manuals: add missing references to variables

[YOCTO #14508]
(From yocto-docs rev: 7878a21be8fb6c7a1ab88ae44aa5f7bf0079391a)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/test-manual/reproducible-builds.rst b/documentation/test-manual/reproducible-builds.rst
index 61127de23c..2a2f7790d2 100644
--- a/documentation/test-manual/reproducible-builds.rst
+++ b/documentation/test-manual/reproducible-builds.rst
@@ -71,7 +71,7 @@ things we do within the build system to ensure reproducibility include:
 .. note::
 
    Because of an open bug in GCC, using ``DISTRO_FEATURES:append = " lto"`` or
-   adding ``-flto`` (Link Time Optimization) to ``CFLAGS`` makes the resulting
+   adding ``-flto`` (Link Time Optimization) to :term:`CFLAGS` makes the resulting
    binary non-reproducible, in that it depends on the full absolute build path
    to ``recipe-sysroot-native``, so installing the Yocto Project in a different
    directory results in a different binary.