[RFA/testsuite/ada] re-implement make clean & distclean

[Joel Brobecker <brobecker@adacore.com>]

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Hello,

The current implementation for make clean requires us that we update
the EXECUTABLES list each time we add a new testcase. It was a vague
copy/paste of some code I probably found in one of the nearby Makefiles...
It was causing me a bit of grief that certain files would not be deleted
when I did a "make clean", in particular the executables produced by
gnatmake. I decided to replace this with an approach we have been using
with great success in our own testsuite for years...

2006-12-31  Joel Brobecker  <brobecker@adacore.com>

        * gdb.ada/Makefile.in (EXECUTABLES): Delete.
        (MISCELLANEOUS): Delete.
        (clean): Re-implement.
        (mostlyclean): Likewise.

Tested on my x86-linux laptop.  Any objection?

Thank you,
-- 
Joel

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Index: Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.ada/Makefile.in,v
retrieving revision 1.2
diff -u -p -r1.2 Makefile.in
--- Makefile.in	3 Feb 2005 03:58:52 -0000	1.2
+++ Makefile.in	31 Dec 2006 10:00:46 -0000
@@ -1,24 +1,16 @@
 VPATH = @srcdir@
 srcdir = @srcdir@
 
-EXECUTABLES = null_record/null_record fixed_points/fixed_points
-
-MISCELLANEOUS =
-
 all info install-info dvi install uninstall installcheck check:
 	@echo "Nothing to be done for $@..."
 
 clean mostlyclean:
-	-find . -name '*.o' -print | xargs rm -f
-	-find . -name '*.ali' -print | xargs rm -f
-	-find . -name 'b~*.ad[sb]' -print | xargs rm -f
-	-rm -f *~ a.out xgdb *.x *.ci *.tmp
-	-rm -f *~ *.o a.out xgdb *.x *.ci *.tmp
-	-rm -f core core.coremaker coremaker.core corefile $(EXECUTABLES)
-	-rm -f $(MISCELLANEOUS) twice-tmp.c
+	-find . ! \( -name CVS -prune \) ! -type d \
+	  ! -name '*.ad[sb]' ! -name '*.[hc]' ! -name '*.gpr' \
+	  ! -name '*.exp' \
+	  ! -name 'Makefile*' \
+	  -exec rm -f {} \;
+	-find . -name 'b~*.ad[sb]' -exec rm -f {} \;
 
 distclean maintainer-clean realclean: clean
-	-rm -f *~ core
-	-rm -f Makefile config.status config.log
-	-rm -f *-init.exp
-	-rm -fr *.log summary detail *.plog *.sum *.psum site.*
+	-rm -f Makefile