m4/pdns_check_os.m4

   1 AC_DEFUN([PDNS_CHECK_OS],[
   2   THREADFLAGS=""
   3
   4   case "$host_os" in
   5   solaris2.1*)
   6     LIBS="-lposix4 -lpthread $LIBS"
   7     CXXFLAGS="-D_REENTRANT $CXXFLAGS"
   8     have_solaris="yes"
   9     ;;
  10   solaris2.8 | solaris2.9 )
  11     AC_DEFINE(NEED_POSIX_TYPEDEF,,[If POSIX typedefs need to be defined])
  12     AC_DEFINE(NEED_INET_NTOP_PROTO,,[If your OS is so broken that it needs an additional prototype])
  13     LIBS="-lposix4 -lpthread $LIBS"
  14     CXXFLAGS="-D_REENTRANT $CXXFLAGS"
  15     have_solaris="yes"
  16     ;;
  17   linux*)
  18     THREADFLAGS="-pthread"
  19     have_linux="yes"
  20     ;;
  21   darwin*)
  22     CXXFLAGS="-D__APPLE_USE_RFC_3542 -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE $CXXFLAGS"
  23     ;;
  24   freebsd*)
  25     THREADFLAGS="-pthread"
  26     have_freebsd="yes"
  27     ;;
  28   *)
  29     LDFLAGS="-pthread $LDFLAGS"
  30     CXXFLAGS="-pthread $CXXFLAGS"
  31     ;;
  32   esac
  33
  34   AM_CONDITIONAL([HAVE_FREEBSD], [test "x$have_freebsd" = "xyes"])
  35   AM_CONDITIONAL([HAVE_LINUX], [test "x$have_linux" = "xyes"])
  36   AM_CONDITIONAL([HAVE_SOLARIS], [test "x$have_solaris" = "xyes"])
  37
  38   case "$host" in
  39   mips* | powerpc-* )
  40     AC_MSG_CHECKING([whether the linker accepts -latomic])
  41     LDFLAGS="-latomic $LDFLAGS"
  42     AC_LINK_IFELSE([m4_default([],[AC_LANG_PROGRAM()])],
  43       [AC_MSG_RESULT([yes])],
  44       [AC_MSG_ERROR([Unable to link against libatomic, cannot continue])]
  45     )
  46     ;;
  47   esac
  48
  49   AC_SUBST(THREADFLAGS)
  50   AC_SUBST([DYNLINKFLAGS], [-export-dynamic])
  51 ])