isa/sudo
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add -Wvla and -Walloca to --enable-warnings

Browse Source
This commit is contained in:
Todd C. Miller
2022-11-15 11:05:42 -07:00
parent 3ecfa025b8
commit bef72f76f6
2 changed files with 117 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

114
configure vendored
View File

@@ -32294,6 +32294,120 @@ else $as_nop
: :
fi fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -Wvla" >&5
printf %s "checking whether C compiler accepts -Wvla... " >&6; }
if test ${ax_cv_check_cflags___Wvla+y}
then :
printf %s "(cached) " >&6
else $as_nop
ax_check_save_flags=$CFLAGS
CFLAGS="$CFLAGS -Wvla"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main (void)
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
ax_cv_check_cflags___Wvla=yes
else $as_nop
ax_cv_check_cflags___Wvla=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
CFLAGS=$ax_check_save_flags
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___Wvla" >&5
printf "%s\n" "$ax_cv_check_cflags___Wvla" >&6; }
if test x"$ax_cv_check_cflags___Wvla" = xyes
then :
CFLAGS="$CFLAGS -Wvla"
else $as_nop
:
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -Walloca" >&5
printf %s "checking whether C compiler accepts -Walloca... " >&6; }
if test ${ax_cv_check_cflags___Walloca+y}
then :
printf %s "(cached) " >&6
else $as_nop
ax_check_save_flags=$CFLAGS
CFLAGS="$CFLAGS -Walloca"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main (void)
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
ax_cv_check_cflags___Walloca=yes
else $as_nop
ax_cv_check_cflags___Walloca=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
CFLAGS=$ax_check_save_flags
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___Walloca" >&5
printf "%s\n" "$ax_cv_check_cflags___Walloca" >&6; }
if test x"$ax_cv_check_cflags___Walloca" = xyes
then :
CFLAGS="$CFLAGS -Walloca"
else $as_nop
:
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -Wtrampolines" >&5
printf %s "checking whether C compiler accepts -Wtrampolines... " >&6; }
if test ${ax_cv_check_cflags___Wtrampolines+y}
then :
printf %s "(cached) " >&6
else $as_nop
ax_check_save_flags=$CFLAGS
CFLAGS="$CFLAGS -Wtrampolines"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main (void)
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
ax_cv_check_cflags___Wtrampolines=yes
else $as_nop
ax_cv_check_cflags___Wtrampolines=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
CFLAGS=$ax_check_save_flags
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___Wtrampolines" >&5
printf "%s\n" "$ax_cv_check_cflags___Wtrampolines" >&6; }
if test x"$ax_cv_check_cflags___Wtrampolines" = xyes
then :
CFLAGS="$CFLAGS -Wtrampolines"
else $as_nop
:
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC supports the fallthrough attribute" >&5 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC supports the fallthrough attribute" >&5
printf %s "checking whether $CC supports the fallthrough attribute... " >&6; } printf %s "checking whether $CC supports the fallthrough attribute... " >&6; }
if test ${sudo_cv_var_fallthrough_attribute+y} if test ${sudo_cv_var_fallthrough_attribute+y}

3
configure.ac
View File

@@ -5025,6 +5025,9 @@ if test -n "$GCC"; then
dnl dnl
CFLAGS="${CFLAGS} -Wall -Wsign-compare -Wpointer-arith -Wno-unknown-pragmas -Wmissing-prototypes -Wwrite-strings" CFLAGS="${CFLAGS} -Wall -Wsign-compare -Wpointer-arith -Wno-unknown-pragmas -Wmissing-prototypes -Wwrite-strings"
AX_CHECK_COMPILE_FLAG([-Wshadow], [CFLAGS="$CFLAGS -Wshadow"]) AX_CHECK_COMPILE_FLAG([-Wshadow], [CFLAGS="$CFLAGS -Wshadow"])
AX_CHECK_COMPILE_FLAG([-Wvla], [CFLAGS="$CFLAGS -Wvla"])
AX_CHECK_COMPILE_FLAG([-Walloca], [CFLAGS="$CFLAGS -Walloca"])
AX_CHECK_COMPILE_FLAG([-Wtrampolines], [CFLAGS="$CFLAGS -Wtrampolines"])
dnl dnl
dnl The fallthrough attribute is supported by gcc 7.0 and clang 10. dnl The fallthrough attribute is supported by gcc 7.0 and clang 10.
dnl This test relies on AC_LANG_WERROR. dnl This test relies on AC_LANG_WERROR.