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b5c39684
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2011-10-24T23:18:34
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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.
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531cc871
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2011-04-12T17:25:42
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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
$distdir in this test.
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79103003
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2011-01-08T19:40:04
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tests: enable 'errexit' shell flag by default.
* tests/defs: Enable `errexit' shell flag (near the end).
Removed redundant comment about the enabling of shell traces.
* tests/README (Writing test cases): Update, and use nicer
formatting in a couple of places.
* All tests: Adjusted by removing now-redundant calls to
'set -e'.
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d4dcf503
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2010-05-07T15:07:37
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Extend, fix and improve tests on Lex and Yacc support.
* tests/lexcpp.test: New test script, on support for Lex + C++.
* tests/lexvpath.test: New test script, test build and rebuild
rules for lexers in VPATH setup.
* tests/yacc-basic.test: New test script, run simple "semantic"
checks on basic Yacc support (similarly to what lex3.test does
for Lex support).
* tests/lex.test: Don't create useless dummy source file joe.l.
Remove extra blank lines.
* tests/lex4.test: Add trailing `:' command. Do not create dummy
useless lex source file.
* tests/lex2.test: Likewise. Call automake with the `-a' option,
so that it doesn't fail for the absence of `ylwrap' script. Make
grepping of automake stderr stricter.
* tests/yacc7.test: Add trailing `:' command. Enable `errexit'
shell flag earlier (just after having sourced ./defs).
* tests/yacc4.test: Likewise. Also ...
(configure.in): Use pre-populated skeleton set up by ./defs,
instead of writing one from scratch.
Other minor cosmetic changes.
* tests/yacc5.test: Likewise.
* tests/yaccvpath.test: Likewise. Also ...
($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.
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