More files into distribution

Makefile.am

@@ -8,11 +8,12 @@ EXTRA_DIST = FAQ autogen.sh Stuarts_Poly_Notes  \
         DEVICES INTERNALS NEWS README README.tcl README.optran\
         README.shared-xspice README.vdmos README_OSDI.md\
         README_OSDI_howto README.cpl-gc README.utf8 \
-		examples m4 visualc \
+        examples m4 visualc Dockerfile \
         cross-compile.sh cross-compile-shared.sh \
         compile_min.sh compile_linux.sh compile_min_shared.sh \
         compile_linux_shared.sh compile_cyg_make_short_check_64.sh \
-		compile_macos_clang.sh compile_macos_gcc.sh \
+        compile_macos_clang.sh compile_macos_gcc.sh compile_macos_shared.sh \
+        compile_macos_clang_M2.sh compile_macos_clang_M2_shared.sh
         compile_linux_dist.sh ngspice.pc.in .gitignore
 
 MAINTAINERCLEANFILES = Makefile.in aclocal.m4 ar-lib compile config.guess \