socket: ai_addrlen is socklen_t

* ext/socket/raddrinfo.c (rsock_make_hostent): ai_addrlen is not
  size_t but socklen_t.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39251 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mkmf.rb: fail if cross compiling

* lib/mkmf.rb (MakeMakefile#try_run): bail out explicitly if cross
  compiling, because it cannot work of course.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39252 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
win32.c: style

* win32/win32.c (rb_w32_fd_is_text): adjust style.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39253 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/sockport.h (SET_SIN_LEN): defined for strict-aliasing
  rule.
  (INIT_SOCKADDR_IN): ditto.

* ext/socket/raddrinfo.c (make_inetaddr): use INIT_SOCKADDR_IN.
  (addrinfo_ipv6_to_ipv4): ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39254 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix CFLAGS and CXXFLAGS in RbConfig::CONFIG on FreeBSD and NetBSD/amd64.

* configure.in: Fix a bug introduced in r38342 that the cflagspat
  substitution is messed up by the way CFLAGS and optflags are
  modified, which affected FreeBSD and NetBSD/amd64 when
  configured to use libexecinfo.  This bug resulted in CFLAGS and
  CXXFLAGS in RbConfig::CONFIG having warnflags expanded in them,
  forcing third-party C/C++ extensions to follow what warnflags
  demands, like ANSI/ISO-C90 conformance.  ref [Bug #7101]




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39255 b2dd03c8-39d4-4d8f-98ff-823fe69b080e