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I already asked this question on SO, but it seems like the problem is probably with linker.

So, the question is:

I'm trying to build a project, using $ make, but it fails:

host SharedLib: libneo_cgi (out/host/linux-x86/obj/lib/libneo_cgi.so) 
/usr/bin/ld: skipping incompatible /usr/lib/gcc/i486-linux-gnu/4.4.3/../../../libz.so when searching for -lz 
/usr/bin/ld: skipping incompatible /usr/lib/gcc/i486-linux-gnu/4.4.3/../../../libz.a when searching for -lz 
/usr/bin/ld: skipping incompatible /usr/lib/libz.so when searching for -lz 
/usr/bin/ld: skipping incompatible /usr/lib/libz.a when searching for -lz 
/usr/bin/ld: cannot find -lz 
collect2: ld returned 1 exit status 
make: *** [out/host/linux-x86/obj/lib/libneo_cgi.so] Error 1

Now look at this library:

$ ls -l /usr/lib/libz.so 
lrwxrwxrwx 1 root root 20 2010-07-07 17:08 /usr/lib/libz.so -> /lib/libz.so.1.2.3.3

$ file /lib/libz.so.1.2.3.3
/lib/libz.so.1.2.3.3: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked, stripped

and I have:

$ arch
i686

I installed this library like this:

sudo apt-get install libz-dev

So.. How do I get through this? And how do I make Ubuntu download right libs in the future? And I'm actually not sure: is this the real problem, or it is somewhere else?

I'm also unable to install some required packages:

E: Couldn't find package lib32z1-dev
E: Couldn't find package lib32ncurses5-dev

P.S. Ubuntu 10.04 LTS, running on Lenovo ThinkPad SL500, Core 2 DUO CPU.

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5 Answers

up vote 1 down vote

I am having this same issue on my Lenovo Netbook s10e Intel Atom running Ubuntu 10.04 netbook edition. After countless hours of searching the net for answers I hear this has something to Java6 checking and forcing a 64 bit build in Clearsilver for 32bit systems. The solution was to roll back the clearsilver path located here: http://android.git.kernel.org/?p=platform/external/clearsilver.git;a=commitdiff;h=d36910a8110d8377b22301274d2b5131a732a72b

unfortunately i am not sure how exactly to do this. i used the abandon feature in repo to remove those .mk links listed but it did not change the error.

would really appreciate some help.

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just found some helpful information on this issue here: linuxquestions.org/questions/linux-newbie-8/… – slimatic Jul 10 '10 at 6:05
You found more threads by the OP, actually. But forcing -m64 -> broken build process. – Tobu Jul 10 '10 at 7:52
yeah, that's my question on LQ :) But there's no solution in that thread neither. – folone Jul 10 '10 at 8:42
up vote 0 down vote

The Canonical (not "canonical") package names for Lucid Lynx are zlib1g-dev and libncurses5.

Just curious, did you invent the name libz-dev or did some documentation lead you to that?

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My system cannot find those two. But it can fing libz-dev, so.. – folone Jul 10 '10 at 8:43
up vote 0 down vote

Your system seems in order, but the build process could be broken. Does make tell you the command it uses to build?

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up vote 0 down vote accepted

It seems, that I've resolved this problem. I replaced my jdk6 with sun-jdk5 (added Jaunty's repo) and replaced my default jdk6 with it:

sudo update-java-alternatives --set java-1.5.0-sun

I've left my laptop compiling for the weekend, and now it seems, that it succeeded.

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up vote 0 down vote

I am hearing that trying to compile Android on a 32-bit Ubuntu installation may not work. Is this true? Any success on 32-bit installation of Ubuntu 10.0.4 ?

@folone I also replaced the jdk6 with sun-jdk5 but it did not resolve the issue.

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What is the error message, you are having? some ClearSilver thing, or problems with missing libraries, mentioned in the question? Or something new? Did you do $ sudo update-java-alternatives --set java-1.5.0-sun to actually replace your jdk6 with jdk5? What does $ java -version tell you? – folone Jul 13 '10 at 9:37
Also, I just wrote a blog post on problems, I encountered during the build and debug process. Here: f010n3-m.ath.cx/post/806018047/… Hope, it helps. – folone Jul 13 '10 at 10:29
i was getting errors like this again: /usr/bin/ld: skipping incompatible /usr/lib/gcc/i486-linux-gnu/4.4.3/../../../libz.so when searching for -lz i finally got a successful build (even though i am stuck on boot loop). the issue was with some 64amd libs that were installed as well when i run this: sudo apt-get install git-core gnupg sun-java5-jdk flex bison gperf libsdl-dev libesd0-dev libwxgtk2.6-dev build-essential zip curl libncurses5-dev zlib1g-dev valgrind libreadline5-dev gcc-multilib g++-multilib libc6-dev libncurses5-dev x11proto-core-dev libx11-dev libreadline5-dev libz-dev – slimatic Jul 13 '10 at 16:43
after installing the packages i went back and removed all packages that had 64 or amd or both in them. and guess what? that worked. once i have successfully flashed the boot.img system.img and recovery.img i will post my results. i used this as a guide - it was helpful: forum.xda-developers.com/showthread.php?t=704561 – slimatic Jul 13 '10 at 16:46

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