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Fix "Bison blows chunks on empty file" bug.

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Work around SunOS 4.1.4 porting problem with <sys/resource.h>.
Don't check for sys/wait.h twice, with two different algorithms.
This commit is contained in:
Paul Eggert
2003-03-13 07:13:05 +00:00
parent 379f0ac840
commit 537636c7e5
1 changed files with 18 additions and 0 deletions
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@@ -1,5 +1,23 @@
2003-03-12 Paul Eggert <eggert@twinsun.com>
* scan-gram.l (YY_USER_INIT): Initialize code_start, too.
(<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
cursor, instead of leaving it undefined. This fixes a bug
reported by Tim Van Holder in
<http://mail.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
* tests/input.at (Torturing the Scanner): Test the scanner on
an empty input file, which was Tim Van Holder's test case.
* m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
<sys/resource.h> can be included, include sys/time.h and
sys/times.h first, if available. This works around the SunOS
4.1.4 porting bug reported by Bruce Becker in
<http://mail.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
* m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
AC_HEADER_SYS_WAIT.
Merge changes from gnulib. This was prompted because the CVS
snapshot didn't build on Solaris 7 due to strnlen problems.