config.mak.uname: add hint on uname_R for MacOS X
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>
diff --git a/config.mak.uname b/config.mak.uname
index f8e12c9..fde196f 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -86,6 +86,10 @@
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
