--- configure.orig	2018-02-26 14:47:53 UTC
+++ configure
@@ -9027,9 +9027,6 @@ case "${host_os}" in
     ;;
   freebsd*)
     SYS=freebsd
-    CFLAGS="${CFLAGS} -pthread"
-    CPPFLAGS="${CPPFLAGS} -I/usr/local/include"
-    LDFLAGS="${LDFLAGS} -L/usr/local/lib"
     ac_cv_ld_z_defs=no
     ;;
   openbsd*)
@@ -25572,7 +25569,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_
 _Thread_local int foo = 0;
                    int main() {}
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
@@ -27072,7 +27069,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"; then :
 
       ac_cv_c_visibility_hidden=yes