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900d17acb9
Provide dummy replacements when a function isnt found. The functions are also searched for in certain libraries, and variables SOCKET_LIBS and NSL_LIBS are set accordingly. One purpose of this is to fix the getifaddrs tests on systems where e.g. the socket calls require special libs for linking. Michael
41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
dnl The following test is roughl taken from the cvs sources.
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dnl
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dnl If we can't find connect, try looking in -lsocket, -lnsl, and -linet.
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dnl The Irix 5 libc.so has connect and gethostbyname, but Irix 5 also has
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dnl libsocket.so which has a bad implementation of gethostbyname (it
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dnl only looks in /etc/hosts), so we only look for -lsocket if we need
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dnl it.
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AC_CHECK_FUNCS(connect)
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if test x"$ac_cv_func_connect" = x"no"; then
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AC_CHECK_LIB_EXT(nsl_s, SOCKET_LIBS, connect)
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AC_CHECK_LIB_EXT(nsl, SOCKET_LIBS, connect)
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AC_CHECK_LIB_EXT(socket, SOCKET_LIBS, connect)
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AC_CHECK_LIB_EXT(inet, SOCKET_LIBS, connect)
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dnl We can't just call AC_CHECK_FUNCS(connect) here,
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dnl because the value has been cached.
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if test x"$ac_cv_lib_ext_nsl_s_connect" = x"yes" ||
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test x"$ac_cv_lib_ext_nsl_connect" = x"yes" ||
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test x"$ac_cv_lib_ext_socket_connect" = x"yes" ||
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test x"$ac_cv_lib_ext_inet_connect" = x"yes"
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then
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AC_DEFINE(HAVE_CONNECT,1,[Whether the system has connect()])
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fi
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fi
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AC_CHECK_FUNCS(gethostbyname)
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if test x"$ac_cv_func_gethostbyname" = x"no"; then
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AC_CHECK_LIB_EXT(nsl_s, NSL_LIBS, gethostbyname)
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AC_CHECK_LIB_EXT(nsl, NSL_LIBS, gethostbyname)
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AC_CHECK_LIB_EXT(socket, NSL_LIBS, gethostbyname)
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dnl We can't just call AC_CHECK_FUNCS(gethostbyname) here,
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dnl because the value has been cached.
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if test x"$ac_cv_lib_ext_nsl_s_gethostbyname" = x"yes" ||
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test x"$ac_cv_lib_ext_nsl_gethostbyname" = x"yes" ||
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test x"$ac_cv_lib_ext_socket_gethostbyname" = x"yes"
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then
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AC_DEFINE(HAVE_GETHOSTBYNAME,1,
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[Whether the system has gethostbyname()])
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fi
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fi
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