added mention of compilation flags

diff --git a/README.md b/README.md
index 1f5a3c798961e5ea0c3aff99ae07d7a2ed5051ff..d34bda576db0dca5fe141f271085344fab680558 100644 (file)
--- a/README.md
+++ b/README.md
@@ -142,6 +142,10 @@ Other available options include:
 The `Makefile` follows the [GNU Standard Makefile conventions](https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html),
 allowing staged install, standard flags, directory variables and command variables.
 
+For advanced use cases, specialized compilation flags which control binary generation
+are documented in [`lib/README.md`](lib/README.md#modular-build) for the `libzstd` library
+and in [`programs/README.md`](programs/README.md#compilation-variables) for the `zstd` CLI.
+
 ### cmake
 
 A `cmake` project generator is provided within `build/cmake`.