CFLAGS += in various Makefile.am's

[ERDI Gergo <cactus cactus rulez org>]

I guess the idea here is to support CFLAGS supplied at configuration time,
but at least automake 1.5 doesn't like this approach, and complains about
+= working only after the variable's initial value is set.
so another solution should be found for honoring user-supplied CFLAGS.


-- 
   .--= ULLA! =---------------------.   `We are not here to give users what
   \     http://cactus.rulez.org     \   they want'  -- RMS, at GUADEC 2001
    `---= cactus cactus rulez org =---'
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