Error building cm12.1 for note 4 tmobile on mac 10.11 el capitan - error: Unknown...

Don't know if this is the right place to post this. But I'm trying to build cm12.1 for my tmobile note 4. I'm using a imac running os x 10.11 (el capitan). I'm getting the following error about the macosx-version-min. Has anyone seen this? I've got updates that include 10.10 and 10.11 version is the build/core/combo/HOST_darwin_x86*.mk files. I've also add 10.10 and 10.11 to mac_sdk_versions_supported in build/core/combo/mac_version.mk. Not sure where else to look.

host C: libmincrypt_32 <= system/core/libmincrypt/p256_ec.c
<built-in>:0: error: Unknown value '10.11' of -mmacosx-version-min
<built-in>:0: error: Unknown value '10.11' of -mmacosx-version-min<built-in>:0: error: Unknown value '10.11' of -mmacosx-version-min

<built-in>:0: error: Unknown value '10.11' of -mmacosx-version-min
make: *** [/Volumes/androidtouro/cm121/out/host/darwin-x86/obj32/STATIC_LIBRARIES/libmincrypt_intermediates/dsa_sig.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [/Volumes/androidtouro/cm121/out/host/darwin-x86/obj32/STATIC_LIBRARIES/libmincrypt_intermediates/p256.o] Error 1
make: *** [/Volumes/androidtouro/cm121/out/host/darwin-x86/obj32/EXECUTABLES/mkbootimg_intermediates/mkbootimg.o] Error 1
make: *** [/Volumes/androidtouro/cm121/out/host/darwin-x86/obj32/STATIC_LIBRARIES/libmincrypt_intermediates/p256_ec.o] Error 1

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