179f4cd95cfbe4 (diff)
Makefile: move $(comma), $(empty) and $(space) to shared.mak
Move these variables over to the shared.mak, we'll make use of them in
a subsequent commit.

Note that there's reason for these to be "simply expanded variables",
i.e. to use ":=" assignments instead of lazily expanded "="
assignments. We could use "=", but let's leave this as-is for now for
ease of review.

See 425ca6710b2 (Makefile: allow combining UBSan with other
sanitizers, 2017-07-15) for the commit that introduced these.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'shared.mak')
-rw-r--r--shared.mak8
1 files changed, 8 insertions, 0 deletions
diff --git a/shared.mak b/shared.mak
index 1dda948df0..934bf42893 100644
--- a/shared.mak
+++ b/shared.mak
@@ -23,3 +23,11 @@
 #
 #    info make --index-search=.DELETE_ON_ERROR
 .DELETE_ON_ERROR:
+
+### Global variables
+
+## comma, empty, space: handy variables as these tokens are either
+## special or can be hard to spot among other Makefile syntax.
+comma := ,
+empty :=
+space := $(empty) $(empty)