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configure: use autobuilds to temporarily verify strict aliasing warnings.

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Temporarily, When cross-compiling with gcc 3.0 or later, enable strict aliasing
rules and warnings. Given that cross-compiled targets autobuilds do not run the
This commit is contained in:
Yang Tse 2010-11-18 17:12:15 +01:00
parent 5046dd02b9
commit 1c4fa240be
1 changed files with 5 additions and 0 deletions
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m4/curl-compilers.m4
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@ -935,6 +935,11 @@ AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [
dnl Also, on gcc 4.0.X it is totally unbearable and complains all
dnl over making it unusable for generic purposes. Let's not use it.
tmp_CFLAGS="$tmp_CFLAGS"
dnl When cross-compiling with gcc 3.0 or later,
dnl enable strict aliasing rules and warnings.
if test "x$cross_compiling" = "xyes"; then
tmp_CFLAGS="$tmp_CFLAGS -fstrict-aliasing -Wstrict-aliasing=2"
fi
fi
#
dnl Only gcc 3.3 or later