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config.mak.uname: add hint on uname_R for MacOS X

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I always have to scratch my head every time I see this cryptic
pattern "[15678]\."; leave a short note to remind the maintainer
and the reviewers.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2014-08-15 10:02:46 -07:00
parent 9c7a0beee0
commit 9eeff2f681
1 changed files with 4 additions and 0 deletions
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config.mak.uname
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@ -86,6 +86,10 @@ ifeq ($(uname_S),Darwin)
NEEDS_CRYPTO_WITH_SSL = YesPlease
NEEDS_SSL_WITH_CRYPTO = YesPlease
NEEDS_LIBICONV = YesPlease
# Note: $(uname_R) gives us the underlying Darwin version.
# - MacOS 10.0.* and MacOS 10.1.0 = Darwin 1.*
# - MacOS 10.x.* = Darwin (x+4).* for (1 <= x)
# i.e. "begins with [15678] and a dot" means "10.4.* or older".
ifeq ($(shell expr "$(uname_R)" : '[15678]\.'),2)
OLD_ICONV = UnfortunatelyYes
NO_APPLE_COMMON_CRYPTO = YesPlease