compile error with node

[springmeyer]

Currently hitting

  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang '-D_DARWIN_USE_64_BIT_INODE=1' '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' '-D_GNU_SOURCE' '-DHAVE_CONFIG_H' '-DCARES_STATICLIB' -I/Volumes/Flex/mapnik-packaging/osx/out/build-libc++-x86_64/include -I../deps/cares/include -I../deps/cares/src -I../deps/cares/config/darwin  -Os -gdwarf-2 -mmacosx-version-min=10.5 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter -fno-strict-aliasing -MMD -MF /Volumes/Flex/mapnik-packaging/osx/out/packages/node-v0.10.17/out/Release/.deps//Volumes/Flex/mapnik-packaging/osx/out/packages/node-v0.10.17/out/Release/obj.target/cares/deps/cares/src/ares__close_sockets.o.d.raw -I/Volumes/Flex/mapnik-packaging/osx/out/build-libc++-x86_64/include -DNDEBUG -O3 -arch x86_64 -D_FILE_OFFSET_BITS=64 -mmacosx-version-min=10.7 -isysroot /SDKs/MacOSX10.7.sdk -c -o /Volumes/Flex/mapnik-packaging/osx/out/packages/node-v0.10.17/out/Release/obj.target/cares/deps/cares/src/ares__close_sockets.o ../deps/cares/src/ares__close_sockets.c
In file included from ../deps/cares/src/ares__close_sockets.c:17:
../deps/cares/src/ares_setup.h:79:10: fatal error: 'errno.h' file not found

[springmeyer]

was a problem with a missing OSX SDK, closing.

[tqwhite]

What OSX SDK?