don't let `make clean' delete generated files

For that purpose use now

   make clean-generated   # deletes all generated files

or

   make clean-<model>-src # deletes generated files of <model>

README

@@ -354,24 +354,27 @@ Cleaning
 There are several make targets to remove generated files, compiled
 object files, libraries or executables:
 
-   $ make clean      # deletes all .d .o .a .x and generated files
+   $ make clean      # deletes all .d .o .a .x files
 
-   $ make distclean  # calls `make clean' and deletes in addition
+   $ make distclean  # does `clean' and `clean-generated'
+                     # and deletes in addition:
                      # Makefile flexiblesusy-config config.*
                      # config/list_sarah_model_files.sh
 
    $ make clean-dep  # deletes all .d files
 
    $ make clean-executables # deletes all .x files
 
+   $ make clean-generated   # deletes generated files
+
    $ make clean-lib  # deletes all libraries
 
    $ make clean-obj  # deletes all .o files
 
 For each model <model> or addon there are specific clean targets to
 remove model-specific files:
 
-   $ make clean-<model>     # deletes .d .o .a .x and generated files
+   $ make clean-<model>     # deletes .d .o .a .x files
 
    $ make distclean-<model> # same as `make clean-<model>'
 

config/Makefile.in

@@ -117,8 +117,8 @@ CONVERT_DOS_PATHS := config/convert_dos_paths.sh
 README_FILE := README
 
 .PHONY:  all allsrc allexec alllib alltest clean clean-dep \
-	 clean-executables clean-lib clean-obj depend distclean \
-	 release-tag release-head showbuild tag
+	 clean-executables clean-generated clean-lib clean-obj \
+	 depend distclean release-tag release-head showbuild tag
 
 all:
 ifeq ($(ENABLE_META),yes)

doc/building.dox

@@ -217,16 +217,19 @@ dynamic libraries.
 There are several make targets to remove generated files, compiled
 object files, libraries or executables:
 
-     make clean      # deletes all .d .o .a .x and generated files
+     make clean      # deletes all .d .o .a .x files
 
-     make distclean  # calls `make clean' and deletes in addition
+     make distclean  # does `clean' and `clean-generated'
+                     # and deletes in addition:
                      # Makefile flexiblesusy-config config.*
                      # config/list_sarah_model_files.sh
 
      make clean-dep  # deletes all .d files
 
      make clean-executables # deletes all .x files
 
+     make clean-generated   # deletes generated files
+
      make clean-lib  # deletes all libraries
 
      make clean-obj  # deletes all .o files

templates/module.addon.mk.in

@@ -64,14 +64,16 @@ clean-$(MODNAME)-obj:
 clean-$(MODNAME)-src:
 		@true
 
-clean-$(MODNAME): clean-$(MODNAME)-src
+distclean-$(MODNAME): clean-$(MODNAME)-src
 # END:   NOT EXPORTED ##########################################
 
 clean-$(MODNAME): clean-$(MODNAME)-dep clean-$(MODNAME)-lib clean-$(MODNAME)-obj
 		-rm -f $(EXE@ADDON@_EXE)
 
 distclean-$(MODNAME): clean-$(MODNAME)
 
+clean-generated:: clean-$(MODNAME)-src
+
 clean-obj::     clean-$(MODNAME)-obj
 
 clean::         clean-$(MODNAME)

templates/module.mk.in

@@ -188,7 +188,7 @@ clean-$(MODNAME)-src:
 		-rm -f $(@CLASSNAME@_SLHA_INPUT)
 		-rm -f $(@CLASSNAME@_GNUPLOT)
 
-clean-$(MODNAME): clean-$(MODNAME)-src
+distclean-$(MODNAME): clean-$(MODNAME)-src
 # END:   NOT EXPORTED ##########################################
 
 clean-$(MODNAME): clean-$(MODNAME)-dep clean-$(MODNAME)-lib clean-$(MODNAME)-obj
@@ -197,6 +197,8 @@ clean-$(MODNAME): clean-$(MODNAME)-dep clean-$(MODNAME)-lib clean-$(MODNAME)-obj
 distclean-$(MODNAME): clean-$(MODNAME)
 		@true
 
+clean-generated:: clean-$(MODNAME)-src
+
 clean-obj::     clean-$(MODNAME)-obj
 
 clean::         clean-$(MODNAME)