[MacPorts] #31821: reinplace -E doesn't work when /usr/bin/sed switches from BSD sed to GNU sed or vice versa (was: [minor issue] sed issue while building arm-none-eabi-binutils)

[MacPorts]

#31821: reinplace -E doesn't work when /usr/bin/sed switches from BSD sed to GNU
sed or vice versa
---------------------------------+------------------------------------------
  Reporter:  ekawahyu@…          |       Owner:  macports-tickets@…                   
      Type:  enhancement         |      Status:  closed                               
  Priority:  Low                 |   Milestone:                                       
 Component:  base                |     Version:  2.0.3                                
Resolution:  invalid             |    Keywords:                                       
      Port:                      |  
---------------------------------+------------------------------------------
Changes (by ryandesign@…):

 * cc: ryandesign@… (added)
  * component:  ports => base
  * port:  arm-none-eabi-binutils =>


Comment:

 In the specific case you found above, it's not arm-none-eabi-binutils'
 configuration program; it's MacPorts base itself, which has a
 "`reinplace`" command which portfiles can use, which is basically a
 wrapper to sed. The relevant reinplace that's demonstrating the problem is
 in the crossbinutils portgroup that the arm-none-eabi-binutils port (and
 the other cross-compiled binutils ports) use:

 browser:trunk/dports/_resources/port1.0/group/crossbinutils-1.0.tcl?rev=69962#L89

 The `-E` switch that this `reinplace` is using means "use extended (i.e.
 modern) regular expressions". With BSD sed, the way to do that is to pass
 it the argument `-E`. With GNU sed, the argument is `-r`. MacPorts base's
 configure script will detect whether your sed is BSD sed or GNU sed and
 pass the correct argument:

 browser:trunk/base/aclocal.m4?rev=80222#L912

 So the only reason this failed for you is that you configured and
 installed MacPorts base back when you had BSD sed, and then later you
 replaced sed with GNU sed -- or you installed MacPorts base from one of
 our pre-compiled disk images, which are built on such a system.

-- 
Ticket URL: <https://trac.macports.org/ticket/31821#comment:2>
MacPorts <http://www.macports.org/>
Ports system for Mac OS