fix centos build error

Author: AkashiSN

build-ffmpeg

@@ -475,14 +475,15 @@ if build "libwebp"; then
 	download "https://github.com/webmproject/libwebp/archive/v1.1.0.tar.gz" "libwebp-1.1.0.tar.gz"
 	make_dir build
 	cd build || exit
-	execute cmake -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DENABLE_SHARED=OFF -DENABLE_STATIC=ON ../
+	execute cmake -DCMAKE_INSTALL_PREFIX="${WORKSPACE}" -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_INSTALL_BINDIR=bin -DCMAKE_INSTALL_INCLUDEDIR=include -DENABLE_SHARED=OFF -DENABLE_STATIC=ON ../
 	execute make -j $MJOBS
 	execute make install
 
 	build_done "libwebp"
 fi
 CONFIGURE_OPTIONS+=("--enable-libwebp")
 
+
 ##
 ## other library
 ##
@@ -551,7 +552,6 @@ download "https://ffmpeg.org/releases/ffmpeg-4.3.1.tar.bz2"
 ./configure "${CONFIGURE_OPTIONS[@]}" \
 	--disable-debug \
 	--disable-doc \
-	--disable-ffplay \
 	--disable-shared \
 	--enable-gpl \
 	--enable-nonfree \