libuhttp: don't build examples

Speeds up compilation and potentially fixes it.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/libuhttpd/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libuhttpd
 PKG_VERSION:=3.12.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL=https://github.com/zhaojh329/libuhttpd/releases/download/v$(PKG_VERSION)
@@ -40,6 +40,8 @@ Package/libuhttpd-wolfssl=$(call Package/libuhttpd/Default,wolfssl,+PACKAGE_libu
 Package/libuhttpd-mbedtls=$(call Package/libuhttpd/Default,mbedtls,+PACKAGE_libuhttpd-mbedtls:libmbedtls +PACKAGE_libuhttpd-mbedtls:zlib)
 Package/libuhttpd-nossl=$(call Package/libuhttpd/Default,nossl)
 
+CMAKE_OPTIONS += -DBUILD_EXAMPLE=OFF
+
 ifeq ($(BUILD_VARIANT),openssl)
   CMAKE_OPTIONS += -DUSE_OPENSSL=ON
 else ifeq ($(BUILD_VARIANT),wolfssl)