--- libmicrohttpd-0.9.41/configure.ac.orig	2015-04-29 11:33:15.000000000 +0200
+++ libmicrohttpd-0.9.41/configure.ac	2015-05-09 07:21:31.291508981 +0200
@@ -837,7 +837,7 @@
 AS_IF([[test "x$enable_https" = "xyes" && test "x$have_gnutls_pkgcfg" = "xyes" ]],
  [ # remove GnuTLS from private libs in .pc file as it defined in Requires.private
    MHD_REQ_PRIVATE='gnutls'
-   MHD_LIBDEPS_PKGCFG="${MHD_LIBDEPS//$GNUTLS_LIBS/}"
+   MHD_LIBDEPS_PKGCFG="$(echo "$MHD_LIBDEPS" | sed -e "s/$GNUTLS_LIBS//")"
  ],
  [
    MHD_REQ_PRIVATE=''