Arch Linux User Repository

You could add 'armv6h' to the supported architectures for Raspberry Pi. I tested it, it works.

Things from profile.d/* are supposed to be sourced on login (from /etc/profile file). Check if your /etc/profile actually contains that logic and you didn't overwrite PATH variable somewhere else.

the buildsystem fails to find /usr/bin/core_perl/pod2man, resulting in ncdc.1 not being built and install failure.

export PATH=${PATH}:/usr/bin/core_perl
just before the configure line kinda fixed this,

/etc/profile.d/perlbin.{,c}sh doesn't affect zsh or bash.

checking for pod2man... no
[...]
make all-am
make[1]: Entering directory `/tmp/packerbuild-0/ncdc/ncdc/src/ncdc-1.17'
GEN src/version.h
CC src/main.o
src/main.c: In function ‘main’:
src/main.c:420:3: warning: ‘g_thread_init’ is deprecated (declared at /usr/include/glib-2.0/glib/deprecated/gthread.h:260) [-Wdeprecated-declarations]
g_thread_init(NULL);
^
CCLD ncdc
make[1]: Leaving directory `/tmp/packerbuild-0/ncdc/ncdc/src/ncdc-1.17'
==> Starting package()...
make[1]: Entering directory `/tmp/packerbuild-0/ncdc/ncdc/src/ncdc-1.17'
/usr/bin/mkdir -p '/tmp/packerbuild-0/ncdc/ncdc/pkg/ncdc//usr/bin'
/usr/bin/install -c ncdc '/tmp/packerbuild-0/ncdc/ncdc/pkg/ncdc//usr/bin'
/usr/bin/mkdir -p '/tmp/packerbuild-0/ncdc/ncdc/pkg/ncdc//usr/share/man/man1'
/usr/bin/install -c -m 644 ./doc/ncdc.1 '/tmp/packerbuild-0/ncdc/ncdc/pkg/ncdc//usr/share/man/man1'
/usr/bin/install: cannot stat ‘./doc/ncdc.1’: No such file or directory
make[1]: *** [install-man1] Error 1
make[1]: Leaving directory `/tmp/packerbuild-0/ncdc/ncdc/src/ncdc-1.17'
make: *** [install-am] Error 2
==> ERROR: A failure occurred in package().
Aborting...
The build failed.

@dauerbaustelle: I should have known there was a special arch tag for ARM. Added to the PKGBUILD, thanks.

please add 'arm' to the list anyway

Glad to hear it works on ARM. :-)
However, arch=('any') is meant for achitecture-independent packages (i.e. things that aren't compiled to native machine code), which this definitely isn't. The ArchLinuxARM site[1] recommends you use makepkg -A instead.
1. http://archlinuxarm.org/developers/abs

Please change arch=('i686' 'x86_64') to arch=('any')
Btw. works great on ARM with ArchLinuxARM

yorhel: Excellent program, miles better than microdc2 that I used earlier, well done!

@yorhel
Thanks for this great program!
If you want, I disown this package and you can take ownership of YOUR program.

Fine with me. I guess I can make updating the package part of the release process (instant updates :).