[Slackbuilds-users] arch question

[Andrew Conway]

Hi

I'm just starting out making slackbuild scripts and am spending some 
time reading and understanding the docs, but please excuse me if this is 
a stupid or already-asked question on this list.

Originally posted here: 
http://www.linuxquestions.org/questions/slackware-14/slackbuild-guidance-needed-641318/

I've succeeded in making a slackbuild for kphotoalbum but have come 
across conflicting advice.
http://www.slackbuilds.com/guidelines/ tells me to include these lines:
Code:

if [ "$ARCH" = "i486" ]; then
        SLKCFLAGS="-O2 -march=i486 -mtune=i686"
     elif [ "$ARCH" = "i686" ]; then
        SLKCFLAGS="-O2 -march=i686 -mtune=i686"
     elif [ "$ARCH" = "x86_64" ]; then
        SLKCFLAGS="-O2 -fPIC"
     fi

but the tutorial http://www.slackwiki.org/Writing_A_SlackBuild_Script says
Code:

if [ "$ARCH" = "i386" ]; then
   SLKCFLAGS="-O2 -march=i386 -mtune=i686"
  elif [ "$ARCH" = "i486" ]; then
   SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  elif [ "$ARCH" = "x86_64" ]; then
   SLKCFLAGS="-O2 -fPIC"
fi

Which is preferred?

Andrew