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

From: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date: Apr 22, 2022, 09:53 UTC
Message-ID: <patch-3.5-d559e5212bc-20220422T094624Z-avarab@gmail.com>
In-Reply-To: <cover-0.5-00000000000-20220422T094624Z-avarab@gmail.com>

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(-)

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.

-- 
2.36.0.879.g56a83971f3f