https://github.com/libexpat/libexpat/issues/52

fixes /usr/include/sys/random.h:37:22: error: expected ')'
misdetection of random.h feature, already fixed upstream:
https://github.com/libexpat/libexpat/commit/602e6c78ca750c082b72f8cdf4a38839b312959f

diff -ur expat.org/configure expat/configure
--- expat.org/configure	2017-07-12 17:04:34.000000000 +0200
+++ expat/configure	2017-07-12 17:05:59.000000000 +0200
@@ -16341,7 +16341,7 @@
   }
 
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"; then :
 
 
 $as_echo "#define HAVE_GETRANDOM 1" >>confdefs.h
@@ -16386,7 +16386,8 @@
     conftest$ac_exeext conftest.$ac_ext
 
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 
 
 for ac_header in fcntl.h unistd.h
diff -ur expat.org/configure.ac expat/configure.ac
--- expat.org/configure.ac	2017-07-12 17:04:34.000000000 +0200
+++ expat/configure.ac	2017-07-12 17:05:31.000000000 +0200
@@ -130,7 +130,7 @@
 
 
 AC_MSG_CHECKING([for getrandom (Linux 3.17+, glibc 2.25+)])
-AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+AC_LINK_IFELSE([AC_LANG_SOURCE([
   #include <stdlib.h>  /* for NULL */
   #include <sys/random.h>
   int main() {