Disable the default compilation of cmake as its support is to-be-removed.

extras/contrib/src/Distributions/darwin.mak

 # Darwin rules
-download-all: autoconf automake libtool cmake gettext pkgconfig freetype2 \
+download-all: autoconf automake libtool gettext pkgconfig freetype2 \
     fribidi a52dec mpeg2dec libid3tag libmad libogg libvorbis libtheora flac \
     speex libshout faad2 faac lame twolame libebml libmatroska ffmpeg libdca \
     libdvdcss libdvdnav libdvbpsi live libcaca libmodplug xml asa jpeg tiff \
     SDL zlib libpng libgpg-error libgcrypt opencdk gnutls libopendaap libcddb \
     libcdio vcdimager SDL_image glib gecko-sdk mpcdec dirac expat taglib \
     x264 yasm goom lua zvbi fontconfig ncurses all
-all: .autoconf .automake .libtool .cmake .intl .pkgcfg .freetype \
+all: .autoconf .automake .libtool .intl .pkgcfg .freetype \
     .fribidi .a52 .mpeg2 .id3tag .mad .ogg .vorbis .vorbisenc .theora \
     .flac .speex .shout .faad .faac .lame .twolame .ebml .matroska .ffmpeg \
     .dvdcss .dvdnav .dvdread .dvbpsi .live .caca .mod .asa \