[mythtv] MythTV on Mac OS X for Intel

[Todd Ignasiak]

On 3/20/06, Nigel Pearson <nigel at ind.tansu.com.au> wrote:
> > I used these arguments to configure:
> >
> > env QMAKESPEC=/opt/local/share/qt3/mkspecs/macx-g++ \
> > LD_LIBRARY_PATH=/opt/local/lib \
> >    ./configure --prefix=/opt/myth --arch=i686 \
> >              --disable-distcc \
> >              "--extra-cflags=-msse -msse2" \
> >              "--extra-cxxflags=-msse -msse2" \
> >              --cc=gcc
>
>
>         Kris, Todd, others.
>
>         Could I get you to try these configure changes?
> I am hoping it will now auto-configure on an Intel Mac.
> The tuning flags are probably wrong, but we can argue
> those later.

The CPU type has some whitespace that's getting in the way:

./configure
find: /Developer/FireWireSDK*: No such file or directory
# Basic Settings
Compile type     release
Compiler cache   no
DistCC           yes
Install prefix   /usr/local
CPU              x86 (      Intel Core Duo)
Big Endian       no
MMX enabled      no
Vector Builtins  no


Changing the sed expression to "sed 's/^[ \t]*CPU Type: //'" worked for me:

./configure
find: /Developer/FireWireSDK*: No such file or directory
# Basic Settings
Compile type     release
Compiler cache   no
DistCC           yes
Install prefix   /usr/local
CPU              x86 (Intel Core Duo)
Big Endian       no
MMX enabled      yes
Vector Builtins  no

Also, a couple more questions on MacOS configure defaults:

--disable-distcc:  distcc is installed on Macs, but the build fails
when it is used in the default config.  Should it be disabled by
default?
--disable-mmx:  the Intel CPUs support MMX.  But, without some patches
to tweak the syntax, compile fails.

> Index: configure
> ===================================================================
> --- configure   (revision 9412)
> +++ configure   (working copy)
> @@ -221,6 +221,18 @@
>       processor_flags=`cat /proc/cpuinfo | grep "flags" | head -n 1`
>   fi
>
> +# Mac OS X equivalent
> +if test -x /usr/sbin/system_profiler ; then
> +    processor=`/usr/sbin/system_profiler SPHardwareDataType \
> +               | grep 'CPU Type' | sed 's/CPU Type: //'`
> +    if [ x"$processor" = x"Intel Core Solo" \
> +         -o x"$processor" = x"Intel Core Duo" ]; then
> +      # Override the default (useless) i386 for auto-MMX detection
> later
> +      cpu="pentium-m"
> +      cpu_raw=$cpu
> +    fi
> +fi
> +
>   # These have to be looked up early for some types of cross-compiling
> to work
>   cpu_overide="no"
>   for opt do
> @@ -487,6 +499,7 @@
>   strip="strip -x"
>   LDFLAGS="-Wl,-search_paths_first"
>   FFSLDFLAGS=-Wl,-bind_at_load
> +memalignhack="yes"   # Probably not useful, but needed on Intel?
>   ;;
>   MINGW32*)
>   # Note: the rest of the mingw32 config is done afterwards as mingw32
> @@ -1279,6 +1292,10 @@
>          optimize="small"
>          cpu_raw="c3"
>
> +# Intel Core
> +   elif expr "$processor" : ".*Intel Core" > /dev/null ; then
> +       ARCHFLAGS="-march=pentium-m -msse -msse2 -msse3 -mfpmath=sse
> -ffast-math"
> +
>   # if no known processor info, tune base on cpu_raw info
>      elif test x"$cpu_raw" = x"i686" -a x"$mmx" = x"yes" ; then
>          ARCHFLAGS="-march=pentium2"
>
> --
> Nigel Pearson, nigel at ind.tansu.com.au|  "Let's see how Spike is going"
> Telstra Net. Eng., Sydney, Australia |              ...
> Office: 9814 4803    Fax:  9814 4897 |"I'd like to keep Spike as my
> pet."
> Mobile: 0408 664435  Home: 9792 6998 |        Illyria - Angel
>
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