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authorfanquake <fanquake@gmail.com>2021-03-21 08:41:26 +0800
committerfanquake <fanquake@gmail.com>2021-04-06 17:35:41 +0800
commitf6896dfde73bb37f4f0f0f9bfe9855d4fe9e9fe5 (patch)
treee0844f8a5b10cc0d5e45fed7019bb9af891dad0d
parente99d6d0c7cbdbb23f966e50c045bbd525ba8daf0 (diff)
downloadbitcoin-f6896dfde73bb37f4f0f0f9bfe9855d4fe9e9fe5.tar.xz
build: check if -lsocket is required with *ifaddrs
Github-Pull: #21486 Rebased-From: 879215e665a9f348c8d3fa92701c34065bc86a69
-rw-r--r--build-aux/m4/l_socket.m436
-rw-r--r--configure.ac2
2 files changed, 37 insertions, 1 deletions
diff --git a/build-aux/m4/l_socket.m4 b/build-aux/m4/l_socket.m4
new file mode 100644
index 0000000000..38923a98fc
--- /dev/null
+++ b/build-aux/m4/l_socket.m4
@@ -0,0 +1,36 @@
+# Illumos/SmartOS requires linking with -lsocket if
+# using getifaddrs & freeifaddrs
+
+m4_define([_CHECK_SOCKET_testbody], [[
+ #include <sys/types.h>
+ #include <ifaddrs.h>
+
+ int main() {
+ struct ifaddrs *ifaddr;
+ getifaddrs(&ifaddr);
+ freeifaddrs(ifaddr);
+ }
+]])
+
+AC_DEFUN([CHECK_SOCKET], [
+
+ AC_LANG_PUSH(C++)
+
+ AC_MSG_CHECKING([whether ifaddrs funcs can be used without link library])
+
+ AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_SOCKET_testbody])],[
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_RESULT([no])
+ LIBS="$LIBS -lsocket"
+ AC_MSG_CHECKING([whether getifaddrs needs -lsocket])
+ AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_SOCKET_testbody])],[
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_RESULT([no])
+ AC_MSG_FAILURE([cannot figure out how to use getifaddrs])
+ ])
+ ])
+
+ AC_LANG_POP
+])
diff --git a/configure.ac b/configure.ac
index 0116a662ca..86e57e5d43 100644
--- a/configure.ac
+++ b/configure.ac
@@ -866,7 +866,7 @@ fi
AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h sys/sysctl.h vm/vm_param.h sys/vmmeter.h sys/resources.h])
-AC_CHECK_DECLS([getifaddrs, freeifaddrs],,,
+AC_CHECK_DECLS([getifaddrs, freeifaddrs],[CHECK_SOCKET],,
[#include <sys/types.h>
#include <ifaddrs.h>]
)