Docs: Add a build note about glibc-devel.i686 on RHEL-based distros

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>

diff --git a/docs/mainpage.dox b/docs/mainpage.dox
index 91909e81d7ca89a04bbed0a8dc170720ca99c646..491328ec48e2fdb0df016f59347f49e4991260ec 100644 (file)
--- a/docs/mainpage.dox
+++ b/docs/mainpage.dox
@@ -34,7 +34,11 @@ Environment | Guest | Width | Paging
 
 Requirements:
 - GNU Make >= 3.81
-- GNU comaptible toolchain, capable of `-std=gnu99`, `-m64`, and `-m32`
+- GNU compatible 32 and 64-bit toolchain, capable of `-std=gnu99`, `-m64`, and
+  `-m32`
+    - For Debian-based systems, the `build-essential` package is
+      sufficient. For RHEL-based systems, the `glibc-devel.i686` package is
+      generally needed beyond the default toolchain packages.
     - Clang may be used, via `CC="clang"`
 - Python