Do PGAC_FUNC_GETPWUID_R_5ARG and PGAC_FUNC_STRERROR_R_INT tests with the

same thread flags that will be used to compile thread.c.  Add comment to
make sure no one breaks it.

configure

@@ -13697,9 +13697,8 @@ _ACEOF
 fi
 done
 
-CFLAGS="$_CFLAGS"
-LIBS="$_LIBS"
 
+# Do test here with thread flags
 echo "$as_me:$LINENO: checking whether getpwuid_r takes a fifth argument" >&5
 echo $ECHO_N "checking whether getpwuid_r takes a fifth argument... $ECHO_C" >&6
 if test "${pgac_func_getpwuid_r_5arg+set}" = set; then
@@ -13813,6 +13812,9 @@ _ACEOF
 fi
 
 
+CFLAGS="$_CFLAGS"
+LIBS="$_LIBS"
+
 else
 # do not use values from template file
 PTHREAD_CFLAGS=