Add clang to Fedora build container

Author: mpe

README.md

@@ -111,7 +111,7 @@ To build modules pass `MODULES=1`
 
 To convert all modules to builtin, pass `MOD2YES=1`.
 
-To build with clang pass `CLANG=1`, only works using the latest Ubuntu image.
+To build with clang pass `CLANG=1`, only works using the latest Fedora or Ubuntu image.
 
 For a quiet build pass `QUIET=1`, for verbose pass `VERBOSE=1`.
 

build/fedora/Dockerfile

@@ -6,6 +6,7 @@ RUN dnf -y install \
         bison \
         bzip2 \
         ccache \
+        clang \
         cpio \
         diffutils \
         dwarves \