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Pacify "gcc -Wunused" for the input function from Flex.

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Reported by Alex Rozenman.  This warning shows up with gcc-4.3.0
and later.
* src/scan-code.l: Add "%option noinput", which I cannot find in
the Flex manual, but which Flex has supported since at least as
far back as 2.5.4.  However, if any of our developers still use
Flex 2.5.4, they'll need to stop configuring with
--enable-gcc-warnings because "%option noinput" didn't work
correctly until Flex 2.5.6.
* src/scan-gram.l: Likewise.
* src/scan-skel.l: Likewise.
(cherry picked from commit 42f8609bbd)
This commit is contained in:
Joel E. Denny
2009-08-01 17:51:34 -04:00
parent 5add20ab89
commit 8d90395dd7
4 changed files with 17 additions and 3 deletions
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14
ChangeLog
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@@ -1,3 +1,17 @@
2009-08-01 Joel E. Denny <jdenny@clemson.edu>
Pacify "gcc -Wunused" for the input function from Flex.
Reported by Alex Rozenman. This warning shows up with gcc-4.3.0
and later.
* src/scan-code.l: Add "%option noinput", which I cannot find in
the Flex manual, but which Flex has supported since at least as
far back as 2.5.4. However, if any of our developers still use
Flex 2.5.4, they'll need to stop configuring with
--enable-gcc-warnings because "%option noinput" didn't work
correctly until Flex 2.5.6.
* src/scan-gram.l: Likewise.
* src/scan-skel.l: Likewise.
2009-07-31 Alex Rozenman <rozenman@gmail.com>
Fix --enable-gcc-warnings problems.

2
src/scan-code.l
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@@ -17,7 +17,7 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
%option debug nodefault nounput noyywrap never-interactive
%option debug nodefault noinput nounput noyywrap never-interactive
%option prefix="code_" outfile="lex.yy.c"
%{

2
src/scan-gram.l
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@@ -18,7 +18,7 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
%option debug nodefault nounput noyywrap never-interactive
%option debug nodefault noinput nounput noyywrap never-interactive
%option prefix="gram_" outfile="lex.yy.c"
%{

2
src/scan-skel.l
View File

@@ -18,7 +18,7 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
%option nodefault noyywrap nounput never-interactive debug
%option nodefault noyywrap noinput nounput never-interactive debug
%option prefix="skel_" outfile="lex.yy.c"
%{