On Sun, Aug 26, 2007 at 09:12:27PM +0200, A Mennucc wrote: > I add another info
> By looking in > http://buildd.debian.org/fetch.cgi?pkg=mplayer;ver=1.0%7Erc1-15;arch=alpha;stamp=1185972985 > I deduced that indeed "configure" detects the CPU of the buildd , as follows > > Checking for GCC & CPU optimization abilities ... ev67 > > Checking for MVI instruction support in GCC ... yes So for starters, build with: DEB_HOST_GNU_TYPE := $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE) DEB_BUILD_GNU_TYPE := $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE) ifeq ($(DEB_BUILD_GNU_TYPE), $(DEB_HOST_GNU_TYPE)) conf_args += --build $(DEB_BUILD_GNU_TYPE) else conf_args += --build $(DEB_BUILD_GNU_TYPE) --host $(DEB_HOST_GNU_TYPE) endif ./configure $(conf_args) [...] alpha is not the only architecture where your package will have problems if you allow configure to incorrectly select an -mcpu option at build time based on the build host's capabilities. > This means that mplayer is compiled with 'gcc -mcpu=ev67 ' ; > and also that CAN_COMPILE_ALPHA_MVI is set, and this enables some > specific code in libmpeg2/ (I don't know what MVI is , alas - but it > looks as something that not all CPUs have) I don't know what MVI is either, but according to <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/2003-September/020895.html> it's not supported on ev56 so should be disabled, or else enabled only as an optional subarch optimization within the package. Thanks, -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. [EMAIL PROTECTED] http://www.debian.org/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
