oui-httpd download.c static urldecode conflicting types with libuhttpd3.9

[topeqin]

Environment: (arm, openwrt 19.07)

Description:

v19.07/build_dir/target-arm-buildroot-linux-gnueabi_glibc/oui-httpd-git-2021.028.43331-1ff4a9b/download.c:30:13: error: conflicting types for 'urldecode'
30 | static bool urldecode(char *buf)
| ^~~~~~~~~
In file included from /home/gqin/openwrt/v19.07/staging_dir/target-arm-buildroot-linux-gnueabi_glibc/usr/include/uhttpd/uhttpd.h:35

[topeqin]

Hello jianhui

I meet conflict static local funcion urldecode in download.c with openwrt feeds package libuhttpd whose version is 3.9
dl url https://github.com/zhaojh329/libuhttpd
if something steps miss then result this issue. if yes, please comments. I just add one fix in my local first.

Thanks,
Qin Guang