already fixed upstream, but 0.9.50 contains this bug
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
--- /dev/null
+Index: libmicrohttpd-0.9.50/src/microhttpd/mhd_str.c
+===================================================================
+--- libmicrohttpd-0.9.50.orig/src/microhttpd/mhd_str.c 2016-05-02 14:22:44.000000000 +0200
++++ libmicrohttpd-0.9.50/src/microhttpd/mhd_str.c 2016-07-15 11:06:39.896282700 +0200
+@@ -271,7 +271,8 @@
+ int
+ MHD_str_equal_caseless_n_ (const char * const str1, const char * const str2, size_t maxlen)
+ {
+- for (size_t i = 0; i < maxlen; ++i)
++ size_t i;
++ for (i = 0; i < maxlen; ++i)
+ {
+ const char c1 = str1[i];
+ const char c2 = str2[i];