Add notes for binutils option --enable-64-bit-bfd

diff --git a/stage0/pkg/binutils b/stage0/pkg/binutils
index 5c80364..6077844 100644 (file)
--- a/stage0/pkg/binutils
+++ b/stage0/pkg/binutils
@@ -14,6 +14,12 @@ hvconfig_pre()
         --enable-shared \
         --disable-multilib"
 
+    # --enable-64-bit-bfd:
+    # bfd = Binary File Descriptor
+    # Include support for 64 bit targets. This is automatically turned on if
+    # you explicitly request a 64 bit target, but not for --enable-targets=all.
+    # If compiling on a 32-bit machine, this option forces to generate a
+    # compiler that can also emit 64-bit code.
     case "${HVL_TARGET}" in
         x86_64*)
             CONFIGURE_OPTS+=" --enable-64-bit-bfd"