libvpx fails to configure with cerbero git master.

Using Xcode 7.0.1 and building for ios-universal.  This version of Xcode comes packaged with an SDK for OSX El Capitan (10.11).  Currently running OSX Yosemite (10.10). 

~snip~

[(39/84) libvpx -> fetch ]
-----> Step done
[(39/84) libvpx -> extract ]
-----> Step done
[(39/84) libvpx -> configure ]
  enabling pic
  disabling unit_tests
  enabling postproc
  enabling multi_res_encoding
  enabling vp9_temporal_denoising
  enabling vp9_postproc
  disabling examples
Configuring selected codecs
  enabling vp8_encoder
  enabling vp8_decoder
  enabling vp9_encoder
  enabling vp9_decoder
Configuring for target 'x86_64-iphonesimulator-gcc'
  enabling x86_64
  enabling runtime_cpu_detect
  enabling mmx
  enabling sse
  enabling sse2
  enabling sse3
  enabling ssse3
  enabling sse4_1
  enabling avx
  enabling avx2
  using yasm
  enabling use_x86inc
  enabling webm_io
  enabling libyuv
Creating makefiles for x86_64-iphonesimulator-gcc libs
Creating makefiles for x86_64-iphonesimulator-gcc docs
  enabling pic
  disabling unit_tests
  enabling postproc
  enabling multi_res_encoding
  enabling vp9_temporal_denoising
  enabling vp9_postproc
  disabling examples
Configuring selected codecs
  enabling vp8_encoder
  enabling vp8_decoder
  enabling vp9_encoder
  enabling vp9_decoder
Configuring for target 'armv7s-darwin-gcc'
  enabling armv7s
  enabling neon
  enabling neon_asm
  enabling media
Toolchain is unable to link executables

Configuration failed. This could reflect a misconfiguration of your
toolchains, improper options selected, or another problem. If you
don't see any useful error messages above, the next step is to look
at the configure error log file (config.log) to determine what
configure was trying to do when it died.
Running command './configure --prefix=/Users/rjohnweber/cerbero/dist/ios_universal --libdir=/Users/rjohnweber/cerbero/dist/ios_universal/lib --enable-pic --as=yasm --disable-unit-tests --size-limit=16384x16384 --enable-postproc --enable-multi-res-encoding --enable-temporal-denoising --enable-vp9-temporal-denoising --enable-vp9-postproc  --disable-examples --target=x86_64-iphonesimulator-gcc '
Running command './configure --prefix=/Users/rjohnweber/cerbero/dist/ios_universal --libdir=/Users/rjohnweber/cerbero/dist/ios_universal/lib --enable-pic --as=yasm --disable-unit-tests --size-limit=16384x16384 --enable-postproc --enable-multi-res-encoding --enable-temporal-denoising --enable-vp9-temporal-denoising --enable-vp9-postproc  --disable-examples --target=armv7s-darwin-gcc '

The config.log for libvpx ends with the following message

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -L/Users/rjohnweber/cerbero/dist/ios_universal/lib -arch armv7s -mcpu=cortex-a9 -pipe -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.0.sdk -miphoneos-version-min=6.0 -Wl,-iphoneos_version_min,6.0 -Wl,-undefined,error -Wl,-headerpad_max_install_names -Wno-error=unused-command-line-argument -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -arch armv7s -miphoneos-version-min=6.0 -L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.0.sdk/usr/lib -L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.0.sdk/usr/lib/system -o /var/folders/vh/yhhl_h6x57912rwpbxz6dt9r0000gn/T//vpx-conf-36134-3722.x /var/folders/vh/yhhl_h6x57912rwpbxz6dt9r0000gn/T//vpx-conf-36134-3722.o -lpthread
ld: in '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/lib/system/libkeymgr.tbd', missing required architecture armv7s in file /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/lib/system/libkeymgr.tbd for architecture armv7s
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Could this be due to a change made to solve the following bug?
https://bugzilla.gnome.org/show_bug.cgi?id=728258