1.7.0 beta & rc1: libcurl errors

[Jay Levitt]

I know this isn't a great bug report, because I already overwrote the fail 
case; sorry about that.

I upgraded from a DMG-installed 1.6.0 to a built-from-source 1.7.0 beta 1. 
I then updated a bunch of ports, but I don't think libcurl was one of them. 
  (Is there a log?  I don't think there is.)

Today, I tried using git, and got:

dyld: Library not loaded: /opt/local/lib/libcurl.4.dylib
   Referenced from: /opt/local/bin/git
   Reason: Incompatible library version: git requires version 6.0.0 or 
later, but libcurl.4.dylib provides version 5.0.0

I tried to rebuild the port, but the port command had the same problem:

sudo port clean git
couldn't load file "/opt/local/share/macports/Tcl/pextlib1.0/Pextlib.dylib": 
dlopen(/opt/local/share/macports/Tcl/pextlib1.0/Pextlib.dylib, 10): Library 
not loaded: /opt/local/lib/libcurl.4.dylib
   Referenced from: /opt/local/share/macports/Tcl/pextlib1.0/Pextlib.dylib
   Reason: Incompatible library version: Pextlib.dylib requires version 
6.0.0 or later, but libcurl.4.dylib provides version 5.0.0
     while executing
"load /opt/local/share/macports/Tcl/pextlib1.0/Pextlib.dylib"
     ("package ifneeded" script)
     invoked from within
"package require Pextlib 1.0"
     (file "/opt/local/bin/port" line 40)

I tried upgrading to 1.7.0rc1, but IT had the same problem:

$ svn switch http://svn.macports.org/repository/macports/tags/release_1_7_0-rc1
$ ./configure;make;sudo make install
[...]
/usr/bin/tclsh src/dep_map_clean.tcl /Library/Tcl
can't find package Pextlib 1.0
     while executing
"package require Pextlib 1.0"
     (file "/opt/local/share/macports/Tcl/registry1.0/receipt_flat.tcl" line 37)
     invoked from within
"source /opt/local/share/macports/Tcl/registry1.0/receipt_flat.tcl"
     ("package ifneeded" script)
     invoked from within
"package require receipt_flat 1.0"
     (file "/opt/local/share/macports/Tcl/registry1.0/registry.tcl" line 35)
     invoked from within
"source /opt/local/share/macports/Tcl/registry1.0/registry.tcl"
     ("package ifneeded" script)
     invoked from within
"package require registry 1.0"
     (file "src/dep_map_clean.tcl" line 10)
make: *** [install] Error 1

Finally, I did "make clean;make;sudo make install" which succeeded.  I was 
then able to get things working:

$ sudo port clean git-core
Portfile changed since last build; discarding previous state.
--->  Cleaning git-core
$ sudo port sync
$ sudo port install git-core
Error: Requested variants do not match original selection.
Please perform 'port clean curl' or specify the force option.
Error: The following dependencies failed to build: curl
Error: Status 1 encountered during processing.
$ sudo port clean curl
--->  Cleaning curl
$ sudo port install curl
--->  Activating curl @7.19.2_0
$ git version
git version 1.6.0.4
$

So, since I can't reproduce this anymore... consider this an FYI that 
something might be broken for people upgrading from 1.6.0.  Or it might not. 
  Probably one of the two.

Jay