diff --git a/Library/Homebrew/vendor/README.md b/Library/Homebrew/vendor/README.md
index 79b118ce4f..d69ef4d63e 100644
--- a/Library/Homebrew/vendor/README.md
+++ b/Library/Homebrew/vendor/README.md
@@ -3,7 +3,7 @@ Vendored Dependencies
 
 * [plist](https://github.com/patsplat/plist), version 3.3.0
 
-* [ruby-macho](https://github.com/Homebrew/ruby-macho), version 1.1.0
+* [ruby-macho](https://github.com/Homebrew/ruby-macho), version 1.2.0
 
 * [backports](https://github.com/marcandre/backports), version 3.8.0
 
@@ -35,7 +35,7 @@ Vendored Dependencies
 ### ruby-macho
 
 > The MIT License
-> Copyright (c) 2015, 2016, 2017 William Woodruff <william @ tuffbizz.com>
+> Copyright (c) 2015, 2016, 2017, 2018 William Woodruff <william @ yossarian.net>
 >
 > Permission is hereby granted, free of charge, to any person obtaining a copy
 > of this software and associated documentation files (the "Software"), to deal
diff --git a/Library/Homebrew/vendor/macho/macho.rb b/Library/Homebrew/vendor/macho/macho.rb
index b7f20ea190..3ba3073304 100644
--- a/Library/Homebrew/vendor/macho/macho.rb
+++ b/Library/Homebrew/vendor/macho/macho.rb
@@ -12,7 +12,7 @@ require "#{File.dirname(__FILE__)}/macho/tools"
 # The primary namespace for ruby-macho.
 module MachO
   # release version
-  VERSION = "1.1.0".freeze
+  VERSION = "1.2.0".freeze
 
   # Opens the given filename as a MachOFile or FatFile, depending on its magic.
   # @param filename [String] the file being opened
diff --git a/Library/Homebrew/vendor/macho/macho/exceptions.rb b/Library/Homebrew/vendor/macho/macho/exceptions.rb
index 14c2c22ae0..d939a55760 100644
--- a/Library/Homebrew/vendor/macho/macho/exceptions.rb
+++ b/Library/Homebrew/vendor/macho/macho/exceptions.rb
@@ -10,7 +10,7 @@ module MachO
   # Raised when a Mach-O file modification fails but can be recovered when
   # operating on multiple Mach-O slices of a fat binary in non-strict mode.
   class RecoverableModificationError < ModificationError
-    # @return [Fixnum, nil] The index of the Mach-O slice of a fat binary for
+    # @return [Integer, nil] The index of the Mach-O slice of a fat binary for
     #   which modification failed or `nil` if not a fat binary. This is used to
     #   make the error message more useful.
     attr_accessor :macho_slice
@@ -40,7 +40,7 @@ module MachO
 
   # Raised when a file's magic bytes are not valid Mach-O magic.
   class MagicError < NotAMachOError
-    # @param num [Fixnum] the unknown number
+    # @param num [Integer] the unknown number
     def initialize(num)
       super "Unrecognized Mach-O magic: 0x#{"%02x" % num}"
     end
@@ -69,7 +69,7 @@ module MachO
 
   # Raised when the CPU type is unknown.
   class CPUTypeError < MachOError
-    # @param cputype [Fixnum] the unknown CPU type
+    # @param cputype [Integer] the unknown CPU type
     def initialize(cputype)
       super "Unrecognized CPU type: 0x#{"%08x" % cputype}"
     end
@@ -77,8 +77,8 @@ module MachO
 
   # Raised when the CPU type/sub-type pair is unknown.
   class CPUSubtypeError < MachOError
-    # @param cputype [Fixnum] the CPU type of the unknown pair
-    # @param cpusubtype [Fixnum] the CPU sub-type of the unknown pair
+    # @param cputype [Integer] the CPU type of the unknown pair
+    # @param cpusubtype [Integer] the CPU sub-type of the unknown pair
     def initialize(cputype, cpusubtype)
       super "Unrecognized CPU sub-type: 0x#{"%08x" % cpusubtype}" \
         " (for CPU type: 0x#{"%08x" % cputype})"
@@ -87,7 +87,7 @@ module MachO
 
   # Raised when a mach-o file's filetype field is unknown.
   class FiletypeError < MachOError
-    # @param num [Fixnum] the unknown number
+    # @param num [Integer] the unknown number
     def initialize(num)
       super "Unrecognized Mach-O filetype code: 0x#{"%02x" % num}"
     end
@@ -95,7 +95,7 @@ module MachO
 
   # Raised when an unknown load command is encountered.
   class LoadCommandError < MachOError
-    # @param num [Fixnum] the unknown number
+    # @param num [Integer] the unknown number
     def initialize(num)
       super "Unrecognized Mach-O load command: 0x#{"%02x" % num}"
     end
@@ -113,8 +113,8 @@ module MachO
   # is wrong.
   class LoadCommandCreationArityError < MachOError
     # @param cmd_sym [Symbol] the load command's symbol
-    # @param expected_arity [Fixnum] the number of arguments expected
-    # @param actual_arity [Fixnum] the number of arguments received
+    # @param expected_arity [Integer] the number of arguments expected
+    # @param actual_arity [Integer] the number of arguments received
     def initialize(cmd_sym, expected_arity, actual_arity)
       super "Expected #{expected_arity} arguments for #{cmd_sym} creation," \
         " got #{actual_arity}"
@@ -140,7 +140,7 @@ module MachO
 
   # Raised when a change at an offset is not valid.
   class OffsetInsertionError < ModificationError
-    # @param offset [Fixnum] the invalid offset
+    # @param offset [Integer] the invalid offset
     def initialize(offset)
       super "Insertion at offset #{offset} is not valid"
     end
diff --git a/Library/Homebrew/vendor/macho/macho/fat_file.rb b/Library/Homebrew/vendor/macho/macho/fat_file.rb
index 351be5ac68..e46948de41 100644
--- a/Library/Homebrew/vendor/macho/macho/fat_file.rb
+++ b/Library/Homebrew/vendor/macho/macho/fat_file.rb
@@ -261,11 +261,8 @@ module MachO
     # @raise [MachOError] if the instance was initialized without a file
     # @note Overwrites all data in the file!
     def write!
-      if filename.nil?
-        raise MachOError, "cannot write to a default file when initialized from a binary string"
-      else
-        File.open(@filename, "wb") { |f| f.write(@raw_data) }
-      end
+      raise MachOError, "no initial file to write to" if filename.nil?
+      File.open(@filename, "wb") { |f| f.write(@raw_data) }
     end
 
     private
diff --git a/Library/Homebrew/vendor/macho/macho/headers.rb b/Library/Homebrew/vendor/macho/macho/headers.rb
index 08a4b80c4c..0d4463a6cb 100644
--- a/Library/Homebrew/vendor/macho/macho/headers.rb
+++ b/Library/Homebrew/vendor/macho/macho/headers.rb
@@ -450,10 +450,10 @@ module MachO
     # Fat binary header structure
     # @see MachO::FatArch
     class FatHeader < MachOStructure
-      # @return [Fixnum] the magic number of the header (and file)
+      # @return [Integer] the magic number of the header (and file)
       attr_reader :magic
 
-      # @return [Fixnum] the number of fat architecture structures following the header
+      # @return [Integer] the number of fat architecture structures following the header
       attr_reader :nfat_arch
 
       # always big-endian
@@ -481,19 +481,19 @@ module MachO
     # these, representing one or more internal Mach-O blobs.
     # @see MachO::Headers::FatHeader
     class FatArch < MachOStructure
-      # @return [Fixnum] the CPU type of the Mach-O
+      # @return [Integer] the CPU type of the Mach-O
       attr_reader :cputype
 
-      # @return [Fixnum] the CPU subtype of the Mach-O
+      # @return [Integer] the CPU subtype of the Mach-O
       attr_reader :cpusubtype
 
-      # @return [Fixnum] the file offset to the beginning of the Mach-O data
+      # @return [Integer] the file offset to the beginning of the Mach-O data
       attr_reader :offset
 
-      # @return [Fixnum] the size, in bytes, of the Mach-O data
+      # @return [Integer] the size, in bytes, of the Mach-O data
       attr_reader :size
 
-      # @return [Fixnum] the alignment, as a power of 2
+      # @return [Integer] the alignment, as a power of 2
       attr_reader :align
 
       # always big-endian
@@ -522,25 +522,25 @@ module MachO
 
     # 32-bit Mach-O file header structure
     class MachHeader < MachOStructure
-      # @return [Fixnum] the magic number
+      # @return [Integer] the magic number
       attr_reader :magic
 
-      # @return [Fixnum] the CPU type of the Mach-O
+      # @return [Integer] the CPU type of the Mach-O
       attr_reader :cputype
 
-      # @return [Fixnum] the CPU subtype of the Mach-O
+      # @return [Integer] the CPU subtype of the Mach-O
       attr_reader :cpusubtype
 
-      # @return [Fixnum] the file type of the Mach-O
+      # @return [Integer] the file type of the Mach-O
       attr_reader :filetype
 
-      # @return [Fixnum] the number of load commands in the Mach-O
+      # @return [Integer] the number of load commands in the Mach-O
       attr_reader :ncmds
 
-      # @return [Fixnum] the size of all load commands, in bytes, in the Mach-O
+      # @return [Integer] the size of all load commands, in bytes, in the Mach-O
       attr_reader :sizeofcmds
 
-      # @return [Fixnum] the header flags associated with the Mach-O
+      # @return [Integer] the header flags associated with the Mach-O
       attr_reader :flags
 
       # @see MachOStructure::FORMAT
@@ -635,7 +635,7 @@ module MachO
         Utils.magic64?(magic)
       end
 
-      # @return [Fixnum] the file's internal alignment
+      # @return [Integer] the file's internal alignment
       def alignment
         magic32? ? 4 : 8
       end
diff --git a/Library/Homebrew/vendor/macho/macho/load_commands.rb b/Library/Homebrew/vendor/macho/macho/load_commands.rb
index be4319ee2d..8316fccddd 100644
--- a/Library/Homebrew/vendor/macho/macho/load_commands.rb
+++ b/Library/Homebrew/vendor/macho/macho/load_commands.rb
@@ -58,6 +58,8 @@ module MachO
       0x2e => :LC_LINKER_OPTIMIZATION_HINT,
       0x2f => :LC_VERSION_MIN_TVOS,
       0x30 => :LC_VERSION_MIN_WATCHOS,
+      0x31 => :LC_NOTE,
+      0x32 => :LC_BUILD_VERSION,
     }.freeze
 
     # association of symbol representations to load command constants
@@ -66,20 +68,20 @@ module MachO
 
     # load commands responsible for loading dylibs
     # @api private
-    DYLIB_LOAD_COMMANDS = [
-      :LC_LOAD_DYLIB,
-      :LC_LOAD_WEAK_DYLIB,
-      :LC_REEXPORT_DYLIB,
-      :LC_LAZY_LOAD_DYLIB,
-      :LC_LOAD_UPWARD_DYLIB,
+    DYLIB_LOAD_COMMANDS = %i[
+      LC_LOAD_DYLIB
+      LC_LOAD_WEAK_DYLIB
+      LC_REEXPORT_DYLIB
+      LC_LAZY_LOAD_DYLIB
+      LC_LOAD_UPWARD_DYLIB
     ].freeze
 
     # load commands that can be created manually via {LoadCommand.create}
     # @api private
-    CREATABLE_LOAD_COMMANDS = DYLIB_LOAD_COMMANDS + [
-      :LC_ID_DYLIB,
-      :LC_RPATH,
-      :LC_LOAD_DYLINKER,
+    CREATABLE_LOAD_COMMANDS = DYLIB_LOAD_COMMANDS + %i[
+      LC_ID_DYLIB
+      LC_RPATH
+      LC_LOAD_DYLINKER
     ].freeze
 
     # association of load command symbols to string representations of classes
@@ -141,6 +143,8 @@ module MachO
       :LC_LINKER_OPTIMIZATION_HINT => "LinkeditDataCommand",
       :LC_VERSION_MIN_TVOS => "VersionMinCommand",
       :LC_VERSION_MIN_WATCHOS => "VersionMinCommand",
+      :LC_NOTE => "LoadCommand",
+      :LC_BUILD_VERSION => "BuildVersionCommand",
     }.freeze
 
     # association of segment name symbols to names
@@ -173,10 +177,10 @@ module MachO
       # @return [MachO::MachOView] the raw view associated with the load command
       attr_reader :view
 
-      # @return [Fixnum] the load command's identifying number
+      # @return [Integer] the load command's identifying number
       attr_reader :cmd
 
-      # @return [Fixnum] the size of the load command, in bytes
+      # @return [Integer] the size of the load command, in bytes
       attr_reader :cmdsize
 
       # @see MachOStructure::FORMAT
@@ -216,8 +220,8 @@ module MachO
       end
 
       # @param view [MachO::MachOView] the load command's raw view
-      # @param cmd [Fixnum] the load command's identifying number
-      # @param cmdsize [Fixnum] the size of the load command in bytes
+      # @param cmd [Integer] the load command's identifying number
+      # @param cmdsize [Integer] the size of the load command in bytes
       # @api private
       def initialize(view, cmd, cmdsize)
         @view = view
@@ -241,7 +245,7 @@ module MachO
         [cmd, SIZEOF].pack(format)
       end
 
-      # @return [Fixnum] the load command's offset in the source file
+      # @return [Integer] the load command's offset in the source file
       # @deprecated use {#view} instead
       def offset
         view.offset
@@ -267,7 +271,7 @@ module MachO
       # explicit operations on the raw Mach-O data.
       class LCStr
         # @param lc [LoadCommand] the load command
-        # @param lc_str [Fixnum, String] the offset to the beginning of the
+        # @param lc_str [Integer, String] the offset to the beginning of the
         #  string, or the string itself if not being initialized with a view.
         # @raise [MachO::LCStrMalformedError] if the string is malformed
         # @todo devise a solution such that the `lc_str` parameter is not
@@ -295,7 +299,7 @@ module MachO
           @string
         end
 
-        # @return [Fixnum] the offset to the beginning of the string in the
+        # @return [Integer] the offset to the beginning of the string in the
         #  load command
         def to_i
           @string_offset
@@ -308,7 +312,7 @@ module MachO
         # @return [Symbol] the endianness of the serialized load command
         attr_reader :endianness
 
-        # @return [Fixnum] the constant alignment value used to pad the
+        # @return [Integer] the constant alignment value used to pad the
         #  serialized load command
         attr_reader :alignment
 
@@ -320,7 +324,7 @@ module MachO
         end
 
         # @param endianness [Symbol] the endianness of the context
-        # @param alignment [Fixnum] the alignment of the context
+        # @param alignment [Integer] the alignment of the context
         # @api private
         def initialize(endianness, alignment)
           @endianness = endianness
@@ -333,7 +337,7 @@ module MachO
     # identifying an object produced by static link editor. Corresponds to
     # LC_UUID.
     class UUIDCommand < LoadCommand
-      # @return [Array<Fixnum>] the UUID
+      # @return [Array<Integer>] the UUID
       attr_reader :uuid
 
       # @see MachOStructure::FORMAT
@@ -368,28 +372,28 @@ module MachO
       # @return [String] the name of the segment
       attr_reader :segname
 
-      # @return [Fixnum] the memory address of the segment
+      # @return [Integer] the memory address of the segment
       attr_reader :vmaddr
 
-      # @return [Fixnum] the memory size of the segment
+      # @return [Integer] the memory size of the segment
       attr_reader :vmsize
 
-      # @return [Fixnum] the file offset of the segment
+      # @return [Integer] the file offset of the segment
       attr_reader :fileoff
 
-      # @return [Fixnum] the amount to map from the file
+      # @return [Integer] the amount to map from the file
       attr_reader :filesize
 
-      # @return [Fixnum] the maximum VM protection
+      # @return [Integer] the maximum VM protection
       attr_reader :maxprot
 
-      # @return [Fixnum] the initial VM protection
+      # @return [Integer] the initial VM protection
       attr_reader :initprot
 
-      # @return [Fixnum] the number of sections in the segment
+      # @return [Integer] the number of sections in the segment
       attr_reader :nsects
 
-      # @return [Fixnum] any flags associated with the segment
+      # @return [Integer] any flags associated with the segment
       attr_reader :flags
 
       # @see MachOStructure::FORMAT
@@ -466,13 +470,13 @@ module MachO
       #  name as an LCStr
       attr_reader :name
 
-      # @return [Fixnum] the library's build time stamp
+      # @return [Integer] the library's build time stamp
       attr_reader :timestamp
 
-      # @return [Fixnum] the library's current version number
+      # @return [Integer] the library's current version number
       attr_reader :current_version
 
-      # @return [Fixnum] the library's compatibility version number
+      # @return [Integer] the library's compatibility version number
       attr_reader :compatibility_version
 
       # @see MachOStructure::FORMAT
@@ -551,10 +555,10 @@ module MachO
       #  name as an LCStr
       attr_reader :name
 
-      # @return [Fixnum] the number of modules in the library
+      # @return [Integer] the number of modules in the library
       attr_reader :nmodules
 
-      # @return [Fixnum] a bit vector of linked modules
+      # @return [Integer] a bit vector of linked modules
       attr_reader :linked_modules
 
       # @see MachOStructure::FORMAT
@@ -591,10 +595,10 @@ module MachO
     # initialization routine and an index into the module table for the module
     # that defines the routine. Corresponds to LC_ROUTINES.
     class RoutinesCommand < LoadCommand
-      # @return [Fixnum] the address of the initialization routine
+      # @return [Integer] the address of the initialization routine
       attr_reader :init_address
 
-      # @return [Fixnum] the index into the module table that the init routine
+      # @return [Integer] the index into the module table that the init routine
       #  is defined in
       attr_reader :init_module
 
@@ -739,10 +743,10 @@ module MachO
     # A load command containing the offsets and sizes of the link-edit 4.3BSD
     # "stab" style symbol table information. Corresponds to LC_SYMTAB.
     class SymtabCommand < LoadCommand
-      # @return [Fixnum] the symbol table's offset
+      # @return [Integer] the symbol table's offset
       attr_reader :symoff
 
-      # @return [Fixnum] the number of symbol table entries
+      # @return [Integer] the number of symbol table entries
       attr_reader :nsyms
 
       # @return the string table's offset
@@ -772,58 +776,58 @@ module MachO
     # A load command containing symbolic information needed to support data
     # structures used by the dynamic link editor. Corresponds to LC_DYSYMTAB.
     class DysymtabCommand < LoadCommand
-      # @return [Fixnum] the index to local symbols
+      # @return [Integer] the index to local symbols
       attr_reader :ilocalsym
 
-      # @return [Fixnum] the number of local symbols
+      # @return [Integer] the number of local symbols
       attr_reader :nlocalsym
 
-      # @return [Fixnum] the index to externally defined symbols
+      # @return [Integer] the index to externally defined symbols
       attr_reader :iextdefsym
 
-      # @return [Fixnum] the number of externally defined symbols
+      # @return [Integer] the number of externally defined symbols
       attr_reader :nextdefsym
 
-      # @return [Fixnum] the index to undefined symbols
+      # @return [Integer] the index to undefined symbols
       attr_reader :iundefsym
 
-      # @return [Fixnum] the number of undefined symbols
+      # @return [Integer] the number of undefined symbols
       attr_reader :nundefsym
 
-      # @return [Fixnum] the file offset to the table of contents
+      # @return [Integer] the file offset to the table of contents
       attr_reader :tocoff
 
-      # @return [Fixnum] the number of entries in the table of contents
+      # @return [Integer] the number of entries in the table of contents
       attr_reader :ntoc
 
-      # @return [Fixnum] the file offset to the module table
+      # @return [Integer] the file offset to the module table
       attr_reader :modtaboff
 
-      # @return [Fixnum] the number of entries in the module table
+      # @return [Integer] the number of entries in the module table
       attr_reader :nmodtab
 
-      # @return [Fixnum] the file offset to the referenced symbol table
+      # @return [Integer] the file offset to the referenced symbol table
       attr_reader :extrefsymoff
 
-      # @return [Fixnum] the number of entries in the referenced symbol table
+      # @return [Integer] the number of entries in the referenced symbol table
       attr_reader :nextrefsyms
 
-      # @return [Fixnum] the file offset to the indirect symbol table
+      # @return [Integer] the file offset to the indirect symbol table
       attr_reader :indirectsymoff
 
-      # @return [Fixnum] the number of entries in the indirect symbol table
+      # @return [Integer] the number of entries in the indirect symbol table
       attr_reader :nindirectsyms
 
-      # @return [Fixnum] the file offset to the external relocation entries
+      # @return [Integer] the file offset to the external relocation entries
       attr_reader :extreloff
 
-      # @return [Fixnum] the number of external relocation entries
+      # @return [Integer] the number of external relocation entries
       attr_reader :nextrel
 
-      # @return [Fixnum] the file offset to the local relocation entries
+      # @return [Integer] the file offset to the local relocation entries
       attr_reader :locreloff
 
-      # @return [Fixnum] the number of local relocation entries
+      # @return [Integer] the number of local relocation entries
       attr_reader :nlocrel
 
       # @see MachOStructure::FORMAT
@@ -865,10 +869,10 @@ module MachO
     # A load command containing the offset and number of hints in the two-level
     # namespace lookup hints table. Corresponds to LC_TWOLEVEL_HINTS.
     class TwolevelHintsCommand < LoadCommand
-      # @return [Fixnum] the offset to the hint table
+      # @return [Integer] the offset to the hint table
       attr_reader :htoffset
 
-      # @return [Fixnum] the number of hints in the hint table
+      # @return [Integer] the number of hints in the hint table
       attr_reader :nhints
 
       # @return [TwolevelHintsTable]
@@ -898,8 +902,8 @@ module MachO
         attr_reader :hints
 
         # @param view [MachO::MachOView] the view into the current Mach-O
-        # @param htoffset [Fixnum] the offset of the hints table
-        # @param nhints [Fixnum] the number of two-level hints in the table
+        # @param htoffset [Integer] the offset of the hints table
+        # @param nhints [Integer] the number of two-level hints in the table
         # @api private
         def initialize(view, htoffset, nhints)
           format = Utils.specialize_format("L=#{nhints}", view.endianness)
@@ -911,13 +915,13 @@ module MachO
 
         # An individual two-level namespace lookup hint.
         class TwolevelHint
-          # @return [Fixnum] the index into the sub-images
+          # @return [Integer] the index into the sub-images
           attr_reader :isub_image
 
-          # @return [Fixnum] the index into the table of contents
+          # @return [Integer] the index into the table of contents
           attr_reader :itoc
 
-          # @param blob [Fixnum] the 32-bit number containing the lookup hint
+          # @param blob [Integer] the 32-bit number containing the lookup hint
           # @api private
           def initialize(blob)
             @isub_image = blob >> 24
@@ -930,7 +934,7 @@ module MachO
     # A load command containing the value of the original checksum for prebound
     # files, or zero. Corresponds to LC_PREBIND_CKSUM.
     class PrebindCksumCommand < LoadCommand
-      # @return [Fixnum] the checksum or 0
+      # @return [Integer] the checksum or 0
       attr_reader :cksum
 
       # @see MachOStructure::FORMAT
@@ -987,10 +991,10 @@ module MachO
     # LC_SEGMENT_SPLIT_INFO, LC_FUNCTION_STARTS, LC_DATA_IN_CODE,
     # LC_DYLIB_CODE_SIGN_DRS, and LC_LINKER_OPTIMIZATION_HINT.
     class LinkeditDataCommand < LoadCommand
-      # @return [Fixnum] offset to the data in the __LINKEDIT segment
+      # @return [Integer] offset to the data in the __LINKEDIT segment
       attr_reader :dataoff
 
-      # @return [Fixnum] size of the data in the __LINKEDIT segment
+      # @return [Integer] size of the data in the __LINKEDIT segment
       attr_reader :datasize
 
       # @see MachOStructure::FORMAT
@@ -1012,13 +1016,13 @@ module MachO
     # A load command representing the offset to and size of an encrypted
     # segment. Corresponds to LC_ENCRYPTION_INFO.
     class EncryptionInfoCommand < LoadCommand
-      # @return [Fixnum] the offset to the encrypted segment
+      # @return [Integer] the offset to the encrypted segment
       attr_reader :cryptoff
 
-      # @return [Fixnum] the size of the encrypted segment
+      # @return [Integer] the size of the encrypted segment
       attr_reader :cryptsize
 
-      # @return [Fixnum] the encryption system, or 0 if not encrypted yet
+      # @return [Integer] the encryption system, or 0 if not encrypted yet
       attr_reader :cryptid
 
       # @see MachOStructure::FORMAT
@@ -1041,16 +1045,16 @@ module MachO
     # A load command representing the offset to and size of an encrypted
     # segment. Corresponds to LC_ENCRYPTION_INFO_64.
     class EncryptionInfoCommand64 < LoadCommand
-      # @return [Fixnum] the offset to the encrypted segment
+      # @return [Integer] the offset to the encrypted segment
       attr_reader :cryptoff
 
-      # @return [Fixnum] the size of the encrypted segment
+      # @return [Integer] the size of the encrypted segment
       attr_reader :cryptsize
 
-      # @return [Fixnum] the encryption system, or 0 if not encrypted yet
+      # @return [Integer] the encryption system, or 0 if not encrypted yet
       attr_reader :cryptid
 
-      # @return [Fixnum] 64-bit padding value
+      # @return [Integer] 64-bit padding value
       attr_reader :pad
 
       # @see MachOStructure::FORMAT
@@ -1075,10 +1079,10 @@ module MachO
     # was built to run. Corresponds to LC_VERSION_MIN_MACOSX and
     # LC_VERSION_MIN_IPHONEOS.
     class VersionMinCommand < LoadCommand
-      # @return [Fixnum] the version X.Y.Z packed as x16.y8.z8
+      # @return [Integer] the version X.Y.Z packed as x16.y8.z8
       attr_reader :version
 
-      # @return [Fixnum] the SDK version X.Y.Z packed as x16.y8.z8
+      # @return [Integer] the SDK version X.Y.Z packed as x16.y8.z8
       attr_reader :sdk
 
       # @see MachOStructure::FORMAT
@@ -1119,38 +1123,129 @@ module MachO
       end
     end
 
+    # A load command containing the minimum OS version on which
+    # the binary was built for its platform.
+    # Corresponds to LC_BUILD_VERSION.
+    class BuildVersionCommand < LoadCommand
+      # @return [Integer]
+      attr_reader :platform
+
+      # @return [Integer] the minimum OS version X.Y.Z packed as x16.y8.z8
+      attr_reader :minos
+
+      # @return [Integer] the SDK version X.Y.Z packed as x16.y8.z8
+      attr_reader :sdk
+
+      # @return [ToolEntries] tool entries
+      attr_reader :tool_entries
+
+      # @see MachOStructure::FORMAT
+      # @api private
+      FORMAT = "L=6".freeze
+
+      # @see MachOStructure::SIZEOF
+      # @api private
+      SIZEOF = 24
+
+      # @api private
+      def initialize(view, cmd, cmdsize, platform, minos, sdk, ntools)
+        super(view, cmd, cmdsize)
+        @platform = platform
+        @minos = minos
+        @sdk = sdk
+        @tool_entries = ToolEntries.new(view, ntools)
+      end
+
+      # A representation of the tool versions exposed
+      # by a {BuildVersionCommand} (`LC_BUILD_VERSION`).
+      class ToolEntries
+        # @return [Array<Tool>] all tools
+        attr_reader :tools
+
+        # @param view [MachO::MachOView] the view into the current Mach-O
+        # @param ntools [Integer] the number of tools
+        # @api private
+        def initialize(view, ntools)
+          format = Utils.specialize_format("L=#{ntools * 2}", view.endianness)
+          raw_table = view.raw_data[view.offset + 24, ntools * 8]
+          blobs = raw_table.unpack(format).each_slice(2).to_a
+
+          @tools = blobs.map { |b| Tool.new(*b) }
+        end
+
+        # An individual tool.
+        class Tool
+          # @return [Integer] the enum for the tool
+          attr_reader :tool
+
+          # @return [Integer] the tool's version number
+          attr_reader :version
+
+          # @param tool 32-bit integer
+          # # @param version 32-bit integer
+          # @api private
+          def initialize(tool, version)
+            @tool = tool
+            @version = version
+          end
+        end
+      end
+
+      # A string representation of the binary's minimum OS version.
+      # @return [String] a string representing the minimum OS version.
+      def minos_string
+        binary = "%032b" % minos
+        segs = [
+          binary[0..15], binary[16..23], binary[24..31]
+        ].map { |s| s.to_i(2) }
+
+        segs.join(".")
+      end
+
+      # A string representation of the binary's SDK version.
+      # @return [String] a string representing the SDK version.
+      def sdk_string
+        binary = "%032b" % sdk
+        segs = [
+          binary[0..15], binary[16..23], binary[24..31]
+        ].map { |s| s.to_i(2) }
+
+        segs.join(".")
+      end
+    end
+
     # A load command containing the file offsets and sizes of the new
     # compressed form of the information dyld needs to load the image.
     # Corresponds to LC_DYLD_INFO and LC_DYLD_INFO_ONLY.
     class DyldInfoCommand < LoadCommand
-      # @return [Fixnum] the file offset to the rebase information
+      # @return [Integer] the file offset to the rebase information
       attr_reader :rebase_off
 
-      # @return [Fixnum] the size of the rebase information
+      # @return [Integer] the size of the rebase information
       attr_reader :rebase_size
 
-      # @return [Fixnum] the file offset to the binding information
+      # @return [Integer] the file offset to the binding information
       attr_reader :bind_off
 
-      # @return [Fixnum] the size of the binding information
+      # @return [Integer] the size of the binding information
       attr_reader :bind_size
 
-      # @return [Fixnum] the file offset to the weak binding information
+      # @return [Integer] the file offset to the weak binding information
       attr_reader :weak_bind_off
 
-      # @return [Fixnum] the size of the weak binding information
+      # @return [Integer] the size of the weak binding information
       attr_reader :weak_bind_size
 
-      # @return [Fixnum] the file offset to the lazy binding information
+      # @return [Integer] the file offset to the lazy binding information
       attr_reader :lazy_bind_off
 
-      # @return [Fixnum] the size of the lazy binding information
+      # @return [Integer] the size of the lazy binding information
       attr_reader :lazy_bind_size
 
-      # @return [Fixnum] the file offset to the export information
+      # @return [Integer] the file offset to the export information
       attr_reader :export_off
 
-      # @return [Fixnum] the size of the export information
+      # @return [Integer] the size of the export information
       attr_reader :export_size
 
       # @see MachOStructure::FORMAT
@@ -1182,7 +1277,7 @@ module MachO
     # A load command containing linker options embedded in object files.
     # Corresponds to LC_LINKER_OPTION.
     class LinkerOptionCommand < LoadCommand
-      # @return [Fixnum] the number of strings
+      # @return [Integer] the number of strings
       attr_reader :count
 
       # @see MachOStructure::FORMAT
@@ -1202,10 +1297,10 @@ module MachO
 
     # A load command specifying the offset of main(). Corresponds to LC_MAIN.
     class EntryPointCommand < LoadCommand
-      # @return [Fixnum] the file (__TEXT) offset of main()
+      # @return [Integer] the file (__TEXT) offset of main()
       attr_reader :entryoff
 
-      # @return [Fixnum] if not 0, the initial stack size.
+      # @return [Integer] if not 0, the initial stack size.
       attr_reader :stacksize
 
       # @see MachOStructure::FORMAT
@@ -1227,7 +1322,7 @@ module MachO
     # A load command specifying the version of the sources used to build the
     # binary. Corresponds to LC_SOURCE_VERSION.
     class SourceVersionCommand < LoadCommand
-      # @return [Fixnum] the version packed as a24.b10.c10.d10.e10
+      # @return [Integer] the version packed as a24.b10.c10.d10.e10
       attr_reader :version
 
       # @see MachOStructure::FORMAT
@@ -1260,10 +1355,10 @@ module MachO
     # An obsolete load command containing the offset and size of the (GNU style)
     # symbol table information. Corresponds to LC_SYMSEG.
     class SymsegCommand < LoadCommand
-      # @return [Fixnum] the offset to the symbol segment
+      # @return [Integer] the offset to the symbol segment
       attr_reader :offset
 
-      # @return [Fixnum] the size of the symbol segment in bytes
+      # @return [Integer] the size of the symbol segment in bytes
       attr_reader :size
 
       # @see MachOStructure::FORMAT
@@ -1301,7 +1396,7 @@ module MachO
       # @return [LCStr] the pathname of the file being loaded
       attr_reader :name
 
-      # @return [Fixnum] the virtual address being loaded at
+      # @return [Integer] the virtual address being loaded at
       attr_reader :header_addr
 
       # @see MachOStructure::FORMAT
@@ -1325,10 +1420,10 @@ module MachO
       # @return [LCStr] the library's target pathname
       attr_reader :name
 
-      # @return [Fixnum] the library's minor version number
+      # @return [Integer] the library's minor version number
       attr_reader :minor_version
 
-      # @return [Fixnum] the library's header address
+      # @return [Integer] the library's header address
       attr_reader :header_addr
 
       # @see MachOStructure::FORMAT
diff --git a/Library/Homebrew/vendor/macho/macho/macho_file.rb b/Library/Homebrew/vendor/macho/macho/macho_file.rb
index 7693ab0dd3..f8c0bd1c57 100644
--- a/Library/Homebrew/vendor/macho/macho/macho_file.rb
+++ b/Library/Homebrew/vendor/macho/macho/macho_file.rb
@@ -134,7 +134,7 @@ module MachO
     alias [] command
 
     # Inserts a load command at the given offset.
-    # @param offset [Fixnum] the offset to insert at
+    # @param offset [Integer] the offset to insert at
     # @param lc [LoadCommands::LoadCommand] the load command to insert
     # @param options [Hash]
     # @option options [Boolean] :repopulate (true) whether or not to repopulate
@@ -404,11 +404,8 @@ module MachO
     # @raise [MachOError] if the instance was initialized without a file
     # @note Overwrites all data in the file!
     def write!
-      if @filename.nil?
-        raise MachOError, "cannot write to a default file when initialized from a binary string"
-      else
-        File.open(@filename, "wb") { |f| f.write(@raw_data) }
-      end
+      raise MachOError, "no initial file to write to" if @filename.nil?
+      File.open(@filename, "wb") { |f| f.write(@raw_data) }
     end
 
     private
@@ -434,7 +431,7 @@ module MachO
     end
 
     # Read just the file's magic number and check its validity.
-    # @return [Fixnum] the magic
+    # @return [Integer] the magic
     # @raise [MagicError] if the magic is not valid Mach-O magic
     # @raise [FatBinaryError] if the magic is for a Fat file
     # @api private
@@ -450,7 +447,7 @@ module MachO
     end
 
     # Check the file's CPU type.
-    # @param cputype [Fixnum] the CPU type
+    # @param cputype [Integer] the CPU type
     # @raise [CPUTypeError] if the CPU type is unknown
     # @api private
     def check_cputype(cputype)
@@ -458,7 +455,7 @@ module MachO
     end
 
     # Check the file's CPU type/subtype pair.
-    # @param cpusubtype [Fixnum] the CPU subtype
+    # @param cpusubtype [Integer] the CPU subtype
     # @raise [CPUSubtypeError] if the CPU sub-type is unknown
     # @api private
     def check_cpusubtype(cputype, cpusubtype)
@@ -467,7 +464,7 @@ module MachO
     end
 
     # Check the file's type.
-    # @param filetype [Fixnum] the file type
+    # @param filetype [Integer] the file type
     # @raise [FiletypeError] if the file type is unknown
     # @api private
     def check_filetype(filetype)
@@ -503,7 +500,7 @@ module MachO
     end
 
     # The low file offset (offset to first section data).
-    # @return [Fixnum] the offset
+    # @return [Integer] the offset
     # @api private
     def low_fileoff
       offset = @raw_data.size
@@ -523,7 +520,7 @@ module MachO
     end
 
     # Updates the number of load commands in the raw data.
-    # @param ncmds [Fixnum] the new number of commands
+    # @param ncmds [Integer] the new number of commands
     # @return [void]
     # @api private
     def update_ncmds(ncmds)
@@ -533,7 +530,7 @@ module MachO
     end
 
     # Updates the size of all load commands in the raw data.
-    # @param size [Fixnum] the new size, in bytes
+    # @param size [Integer] the new size, in bytes
     # @return [void]
     # @api private
     def update_sizeofcmds(size)
diff --git a/Library/Homebrew/vendor/macho/macho/sections.rb b/Library/Homebrew/vendor/macho/macho/sections.rb
index 1e69e0b61c..7e96888dbb 100644
--- a/Library/Homebrew/vendor/macho/macho/sections.rb
+++ b/Library/Homebrew/vendor/macho/macho/sections.rb
@@ -76,25 +76,25 @@ module MachO
       #  pad bytes
       attr_reader :segname
 
-      # @return [Fixnum] the memory address of the section
+      # @return [Integer] the memory address of the section
       attr_reader :addr
 
-      # @return [Fixnum] the size, in bytes, of the section
+      # @return [Integer] the size, in bytes, of the section
       attr_reader :size
 
-      # @return [Fixnum] the file offset of the section
+      # @return [Integer] the file offset of the section
       attr_reader :offset
 
-      # @return [Fixnum] the section alignment (power of 2) of the section
+      # @return [Integer] the section alignment (power of 2) of the section
       attr_reader :align
 
-      # @return [Fixnum] the file offset of the section's relocation entries
+      # @return [Integer] the file offset of the section's relocation entries
       attr_reader :reloff
 
-      # @return [Fixnum] the number of relocation entries
+      # @return [Integer] the number of relocation entries
       attr_reader :nreloc
 
-      # @return [Fixnum] flags for type and attributes of the section
+      # @return [Integer] flags for type and attributes of the section
       attr_reader :flags
 
       # @return [void] reserved (for offset or index)
diff --git a/Library/Homebrew/vendor/macho/macho/structure.rb b/Library/Homebrew/vendor/macho/macho/structure.rb
index bac5342d4f..792aeeeac1 100644
--- a/Library/Homebrew/vendor/macho/macho/structure.rb
+++ b/Library/Homebrew/vendor/macho/macho/structure.rb
@@ -8,11 +8,11 @@ module MachO
     FORMAT = "".freeze
 
     # The size of the data structure, in bytes.
-    # @return [Fixnum] the size, in bytes
+    # @return [Integer] the size, in bytes
     # @api private
     SIZEOF = 0
 
-    # @return [Fixnum] the size, in bytes, of the represented structure.
+    # @return [Integer] the size, in bytes, of the represented structure.
     def self.bytesize
       self::SIZEOF
     end
diff --git a/Library/Homebrew/vendor/macho/macho/tools.rb b/Library/Homebrew/vendor/macho/macho/tools.rb
index b49626d9d2..a786b3bf56 100644
--- a/Library/Homebrew/vendor/macho/macho/tools.rb
+++ b/Library/Homebrew/vendor/macho/macho/tools.rb
@@ -88,7 +88,7 @@ module MachO
 
     # Merge multiple Mach-Os into one universal (Fat) binary.
     # @param filename [String] the fat binary to create
-    # @param files [Array<MachO::MachOFile, MachO::FatFile>] the files to merge
+    # @param files [Array<String>] the files to merge
     # @return [void]
     def self.merge_machos(filename, *files)
       machos = files.map do |file|
diff --git a/Library/Homebrew/vendor/macho/macho/utils.rb b/Library/Homebrew/vendor/macho/macho/utils.rb
index ecfc8390be..3bc81df478 100644
--- a/Library/Homebrew/vendor/macho/macho/utils.rb
+++ b/Library/Homebrew/vendor/macho/macho/utils.rb
@@ -2,9 +2,9 @@ module MachO
   # A collection of utility functions used throughout ruby-macho.
   module Utils
     # Rounds a value to the next multiple of the given round.
-    # @param value [Fixnum] the number being rounded
-    # @param round [Fixnum] the number being rounded with
-    # @return [Fixnum] the rounded value
+    # @param value [Integer] the number being rounded
+    # @param round [Integer] the number being rounded with
+    # @return [Integer] the rounded value
     # @see http://www.opensource.apple.com/source/cctools/cctools-870/libstuff/rnd.c
     def self.round(value, round)
       round -= 1
@@ -15,9 +15,9 @@ module MachO
 
     # Returns the number of bytes needed to pad the given size to the given
     #  alignment.
-    # @param size [Fixnum] the unpadded size
-    # @param alignment [Fixnum] the number to alignment the size with
-    # @return [Fixnum] the number of pad bytes required
+    # @param size [Integer] the unpadded size
+    # @param alignment [Integer] the number to alignment the size with
+    # @return [Integer] the number of pad bytes required
     def self.padding_for(size, alignment)
       round(size, alignment) - size
     end
@@ -33,9 +33,9 @@ module MachO
     end
 
     # Packs tagged strings into an aligned payload.
-    # @param fixed_offset [Fixnum] the baseline offset for the first packed
+    # @param fixed_offset [Integer] the baseline offset for the first packed
     #  string
-    # @param alignment [Fixnum] the alignment value to use for packing
+    # @param alignment [Integer] the alignment value to use for packing
     # @param strings [Hash] the labeled strings to pack
     # @return [Array<String, Hash>] the packed string and labeled offsets
     def self.pack_strings(fixed_offset, alignment, strings = {})
@@ -55,42 +55,42 @@ module MachO
     end
 
     # Compares the given number to valid Mach-O magic numbers.
-    # @param num [Fixnum] the number being checked
+    # @param num [Integer] the number being checked
     # @return [Boolean] whether `num` is a valid Mach-O magic number
     def self.magic?(num)
       Headers::MH_MAGICS.key?(num)
     end
 
     # Compares the given number to valid Fat magic numbers.
-    # @param num [Fixnum] the number being checked
+    # @param num [Integer] the number being checked
     # @return [Boolean] whether `num` is a valid Fat magic number
     def self.fat_magic?(num)
       num == Headers::FAT_MAGIC
     end
 
     # Compares the given number to valid 32-bit Mach-O magic numbers.
-    # @param num [Fixnum] the number being checked
+    # @param num [Integer] the number being checked
     # @return [Boolean] whether `num` is a valid 32-bit magic number
     def self.magic32?(num)
       num == Headers::MH_MAGIC || num == Headers::MH_CIGAM
     end
 
     # Compares the given number to valid 64-bit Mach-O magic numbers.
-    # @param num [Fixnum] the number being checked
+    # @param num [Integer] the number being checked
     # @return [Boolean] whether `num` is a valid 64-bit magic number
     def self.magic64?(num)
       num == Headers::MH_MAGIC_64 || num == Headers::MH_CIGAM_64
     end
 
     # Compares the given number to valid little-endian magic numbers.
-    # @param num [Fixnum] the number being checked
+    # @param num [Integer] the number being checked
     # @return [Boolean] whether `num` is a valid little-endian magic number
     def self.little_magic?(num)
       num == Headers::MH_CIGAM || num == Headers::MH_CIGAM_64
     end
 
     # Compares the given number to valid big-endian magic numbers.
-    # @param num [Fixnum] the number being checked
+    # @param num [Integer] the number being checked
     # @return [Boolean] whether `num` is a valid big-endian magic number
     def self.big_magic?(num)
       num == Headers::MH_CIGAM || num == Headers::MH_CIGAM_64
diff --git a/Library/Homebrew/vendor/macho/macho/view.rb b/Library/Homebrew/vendor/macho/macho/view.rb
index 9586e73bee..c03c2580e8 100644
--- a/Library/Homebrew/vendor/macho/macho/view.rb
+++ b/Library/Homebrew/vendor/macho/macho/view.rb
@@ -7,13 +7,13 @@ module MachO
     # @return [Symbol] the endianness of the data (`:big` or `:little`)
     attr_reader :endianness
 
-    # @return [Fixnum] the offset of the relevant data (in {#raw_data})
+    # @return [Integer] the offset of the relevant data (in {#raw_data})
     attr_reader :offset
 
     # Creates a new MachOView.
     # @param raw_data [String] the raw Mach-O data
     # @param endianness [Symbol] the endianness of the data
-    # @param offset [Fixnum] the offset of the relevant data
+    # @param offset [Integer] the offset of the relevant data
     def initialize(raw_data, endianness, offset)
       @raw_data = raw_data
       @endianness = endianness