checking for libopus... yes
ffmpeg/configure --disable-programs --disable-doc --disable-postproc --disable-avfilter --disable-network --disable-static --enable-shared --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libvorbis --enable-libtheora --enable-librsvg --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvpx --enable-libopus --enable-version3 --build-suffix=-cve --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --incdir=${prefix}/include/cinelerra-cve
ERROR: librsvg-2.0 not found using pkg-config

$ pacman -Ql librsvg
librsvg /usr/
librsvg /usr/bin/
librsvg /usr/bin/rsvg-convert
librsvg /usr/include/
librsvg /usr/include/librsvg-2.0/
librsvg /usr/include/librsvg-2.0/librsvg/
librsvg /usr/include/librsvg-2.0/librsvg/rsvg-cairo.h
librsvg /usr/include/librsvg-2.0/librsvg/rsvg-features.h
librsvg /usr/include/librsvg-2.0/librsvg/rsvg-version.h
librsvg /usr/include/librsvg-2.0/librsvg/rsvg.h
librsvg /usr/lib/
librsvg /usr/lib/gdk-pixbuf-2.0/
librsvg /usr/lib/gdk-pixbuf-2.0/2.10.0/
librsvg /usr/lib/gdk-pixbuf-2.0/2.10.0/loaders/
librsvg /usr/lib/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-svg.so
librsvg /usr/lib/girepository-1.0/
librsvg /usr/lib/girepository-1.0/Rsvg-2.0.typelib
librsvg /usr/lib/librsvg-2.so
librsvg /usr/lib/librsvg-2.so.2
librsvg /usr/lib/librsvg-2.so.2.48.0
librsvg /usr/lib/pkgconfig/
librsvg /usr/lib/pkgconfig/librsvg-2.0.pc
librsvg /usr/share/
librsvg /usr/share/doc/
librsvg /usr/share/doc/librsvg/
librsvg /usr/share/doc/librsvg/COMPILING.md
librsvg /usr/share/doc/librsvg/CONTRIBUTING.md
librsvg /usr/share/doc/librsvg/README.md
librsvg /usr/share/doc/librsvg/code-of-conduct.md
librsvg /usr/share/gir-1.0/
librsvg /usr/share/gir-1.0/Rsvg-2.0.gir
librsvg /usr/share/gtk-doc/
librsvg /usr/share/gtk-doc/html/
librsvg /usr/share/gtk-doc/html/rsvg-2.0/
librsvg /usr/share/gtk-doc/html/rsvg-2.0/RsvgHandle.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/annotation-glossary.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/api-index-full.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/ch01.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/ch01s02.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/ch01s03.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/ch02.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/ch03.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/home.png
librsvg /usr/share/gtk-doc/html/rsvg-2.0/index.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/left-insensitive.png
librsvg /usr/share/gtk-doc/html/rsvg-2.0/left.png
librsvg /usr/share/gtk-doc/html/rsvg-2.0/licence.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/migrating-to-geometry-apis.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/object-tree.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/recommendations-assets.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/right-insensitive.png
librsvg /usr/share/gtk-doc/html/rsvg-2.0/right.png
librsvg /usr/share/gtk-doc/html/rsvg-2.0/rsvg-2.0.devhelp2
librsvg /usr/share/gtk-doc/html/rsvg-2.0/rsvg-Deprecated-functions-to-render-to-GdkPixbuf.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/rsvg-Deprecated-functions-to-render-with-Cairo.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/rsvg-Using-RSVG-with-Cairo.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/rsvg-Using-RSVG-with-GIO.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/rsvg-Version-checks.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/rsvg.html
librsvg /usr/share/gtk-doc/html/rsvg-2.0/style.css
librsvg /usr/share/gtk-doc/html/rsvg-2.0/up-insensitive.png
librsvg /usr/share/gtk-doc/html/rsvg-2.0/up.png
librsvg /usr/share/man/
librsvg /usr/share/man/man1/
librsvg /usr/share/man/man1/rsvg-convert.1.gz
librsvg /usr/share/thumbnailers/
librsvg /usr/share/thumbnailers/librsvg.thumbnailer
librsvg /usr/share/vala/
librsvg /usr/share/vala/vapi/
librsvg /usr/share/vala/vapi/librsvg-2.0.vapi
[fabio@lolix ~]$