[Nexus 4 Android Development] KreAch3R:
I tried to build a few hours ago but I keep getting these errors about busybox:

Export includes file: external/yaffs2/Android.mk -- /home/kreach3r/android/saosp/out/host/linux-x86/obj32/EXECUTABLES/mkyaffs2image_intermediates/export_includes
GEN runit/Config.in
Import includes file: /home/kreach3r/android/saosp/out/host/linux-x86/obj32/EXECUTABLES/build_verity_tree_intermediates/import_includes
GEN applets/Kbuild
Export includes file: system/extras/verity/Android.mk -- /home/kreach3r/android/saosp/out/host/linux-x86/obj32/EXECUTABLES/build_verity_tree_intermediates/export_includes
host Java: VeritySigner (/home/kreach3r/android/saosp/out/host/common/obj/JAVA_LIBRARIES/VeritySigner_intermediates/classes)
GEN findutils/Kbuild
Import includes file: /home/kreach3r/android/saosp/out/host/linux-x86/obj32/EXECUTABLES/append2simg_intermediates/import_includes
Export includes file: system/core/libsparse/Android.mk -- /home/kreach3r/android/saosp/out/host/linux-x86/obj32/EXECUTABLES/append2simg_intermediates/export_includes
GEN findutils/Config.in
host Java: BootSignature (/home/kreach3r/android/saosp/out/host/common/obj/JAVA_LIBRARIES/BootSignature_intermediates/classes)
GEN procps/Kbuild
GEN procps/Config.in
GEN coreutils/Kbuild
GEN coreutils/Config.in
GEN coreutils/libcoreutils/Kbuild
GEN libbb/Kbuild
# In case value of PACKAGES is empty.
Import includes file: /home/kreach3r/android/saosp/out/host/linux-x86/obj32/EXECUTABLES/mkbootimg_intermediates/import_includes
host C: libmincrypt_32 <= system/core/libmincrypt/dsa_sig.c
GEN libbb/Config.in
GEN modutils/Kbuild
GEN modutils/Config.in
GEN sysklogd/Kbuild
GEN sysklogd/Config.in
host C: libmincrypt_32 <= system/core/libmincrypt/p256.c
GEN scripts/Kbuild
GEN miscutils/Kbuild
GEN miscutils/Config.in
host C: libmincrypt_32 <= system/core/libmincrypt/p256_ec.c
GEN archival/Kbuild
GEN archival/Config.in
GEN archival/libarchive/Kbuild
host C: libmincrypt_32 <= system/core/libmincrypt/p256_ecdsa.c
GEN loginutils/Kbuild
GEN loginutils/Config.in
GEN networking/Kbuild
GEN networking/Config.in
host C: libmincrypt_32 <= system/core/libmincrypt/rsa.c
host C: libmincrypt_32 <= system/core/libmincrypt/sha.c
GEN networking/libiproute/Kbuild
host C: libmincrypt_32 <= system/core/libmincrypt/sha256.c
GEN networking/udhcp/Kbuild
GEN networking/udhcp/Config.in
Import includes file: /home/kreach3r/android/saosp/out/host/linux-x86/obj32/EXECUTABLES/acp_intermediates/import_includes
GEN init/Kbuild
host C: libhost_32 <= build/libs/host/CopyFile.c
GEN init/Config.in
GEN selinux/Kbuild
GEN selinux/Config.in
GEN e2fsprogs/Kbuild
make -C kernel/lge/mako O=/home/kreach3r/android/saosp/out/target/product/mako/obj/KERNEL_OBJ ARCH=arm CROSS_COMPILE="/home/kreach3r/android/saosp/prebuilts/gcc/linux-x86/arm/arm-eabi-4.9/bin/arm-eabi-" VARIANT_DEFCONFIG= SELINUX_DEFCONFIG= mako_defconfig
GEN e2fsprogs/Config.in
host C: mkbootfs <= system/core/cpio/mkbootfs.c
GEN e2fsprogs/old_e2fsprogs/Kbuild
GEN e2fsprogs/old_e2fsprogs/Config.in
Import includes file: /home/kreach3r/android/saosp/out/host/linux-x86/obj32/EXECUTABLES/checkpolicy_intermediates/import_includes
host C: libsepol_32 <= external/libsepol/src/assertion.c
GEN e2fsprogs/old_e2fsprogs/e2p/Kbuild
GEN e2fsprogs/old_e2fsprogs/blkid/Kbuild
make[1]: Entering directory `/home/kreach3r/android/saosp/kernel/lge/mako'
GEN e2fsprogs/old_e2fsprogs/ext2fs/Kbuild
HOSTCC scripts/basic/fixdep
/bin/sh: 1: ccache: not found
make[3]: *** [scripts/basic/fixdep] Error 127
make[2]: *** [scripts_basic] Error 2
make[1]: *** [sub-make] Error 2
make[1]: Leaving directory `/home/kreach3r/android/saosp/kernel/lge/mako'
make: *** [/home/kreach3r/android/saosp/out/target/product/mako/obj/KERNEL_OBJ/.config] Error 2
make: *** Waiting for unfinished jobs....
GEN e2fsprogs/old_e2fsprogs/uuid/Kbuild
GEN shell/Kbuild
GEN shell/Config.in
GEN editors/Kbuild
GEN editors/Config.in
GEN debianutils/Kbuild
GEN debianutils/Config.in
GEN util-linux/Kbuild
GEN util-linux/Config.in
GEN util-linux/volume_id/Kbuild
GEN util-linux/volume_id/Config.in
GEN printutils/Kbuild
GEN printutils/Config.in
GEN mailutils/Kbuild
GEN mailutils/Config.in
In file included from <command-line>:0:0:
./build/core/combo/include/arch/linux-x86/AndroidConfig.h:316:5: warning: "__GLIBC__" is not defined [-Wundef]
./build/core/combo/include/arch/linux-x86/AndroidConfig.h:316:23: warning: "__GLIBC__" is not defined [-Wundef]
GEN /home/kreach3r/android/saosp/out/target/product/mako/obj/busybox/full/Makefile
HOSTCC scripts/basic/fixdep
HOSTCC scripts/basic/split-include
HOSTCC scripts/basic/docproc
/home/kreach3r/android/saosp/external/busybox/scripts/basic/split-include.c: In function ‘main’:
/home/kreach3r/android/saosp/external/busybox/scripts/basic/split-include.c:134:6: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
fgets(old_line, buffer_size, fp_target);
^
HOSTCC scripts/kconfig/conf.o
/home/kreach3r/android/saosp/external/busybox/scripts/kconfig/conf.c: In function ‘conf_askvalue’:
/home/kreach3r/android/saosp/external/busybox/scripts/kconfig/conf.c:106:3: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
fgets(line, 128, stdin);
^
/home/kreach3r/android/saosp/external/busybox/scripts/kconfig/conf.c: In function ‘conf_choice’:
/home/kreach3r/android/saosp/external/busybox/scripts/kconfig/conf.c:354:4: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
fgets(line, 128, stdin);
^
HOSTCC scripts/kconfig/kxgettext.o
HOSTCC scripts/kconfig/mconf.o
SHIPPED scripts/kconfig/zconf.tab.c
SHIPPED scripts/kconfig/lex.zconf.c
SHIPPED scripts/kconfig/zconf.hash.c
HOSTCC scripts/kconfig/zconf.tab.o
/home/kreach3r/android/saosp/external/busybox/scripts/kconfig/mconf.c: In function ‘show_textbox’:
/home/kreach3r/android/saosp/external/busybox/scripts/kconfig/mconf.c:847:2: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
write(fd, text, strlen(text));
^
/home/kreach3r/android/saosp/external/busybox/scripts/kconfig/mconf.c: In function ‘exec_conf’:
/home/kreach3r/android/saosp/external/busybox/scripts/kconfig/mconf.c:481:2: warning: ignoring return value of ‘pipe’, declared with attribute warn_unused_result [-Wunused-result]
pipe(pipefd);
^
HOSTLD scripts/kconfig/conf
scripts/kconfig/conf -s Config.in
#
# using defaults found in .config
#
SPLIT include/autoconf.h -> include/config/*
HOSTCC applets/usage
HOSTCC applets/applet_tables
/home/kreach3r/android/saosp/external/busybox/applets/usage.c: In function ‘main’:
/home/kreach3r/android/saosp/external/busybox/applets/usage.c:52:3: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
write(STDOUT_FILENO, usage_array[i].usage, strlen(usage_array[i].usage) + 1);
^
GEN include/bbconfigopts.h
/home/kreach3r/android/saosp/external/busybox/applets/applet_tables.c: In function ‘main’:
/home/kreach3r/android/saosp/external/busybox/applets/applet_tables.c:144:4: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
fgets(line_old, sizeof(line_old), fp);
^
GEN include/usage_compressed.h
GEN include/applet_tables.h
HOSTCC applets/usage_pod
CC applets/applets.o
LD applets/built-in.o
make[1]: Leaving directory `/home/kreach3r/android/saosp/external/busybox'

Is it something on my side or yours? I tried to re-sync (-d, -f) multiple times, deleted the busybox folder and re-synced, make clobber. Before the messages appear I was editing build/envsetup.sh and build/core/main.mk (which I reverted to the original git commits, but the error still occurs).