Error trying to compile qemu from source

Question

I am trying to compile qemu from source to get my hands dirty with its development. I cloned the package from the repository. I extracted the tarball and started with the configuration using

./configure

when I got the following error:

ERROR: DTC (libfdt) not present. Your options:
         (1) Preferred: Install the DTC (libfdt) devel package
         (2) Fetch the DTC submodule, using:
             git submodule update --init dtc

I tried installing libfdt using sudo apt-get install libfdt-dev but this did not resolve the error.

There is a similar question I have seen but this too could not solve the error I am facing:

• “ERROR: zlib check failed” while compiling Qemu

How do I fix this error to successfully compile qemu from source?

Edit:

Executing git submodule update --init dtc while I am still in the qemu package's directory returned the following error:

fatal: Not a git repository (or any parent up to mount point /home)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).

Solution 1

To fix this issue:

• Cloned dtc from its repository and extract the tarball to qemu/dtc/.

• Compile dtc from source using make

• Restart configuring qemu using ./configure when in qemu directory.

The problem was qemu tries to search for dtc binaries in qemu/dtc. Even if you have installed dtc using sudo apt-get install device-tree-compiler, you will get the above error(mentioned in the question), so you probably need to have the binaries in qemu/dtc.

Solution 2

From the error:

ERROR: DTC (libfdt) not present. Your options:
     (1) Preferred: Install the DTC (libfdt) devel package
     (2) Fetch the DTC submodule, using:
         git submodule update --init dtc

See item (2): use git submodule update --init dtc

Try get the qemu source code from the git:

# git clone git://git.qemu.org/qemu.git
# cd qemu
# git submodule init
# git submodule update --recursive
# git submodule status --recursive
65cc4d2748a2c2e6f27f1cf39e07a5dbabd80ebf dtc (v1.4.0)
87eea99e443b389c978cf37efc52788bf03a0ee0 pixman (pixman-0.32.6)
b4c93802a5b2c72f096649c497ec9ff5708e4456 roms/SLOF (qemu-slof-20141202-63-gb4c9380)
4e03af8ec2d497e725566a91fd5c19dd604c18a6 roms/ipxe (v1.0.0-2016-g4e03af8)
3caee1794ac3f742315823d8447d21f33ce019e9 roms/openbios (3caee17)
c559da7c8eec5e45ef1f67978827af6f0b9546f5 roms/openhackware (heads/master)
c87a92639b28ac42bc8f6c67443543b405dc479b roms/qemu-palcode (heads/master)
33fbe13a3e2a01e0ba1087a8feed801a0451db21 roms/seabios (rel-1.8.2)
23d474943dcd55d0550a3d20b3d30e9040a4f15b roms/sgabios (heads/master)
2072e7262965bb48d7fffb1e283101e6ed8b21a8 roms/u-boot (v2014.07-rc1-79-g2072e72)
19ea12c230ded95928ecaef0db47a82231c2e485 roms/vgabios (heads/master)

And after it you can call ./configure.

Comments

[Panther]

did you run "git submodule update --init dtc"

[jobin]

@bodhi.zazen: Ran the command but got an error.

[Warren P]

Sorry deleting comment. My case was special.