Bug#636129: pkg-kde-tools: dhmk.mk does not honor C(XX)FLAGS set in debian/rules

[Daniel Schaal <farbing@web.de>]

Package: pkg-kde-tools
Version: 0.14.2
Severity: normal

dhmk.mk does not check whether C(XX)FLAGS are already set,
but unconditionally sets them to the values from dpkg-buildflags.
This means that setting them using e.g. export CFLAGS += ... in 
debian/rules does no longer work.

It should probably check whether those flags are already set,
and only use the value from dpkg-buildflags if they are not.

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (102, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0fglrx2 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages pkg-kde-tools depends on:
ii  libdpkg-perl                  1.16.0.3   Dpkg perl modules
ii  perl                          5.12.4-2   Larry Wall's Practical Extraction 

Versions of packages pkg-kde-tools recommends:
ii  dpkg-dev                      1.16.0.3   Debian package development tools
ii  libwww-perl                   6.02-1     simple and consistent interface to

Versions of packages pkg-kde-tools suggests:
ii  cdbs                          0.4.96     common build system for Debian pac
ii  debhelper                     8.9.3      helper programs for debian/rules

-- no debconf information