gst-plugins-bad cannot be built with meson. ext/hls/m3u8.c uses functions declared in math.h, but libm is not listed as dependencies in meson.build.

FAILED: ext/hls/libgsthls.so 
clang  -o ext/hls/libgsthls.so 'ext/hls/gsthls@sha/gsthlsdemux.c.o' 'ext/hls/gsthls@sha/gsthlsdemux-util.c.o' 'ext/hls/gsthls@sha/gsthlsplugin.c.o' 'ext/hls/gsthls@sha/gsthlssink.c.o' 'ext/hls/gsthls@sha/gstm3u8playlist.c.o' 'ext/hls/gsthls@sha/m3u8.c.o' '-L/home/lantw44/gnome/devinstall/lib' '-L/usr/local/lib' '-Wl,--no-undefined' '-Wl,--as-needed' '-shared' '-fPIC' '-Wl,-soname,libgsthls.so' '-march=corei7' '-B/home/lantw44/.local/bin' '-pipe' '-g3' '-O1' 'gst-libs/gst/adaptivedemux/libgstadaptivedemux-1.0.so.0.1191.0' 'gst-libs/gst/uridownloader/libgsturidownloader-1.0.so.0.1191.0' 'gst-libs/gst/uridownloader/libgsturidownloader-1.0.so.0.1191.0' 'gst-libs/gst/uridownloader/libgsturidownloader-1.0.so.0.1191.0' '-lgstpbutils-1.0' '-lgstreamer-1.0' '-lgobject-2.0' '-lglib-2.0' '-lintl' '-lgsttag-1.0' '-lgstreamer-1.0' '-lgobject-2.0' '-lglib-2.0' '-lintl' '-lgstvideo-1.0' '-lgstbase-1.0' '-lgstreamer-1.0' '-lgobject-2.0' '-lglib-2.0' '-lintl' '-lgstbase-1.0' '-lgstreamer-1.0' '-lgobject-2.0' '-lglib-2.0' '-lintl' '-lgstbase-1.0' '-lgstreamer-1.0' '-lgobject-2.0' '-lglib-2.0' '-lintl' '-lgstbase-1.0' '-lgstreamer-1.0' '-lgobject-2.0' '-lglib-2.0' '-lintl' '-lnettle' '-Wl,-rpath,/home/lantw44/gnome/build/gst-plugins-bad/ext/hls:/home/lantw44/gnome/build/gst-plugins-bad/gst-libs/gst/adaptivedemux:/home/lantw44/gnome/build/gst-plugins-bad/gst-libs/gst/uridownloader'  
ext/hls/gsthls@sha/m3u8.c.o: In function `double_from_string':
/home/lantw44/gnome/build/gst-plugins-bad/../../source/gst-plugins-bad/ext/hls/m3u8.c:225: undefined reference to `__isfinite'
clang: error: linker command failed with exit code 1 (use -v to see invocation)