diff options
| -rw-r--r-- | ares/configure.ac | 123 |
1 files changed, 108 insertions, 15 deletions
diff --git a/ares/configure.ac b/ares/configure.ac index 989dee2ad..118a1dea3 100644 --- a/ares/configure.ac +++ b/ares/configure.ac @@ -16,10 +16,6 @@ solaris*) ;; esac -AC_SEARCH_LIBS(gethostbyname, nsl) -AC_SEARCH_LIBS(socket, socket) - -dnl check for cygwin stuff AC_LIBTOOL_WIN32_DLL dnl ************************************************************ @@ -81,17 +77,114 @@ esac AC_MSG_RESULT($need_no_undefined) AM_CONDITIONAL(NO_UNDEFINED, test x$need_no_undefined = xyes) -AC_MSG_CHECKING([if we need ws2_32 lib]) -case $host in - *-*-mingw* | *-*-pw32*) - need_lib_ws2_32=yes - LIBS="$LIBS -lws2_32" - ;; - *) - need_lib_ws2_32=no - ;; -esac -AC_MSG_RESULT($need_lib_ws2_32) +dnl ********************************************************************** +dnl Checks for libraries. +dnl ********************************************************************** + +dnl gethostbyname without lib or in the nsl lib? +AC_CHECK_FUNC(gethostbyname, + [HAVE_GETHOSTBYNAME="1" + ], + [ AC_CHECK_LIB(nsl, gethostbyname, + [HAVE_GETHOSTBYNAME="1" + LIBS="$LIBS -lnsl" + ]) + ]) + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl gethostbyname in the socket lib? + AC_CHECK_LIB(socket, gethostbyname, + [HAVE_GETHOSTBYNAME="1" + LIBS="$LIBS -lsocket" + ]) +fi + +dnl At least one system has been identified to require BOTH nsl and socket +dnl libs at the same time to link properly. +if test "$HAVE_GETHOSTBYNAME" != "1" +then + AC_MSG_CHECKING([for gethostbyname with both nsl and socket libs]) + my_ac_save_LIBS=$LIBS + LIBS="-lnsl -lsocket $LIBS" + AC_TRY_LINK( , + [gethostbyname();], + [ dnl found it! + HAVE_GETHOSTBYNAME="1" + AC_MSG_RESULT([yes])], + [ dnl failed! + AC_MSG_RESULT([no]) + dnl restore LIBS + LIBS=$my_ac_save_LIBS] + ) +fi + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl This is for Msys/Mingw + AC_MSG_CHECKING([for gethostbyname in ws2_32]) + my_ac_save_LIBS=$LIBS + LIBS="-lws2_32 $LIBS" + AC_TRY_LINK([#include <winsock2.h>], + [gethostbyname("www.dummysite.com");], + [ dnl worked! + ws2="yes" + AC_MSG_RESULT([yes]) + HAVE_GETHOSTBYNAME="1"], + [ dnl failed, restore LIBS + LIBS=$my_ac_save_LIBS + AC_MSG_RESULT(no)] + ) +fi + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl This is for eCos with a stubbed DNS implementation + AC_MSG_CHECKING([for gethostbyname for eCos]) + AC_TRY_LINK([ +#include <stdio.h> +#include <netdb.h>], + [gethostbyname("www.dummysite.com");], + [ dnl worked! + AC_MSG_RESULT([yes]) + HAVE_GETHOSTBYNAME="1"], + AC_MSG_RESULT(no) + ) +fi + +if test "$HAVE_GETHOSTBYNAME" != "1" +then + dnl gethostbyname in the net lib - for BeOS + AC_CHECK_LIB(net, gethostbyname, + [HAVE_GETHOSTBYNAME="1" + LIBS="$LIBS -lnet" + ]) +fi + + +if test "$HAVE_GETHOSTBYNAME" = "1"; then + AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [If you have gethostbyname]) +else + AC_MSG_ERROR([couldn't find libraries for gethostbyname()]) +fi + +AC_MSG_CHECKING([whether to use libgcc]) +AC_ARG_ENABLE(libgcc, +AC_HELP_STRING([--enable-libgcc],[use libgcc when linking]), +[ case "$enableval" in + yes) + LIBS="$LIBS -lgcc" + AC_MSG_RESULT(yes) + ;; + *) AC_MSG_RESULT(no) + ;; + esac ], + AC_MSG_RESULT(no) +) + +dnl ********************************************************************** +dnl Back to "normal" configuring +dnl ********************************************************************** dnl Checks for header files. AC_HEADER_STDC |