Hi all,
I am trying to make an executable file for OpenWrt using
OpenWrt-SDK-ar71xx-generic_gcc-5.3.0_musl-1.1.16.Linux-x86_64.tar.bz2
— i.e. cross-compilation.

So I put the code into package directory and the output appears in build_dir directory as expected.

I have two almost identical computers.
On the first computer it works perfectly.
But on the second it doesn't work — nothing appears in build_dir directory!

The system says:

make[2]: Nothing to be done for `package/compile'.

The computers are almost identical: Win7 with VirtualBox with Ubuntu12 64bit.
I cannot find any difference. Basically the folder for the cross-compilation is the same!

Here is what happens:

osboxes@osboxes:~/Downloads/trunk$ make V=99
awk: include/scan.awk: line 21: function asort never defined
awk: include/scan.awk: line 21: function asort never defined
awk: include/scan.awk: line 21: function asort never defined
awk: include/scan.awk: line 21: function asort never defined
#
# configuration written to .config
#
make[1]: Entering directory `/home/osboxes/Downloads/trunk'
make[2]: Entering directory `/home/osboxes/Downloads/trunk'
make[2]: Nothing to be done for `package/compile'.
make[2]: Leaving directory `/home/osboxes/Downloads/trunk'
make[2]: Entering directory `/home/osboxes/Downloads/trunk'
Generating package index...
Signing key has not been configured
make[2]: Leaving directory `/home/osboxes/Downloads/trunk'
make[1]: Leaving directory `/home/osboxes/Downloads/trunk'
osboxes@osboxes:~/Downloads/trunk$ 

What can be the reason of that strange error?

Why aren't you putting your code in ~/OpenWrt-SDK-ar71xx-generic_gcc-5.3.0_musl-1.1.16.Linux-x86_64/feeds/packages/utils?

Then go to general directory and run:
1) ./scripts/feeds update -i
2) ./scripts/feeds/install <your package>
3) make/<your package>/compile