Re: [PATCH v6 1/2] cache.h: eliminate SHA-1 deprecation warnings on Mac OS X

2013-05-15 Thread David Aguilar
On Wed, May 15, 2013 at 5:36 PM, Junio C Hamano  wrote:
> David Aguilar  writes:
>
>> Mac OS X 10.8 Mountain Lion prints warnings when building git:
>>
>>   warning: 'SHA1_Init' is deprecated
>>   (declared at /usr/include/openssl/sha.h:121)
>>
>> Silence the warnings by using the CommonCrytpo SHA-1
>> functions for SHA1_Init(), SHA1_Update(), and SHA1_Final().
>>
>> Add a NO_COMMON_DIGEST_FOR_OPENSSL option to the Makefile to allow
>> users to opt out of using this library.  When defined, Git will
>> use OpenSSL instead.
>>
>> COMMON_DIGEST_FOR_OPENSSL is defined to enable the OpenSSL
>> compatibility macros in CommonDigest.h.
>
> This symbol will also cover not just SHA but also HMAC, would it
> make more sense to call it COMMON_CRYPTO_FOR_OPENSSL?  After all,
> that is what Apple calls this library, no?

They call it COMMON_DIGEST_FOR_OPENSSL.  weirdos,
but I guess they mean it's for the digest functions.

Thanks for catching the commit message typo.

>>
>> Helped-by: Eric Sunshine 
>> Helped-by: Torsten Bögershausen 
>> Signed-off-by: David Aguilar 
>> ---
>> Changes since last time:
>>
>> Name the Makefile variable after the #define for consistency.
>>
>>  Makefile | 13 +
>>  1 file changed, 13 insertions(+)
>>
>> diff --git a/Makefile b/Makefile
>> index f698c1a..b0eb949 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -137,6 +137,10 @@ all::
>>  # specify your own (or DarwinPort's) include directories and
>>  # library directories by defining CFLAGS and LDFLAGS appropriately.
>>  #
>> +# Define NO_COMMON_DIGEST_FOR_OPENSSL if you are building on Darwin/Mac OS X
>> +# and do not want to use Apple's CommonCrypto library.  This allows you to
>> +# provide your own OpenSSL library, for example from MacPorts.
>> +#
>>  # Define BLK_SHA1 environment variable to make use of the bundled
>>  # optimized C SHA1 routine.
>>  #
>> @@ -1054,6 +1058,9 @@ ifeq ($(uname_S),Darwin)
>>   BASIC_LDFLAGS += -L/opt/local/lib
>>   endif
>>   endif
>> + ifndef NO_COMMON_DIGEST_FOR_OPENSSL
>> + COMMON_DIGEST_FOR_OPENSSL = YesPlease
>> + endif
>>   NO_REGEX = YesPlease
>>   PTHREAD_LIBS =
>>  endif
>> @@ -1389,10 +1396,16 @@ ifdef PPC_SHA1
>>   LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
>>   LIB_H += ppc/sha1.h
>>  else
>> +ifdef COMMON_DIGEST_FOR_OPENSSL
>> + BASIC_CFLAGS += -DCOMMON_DIGEST_FOR_OPENSSL
>> + SHA1_HEADER = 
>> +else
>>   SHA1_HEADER = 
>>   EXTLIBS += $(LIB_4_CRYPTO)
>>  endif
>>  endif
>> +endif
>> +
>>  ifdef NO_PERL_MAKEMAKER
>>   export NO_PERL_MAKEMAKER
>>  endif



--
David
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Re: [PATCH v6 1/2] cache.h: eliminate SHA-1 deprecation warnings on Mac OS X

2013-05-15 Thread Junio C Hamano
David Aguilar  writes:

> Mac OS X 10.8 Mountain Lion prints warnings when building git:
>
>   warning: 'SHA1_Init' is deprecated
>   (declared at /usr/include/openssl/sha.h:121)
>
> Silence the warnings by using the CommonCrytpo SHA-1
> functions for SHA1_Init(), SHA1_Update(), and SHA1_Final().
>
> Add a NO_COMMON_DIGEST_FOR_OPENSSL option to the Makefile to allow
> users to opt out of using this library.  When defined, Git will
> use OpenSSL instead.
>
> COMMON_DIGEST_FOR_OPENSSL is defined to enable the OpenSSL
> compatibility macros in CommonDigest.h.

This symbol will also cover not just SHA but also HMAC, would it
make more sense to call it COMMON_CRYPTO_FOR_OPENSSL?  After all,
that is what Apple calls this library, no?


>
> Helped-by: Eric Sunshine 
> Helped-by: Torsten Bögershausen 
> Signed-off-by: David Aguilar 
> ---
> Changes since last time:
>
> Name the Makefile variable after the #define for consistency.
>
>  Makefile | 13 +
>  1 file changed, 13 insertions(+)
>
> diff --git a/Makefile b/Makefile
> index f698c1a..b0eb949 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -137,6 +137,10 @@ all::
>  # specify your own (or DarwinPort's) include directories and
>  # library directories by defining CFLAGS and LDFLAGS appropriately.
>  #
> +# Define NO_COMMON_DIGEST_FOR_OPENSSL if you are building on Darwin/Mac OS X
> +# and do not want to use Apple's CommonCrypto library.  This allows you to
> +# provide your own OpenSSL library, for example from MacPorts.
> +#
>  # Define BLK_SHA1 environment variable to make use of the bundled
>  # optimized C SHA1 routine.
>  #
> @@ -1054,6 +1058,9 @@ ifeq ($(uname_S),Darwin)
>   BASIC_LDFLAGS += -L/opt/local/lib
>   endif
>   endif
> + ifndef NO_COMMON_DIGEST_FOR_OPENSSL
> + COMMON_DIGEST_FOR_OPENSSL = YesPlease
> + endif
>   NO_REGEX = YesPlease
>   PTHREAD_LIBS =
>  endif
> @@ -1389,10 +1396,16 @@ ifdef PPC_SHA1
>   LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
>   LIB_H += ppc/sha1.h
>  else
> +ifdef COMMON_DIGEST_FOR_OPENSSL
> + BASIC_CFLAGS += -DCOMMON_DIGEST_FOR_OPENSSL
> + SHA1_HEADER = 
> +else
>   SHA1_HEADER = 
>   EXTLIBS += $(LIB_4_CRYPTO)
>  endif
>  endif
> +endif
> +
>  ifdef NO_PERL_MAKEMAKER
>   export NO_PERL_MAKEMAKER
>  endif
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