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[3/5] Makefile: rephrase the discussion of *_SHA1 knobs

Message ID patch-3.5-d559e5212bc-20220422T094624Z-avarab@gmail.com (mailing list archive)
State New
Headers show
Series core: update our SHA-1 docs, use sha1collisiondetection on OSX too | expand

Commit Message

Ævar Arnfjörð Bjarmason April 22, 2022, 9:53 a.m. UTC
In the preceding commit the discussion of the *_SHA1 knobs was left
as-is to benefit from a smaller diff, but since we're changing these
let's use the same phrasing we use for most other knobs. E.g. "define
X", not "define X environment variable", and get rid of the "when
running make to link with" entirely.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
 Makefile | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
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diff --git a/Makefile b/Makefile
index 12bb9edd70a..d317c6aba06 100644
--- a/Makefile
+++ b/Makefile
@@ -506,14 +506,14 @@  include shared.mak
 # To use them you must define NO_DC_SHA1 and one of the *_SHA1
 # variables below:
-# Define BLK_SHA1 environment variable to make use of the bundled
-# optimized C SHA1 routine.
+# Define BLK_SHA1 to make use of optimized C SHA-1 routines bundled
+# with git (in the block-sha1/ directory).
-# Define OPENSSL_SHA1 environment variable when running make to link
-# with the SHA1 routine from openssl library.
+# Define OPENSSL_SHA1 to link to the the SHA-1 routines from
+# the OpenSSL library.
-# Define PPC_SHA1 environment variable when running make to make use of
-# a bundled SHA1 routine optimized for PowerPC.
+# Define PPC_SHA1 to make use of optimized (in assembly)
+# PowerPC SHA-1 routines.
 # Define APPLE_SHA1 to use Apple's CommonCrypto SHA-1 routines on
 # Darwin/Mac OS X.