Determine the correct type to be passed to four of the `getnameinfo' function's arguments, and define those types in `GETNAMEINFO_TYPE_ARG2', `GETNAMEINFO_TYPE_ARG46', and `GETNAMEINFO_TYPE_ARG7'.

recent gcc versions give far too many false positives for this to be valuable

variable declarations.

when looking for the prototype

times, like on my HP-UX 10.20 tests. And then lib/strerror.c badly assumed
the glibc version if the posix define wasn't set (since it _had_ found a
strerror_r).

least it should no longer cause a compiler error. However, it does not have
AI_NUMERICHOST so we cannot getaddrinfo() any numerical addresses with it (we
use that for FTP PORT/EPRT)! So, I modified the configure check that checks if
the getaddrinfo() is working, to use AI_NUMERICHOST since then it'll fail on
AIX 4.3 and it will automatically build with IPv6 support disabled.

to survive without it if not found. AIX 4.3 targetted adjustment.

When cross-compiling, we do some better checking for the NI_WITHSCOPEID option instead of just assuming it is present.

more platforms.

the correct dynamic library names by default, and provides override switches
--with-ldap-lib, --with-lber-lib and --without-lber-lib.  Added
CURL_DISABLE_LDAP to platform-specific config files to disable LDAP
support on those platforms that probably don't have dynamic OpenLDAP
libraries available to avoid compile errors.

build out-of-the-box on BeOS.

work. This is supposed to detect cross-compiling and alert the user, and not
do the POSIX-check for strerror_r() if it already detected a glibc-compatible
strerror_r().

the user.
2 - don't check for POSIX-style if glibc-style is found first

with no prior declaration" since this is a habit we have in the code.

compilers to warn

ones use this too...

added some more debug output to make it easier to detect failure reasons
in the autobuild logs

works. No code actually uses the HAVE_NI_WITHSCOPEID (that a positive test
results in), but this is still only for testing purposes.

1. Try with _THREAD_SAFE instead of _REENTRANT, as AIX seems to require it
   and if _REENTRANT is required we should already have it set since one of
   the previous tests.
2. Added API-detection for what kind of strerror_r() that is provided. The
   POSIX style or the glibc style.

Tor Arntsen provided the necessary feedback these changes are based upon.

on FreeBSD gives us lots of warnings in system headers and I suspect this
option is what causes them!

that were set. For easier debugging/changing of this.

appear because of our home-grown option '%Od' for the curl_off_t output.

compiler!

CURL_CC_DEBUG_OPTS function in acinclude.m4

automake 1.8+ stops complaining!