autotools transition report: need a flag day

[Phil Edwards]

On Tue, Aug 26, 2003 at 09:43:14AM -0700, Dan Kegel wrote:
> cd $TARGET/$LIBSTDCXX_DIR/testsuite
> runtest --tool=$LIBSTDCXX_TEST --target=$TARGET -v || echo Some $LIBSTDCXX_TEST test failed...

Try adding "make site.exp" between those commands.

> (I'm invoking runtest directly
> rather than 'make check'.  Guess I'm paying for that now, but
> invoking it directly makes it a lot easier to figure out how
> options get passed to runtest :-)

Simplifying only a tiny bit, the generated make lines are basically:

    AM_RUNTESTFLAGS =
    RUNTESTDEFAULTFLAGS = --tool $$tool --srcdir $$srcdir
    RUNTESTFLAGS =
    DEJATOOL = libstdc++

    check-DEJAGNU: site.exp
        srcdir=/path/to/source; \
        l='$(DEJATOOL)'; for tool in $$l; do \
          runtest $(AM_RUNTESTFLAGS) $(RUNTESTDEFAULTFLAGS) $(RUNTESTFLAGS); \
        done; \

Once, the variables and loops come out, it's just

    runtest --tool libstdc++ --srcdir /path/to/source

ith the target and everything else taken from the generated site.exp.

The way you pass additional flags is by setting RUNTESTFLAGS on the make
command line:

    make check RUNTESTFLAGS="--verbose"


-- 
Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it.
    - Brian W. Kernighan