[SCM] gawk branch, master, updated. gawk-4.1.0-4267-g7d775b9

[Arnold Robbins]

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- Log -----------------------------------------------------------------
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=7d775b9560e8ad2eb1f55a843e27f3b929e35223

commit 7d775b9560e8ad2eb1f55a843e27f3b929e35223
Merge: d8f4cea a8f16eb
Author: Arnold D. Robbins <arnold@skeeve.com>
Date:   Wed Apr 14 17:35:27 2021 +0300

    Merge branch 'gawk-5.1-stable'

diff --cc ChangeLog
index 56deef6,64dba79..9b742db
--- a/ChangeLog
+++ b/ChangeLog
@@@ -1,9 -1,18 +1,24 @@@
+ 2021-04-14         Arnold D. Robbins     <arnold@skeeve.com>
+ 
+       Fix up lint warnings for "no effect" to avoid false warnings.
+       Straighten out the messages, and remove the run-time warning,
+       since a parse-time warning is already issued. Thanks to
+       Arkadiusz Drabczyk <arkadiusz@drabczyk.org> for the initial
+       bug report.
+ 
+       * awkgram.y (isnoeffect): Add more opcodes that are "no effect".
+       (add_lint): For LINT_no_effect, check that all the opcodes in the
+       list are "no effect". Only if so, issue the warning. Remove the
+       addition of the run-time warning.
+       * interpret.h (r_interpret): Remove LINT_no_effect from Op_lint
+       case.
+ 
 +2021-03-21         Arnold D. Robbins     <arnold@skeeve.com>
 +
 +      * str_array.c (fnv1a_hash_string): New function.
 +      (str_array_init): Use fnv1a_hash_string if AWK_HASH env var
 +      set to "fnv1a".
 +
  2021-02-13         Arnold D. Robbins     <arnold@skeeve.com>
  
        * io.c (nextfile): Use the value of ARGC directly in the for

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog         | 15 +++++++++++++++
 awkgram.c         | 36 +++++++++++++++++++++++++++---------
 awkgram.y         | 36 +++++++++++++++++++++++++++---------
 interpret.h       |  4 ----
 test/ChangeLog    |  6 ++++++
 test/lintwarn.ok  | 12 ++++++------
 test/noeffect.awk | 18 ++++++++++++++++++
 test/noeffect.ok  | 12 +++++++-----
 8 files changed, 106 insertions(+), 33 deletions(-)


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