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2966452a1b
4783115fd4cccb46a7f8c592b34fa7c094c29410 net: add ifaddrs.h include (fanquake) 879215e665a9f348c8d3fa92701c34065bc86a69 build: check if -lsocket is required with *ifaddrs (fanquake) 87deac66aa747481e6f34fc80599e1e490de3ea0 rand: only try and use freeifaddrs if available (fanquake) Pull request description: Fixes #21485 by linking against `-lsocket` when it's required for using `*ifaddrs` functions. ACKs for top commit: laanwj: Code review ACK 4783115fd4cccb46a7f8c592b34fa7c094c29410 hebasto: ACK 4783115fd4cccb46a7f8c592b34fa7c094c29410, I have reviewed the code and it looks OK, I agree it can be merged. Tree-SHA512: 4542e036e9b029de970eff8a9230fe45d9204bb22313d075f474295d49bdaf1f1cbb36c0c6e2fa8dbbcdba518d8d3a68a6116ce304b82414315f333baf9af0e4
37 lines
855 B
Plaintext
37 lines
855 B
Plaintext
# Illumos/SmartOS requires linking with -lsocket if
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# using getifaddrs & freeifaddrs
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m4_define([_CHECK_SOCKET_testbody], [[
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#include <sys/types.h>
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#include <ifaddrs.h>
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int main() {
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struct ifaddrs *ifaddr;
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getifaddrs(&ifaddr);
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freeifaddrs(ifaddr);
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}
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]])
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AC_DEFUN([CHECK_SOCKET], [
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AC_LANG_PUSH(C++)
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AC_MSG_CHECKING([whether ifaddrs funcs can be used without link library])
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AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_SOCKET_testbody])],[
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AC_MSG_RESULT([yes])
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],[
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AC_MSG_RESULT([no])
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LIBS="$LIBS -lsocket"
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AC_MSG_CHECKING([whether getifaddrs needs -lsocket])
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AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_SOCKET_testbody])],[
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AC_MSG_RESULT([yes])
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],[
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AC_MSG_RESULT([no])
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AC_MSG_FAILURE([cannot figure out how to use getifaddrs])
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])
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])
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AC_LANG_POP
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])
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