FFmpeg Centos Compile Error – caused by libwebp (error: implicit declaration of function ‘libwebp_error_to_averror’)

I’m trying to compile FFmpeg on Centos 7.9. I followed the official instructions: https://trac.ffmpeg.org/wiki/CompilationGuide/Centos

I need support for WebP images, so I installed libwebp and libwebp-devel via YUM, and used the option --enable-libwebp.

But at the ffmepg "make" stage, the following error is returned:

CC      libavcodec/libwebpenc_common.o
libavcodec/libwebpenc_common.c: In function ‘ff_libwebp_get_frame’:
libavcodec/libwebpenc_common.c:283:17: error: implicit declaration of function ‘libwebp_error_to_averror’ [-Werror=implicit-function-declaration]
                 ret = libwebp_error_to_averror(pic->error_code);
                 ^
cc1: some warnings being treated as errors
make: *** [libavcodec/libwebpenc_common.o] Error 1

Does anyone know why this error is occuring and how it can be corrected?

I’ve tried compiling without using --enable-libwebp and it works fine.