AC_CHECK_HEADER uses cpp for header checks, so in order for the check to use
the right flags, we need to override CPPFLAGS and not CFLAGS.
AS_IF([test "x$HAVE_ALSA" = "x1"],
[
AS_IF([test "x$HAVE_ALSA" = "x1"],
[
- save_CFLAGS="$CFLAGS"; CFLAGS="$CFLAGS $ASOUNDLIB_CFLAGS"
+ save_CPPFLAGS="$CPPFLAGS"; CPPFLAGS="$CPPFLAGS $ASOUNDLIB_CFLAGS"
AC_CHECK_HEADERS([use-case.h], HAVE_ALSA_UCM=1, HAVE_ALSA_UCM=0)
AC_CHECK_HEADERS([use-case.h], HAVE_ALSA_UCM=1, HAVE_ALSA_UCM=0)
+ CPPFLAGS="$save_CPPFLAGS"