[Android Builders Collective] Juzman:
That isn't what I wanted to hear. :(

I got a bit further, then:

Import includes file: /Volumes/SlimLP/out/host/darwin-x86/obj32/EXECUTABLES/mkbootimg_intermediates/import_includes
host C: libmincrypt_32 <= system/core/libmincrypt/dsa_sig.c
host C: libmincrypt_32 <= system/core/libmincrypt/p256.c
host C: libmincrypt_32 <= system/core/libmincrypt/p256_ec.c
host C: libmincrypt_32 <= system/core/libmincrypt/p256_ecdsa.c
<built-in>:0: error: Unknown value '10.10' of -mmacosx-version-min
<built-in>:0: error: Unknown value '10.10' of -mmacosx-version-min
<built-in>:0: error: Unknown value '10.10' of -mmacosx-version-min
<built-in>:0: error: Unknown value '10.10' of -mmacosx-version-min

Now getting these errors:

host C: mkbootfs <= system/core/cpio/mkbootfs.c
system/core/cpio/mkbootfs.c:12:20: error: stdarg.h: No such file or directory
cc1: warnings being treated as errors
system/core/cpio/mkbootfs.c: In function 'die':
system/core/cpio/mkbootfs.c:30: warning: implicit declaration of function 'va_start'
system/core/cpio/mkbootfs.c:34: warning: implicit declaration of function 'va_end'
make: *** [/Volumes/SlimLP/out/host/darwin-x86/obj32/EXECUTABLES/mkbootfs_intermediates/mkbootfs.o] Error 1

/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:75:10: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
printf(_("aborted!\n\n"));
^~~~~~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:76:10: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
printf(_("Console input/output is redirected. "));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:77:10: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
printf(_("Run 'make oldconfig' to update configuration.\n\n"));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:87:10: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
printf(_("(NEW) "));
^~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:286:12: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
printf(_(" (NEW)"));
^~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:434:13: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
printf(_("*\n* Restart config...\n*\n"));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:603:6: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
_("\n*** The configuration requires explicit update.\n\n"));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:655:20: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:659:20: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)
^~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/conf.c:670:20: warning: format string is not a string literal (potentially insecure)
[-Wformat-security]
fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Volumes/SlimLP/kernel/lge/hammerhead/scripts/kconfig/lkc.h:36:17: note: expanded from macro '_'
#define _(text) gettext(text)