bug in src/gcrypt.h

[Philip Brown]

There is a problem with src/gcrypt.h, in version 1.1.43

config.h actually checks for "inline". But gcrypt.h totally
ignores this, and hardcodes use of __inline__

This only works with gcc. It breaks other compilers.

[but if you simply replace "__inline__" with "inline", it works 
 with the compiler *I* use, at least]


Please make use of autoconf, and have a gcrypt.h.in or something