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Handle early gcc versions that don't understand -Wno-pedantic.

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Wayne Davison
2020-09-29 14:22:40 -07:00
parent 8f1511184a
commit 33e94849b1
1 changed files with 14 additions and 6 deletions
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20
configure.ac
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@@ -116,9 +116,9 @@ fi
# I don't want our version too far out of sync.
CFLAGS="$CFLAGS -DHAVE_CONFIG_H"
# If GCC, turn on warnings and turn pedantic warnings into errors to ensure an array-init overflow is an error.
# If GCC, turn on warnings.
if test x"$GCC" = x"yes"; then
CFLAGS="$CFLAGS -Wall -W -pedantic-errors"
CFLAGS="$CFLAGS -Wall -W"
fi
AC_ARG_WITH(included-popt,
@@ -1046,10 +1046,18 @@ elif test x"$ac_cv_header_popt_h" != x"yes"; then
with_included_popt=yes
fi
if test x"$with_included_popt" = x"yes" -a x"$GCC" = x"yes"; then
# Our internal popt code cannot be compiled with pedantic warnings as errors, so turn off
# pedantic warnings. This does not affect the array-init overflow as an error, though.
CFLAGS="$CFLAGS -Wno-pedantic"
if test x"$GCC" = x"yes"; then
if test x"$with_included_popt" != x"yes"; then
# Turn pedantic warnings into errors to ensure an array-init overflow is an error.
CFLAGS="$CFLAGS -pedantic-errors"
else
# Our internal popt code cannot be compiled with pedantic warnings as errors, so try to
# turn off pedantic warnings (which will not lose the error for array-init overflow).
case `$CC -dumpversion 2>/dev/null` in
4.*) ;; # Early gcc doesn't understand -Wno-pedantic
*) CFLAGS="$CFLAGS -pedantic-errors -Wno-pedantic" ;;
esac
fi
fi
AC_MSG_CHECKING([whether to use included libpopt])