Io installation error

gistfile1.txt

~ $ brew install io --HEAD -v
==> Cloning https://github.com/stevedekorte/io.git
Updating /Users/aku/Library/Caches/Homebrew/io--git
git remote set-url origin https://github.com/stevedekorte/io.git
git fetch origin
git reset --hard origin/master
HEAD is now at fb1a114 Fix IoLanguageKit dylib issues
git checkout-index -a -f --prefix=/private/tmp/homebrew-io-HEAD-QEUJ/
==> Patching
/usr/bin/patch -f -p1 -i 001-homebrew.diff
patching file addons/Image/CMakeLists.txt
Warning: IO --HEAD usually doesn't build!
==> cmake .. -DCMAKE_INSTALL_PREFIX='/usr/local/Cellar/io/HEAD' -DCMAKE_BUILD_TYPE=None -Wno-dev
cmake .. -DCMAKE_INSTALL_PREFIX='/usr/local/Cellar/io/HEAD' -DCMAKE_BUILD_TYPE=None -Wno-dev 
-- The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Checking whether C compiler has -isysroot
-- Checking whether C compiler has -isysroot - yes
-- Checking whether C compiler supports OSX deployment target flag
-- Checking whether C compiler supports OSX deployment target flag - yes
-- Check for working C compiler: /usr/bin/llvm-gcc
-- Check for working C compiler: /usr/bin/llvm-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Checking whether CXX compiler has -isysroot
-- Checking whether CXX compiler has -isysroot - yes
-- Checking whether CXX compiler supports OSX deployment target flag
-- Checking whether CXX compiler supports OSX deployment target flag - yes
-- Check for working CXX compiler: /usr/bin/llvm-g++
-- Check for working CXX compiler: /usr/bin/llvm-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Configuration set to: None
-- Found AsyncRequest headers: /usr/include/aio.h
-- GMP libs: /usr/local/lib/libgmp.dylib /usr/local/lib/libgmpxx.dylib
-- Found GMP: /usr/local/include 
-- checking for one of the modules 'libffi'
-- Could NOT find FFI (missing:  FFI_INCLUDE_DIRS FFI_LIBRARIES) 
-- checking for one of the modules 'glib-2.0'
-- Found GLib2: glib-2.0;intl /usr/local/Cellar/glib/2.28.8/include/glib-2.0;/usr/local/Cellar/glib/2.28.8/lib/glib-2.0/include;/usr/local/Cellar/gettext/0.18.1.1/include;/usr/local/Cellar/glib/2.28.8/include
-- Looking for include files HAVE_GLIB_GREGEX_H
-- Looking for include files HAVE_GLIB_GREGEX_H - found
-- Found Pango_1_0: /usr/local/lib/libpango-1.0.dylib
-- checking for one of the modules 'cairo'
-- Found Curses: /usr/lib/libcurses.dylib 
-- Found EDIT: /usr/lib/libedit.dylib
-- Found Fnmatch headers: /usr/include/fnmatch.h
-- Found Freetype: /usr/X11R6/lib/libfreetype.dylib 
-- Found GLFW: /usr/local/lib/libglfw.a 
-- Found ZLIB: /usr/lib/libz.dylib
-- Found PNG: /usr/X11R6/lib/libpng.dylib 
-- Found TIFF: /usr/local/lib/libtiff.dylib 
-- Found JPEG: /usr/local/lib/libjpeg.dylib 
-- Found Iconv: /usr/lib/libiconv.dylib
-- checking for module 'libxml-2.0'
--   found libxml-2.0, version 2.7.3
-- Found LibXml2: /usr/lib/libxml2.dylib 
-- Libmemcached was not found.
-- Found PythonLibs: /usr/lib/libpython2.7.dylib 
-- Found Readline: /usr/lib/libreadline.dylib
-- checking for module 'libpcre'
--   found libpcre, version 8.13
-- Found PCRE: /usr/local/Cellar/pcre/8.13/include 
-- checking for one of the modules 'sqlite>=3;sqlite3'
-- Found OpenSSL: /usr/lib/libssl.dylib;/usr/lib/libcrypto.dylib 
-- Found Syslog headers: /usr/include/syslog.h
-- Looking for include files CMAKE_HAVE_PTHREAD_H
-- Looking for include files CMAKE_HAVE_PTHREAD_H - found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE 
-- Found TokyoCabinet: /usr/local/lib/libtokyocabinet.dylib
-- Found Yajl: /usr/local/lib/libyajl.dylib
-- Found ZLIB: /usr/lib/libz.dylib
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/homebrew-io-HEAD-QEUJ/io-build
==> make install
make install 
Scanning dependencies of target copy_basekit_headers
[  0%] Copying files: /tmp/homebrew-io-HEAD-QEUJ//tmp/homebrew-io-HEAD-QEUJ/libs/basekit/source/*.h to /tmp/homebrew-io-HEAD-QEUJ/io-build/_build/headers
[  0%] Built target copy_basekit_headers
Scanning dependencies of target copy_coroutine_headers
[  0%] Copying files: /tmp/homebrew-io-HEAD-QEUJ//tmp/homebrew-io-HEAD-QEUJ/libs/coroutine/source/*.h to /tmp/homebrew-io-HEAD-QEUJ/io-build/_build/headers
[  1%] Built target copy_coroutine_headers
Scanning dependencies of target copy_garbagecollector_headers
[  1%] Copying files: /tmp/homebrew-io-HEAD-QEUJ//tmp/homebrew-io-HEAD-QEUJ/libs/garbagecollector/source/*.h to /tmp/homebrew-io-HEAD-QEUJ/io-build/_build/headers
[  1%] Built target copy_garbagecollector_headers
Scanning dependencies of target copy_iovm_headers
[  1%] Copying files: /tmp/homebrew-io-HEAD-QEUJ//tmp/homebrew-io-HEAD-QEUJ/libs/iovm/source/*.h to /tmp/homebrew-io-HEAD-QEUJ/io-build/_build/headers
[  1%] Built target copy_iovm_headers
Scanning dependencies of target io2c
[  1%] Building C object libs/iovm/tools/CMakeFiles/io2c.dir/io2c.c.o
Linking C executable ../../../_build/binaries/io2c
[  1%] Built target io2c
Scanning dependencies of target coroutine
[  1%] Building C object libs/coroutine/CMakeFiles/coroutine.dir/source/context.c.o
[  2%] Building C object libs/coroutine/CMakeFiles/coroutine.dir/source/Coro.c.o
[  2%] Building C object libs/coroutine/CMakeFiles/coroutine.dir/source/asm.S.o
Linking C shared library ../../_build/dll/libcoroutine.dylib
[  2%] Built target coroutine
Scanning dependencies of target basekit
[  2%] Building C object libs/basekit/CMakeFiles/basekit.dir/source/BStream.c.o
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[  3%] Building C object libs/basekit/CMakeFiles/basekit.dir/source/CHash.c.o
[  4%] Building C object libs/basekit/CMakeFiles/basekit.dir/source/Common.c.o
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[  8%] Building C object libs/basekit/CMakeFiles/basekit.dir/source/RandomGen.c.o
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[ 12%] Building C object libs/basekit/CMakeFiles/basekit.dir/source/utf_convert.c.o
Linking C shared library ../../_build/dll/libbasekit.dylib
[ 12%] Built target basekit
Scanning dependencies of target garbagecollector
[ 12%] Building C object libs/garbagecollector/CMakeFiles/garbagecollector.dir/source/Collector.c.o
[ 13%] Building C object libs/garbagecollector/CMakeFiles/garbagecollector.dir/source/CollectorMarker.c.o
Linking C shared library ../../_build/dll/libgarbagecollector.dylib
[ 13%] Built target garbagecollector
[ 14%] Generating ../../../libs/iovm/source/IoVMInit.c
Scanning dependencies of target iovmall
[ 15%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoBlock.c.o
[ 15%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoCall.c.o
[ 15%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoCFunction.c.o
[ 16%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoCollector.c.o
[ 16%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoCompiler.c.o
[ 16%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoCoroutine.c.o
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[ 18%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoFile_stat.c.o
[ 19%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoLexer.c.o
[ 19%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoList.c.o
[ 19%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoMap.c.o
[ 20%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoMessage.c.o
[ 20%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoMessage_opShuffle.c.o
[ 20%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoMessage_parser.c.o
[ 20%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoNumber.c.o
[ 21%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoObject.c.o
[ 21%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoObject_flow.c.o
[ 21%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoProfiler.c.o
[ 22%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoSandbox.c.o
[ 22%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoSeq.c.o
[ 22%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoSeq_immutable.c.o
[ 22%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoSeq_mutable.c.o
[ 23%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoSeq_vector.c.o
[ 23%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoState.c.o
[ 23%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoState_callbacks.c.o
[ 24%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoState_coros.c.o
[ 24%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoState_debug.c.o
[ 24%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoState_eval.c.o
[ 24%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoState_exceptions.c.o
[ 25%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoState_symbols.c.o
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[ 26%] Building C object libs/iovm/CMakeFiles/iovmall.dir/source/IoVMInit.c.o
Linking C shared library ../../_build/dll/libiovmall.dylib
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[ 49%] Building C object libs/CMakeFiles/iovmall_static.dir/iovm/source/IoWeakLink.c.o
[ 49%] Building C object libs/CMakeFiles/iovmall_static.dir/iovm/source/PHash.c.o
[ 49%] Building C object libs/CMakeFiles/iovmall_static.dir/iovm/source/IoVMInit.c.o
Linking C static library ../_build/lib/libiovmall_static.a
[ 50%] Built target iovmall_static
Scanning dependencies of target io
[ 50%] Building C object tools/CMakeFiles/io.dir/source/main.c.o
Linking C executable ../_build/binaries/io
[ 50%] Built target io
Scanning dependencies of target io_static
[ 50%] Building C object tools/CMakeFiles/io_static.dir/source/main.c.o
Linking C executable ../_build/binaries/io_static
[ 50%] Built target io_static
[ 50%] Generating ../../../addons/AsyncRequest/source/IoAsyncRequestInit.c
Scanning dependencies of target IoAsyncRequest
[ 50%] Building C object addons/AsyncRequest/CMakeFiles/IoAsyncRequest.dir/source/IoAsyncRequest.c.o
[ 50%] Building C object addons/AsyncRequest/CMakeFiles/IoAsyncRequest.dir/source/IoAsyncRequestInit.c.o
Linking C shared library _build/dll/libIoAsyncRequest.dylib
[ 50%] Built target IoAsyncRequest
[ 50%] Generating ../../../addons/BigNum/source/IoBigNumInit.c
Scanning dependencies of target IoBigNum
[ 51%] Building C object addons/BigNum/CMakeFiles/IoBigNum.dir/source/IoBigNum.c.o
[ 51%] Building C object addons/BigNum/CMakeFiles/IoBigNum.dir/source/IoBigNumInit.c.o
Linking C shared library _build/dll/libIoBigNum.dylib
[ 51%] Built target IoBigNum
[ 52%] Generating ../../../addons/Bitly/source/IoBitlyInit.c
Scanning dependencies of target IoBitly
[ 52%] Building C object addons/Bitly/CMakeFiles/IoBitly.dir/source/IoBitlyInit.c.o
Linking C shared library _build/dll/libIoBitly.dylib
[ 52%] Built target IoBitly
[ 52%] Generating ../../../addons/Blowfish/source/IoBlowfishInit.c
Scanning dependencies of target IoBlowfish
[ 52%] Building C object addons/Blowfish/CMakeFiles/IoBlowfish.dir/source/blowfish.c.o
[ 52%] Building C object addons/Blowfish/CMakeFiles/IoBlowfish.dir/source/IoBlowfish.c.o
[ 53%] Building C object addons/Blowfish/CMakeFiles/IoBlowfish.dir/source/IoBlowfishInit.c.o
Linking C shared library _build/dll/libIoBlowfish.dylib
[ 53%] Built target IoBlowfish
[ 54%] Generating ../../../addons/Box/source/IoBoxInit.c
Scanning dependencies of target IoBox
[ 54%] Building C object addons/Box/CMakeFiles/IoBox.dir/source/IoBox.c.o
[ 54%] Building C object addons/Box/CMakeFiles/IoBox.dir/source/IoBoxInit.c.o
Linking C shared library _build/dll/libIoBox.dylib
[ 54%] Built target IoBox
[ 54%] Generating ../../../addons/CGI/source/IoCGIInit.c
Scanning dependencies of target IoCGI
[ 54%] Building C object addons/CGI/CMakeFiles/IoCGI.dir/source/IoCGIInit.c.o
Linking C shared library _build/dll/libIoCGI.dylib
[ 54%] Built target IoCGI
[ 54%] Generating ../../../addons/ContinuedFraction/source/IoContinuedFractionInit.c
Scanning dependencies of target IoContinuedFraction
[ 55%] Building C object addons/ContinuedFraction/CMakeFiles/IoContinuedFraction.dir/source/IoContinuedFractionInit.c.o
Linking C shared library _build/dll/libIoContinuedFraction.dylib
[ 55%] Built target IoContinuedFraction
[ 56%] Generating ../../../addons/Curses/source/IoCursesInit.c
Scanning dependencies of target IoCurses
[ 56%] Building C object addons/Curses/CMakeFiles/IoCurses.dir/source/IoCurses.c.o
[ 56%] Building C object addons/Curses/CMakeFiles/IoCurses.dir/source/IoCursesInit.c.o
Linking C shared library _build/dll/libIoCurses.dylib
[ 56%] Built target IoCurses
[ 56%] Generating ../../../addons/DistributedObjects/source/IoDistributedObjectsInit.c
Scanning dependencies of target IoDistributedObjects
[ 56%] Building C object addons/DistributedObjects/CMakeFiles/IoDistributedObjects.dir/source/IoDistributedObjectsInit.c.o
Linking C shared library _build/dll/libIoDistributedObjects.dylib
[ 56%] Built target IoDistributedObjects
[ 56%] Generating ../../../addons/EditLine/source/IoEditLineInit.c
Scanning dependencies of target IoEditLine
[ 57%] Building C object addons/EditLine/CMakeFiles/IoEditLine.dir/source/IoEditLine.c.o
[ 57%] Building C object addons/EditLine/CMakeFiles/IoEditLine.dir/source/IoEditLineInit.c.o
Linking C shared library _build/dll/libIoEditLine.dylib
[ 57%] Built target IoEditLine
[ 58%] Generating ../../../addons/Facebook/source/IoFacebookInit.c
Scanning dependencies of target IoFacebook
[ 58%] Building C object addons/Facebook/CMakeFiles/IoFacebook.dir/source/IoFacebookInit.c.o
Linking C shared library _build/dll/libIoFacebook.dylib
[ 58%] Built target IoFacebook
[ 58%] Generating ../../../addons/Flux/source/IoFluxInit.c
Scanning dependencies of target IoFlux
[ 58%] Building C object addons/Flux/CMakeFiles/IoFlux.dir/source/IoFluxInit.c.o
Linking C shared library _build/dll/libIoFlux.dylib
[ 58%] Built target IoFlux
[ 58%] Generating ../../../addons/Fnmatch/source/IoFnmatchInit.c
Scanning dependencies of target IoFnmatch
[ 59%] Building C object addons/Fnmatch/CMakeFiles/IoFnmatch.dir/source/IoFnmatch.c.o
[ 59%] Building C object addons/Fnmatch/CMakeFiles/IoFnmatch.dir/source/IoFnmatchInit.c.o
Linking C shared library _build/dll/libIoFnmatch.dylib
[ 59%] Built target IoFnmatch
[ 60%] Generating ../../../addons/Font/source/IoFontInit.c
Scanning dependencies of target IoFont
[ 60%] Building C object addons/Font/CMakeFiles/IoFont.dir/source/FreeTypeErrorCodes.c.o
[ 61%] Building C object addons/Font/CMakeFiles/IoFont.dir/source/GLFont.c.o
[ 61%] Building C object addons/Font/CMakeFiles/IoFont.dir/source/IoFont.c.o
[ 61%] Building C object addons/Font/CMakeFiles/IoFont.dir/source/IoFontInit.c.o
Linking C shared library _build/dll/libIoFont.dylib
[ 61%] Built target IoFont
[ 61%] Generating ../../../addons/GLFW/source/IoGLFWInit.c
Scanning dependencies of target IoGLFW
[ 61%] Building C object addons/GLFW/CMakeFiles/IoGLFW.dir/source/IoGLFW.c.o
[ 61%] Building C object addons/GLFW/CMakeFiles/IoGLFW.dir/source/IoGLFWInit.c.o
Linking C shared library _build/dll/libIoGLFW.dylib
[ 61%] Built target IoGLFW
[ 61%] Generating ../../../addons/GoogleSearch/source/IoGoogleSearchInit.c
Scanning dependencies of target IoGoogleSearch
[ 62%] Building C object addons/GoogleSearch/CMakeFiles/IoGoogleSearch.dir/source/IoGoogleSearchInit.c.o
Linking C shared library _build/dll/libIoGoogleSearch.dylib
[ 62%] Built target IoGoogleSearch
[ 63%] Generating ../../../addons/HttpClient/source/IoHttpClientInit.c
Scanning dependencies of target IoHttpClient
[ 63%] Building C object addons/HttpClient/CMakeFiles/IoHttpClient.dir/source/IoHttpClientInit.c.o
Linking C shared library _build/dll/libIoHttpClient.dylib
[ 63%] Built target IoHttpClient
[ 64%] Generating ../../../addons/Image/source/IoImageInit.c
Scanning dependencies of target IoImage
[ 64%] Building C object addons/Image/CMakeFiles/IoImage.dir/source/Image.c.o
[ 64%] Building C object addons/Image/CMakeFiles/IoImage.dir/source/JPGImage.c.o
[ 64%] Building C object addons/Image/CMakeFiles/IoImage.dir/source/PNGImage.c.o
[ 65%] Building C object addons/Image/CMakeFiles/IoImage.dir/source/TIFFImage.c.o
[ 65%] Building C object addons/Image/CMakeFiles/IoImage.dir/source/IoImage.c.o
[ 65%] Building C object addons/Image/CMakeFiles/IoImage.dir/source/IoImageInit.c.o
Linking C shared library _build/dll/libIoImage.dylib
[ 65%] Built target IoImage
[ 65%] Generating ../../../addons/LZO/source/IoLZOInit.c
Scanning dependencies of target IoLZO
[ 65%] Building C object addons/LZO/CMakeFiles/IoLZO.dir/source/IoLZODecoder.c.o
[ 65%] Building C object addons/LZO/CMakeFiles/IoLZO.dir/source/IoLZOEncoder.c.o
[ 65%] Building C object addons/LZO/CMakeFiles/IoLZO.dir/source/minilzo.c.o
[ 66%] Building C object addons/LZO/CMakeFiles/IoLZO.dir/source/IoLZOInit.c.o
Linking C shared library _build/dll/libIoLZO.dylib
[ 66%] Built target IoLZO
[ 66%] Generating ../../../addons/Libxml2/source/IoLibxml2Init.c
Scanning dependencies of target IoLibxml2
[ 66%] Building C object addons/Libxml2/CMakeFiles/IoLibxml2.dir/source/IoXmlReader.c.o
[ 67%] Building C object addons/Libxml2/CMakeFiles/IoLibxml2.dir/source/IoXmlWriter.c.o
[ 67%] Building C object addons/Libxml2/CMakeFiles/IoLibxml2.dir/source/IoLibxml2Init.c.o
Linking C shared library _build/dll/libIoLibxml2.dylib
[ 67%] Built target IoLibxml2
[ 67%] Generating ../../../addons/Loki/source/IoLokiInit.c
Scanning dependencies of target IoLoki
[ 67%] Building C object addons/Loki/CMakeFiles/IoLoki.dir/source/IoLinker.c.o
[ 68%] Building C object addons/Loki/CMakeFiles/IoLoki.dir/source/IoLokiInit.c.o
Linking C shared library _build/dll/libIoLoki.dylib
[ 68%] Built target IoLoki
[ 68%] Generating ../../../addons/MD5/source/IoMD5Init.c
Scanning dependencies of target IoMD5
[ 68%] Building C object addons/MD5/CMakeFiles/IoMD5.dir/source/md5.c.o
[ 69%] Building C object addons/MD5/CMakeFiles/IoMD5.dir/source/IoMD5.c.o
[ 69%] Building C object addons/MD5/CMakeFiles/IoMD5.dir/source/IoMD5Init.c.o
Linking C shared library _build/dll/libIoMD5.dylib
[ 69%] Built target IoMD5
[ 70%] Generating ../../../addons/NotificationCenter/source/IoNotificationCenterInit.c
Scanning dependencies of target IoNotificationCenter
[ 70%] Building C object addons/NotificationCenter/CMakeFiles/IoNotificationCenter.dir/source/IoNotificationCenterInit.c.o
Linking C shared library _build/dll/libIoNotificationCenter.dylib
[ 70%] Built target IoNotificationCenter
[ 71%] Generating ../../../addons/Yajl/source/IoYajlInit.c
Scanning dependencies of target IoYajl
[ 71%] Building C object addons/Yajl/CMakeFiles/IoYajl.dir/source/IoYajl.c.o
[ 71%] Building C object addons/Yajl/CMakeFiles/IoYajl.dir/source/IoYajlGen.c.o
[ 71%] Building C object addons/Yajl/CMakeFiles/IoYajl.dir/source/IoYajlInit.c.o
Linking C shared library _build/dll/libIoYajl.dylib
[ 71%] Built target IoYajl
[ 71%] Generating ../../../addons/SystemCall/source/IoSystemCallInit.c
Scanning dependencies of target IoSystemCall
[ 72%] Building C object addons/SystemCall/CMakeFiles/IoSystemCall.dir/source/callsystem.c.o
[ 72%] Building C object addons/SystemCall/CMakeFiles/IoSystemCall.dir/source/IoSystemCall.c.o
[ 72%] Building C object addons/SystemCall/CMakeFiles/IoSystemCall.dir/source/IoSystemCallInit.c.o
Linking C shared library _build/dll/libIoSystemCall.dylib
[ 72%] Built target IoSystemCall
Scanning dependencies of target IoObjcBridge
[ 72%] Building CXX object addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/source/CHash_ObjcBridgeFunctions.m.o
[ 72%] Building CXX object addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/source/Io2Objc.m.o
[ 73%] Building CXX object addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/source/IoObjcBridge.m.o
[ 73%] Building CXX object addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/source/IoObjcBridgeInit.m.o
[ 73%] Building CXX object addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/source/Objc2Io.m.o
[ 73%] Building CXX object addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/source/ObjcSubclass.m.o
[ 74%] Building CXX object addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/source/Runtime.m.o
[ 74%] Building CXX object addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/source/IoLanguage.m.o
Linking CXX shared library _build/dll/libIoObjcBridge.dylib
ld: library not found for -lIoSocket
collect2: ld returned 1 exit status
make[2]: *** [addons/ObjcBridge/_build/dll/libIoObjcBridge.dylib] Error 1
make[1]: *** [addons/ObjcBridge/CMakeFiles/IoObjcBridge.dir/all] Error 2
make: *** [all] Error 2
==> Exit Status: 2
http://github.com/mxcl/homebrew/blob/master/Library/Formula/io.rb#L36
==> Environment
HOMEBREW_VERSION: 0.8
HEAD: 6beb61d9e3e26456682e962ba09bd324b85047bf
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_REPOSITORY: /usr/local
HOMEBREW_LIBRARY_PATH: /usr/local/Library/Homebrew
Hardware: dual-core 64-bit penryn
OS X: 10.7.1
Kernel Architecture: x86_64
Ruby: 1.8.7-249
/usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
Xcode: 4.1
GCC-4.0: N/A 
GCC-4.2: build 5666 
LLVM: build 2335 
MacPorts or Fink? false
X11 installed? true
==> Build Flags
CC: /usr/bin/llvm-gcc => /usr/llvm-gcc-4.2/bin/llvm-gcc-4.2
CXX: /usr/bin/llvm-g++ => /usr/llvm-gcc-4.2/bin/llvm-g++-4.2
LD: /usr/bin/llvm-gcc => /usr/llvm-gcc-4.2/bin/llvm-gcc-4.2
CFLAGS: -O3 -march=core2 -msse4.1 -w -pipe
CXXFLAGS: -O3 -march=core2 -msse4.1 -w -pipe

Error: Failed executing: make install 
These existing issues may help you:
    https://github.com/mxcl/homebrew/issues/5603
    https://github.com/mxcl/homebrew/issues/7583
Otherwise, please report the bug:
    https://github.com/mxcl/homebrew/wiki/checklist-before-filing-a-new-issue