Avoid rebuilding documentation in distributed sources, so users don't…

… need luadoc installed.

Makefile.am

@@ -21,6 +21,13 @@ DISTCLEANFILES = $(PACKAGE).rockspec
 
 ROCKSPEC = $(PACKAGE)-$(VERSION)-1.rockspec
 
+# In order to avoid regenerating std.lua at configure time, which
+# causes the documentation to be rebuilt and hence requires users to
+# have luadoc installed, put src/std.lua in as a Makefile dependency.
+# (Strictly speaking, distributing an AC_CONFIG_FILE would be wrong.)
+src/std.lua: src/std.lua.in
+	./config.status --file=$@
+
 $(dist_doc_DATA): $(SOURCES)
 	cd src && luadoc *.lua
 

configure.ac

@@ -12,5 +12,5 @@ AX_PROG_LUA([$LUA_MIN_VERSION], [5.3])
 
 dnl Generate output files
 AC_CONFIG_MACRO_DIR(m4)
-AC_CONFIG_FILES(Makefile $PACKAGE.rockspec luarocks-config.lua src/std.lua)
+AC_CONFIG_FILES(Makefile $PACKAGE.rockspec luarocks-config.lua)
 AC_OUTPUT