tests/lexvpath.test


Log

Author Commit Date CI Message
Stefano Lattarini 5b44ce39 2012-02-23T13:07:57 tests: quote 'like this', not `like this', as per GCS recommendation This patch converts the automake testsuite and related files, to the use of new quoting format 'like this' or "like this" rather than `like this'. This is done for consistency with the new recommendations in the GNU Coding Standards, and, well, because I've come to actually prefer the '...' and "..." quoting formats over the `...' one. * tests/README: Update quoting format throughout. Remove some "excessive" use of quoting, and throw in minor rewording where appropriate. * tests/Makefile.am: Likewise, for comments. * tests/CheckListOfTests.am: Likewise. * tests/defs-static.in: Likewise. * tests/defs: Likewise. * tests/trivial-test-driver: Likewise. * Many tests/*.tap, tests/*.test and tests/*.sh files: Likewise, and for the diagnostic and informational messages as well. * tests/gen-testsuite-part: Likewise, and for the generated tests as well.
Stefano Lattarini db973eaa 2012-02-21T19:47:36 tests: prefer 'configure.ac' over 'configure.in' With this change, our testsuite now uses 'configure.ac' as the name for the typical autoconf input, instead of the obsolescent 'configure.in' (which has been deprecated for several years, at least since autoconf 2.50). Most of the test cases changed by this commit have been automatically modified with this sed command (using GNU sed): sed -i 's/\<configure\(\\\?\)\.in\>/configure\1.ac/g' * syntax-checks.mk (sc_tests_no_configure_in): New syntax check. (syntax_check_rules): Add it. * tests/defs: Create stub for autoconf input in 'configure.ac', not in 'configure.in'. Adjust comments. ($AUTOCONF, $AUTOHEADER, $AUTORECONF): Remove workaround for the infamous debian autoconf wrapper: we don't need such workaround anymore now that we name our autoconf input as 'configure.ac'. For more information, see commit v1.11-564-g63da492 "test defs: hack to support autoconf-wrapper programs" of 16-12-2011. * tests/README: Use 'configure.ac', not 'configure.in'. * Many many tests: Likewise. * tests/backcompat3.test: Adjust to avoid spurious failures. * tests/backcompat5.test: Likewise. * tests/missing6.test: Likewise. * tests/backcompat6.test: Likewise, and extend a bit since we are at it.
Stefano Lattarini 641a5a4b 2012-02-16T10:46:23 maint: run "make update-copyright"
Stefano Lattarini e6c40d4b 2012-02-12T15:06:17 Merge branch 'yacc-work' into yl-work-for-master * yacc-work: (37 commits) fixup: list of yacc/lex tests was botched tests: work around bug#7884 in many yacc/lex tests yacc/lex tests: remove an unneeded workaround for bug#8485 yacc/lex tests: avoid too much failures with FreeBSD make yacc-dist-nobuild.test: add reference to bug#7884 yacc tests: fix bug in 'yacc-cxx.test' lex tests: fix spurious link errors on Solaris lex: "make clean" removes .c files from non-distributed .l lex tests: make test on Lex dependency tracking more "semantic" lex tests: remove erroneous check about ylwrap distribution yacc tests: "make clean" removes C++ files from non-distributed .y tests: add a workaround for automake bug#8485 tests: add a couple of inter-tests reference lex tests: require just `lex' instead of `flex' fix typo in ChangeLog (2011-05-04) tests defs: use `skip_' for skipping yacc/lex related tests lex/yacc tests: remove redundant $distdir definition coverage: test lex-generated "#line" directives postprocessing tests: minor improvements to a couple of yacc tests tests: fix spurious failure in test 'yacc-d-cxx.test' ... + Extra non-trivial edits: * tests/defs.in: Delete; the differences from maint has been merged into 'tests/defs' and 'tests/defs-static.in'. * tests/defs (yacc, lex): Use 'skip_all_', not 'skip_', to skip the whole test case if yacc (resp. lex) is missing. (bison): New, set up the environment so that 'bison -y' will be used as the yacc program. (useless_vpath_rebuild, yl_distcheck): Moved in from 'tests/defs.in'. * tests/defs-static.in ($YACC, $LEX): Default to the values determined at configure time, and allow them to be overridden by the more namespace-safe variables '$AM_TESTSUITE_YACC' and '$AM_TESTSUITE_LEX' respectively. * tests/Makefile.am (do_subst): Also substitute '@YACC@' and '@LEX@'. * Several tests: Fix requirements declarations, by preferring 'lex' and 'yacc' over 'flex' and 'bison' whenever possible.
Stefano Lattarini b5c39684 2011-10-24T23:18:34 tests: fix spurious failures due to missing 'yywrap()' function The AC_PROG_LEX Autoconf macro does not diagnose a failure to find the "lex library" expected to provide a `yywrap' function (function which is required to link most lex-generated programs). On the contrary, when all the link attempts (i.e., with `-ll' and `-lfl') fail, configure declares that no lex library is needed, and simply proceeds with the configuration process -- only for the build to possibly fail later, at make time. This behaviour is intended; the Autoconf manual reads: ``You are encouraged to use Flex in your sources, since it is both more pleasant to use than plain Lex and the C source it produces is portable. In order to ensure portability, however, you must either provide a function `yywrap' or, if you don't use it (e.g., your scanner has no `#include'-like feature), simply include a `%noyywrap' statement in the scanner's source.'' This AC_PROG_LEX behaviour is causing some spurious failures of the Automake testsuite in environments which lack a proper library providing `yywrap' (this happens for example on Fedora-based systems). The proper workaround is to simply provide a fall-back implementation of `yywrap' in our lexers. See also partially-overlapping commit `v1.11-871-geb147a1' (from the 'testsuite-work' branch), which was motivated by similar spurious failures experienced when cross-compiling. Reported by Jim Meyering: <http://lists.gnu.org/archive/html/automake-patches/2011-10/msg00092.html> * tests/cond35.test: Provide a dummy `yywrap' function. * tests/lex3.test: Likewise. * tests/lexvpath.test: Likewise. * tests/silent-lex-generic.test: Likewise. * tests/silent-lex-gcc.test: Likewise.
Stefano Lattarini 0ea1177e 2011-07-16T00:19:56 tests: fix typos, grammaros and other blunders in comments
Stefano Lattarini b1b5ea5c 2011-06-01T17:43:44 lex tests: avoid possible hang; fix and extend * tests/lex3.test (foo.l:yywrap): Return 1, not 0, to avoid hangs. Bug introduced in commit 'v1.11-871-geb147a1'. (Makefile.am): Do not add `@LEXLIB@' to `$(LDADD)', as we define our own `yywrap' function. * tests/lex.test (tscan.l): In `yywrap', return 1, not 0, for consistency with the default flex implementation. * tests/lex-libobj.test (yywrap.c): Likewise. * tests/lex-subobj-nodep.test (s1.l): Likewise. * tests/lexvpath.test (foo.c): Likewise. * tests/silent-lex-gcc (foo.l): Likewise. * tests/silent-lex-generic (foo.l): Likewise. * tests/silent-many-gcc (foo5.l): Likewise. * tests/silent-many-generic (foo5.l): Likewise. * tests/lex-lib.test (mu.c): Likewise. Update heading comments, to refer to ... * tests/lex-lib-external.test: ... this new test, which checks that we can get use the `yywrap' function from a system-wide library, if that's available.
Stefano Lattarini eb147a19 2011-05-25T19:05:15 lex tests: avoid spurious failures when LEXLIB isn't found The AC_PROG_LEX Autoconf macro does not diagnose a failure to find the "lex library" expected to provide a `yywrap' function (function which is required to link most lex-generated programs). On the contrary, when all the link attempts (i.e., with `-ll' and `-lfl') fail, configure declares that no lex library is needed, and simply proceeds with the configuration process -- only for the build to possibly fail later, at make time. This behaviour might be (partly) intended; the Autoconf manual reads: ``You are encouraged to use Flex in your sources, since it is both more pleasant to use than plain Lex and the C source it produces is portable. In order to ensure portability, however, you must either provide a function `yywrap' or, if you don't use it (e.g., your scanner has no `#include'-like feature), simply include a `%noyywrap' statement in the scanner's source.'' This AC_PROG_LEX behaviour is causing some spurious failures of the Automake testsuite in environments which lack a proper library providing `yywrap' (this happens for example in Linux->MinGW cross compilations). But at this point is clear that a proper workaround is to simply provide a fall-back implementation of `yywrap' in our lexers. * tests/cond35.test: Provide a dummy `yywrap' function. * tests/lex3.test: Likewise. * tests/lexvpath.test: Likewise. * tests/silent-many-gcc.test: Likewise. * tests/silent-many-generic.test: Likewise. * tests/silent-lex-gcc.test: Likewise, and a dummy `main' too. * tests/silent-lex-generic.test: Likewise. * tests/lex-lib.test: New test. * tests/lex-libobj.test: New test. * tests/lex-nowrap.test: New test. * tests/Makefile.am (TESTS): Update. * THANKS: Update. Thanks to Russ Allbery for the suggestion.
Stefano Lattarini 7a7fc565 2011-05-23T21:53:44 testsuite: require C compiler explicitly in tests needing it The list of the test scripts which needed a C compiler but failed to require it explicitly has been found by running: $ am_explicit_skips=yes CC=false make check and looking for tests that reported FAIL instead of SKIP. After the present change, all those previously failing tests either pass or get correctly skipped. * tests/aclocal4.test ($required): Add `cc'. * tests/ansi.test: Likewise. * tests/ansi10.test: Likewise. * tests/ansi3.test: Likewise. * tests/ansi3b.test: Likewise. * tests/ansi5.test: Likewise. * tests/ansi6.test: Likewise. * tests/ansi7.test: Likewise. * tests/ansi9.test: Likewise. * tests/backcompat6.test: Likewise. * tests/canon7.test: Likewise. * tests/check5.test: Likewise. * tests/check7.test: Likewise. * tests/check8.test: Likewise. * tests/cond4.test: Likewise. * tests/cond11.test: Likewise. * tests/cond16.test: Likewise. * tests/cond18.test: Likewise. * tests/cond19.test: Likewise. * tests/cond22.test: Likewise. * tests/cond30.test: Likewise. * tests/cond31.test: Likewise. * tests/cond32.test: Likewise. * tests/cond34.test: Likewise. * tests/cond35.test: Likewise. * tests/cond39.test: Likewise. * tests/condd.test: Likewise. * tests/cygnus-dependency-tracking.test: Likewise. * tests/depcomp2.test: Likewise. * tests/depcomp6.test: Likewise. * tests/depcomp7.test: Likewise. * tests/depcomp8a.test: Likewise. * tests/depcomp8b.test: Likewise. * tests/depdist.test: Likewise. * tests/depend2.test: Likewise. * tests/depend5.test: Likewise. * tests/distcleancheck.test: Likewise. * tests/distname.test: Likewise. * tests/exeext.test: Likewise. * tests/exeext4.test: Likewise. * tests/extradep.test: Likewise. * tests/extradep2.test: Likewise. * tests/gnits2.test: Likewise. * tests/gnits3.test: Likewise. * tests/instdir-ltlib.test: Likewise. * tests/instdir-prog.test: Likewise. * tests/instfail.test: Likewise. * tests/instfail-libtool.test: Likewise. * tests/lex3.test: Likewise. * tests/lex5.test: Likewise. * tests/lexvpath.test: Likewise. * tests/lex-subobj-nodep.test: Likewise. * tests/lflags.test: Likewise. * tests/libobj-basic.test: Likewise. * tests/libobj2.test: Likewise. * tests/libobj7.test: Likewise. * tests/libobj10.test: Likewise. * tests/libobj16a.test: Likewise. * tests/libobj16b.test: Likewise. * tests/libobj17.test: Likewise. * tests/libobj19.test: Likewise. * tests/libtool2.test: Likewise. * tests/libtool3.test: Likewise. * tests/libtool7.test: Likewise. * tests/libtool9.test: Likewise. * tests/libtoo10.test: Likewise. * tests/libtoo11.test: Likewise. * tests/ltcond.test: Likewise. * tests/ltcond2.test: Likewise. * tests/ltconv.test: Likewise. * tests/ltinit.test: Likewise. * tests/ltlibsrc.test: Likewise. * tests/ltorder.test: Likewise. * tests/nobase.test: Likewise. * tests/nobase-libtool.test: Likewise. * tests/mmodely.test: Likewise. * tests/parallel-tests5.test: Likewise. * tests/parallel-tests-suffix-prog.test: Likewise. * tests/parallel-tests-ext-driver-prog.test: Likewise. * tests/posixsubst-ldadd.test: Likewise. * tests/posixsubst-libraries.test: Likewise. * tests/posixsubst-ltlibraries.test: Likewise. * tests/posixsubst-programs.test: Likewise. * tests/posixsubst-sources.test: Likewise. * tests/pr87.test: Likewise. * tests/pr204.test: Likewise. * tests/pr224.test: Likewise. * tests/pr300-lib.test: Likewise. * tests/pr300-ltlib.test: Likewise. * tests/pr300-prog.test: Likewise. * tests/pr401.test: Likewise. * tests/pr401b.test: Likewise. * tests/pr401c.test: Likewise. * tests/remake-gnulib-add-acsubst.test: Likewise. * tests/remake-gnulib-add-header.test: Likewise. * tests/regex.test: Likewise. * tests/repeated-options.test: Likewise. * tests/silent.test: Likewise. * tests/silent3.test: Likewise. * tests/silent9.test: Likewise. * tests/silent-lex-generic.test: Likewise. * tests/silent-many-generic.test: Likewise. * tests/silent-yacc-generic.test: Likewise. * tests/specflg7.test: Likewise. * tests/specflg9.test: Likewise. * tests/specflg10.test: Likewise. * tests/stdinc.test: Likewise. * tests/strip.test: Likewise. * tests/strip2.test: Likewise. * tests/strip3.test: Likewise. * tests/subdirbuiltsources.test: Likewise. * tests/subobj3.test: Likewise. * tests/subobj6.test: Likewise. * tests/subobj11a.test: Likewise. * tests/subpkg.test: Likewise. * tests/subst2.test: Likewise. * tests/subst3.test: Likewise. * tests/substref.test: Likewise. * tests/substre2.test: Likewise. * tests/suffix5.test: Likewise. * tests/suffix8.test: Likewise. * tests/suffix10.test: Likewise. * tests/suffix11.test: Likewise. * tests/suffix12.test: Likewise. * tests/suffix13.test: Likewise. * tests/target-cflags.test: Likewise. * tests/transform.test: Likewise. * tests/transform2.test: Likewise. * tests/yacc-basic.test: Likewise. * tests/yacc-d-basic.test: Likewise. * tests/yacc-clean.test: Likewise. * tests/yacc-dist-nobuild.test: Likewise. * tests/yacc-nodist.test: Likewise. * tests/yaccvpath.test: Likewise. * tests/yacc-d-vpath.test: Likewise. * tests/yacc4.test: Likewise. * tests/yacc7.test: Likewise. * tests/yacc8.test: Likewise. * tests/yaccdry.test: Likewise. * tests/yflags-cmdline-override.test: Likewise. * tests/yflags-force-override.test: Likewise. * tests/python-virtualenv.test: Likewise. Also, improve skip messages. * tests/subobj5.test ($required): Add `cc'. (Makefile.am): Set `AUTOMAKE_OPTIONS' to `subdir-objects', and add new checking rules `test-build' and `test-distdir'. Extend the test by building and examining the distdir, the program, and the object files. * tests/postproc.test ($required): Add `cc'. Avoid the explicit `|| Exit $?' after call to configure, which is now either redundant (e.g., when `am_explicit_skips' is unset), or counter-productive (e.g., when `am_explicit_skips' is set to "yes"). * tests/pr243.test: Likewise. * tests/pr266.test: Likewise. * tests/pr220.test: Simplify so that it doesn't require a C compiler anymore. * tests/subdir5.test: Likewise. * tests/subdir8.test: Likewise. * tests/lflags.test: Likewise. * tests/yflags.test: Likewise. * tests/yflags-force-conditional.test: Likewise. * tests/lflags2.test: Simplify so that it doesn't require a C++ compiler anymore. * tests/yflags2.test: Likewise. * tests/autohdrdry.test (configure.in): Remove unneeded call to `AC_PROG_CC'. * tests/pr287.test: Likewise. * tests/check6.test: Likewise. * tests/cond21.test: Likewise, plus some cosmetic adjustments. * tests/upc.test: Skip if configure fails with status `77'. * tests/upc3.test: Likewise. * tests/vala4.test: Likewise. * tests/nostdinc.test: Likewise. Also, make grepping checks on `Makefile.in'. Update heading comments. * tests/compile5.test: When we must skip, skip explicitly, and with a meaningful message. * tests/instspc-tests.sh: When running in "test-build" or "test-install" mode (as determined by the value of variable `$instspc_action'), require `cc'. Adjust comments. * tests/depmod-tests.sh: Likewise.
Stefano Lattarini 6f8f38cf 2011-05-03T17:51:42 tests: drop useless requirements of gcc (plus testsuite tweakings) * tests/libobj14.test ($required): Remove 'gcc', as we never run the C compiler. * tests/targetclash.test: Likewise. * tests/ansi6.test ($required): Remove 'gcc', as any working C compiler should be enough. * tests/ansi7.test: Likewise. * tests/ansi9.test: Likewise. * tests/ansi10.test: Likewise. * tests/lex5.test: Likewise. * tests/lexvpath.test: Likewise. * tests/mmodely.test: Likewise. * tests/pr204.test: Likewise. * tests/pr300-lib.test: Likewise. * tests/pr300-prog.test: Likewise. * tests/primary3.test: Likewise. * tests/specflg7.test: Likewise. * tests/specflg8.test: Likewise. * tests/subdir5.test: Likewise. * tests/subdir8.test: Likewise. * tests/subobj6.test: Likewise. * tests/subst3.test: Likewise. * tests/substre2.test: Likewise. * tests/yacc6.test: Likewise. * tests/yacc8.test: Likewise. * tests/depcomp2.test: Likewise. Also, avoid clobbering user-set CFLAGS. * tests/lex3.test: Likewise. * tests/ansi3.test: Likewise. Also, avoid 'CC=gcc' in configure. * tests/ansi3b.test: Likewise. * tests/ansi5.test: Likewise. * tests/autohdr4.test ($required): Remove 'gcc', as any working C compiler should be enough. Also, do not reject slow dependency extractors (which we might be forced to use now that $CC is not necessarily gcc anymore). * tests/cond16.test ($required): Remove 'gcc', as any working C compiler should be enough. Since we are at it, throw in few minor tweakings (mostly cosmetic, stylistic, or consistency-related). * tests/cond18.test: Likewise. * tests/cond35.test: Likewise. * tests/gnits2.test: Likewise. * tests/libtool3.test: Likewise. * tests/libtool7.test: Likewise. * tests/libtool9.test: Likewise. * tests/ltcond.test: Likewise. * tests/ltcond2.test: Likewise. * tests/ltconv.test: Likewise. * tests/ltlibsrc.test: Likewise. * tests/nobase.test: Likewise. * tests/nobase-libtool.test: Likewise. * tests/pr220.test: Likewise. * tests/pr224.test: Likewise. * tests/pr300-ltlib.test: Likewise. * tests/pr401.test: Likewise. * tests/pr401b.test: Likewise. * tests/pr401c.test: Likewise. * tests/subpkg.test: Likewise. * tests/target-cflags.test: Likewise. * tests/transform.test: Likewise. * tests/yacc4.test: Likewise. * tests/cond19.test: Likewise. Also, avoid clobbering user-set CFLAGS. * tests/cond4.test: Likewise. * tests/depend2.test: Likewise. * tests/pr87.test: Likewise. * tests/subobj3.test: Likewise. * tests/substref.test: Likewise.
Stefano Lattarini d986a800 2011-04-15T18:12:05 lex/yacc tests: remove redundant $distdir definition * tests/lex3.test ($distdir): Remove definition, that's already done in `tests/defs'. * tests/lexvpath.test: Likewise. * tests/yacc-basic.test: Likewise. * tests/yacc-cxx.test: Likewise. * tests/yacc-d-basic.test: Likewise. * tests/yacc-d-cxx.test: Likewise. * tests/yacc-d-vpath.test: Likewise. * tests/yacc-dist-nobuild-subdir.test: Likewise. * tests/yacc-dist-nobuild.test: Likewise. * tests/yacc-mix-c-cxx.test: Likewise. * tests/yaccvpath.test: Likewise.
Stefano Lattarini 531cc871 2011-04-12T17:25:42 Merge branch 'maint' (with edits) test defs: define default $distdir (help reducing duplication) * tests/defs ($distdir): New variable, might be used in testcases checking distribution-related features. * tests/pr9.test: Use it. * tests/subdir9.test: Likewise. * tests/lex3.test: Likewise. * tests/lexvpath.test: Likewise. * tests/remake-moved-m4-file.test: Likewise. * tests/remake-renamed-m4-file.test: Likewise. * tests/remake-renamed-m4-macro-and-file.test: Likewise. * tests/yacc-basic.test: Likewise. * tests/yacc-d-basic.test: Likewise. * tests/yacc-d-vpath.test: Likewise. * tests/yacc-dist-nobuild.test: Likewise. * tests/vtexi3.test: Add comment explaining why we redefine $distdir in this test.
Stefano Lattarini f02ce8d9 2011-04-11T15:15:55 tests: do not uselessly require GNU make or gcc in a few tests * tests/lex3.test: Remove gcc from requirements, as any working C compiler should be ok. Consequently, do not clobber user CFLAGS. Also, remove GNUmake from requirements; it was added (see commit `Release-1-8-103-g0d2f592') because this test fails with FreeBSD make due to VPATH issues -- but so do many other yacc-related and lex-related tests currently, and requiring GNU make in all of them would unacceptably reduce coverage. * tests/lexvpath.test: Remove gcc from requirements, as any working C compiler should be ok. * tests/yacc4.test: Likewise. * tests/yacc8.test: Likewise. * tests/lex5.test: Likewise. Also, do not require anymore GNU make; to compensate, explicitly call "$MAKE Makefile" to update the out-of-date Makefile if $MAKE is not GNU make.
Stefano Lattarini aa9a269b 2011-01-28T23:04:14 configure: look for a lex program to be used by the testsuite This will allow the testcases requiring a 'lex' program to run also with vendor/legacy lex implementations, not only with 'flex'. * configure.ac: Look for a lex program, using AC_CHECK_PROGS. * tests/defs.in: New required entry 'lex'. ($LEX): Let the user override the lex program to be used by the testsuite. * tests/cond35.test ($required): Require 'lex', not 'flex'. * tests/cond36.test: Likewise. * tests/lexv3.test: Likewise. * tests/lexv3.test: Likewise. * tests/silent-lex-gcc.test: Likewise. * tests/silent-lex-generic.test: Likewise. * tests/silent-many-gcc.test: Likewise. * tests/silent-many-generic.test:likewise. * tests/lexvpath.test: Likewise, and fix typo in comments.
Stefano Lattarini 79103003 2011-01-08T19:40:04 tests: enable 'errexit' shell flag by default. * tests/defs: Enable `errexit' shell flag (near the end). Removed redundant comment about the enabling of shell traces. * tests/README (Writing test cases): Update, and use nicer formatting in a couple of places. * All tests: Adjusted by removing now-redundant calls to 'set -e'.
Stefano Lattarini d4dcf503 2010-05-07T15:07:37 Extend, fix and improve tests on Lex and Yacc support. * tests/lexcpp.test: New test script, on support for Lex + C++. * tests/lexvpath.test: New test script, test build and rebuild rules for lexers in VPATH setup. * tests/yacc-basic.test: New test script, run simple "semantic" checks on basic Yacc support (similarly to what lex3.test does for Lex support). * tests/lex.test: Don't create useless dummy source file joe.l. Remove extra blank lines. * tests/lex4.test: Add trailing `:' command. Do not create dummy useless lex source file. * tests/lex2.test: Likewise. Call automake with the `-a' option, so that it doesn't fail for the absence of `ylwrap' script. Make grepping of automake stderr stricter. * tests/yacc7.test: Add trailing `:' command. Enable `errexit' shell flag earlier (just after having sourced ./defs). * tests/yacc4.test: Likewise. Also ... (configure.in): Use pre-populated skeleton set up by ./defs, instead of writing one from scratch. Other minor cosmetic changes. * tests/yacc5.test: Likewise. * tests/yaccvpath.test: Likewise. Also ... ($distdir): New variable. Use it throughout. * tests/lex5.test: Likewise. * tests/lex3.test: Likewise. Check the distdir, rather than grepping the distribution tarball. Extend the test on the created binary, and be sure to avoid hangs. Add some comments. * tests/yacc.test: Use stricter grepping. Add trailing `:'. * tests/yacc6.test: Likewise. * tests/yacc3.test: Likewise. Do not create the unused file `Makefile.sed'. Remove useless rules from Makefile.am. Other minor cosmetic changes. * tests/yacc2.test: Make grepping of generated `Makefile.in' and of automake error messages stricter. Do not redirect output of grep to /dev/null. Move call to aclocal earlier. Reduce the number of empty blank lines. Fix a typo in comments. * tests/yacc8.test: Fixed bugs that reduced the completeness of the tests. Added trailing `:' command. (configure.in): Use pre-populated skeleton set up by ./defs, instead of writing one from scratch. * tests/yaccpp.test: Test also extensions `.y++', `.ypp', and `.yxx', rather than only `.yy'. * tests/Makefile.am (TESTS): Update.