Remove macro hacks for internal vs. external functions. Part 2 and last.
* src/visibility.h: Remove remaining define/undef hacks for symbol visibility. Add macros to detect the use of the public functions. Change all affected functions by replacing them by the x-macros. * src/g10lib.h: Add internal prototypes. (xtrymalloc, xtrycalloc, xtrymalloc_secure, xtrycalloc_secure) (xtryrealloc, xtrystrdup, xmalloc, xcalloc, xmalloc_secure) (xcalloc_secure, xrealloc, xstrdup, xfree): New macros.
The use of xmalloc/xtrymalloc/xfree is a more common pattern than the
gcry_free etc. functions. Those functions behave like those defined
by C and thus for better readability we use these macros and not
the underscore prefixed functions.
- Signed-off-by: Werner Koch <wk@gnupg.org>