RESOLV: Remove obsolete in-tree implementation of SRV and TXT parsing SSSD contained several backwards-compatible definitions of SRV and TXT APIs as well as structures that carry TTL data. These were intended for RHEL-5 and older releases. Since we don't support those upstream, it's better to remove the code -- it has drifted apart from upstream anyway. Reviewed-by: Pavel Březina <pbrezina@redhat.com>

build: Remove substitution of *_OBJ variables Remove substitution of *_OBJ variables (e.g. POPT_OBJ or PCRE_OBJ) from configure scripts as they don't seem to be set or used by anything. Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>

AUTOTOOLS: Use pkg-config to detect libraries. We used pkg-config only as a fallback if header files was not found, but detection of library failed in case of available header file and linking problem (missing -Ldir). This patch prefers pkg-config.

Provide TTL structure names for c-ares < 1.7 https://fedorahosted.org/sssd/ticket/898 In c-ares 1.7, the upstream renamed the addrttl/addr6ttl structures to ares_addrttl/ares_addr6ttl so they are in the ares_ namespace. Because they are committed to stable ABI, the contents are the same, just the name changed -- so it is safe to just #define the new name for older c-ares version in case the new one is not detected in configure time.

Rename server/ directory to src/ Also update BUILD.txt