-By default, this will install into /usr/local. If you want to install this
-libdrm to replace your system copy, say:
+libdrm - userspace library for drm
-./configure --prefix=/usr --exec-prefix=/
+This is libdrm, a userspace library for accessing the DRM, direct
+rendering manager, on Linux, BSD and other operating systes that
+support the ioctl interface. The library provides wrapper functions
+for the ioctls to avoid exposing the kernel interface directly, and
+for chipsets with drm memory manager, support for tracking relocations
+and buffers. libdrm is a low-level library, typically used by
+graphics drivers such as the Mesa DRI drivers, the X drivers, libva
+and similar projects. New functionality in the kernel DRM drivers
+typically requires a new libdrm, but a new libdrm will always work
+with an older kernel.
+
+
+Compiling
+---------
+
+libdrm is a standard autotools packages and follows the normal
+configure, build and install steps. The first step is to configure
+the package, which is done by running the configure shell script:
+
+ ./configure
+
+By default, libdrm will install into the /usr/local/ prefix. If you
+want to install this DRM to replace your system copy, pass
+--prefix=/usr and --exec-prefix=/ to configure. If you are building
+libdrm from a git checkout, you first need to run the autogen.sh
+script. You can pass any options to autogen.sh that you would other
+wise pass to configure, or you can just re-run configure with the
+options you need once autogen.sh finishes.
+
+Next step is to build libdrm:
+
+ make
+
+and once make finishes successfully, install the package using
+
+ make install
+
+If you are install into a system location, you will need to be root to
+perform the install step.
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