The name md5_init is the advertised name, and that's what the C source files should use. But to the linker the symbol is nettle_md5_init, to avoid collisions with other md5 code that you might happen to link with. There's a

#define md5_init nettle_md5_init

So for configure, one should either test for both nettle_md5_init and md5_init, or test for only md5_init and make sure that the testprogram includes nettle/md5.h.

It's similar to gmp, where mpz_foo really is __gmpz_foo, except that I don't think that number of underscores is appropriate for nettle.

/ Niels Möller (vässar rödpennan)

Previous text:

2004-01-16 13:35: Subject: Nettle and nettle_* identifiers

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Regarding a recent checkin:

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• 2004-01-15 17:26:41 (grendel) Pike/7.5/src/post_modules/Nettle/configure.in, (+2/-2) (18 lines)

  nice. nettle 1.7 had md5_init, 1.8 has nettle_md5_init, you can't win.

Isn't there some #define to set to have nettle not prefix its identifiers with nettle_ (if that is what it would take to win)?

/ Johan Sundström (Achtung Liebe!)