1libdrm - userspace library for drm 2 3This is libdrm, a userspace library for accessing the DRM, direct 4rendering manager, on Linux, BSD and other operating systems that 5support the ioctl interface. The library provides wrapper functions 6for the ioctls to avoid exposing the kernel interface directly, and 7for chipsets with drm memory manager, support for tracking relocations 8and buffers. libdrm is a low-level library, typically used by 9graphics drivers such as the Mesa DRI drivers, the X drivers, libva 10and similar projects. New functionality in the kernel DRM drivers 11typically requires a new libdrm, but a new libdrm will always work 12with an older kernel. 13 14 15Compiling 16--------- 17 18libdrm has two build systems, a legacy autotools build system, and a newer 19meson build system. The meson build system is much faster, and offers a 20slightly different interface, but otherwise provides an equivalent feature set. 21 22To use it: 23 24 meson builddir/ 25 26By default this will install into /usr/local, you can change your prefix 27with --prefix=/usr (or `meson configure builddir/ -Dprefix=/usr` after 28the initial meson setup). 29 30Then use ninja to build and install: 31 32 ninja -C builddir/ install 33 34If you are installing into a system location you will need to run install 35separately, and as root. 36 37 38Alternatively you can invoke autotools configure: 39 40 ./configure 41 42By default, libdrm will install into the /usr/local/ prefix. If you 43want to install this DRM to replace your system copy, pass 44--prefix=/usr and --exec-prefix=/ to configure. If you are building 45libdrm from a git checkout, you first need to run the autogen.sh 46script. You can pass any options to autogen.sh that you would other 47wise pass to configure, or you can just re-run configure with the 48options you need once autogen.sh finishes. 49 50Next step is to build libdrm: 51 52 make 53 54and once make finishes successfully, install the package using 55 56 make install 57 58If you are installing into a system location, you will need to be root 59to perform the install step. 60