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.
(cherry picked from commit 42f8609bbd033edf6cca102ca080eade94ed08ef)

diff --git a/ChangeLog b/ChangeLog
index f988159524385dbfcde89a4616a94efde166626e..18c5898847c4af42c3a0e8d4d423d199c0313f9e 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -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.

diff --git a/src/scan-code.l b/src/scan-code.l
index d976517d6fbacc08d32709e4890c21fb1a590d30..235800f8ca56c6e8b441cbe018c667369897600a 100644 (file)
--- a/src/scan-code.l
+++ b/src/scan-code.l
@@ -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"
 
 %{

diff --git a/src/scan-gram.l b/src/scan-gram.l
index 422eae64d19f6dadbdfc3683bf5e2bbe8a465b23..55ca3ac64572e2534e4bb7d1c3da7b1a03c2e770 100644 (file)
--- a/src/scan-gram.l
+++ b/src/scan-gram.l
@@ -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"
 
 %{

diff --git a/src/scan-skel.l b/src/scan-skel.l
index 6ef53511a674507ec2d42ca179f887e7e3d43bbb..6841b4a4eccaf817e78ebfc2e52cf7a8a1d20f1d 100644 (file)
--- a/src/scan-skel.l
+++ b/src/scan-skel.l
@@ -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"
 
 %{