Makefile error: *** multiple target patterns. Stop. - Android Q&A, Help & Troubleshooting

I am currently trying to build an Ubuntu Touch-compatible kernel for use with the Xperia Z5 Compact. I have been following the How to build and flash a Linux kernel for AOSP supported devices guide and am at the point at which I have created an Ubuntu-compatible .config file but am having issues finally building the kernel (Step 7) using the .config file as I receive the following error:
make ARCH=arm64 CROSS_COMPILE=$CROSS_COMPILE -j 14
Makefile:791: *** multiple target patterns. Stop.
I know that this error is related to the call of link-vmlinux.sh which is referenced as follows on line 791 of the Makefile:
vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
Any suggestions for debugging this problem would be greatly appreciated.

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blackstar1744 said:
I am currently trying to build an Ubuntu Touch-compatible kernel for use with the Xperia Z5 Compact. I have been following the How to build and flash a Linux kernel for AOSP supported devices guide and am at the point at which I have created an Ubuntu-compatible .config file but am having issues finally building the kernel (Step 7) using the .config file as I receive the following error:
make ARCH=arm64 CROSS_COMPILE=$CROSS_COMPILE -j 14
Makefile:791: *** multiple target patterns. Stop.
I know that this error is related to the call of link-vmlinux.sh which is referenced as follows on line 791 of the Makefile:
vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
Any suggestions for debugging this problem would be greatly appreciated.
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Yah, I'm facing the same problem. Only with 64-bit targets (G4 and G4 Stylus), this doesn't happen with any 32bit targets. It doesn't matter if I swap out the toolchain, it doesn't matter which tree I'm working -- Omni, Bliss, CM13 -- all can't get past that error.
So it doesn't seem like it's in the build tree, but maybe my system. I'm using Arch, so I'm used to Android building snafus, but still I cannot figure this out. I've gone through every chain leading to the error and I can't seem to pin it down. It's really harshing my build.
Lil' help, y'all?
UPDATE: Nevermind, just had to set USE_HOST_LEX. Goddammit, I though I already tried that.

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Any explanation for why you need to set USE_HOST_LEX? Is this an OS- or compiler-related modification? I'm compiling with UBERTC 4.9 on Ubuntu 14.04 LTS. I currently don't have USE_HOST_LEX in my .config file.
culot said:
Yah, I'm facing the same problem. Only with 64-bit targets (G4 and G4 Stylus), this doesn't happen with any 32bit targets. It doesn't matter if I swap out the toolchain, it doesn't matter which tree I'm working -- Omni, Bliss, CM13 -- all can't get past that error.
So it doesn't seem like it's in the build tree, but maybe my system. I'm using Arch, so I'm used to Android building snafus, but still I cannot figure this out. I've gone through every chain leading to the error and I can't seem to pin it down. It's really harshing my build.
Lil' help, y'all?
UPDATE: Nevermind, just had to set USE_HOST_LEX. Goddammit, I though I already tried that.
Click to expand...
Click to collapse

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blackstar1744 said:
Any explanation for why you need to set USE_HOST_LEX? Is this an OS- or compiler-related modification? I'm compiling with UBERTC 4.9 on Ubuntu 14.04 LTS. I currently don't have USE_HOST_LEX in my .config file.
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Click to collapse
USE_HOST_LEX set the build to use host's Flex instead of the one in-tree. See build/core/config.mk:
Code:
ifeq ($(USE_HOST_LEX),yes)
LEX := flex
else
LEX := prebuilts/misc/$(BUILD_OS)-$(HOST_PREBUILT_ARCH)/flex/flex-2.5.39
endif
I don't know about elsewhere, but this has been a problem on Arch for a while. Lately this has not longer been a problem for me, so I assumed it was not an issue. Apparently still a problem for 64bit build, but not 32bit. Hmm.
Another workaround was to preface your make with LC_ALL=C, but I tried that without setting 'USE_HOST_LEX=yes' and it didn't help.
EDIT: I don't think it's compiler-related, as I did try different toolchains and different toolchain versions -- none made a difference. I tried 3 different Make versions, no help. USE_HOST_LEX? That fixed it. Compiling as we speak.

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I added export USE_HOST_LEX=yes to my .bashrc and went back to the GCC compiler...new problem to debug. Any suggestions on debugging control groups would be greatly appreciated
Code:
make ARCH=arm64 CROSS_COMPILE=$CROSS_COMPILE -j 1
CHK include/generated/uapi/linux/version.h
CHK include/generated/utsrelease.h
CALL scripts/checksyscalls.sh
<stdin>:1226:2: warning: #warning syscall sched_setattr not implemented [-Wcpp]
<stdin>:1229:2: warning: #warning syscall sched_getattr not implemented [-Wcpp]
CC scripts/mod/devicetable-offsets.s
GEN scripts/mod/devicetable-offsets.h
HOSTCC scripts/mod/file2alias.o
HOSTLD scripts/mod/modpost
CHK include/generated/compile.h
SKIPPED include/generated/compile.h
CC kernel/cgroup.o
kernel/cgroup.c: In function 'subsys_cgroup_allow_attach':
kernel/cgroup.c:2138:59: error: invalid operands to binary != (have 'kuid_t' and 'kuid_t')
if (current != task && cred->euid != tcred->uid &&
^
kernel/cgroup.c:2139:18: error: invalid operands to binary != (have 'kuid_t' and 'kuid_t')
cred->euid != tcred->suid)
^
make[1]: *** [kernel/cgroup.o] Error 1
make: *** [kernel] Error 2
Random side rant: The way Google shows search results is going wayyy downhill.