[Seth:~/Downloads: 19] => sudo python fslinstaller.py

--- FSL Installer - Version 2.0.20 ---

[OK] Installer is current

Where would you like to install FSL? [/usr/local]:

FSL exists in the current location, would you like to keep the old version? [No]: No

Downloading FSL version 5.0.9 (this may take some time)

Checking download...

[OK] Download is good.

Installing FSL software...

[OK] FSL software installed.

Creating Application links...

[Skipped] Application fslview.app already linked.

Checking for X11 windowing system (required for FSL GUIs).

[OK] X11 software (required for FSL GUIs) is installed.

83.718u 49.543s 42:16.50 5.2% 0+0k 471+4200io 2pf+0w

[Seth:~/Downloads: 20] => fvs

dyld: Library not loaded: /usr/X11R6/lib/libSM.6.dylib

  Referenced from: /usr/local/fsl/bin/fslview.app/Contents/MacOS/fslview

  Reason: no suitable image found.  Did find:

/opt/local/lib/libSM.6.dylib: mach-o, but wrong architecture

Trace/BPT trap

[Seth:~/Downloads: 21] =>

Process:               fslview [43988]

Path:                  /usr/local/fsl/bin/fslview.app/Contents/MacOS/fslview

Identifier:            fslview

Version:               ???

Code Type:             X86 (Native)

Parent Process:        ??? [1]

Responsible:           fslview [43988]

User ID:               501

Date/Time:             2015-11-16 11:23:11.615 -0700

OS Version:            Mac OS X 10.11.1 (15B42)

Report Version:        11

Anonymous UUID:        1C6B909A-6FC5-BAB7-6D1D-496602980DB1

Time Awake Since Boot: 310000 seconds

System Integrity Protection: enabled

Crashed Thread:        0

Exception Type:        EXC_BREAKPOINT (SIGTRAP)

Exception Codes:       0x0000000000000002, 0x0000000000000000

Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:

dyld: launch, loading dependent libraries

Dyld Error Message:

  Library not loaded: /usr/X11R6/lib/libSM.6.dylib

  Referenced from: /usr/local/fsl/bin/fslview.app/Contents/MacOS/fslview

  Reason: image not found

Binary Images:

0x8fe51000 - 0x8fe855bf  dyld (360.17) <E08B9CA8-D557-32D5-8DDD-E0B563900367> /usr/lib/dyld

Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 16 GB, SMC 1.25f4

Graphics: ATI Radeon HD 5770, ATI Radeon HD 5770, PCIe, 1024 MB

Memory Module: DIMM Riser B/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600

Memory Module: DIMM Riser B/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600

Memory Module: DIMM Riser A/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600

Memory Module: DIMM Riser A/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600

Memory Module: DIMM Riser B/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600

Memory Module: DIMM Riser B/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600

Memory Module: DIMM Riser A/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600

Memory Module: DIMM Riser A/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0000, 0x000000463732353642363145353830304600

Bluetooth: Version 4.4.2f1 16391, 3 services, 26 devices, 1 incoming serial ports

Network Service: Ethernet 1, Ethernet, en0

PCI Card: ATI Radeon HD 5770, Display Controller, Slot-1

PCI Card: ATI Radeon HD 5770, ATY,HoolockParent, Slot-1

Serial ATA Device: WDC WD4003FZEX-00Z4SA0, 4 TB

Serial ATA Device: WDC WD4003FZEX-00Z4SA0, 4 TB

Serial ATA Device: WDC WD2003FZEX-00Z4SA0, 2 TB

Serial ATA Device: WDC WD2003FZEX-00Z4SA0, 2 TB

Parallel ATA Device: OPTIARC DVD RW AD-7170A

USB Device: USB Bus

USB Device: USB Bus

USB Device: USB Bus

USB Device: Bluetooth HCI

USB Device: USB Bus

USB Device: USB 2.0 Bus

USB Device: Keyboard Hub

USB Device: USB Receiver

USB Device: Apple Keyboard

FireWire Device: built-in_hub, Up to 800 Mb/sec

Thunderbolt Bus: