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cache.h: eliminate SHA-1 deprecation warnings on Mac OS X 

As of Mac OS X 10.7, Apple deprecated all OpenSSL functions due to
OpenSSL ABI instability, thus leading to build diagnostics such as:

	warning: 'SHA1_Init' is deprecated
	(declared at /usr/include/openssl/sha.h:121)

Silence the warnings by using Apple's CommonCrypto SHA-1 replacement
functions for SHA1_Init(), SHA1_Update(), and SHA1_Final().

COMMON_DIGEST_FOR_OPENSSL is defined to instruct
<CommonCrypto/CommonDigest.h> to provide compatibility macros
associating OpenSSL SHA-1 functions with their CommonCrypto
counterparts.

[es: reworded commit message]

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
David Aguilar 2013-05-19 06:23:35 -04:00 committed by Junio C Hamano
parent 4dcd7732db
commit 61067954ce
1 changed files with 6 additions and 0 deletions
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6
Makefile
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@ -1396,11 +1396,17 @@ ifdef PPC_SHA1
SHA1_HEADER = "ppc/sha1.h"
LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
LIB_H += ppc/sha1.h
else
ifdef APPLE_COMMON_CRYPTO
COMPAT_CFLAGS += -DCOMMON_DIGEST_FOR_OPENSSL
SHA1_HEADER = <CommonCrypto/CommonDigest.h>
else
SHA1_HEADER = <openssl/sha.h>
EXTLIBS += $(LIB_4_CRYPTO)
endif
endif
endif
ifdef NO_PERL_MAKEMAKER
export NO_PERL_MAKEMAKER
endif