Bug#672546: xserver-xorg-video-openchrome: FTBFS on hurd-i386: unconditional libdrm requirement

[Pino Toscano <pino@debian.org>]

Package: xserver-xorg-video-openchrome
Version: 1:0.2.904+svn1050-1
Severity: important
Tags: patch
User: debian-hurd@lists.debian.org
Usertags: hurd

Hi,

currently, xserver-xorg-video-openchrome does not build on GNU/Hurd.

The problem is that libdrm is considered an hard requirement (by the
buildsystem and the Debian packaging), while it is only if the DRI
support is enabled (and indeed there seems to be only libdrm usage in
the DRI-related code).

Attached there are patches to fix this:
- no-libdrm.diff:
  do not check for libdrm among the base Xorg packages; libdrm will be
  searched later as mandatory requirement if the DRI support is enabled
- debian.diff:
  disable the libdrm-dev build dependency on Hurd architectures

Thanks,
-- 
Pino

--- a/configure.ac
+++ b/configure.ac
@@ -70,7 +70,7 @@ XORG_DRIVER_CHECK_EXT(XF86DRI, xextproto
 XORG_DRIVER_CHECK_EXT(DPMSExtension, xextproto)
 
 # Checks for pkg-config packages
-PKG_CHECK_MODULES(XORG, [xorg-server xproto fontsproto libdrm $REQUIRED_MODULES])
+PKG_CHECK_MODULES(XORG, [xorg-server xproto fontsproto $REQUIRED_MODULES])
 PKG_CHECK_MODULES(XEXT, [xextproto >= 7.0.99.1],
  HAVE_XEXTPROTO_71="yes"; AC_DEFINE(HAVE_XEXTPROTO_71, 1, [xextproto 7.1 available]),
  HAVE_XEXTPROTO_71="no")

--- a/debian/control
+++ b/debian/control
@@ -17,7 +17,7 @@ Build-Depends:
  x11proto-xf86dri-dev,
  x11proto-video-dev,
  x11proto-gl-dev,
- libdrm-dev (>> 2.0),
+ libdrm-dev (>> 2.0) [!hurd-any],
  libx11-dev,
  libgl1-mesa-dev | libgl1-dev,
  libxvmc-dev,
  HAVE_XEXTPROTO_71="no")