stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
;;
esac
+
+# This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
+if test "$GCC" = yes; then
+ saved_CFLAGS="$CFLAGS"
+
+ # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
+ CFLAGS="$CFLAGS -fkeep-inline-functions"
+ AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
+ AC_TRY_COMPILE(,,
+ [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
+ [AC_MSG_RESULT([no])])
+
+ CFLAGS="$saved_CFLAGS"
+fi
+
AC_SUBST(stage1_cflags)
# Enable -Werror in bootstrap stage2 and later.