Hi
First of all, my apologies if this is not the correct list to report
this.
I had problems using the binary distribution of wxhaskell for OSX. I
get an error message indicating that the post-install step failed
because /opt/local/bin/ghc-pkg was not found. Since I'm not using the
macports version of ghc anymore, it is not surprising that ghc-pkg was
not found there.
So I looked at /Volumes/wxhaskell/wxhaskell.pkg/Contents/Resources/
wxhaskell.post_install and saw this:
#!/bin/sh
GHCPKG=/opt/local/bin/ghc-pkg
# try these versions of GHC-PKG in turn
# would it maybe be best just to let the installer fail?
if test "$GHCPKG" = ""; then
if test -f /usr/local/bin/ghc-pkg; then
GHCPKG=/usr/local/bin/ghc-pkg
elif test -f /opt/local/bin/ghc-pkg; then
GHCPKG=/opt/local/bin/ghc-pkg
elif test -f /sw/bin/ghc-pkg; then
GHCPKG=/sw/bin/ghc-pkg
else
echo "I can't find ghc-pkg in the path ($PATH)!"
echo "Is GHC even installed?"
exit 1
fi
fi
cat "$1/Contents/Resources/wxcore.pkg" | sed -e "s|\${wxhlibdir}|/usr/
local/wxhaskell/lib|" | $GHCPKG --global update -
cat "$1/Contents/Resources/wx.pkg" | sed -e "s|\${wxhlibdir}|/usr/
local/wxhaskell/lib|" | $GHCPKG --global update -
Now, since GHCPKG is initialized as "/opt/local/bin/ghc-pkg", the test
"$GHCPKG" = "" will always fail. This means that the long chain of ifs
is dead-code and, more importantly, this script is useless for anyone
not using macports. This is particularly problematic now that the
Haskell Platform is suggested as the main channel for ghc distribution.
My suggestion would be to change the script to:
#!/bin/sh
GHCPKG=$(which ghc-pkg)
# try these versions of GHC-PKG in turn
# would it maybe be best just to let the installer fail?
if test "$GHCPKG" = ""; then
echo "I can't find ghc-pkg in the path ($PATH)!"
echo "Is GHC even installed?"
exit 1
fi
cat "$1/Contents/Resources/wxcore.pkg" | sed -e "s|\${wxhlibdir}|/usr/
local/wxhaskell/lib|" | $GHCPKG --global update -
cat "$1/Contents/Resources/wx.pkg" | sed -e "s|\${wxhlibdir}|/usr/
local/wxhaskell/lib|" | $GHCPKG --global update -
Thanks,
Daniel
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