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Date: Fri, 15 Jul 2011 12:01:03 +0200
From: Christian Neukirchen <>
Subject: Re: musl-gcc vs. BusyBox 1.18.5: multiple definitions of '_start'

Isaac Dunham <> writes:

> applets/built-in.o: In function `_start': (.text+0x0): multiple
> definition of `_start' /opt/musl/lib/crt1.o:(.text+0x0): first defined
> here collect2: ld returned 1 exit status make: *** [busybox_unstripped]
> Error 1
> =======END of error
> grep + strings tell me that "_start" is found in crt1.o, and in the
> "start.o" section of libc.a (and 

Sabotage uses:

make CFLAGS_busybox="-Wl,-z,muldefs" HOSTCC=gcc CC=$R/bin/musl-gcc

and that works, but not sure which _start is used there.
(It's not required on a pure-musl system anymore.)

Christian Neukirchen  <>

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