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Commit8b6f5f2

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Use -Wformat-security when available
1 parent6fe5e4e commit8b6f5f2

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2 files changed

+60
-0
lines changed

2 files changed

+60
-0
lines changed

‎configure

Lines changed: 58 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -4117,6 +4117,64 @@ if test x"$pgac_cv_prog_cc_cflags__Wendif_labels" = x"yes"; then
41174117
CFLAGS="$CFLAGS -Wendif-labels"
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fi
41194119

4120+
# This was included in -Wall/-Wformat in older GCC versions
4121+
{ $as_echo "$as_me:$LINENO: checking whether $CC supports -Wformat-security" >&5
4122+
$as_echo_n "checking whether $CC supports -Wformat-security... " >&6; }
4123+
if test "${pgac_cv_prog_cc_cflags__Wformat_security+set}" = set; then
4124+
$as_echo_n "(cached) " >&6
4125+
else
4126+
pgac_save_CFLAGS=$CFLAGS
4127+
CFLAGS="$pgac_save_CFLAGS -Wformat-security"
4128+
cat >conftest.$ac_ext <<_ACEOF
4129+
/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
4134+
4135+
int
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main ()
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{
4138+
4139+
;
4140+
return 0;
4141+
}
4142+
_ACEOF
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rm -f conftest.$ac_objext
4144+
if { (ac_try="$ac_compile"
4145+
case "(($ac_try" in
4146+
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
4148+
esac
4149+
eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
4150+
$as_echo "$ac_try_echo") >&5
4151+
(eval "$ac_compile") 2>conftest.er1
4152+
ac_status=$?
4153+
grep -v '^ *+' conftest.er1 >conftest.err
4154+
rm -f conftest.er1
4155+
cat conftest.err >&5
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$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
4157+
(exit $ac_status); } && {
4158+
test -z "$ac_c_werror_flag" ||
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test ! -s conftest.err
4160+
} && test -s conftest.$ac_objext; then
4161+
pgac_cv_prog_cc_cflags__Wformat_security=yes
4162+
else
4163+
$as_echo "$as_me: failed program was:" >&5
4164+
sed 's/^/| /' conftest.$ac_ext >&5
4165+
4166+
pgac_cv_prog_cc_cflags__Wformat_security=no
4167+
fi
4168+
4169+
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
4170+
CFLAGS="$pgac_save_CFLAGS"
4171+
fi
4172+
{ $as_echo "$as_me:$LINENO: result: $pgac_cv_prog_cc_cflags__Wformat_security" >&5
4173+
$as_echo "$pgac_cv_prog_cc_cflags__Wformat_security" >&6; }
4174+
if test x"$pgac_cv_prog_cc_cflags__Wformat_security" = x"yes"; then
4175+
CFLAGS="$CFLAGS -Wformat-security"
4176+
fi
4177+
41204178
# Disable strict-aliasing rules; needed for gcc 3.3+
41214179
{ $as_echo "$as_me:$LINENO: checking whether $CC supports -fno-strict-aliasing" >&5
41224180
$as_echo_n "checking whether $CC supports -fno-strict-aliasing... " >&6; }

‎configure.in

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -429,6 +429,8 @@ if test "$GCC" = yes -a "$ICC" = no; then
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# These work in some but not all gcc versions
430430
PGAC_PROG_CC_CFLAGS_OPT([-Wdeclaration-after-statement])
431431
PGAC_PROG_CC_CFLAGS_OPT([-Wendif-labels])
432+
# This was included in -Wall/-Wformat in older GCC versions
433+
PGAC_PROG_CC_CFLAGS_OPT([-Wformat-security])
432434
# Disable strict-aliasing rules; needed for gcc 3.3+
433435
PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing])
434436
# Disable optimizations that assume no overflow; needed for gcc 4.3+

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