diff --git a/configure b/configure
index 0ac783d7479..780e32d9ca8 100755
--- a/configure
+++ b/configure
@@ -17760,6 +17760,7 @@ for ac_func in \
 	setprogname \
 	sigprocmask \
 	symlink \
+	sysinfo \
 	tcdrain \
 	thr_kill2
 
diff --git a/configure.ac b/configure.ac
index ed5116b17c9..9cf059e1edc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2160,6 +2160,7 @@ AC_CHECK_FUNCS(\
 	setprogname \
 	sigprocmask \
 	symlink \
+	sysinfo \
 	tcdrain \
 	thr_kill2
 )
diff --git a/dlls/ntdll/unix/virtual.c b/dlls/ntdll/unix/virtual.c
index e2956c1ac97..e8ccf54791d 100644
--- a/dlls/ntdll/unix/virtual.c
+++ b/dlls/ntdll/unix/virtual.c
@@ -2451,7 +2451,8 @@ ULONG_PTR get_system_affinity_mask(void)
  */
 void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info )
 {
-#if defined(HAVE_STRUCT_SYSINFO_TOTALRAM) && defined(HAVE_STRUCT_SYSINFO_MEM_UNIT)
+#if defined(HAVE_SYSINFO) \
+    && defined(HAVE_STRUCT_SYSINFO_TOTALRAM) && defined(HAVE_STRUCT_SYSINFO_MEM_UNIT)
     struct sysinfo sinfo;
 
     if (!sysinfo(&sinfo))
diff --git a/include/config.h.in b/include/config.h.in
index c131f8f22bc..2dcf318e4ec 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -891,6 +891,9 @@
 /* Define to 1 if you have the <syscall.h> header file. */
 #undef HAVE_SYSCALL_H
 
+/* Define to 1 if you have the `sysinfo' function. */
+#undef HAVE_SYSINFO
+
 /* Define to 1 if you have the
    <SystemConfiguration/SCDynamicStoreCopyDHCPInfo.h> header file. */
 #undef HAVE_SYSTEMCONFIGURATION_SCDYNAMICSTORECOPYDHCPINFO_H