[MacPorts] #49552: problem for install libgcc on El capitan 10.11.1

[MacPorts]

#49552: problem for install libgcc on El capitan 10.11.1
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  Reporter:  wanghaotian2280@…  |      Owner:  mww@…
      Type:  defect             |     Status:  closed
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:  2.3.4
Resolution:  duplicate          |   Keywords:
      Port:  libgcc             |
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Changes (by ryandesign@…):

 * status:  new => closed
 * resolution:   => duplicate


Comment:

 El Capitan introduces a new feature called System Integrity Protection
 which prevents you from modifying the contents of /usr and other system
 directories, even as root. The El Capitan installer should have removed
 foreign items from protected locations, but apparently it missed
 /usr/include/malloc.h. I'll file a bug report with Apple about this.
 You'll have to boot to the recovery partition, disable SIP, remove
 /usr/include/malloc.h (and if you've previously made any other changes in
 system directories, now would be a good opportunity to undo them, if
 they're still there), then re-enable SIP.

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Ticket URL: <https://trac.macports.org/ticket/49552#comment:3>
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