fdep fixes for procedures, compilation errors

Train fdep to recognize

  module procedure ...

lines. Also, previoulsy an fdep internal error aborted make, however the
partially generated dependency file stayed and was used in that form on
a subsequent make call.

fdep/fortran_dependencies.mk

@@ -46,7 +46,7 @@ $(dir $1)$2$(call strip_fortran_ext,$(notdir $1)).use_mods.$3.$(call object_exte
 
 $(eval _$3_def_mods += $(dir $1)$2$(call strip_fortran_ext,$(notdir $1)).def_mods.$3.$(call object_extension,$3))
 $(dir $1)$2$(call strip_fortran_ext,$(notdir $1)).def_mods.$3.$(call object_extension,$3): $1 $(dir $1)$(am__dirstamp)
-	$(call _f90_verbose,F90 MOD  [$3] $$<)$(FORTRAN_CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $($p_CPPFLAGS) $(CPPFLAGS) -o /dev/stdout $$< | grep -i -o '^ *module [^!]*' > $$@ || true
+	$(call _f90_verbose,F90 MOD  [$3] $$<)$(FORTRAN_CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $($p_CPPFLAGS) $(CPPFLAGS) -o /dev/stdout $$< | grep -i -o '^ *module [^!]*' | grep -v "\<procedure\>" > $$@ || true
 
 endef
 $(foreach p,$(_f90_targets),$(if $(call is_per_target,$p),$(foreach s,$(call fortran_sources,$p),$(eval $(call module_targets,$s,$p-,$p))),$(foreach s,$(call fortran_sources,$p),$(eval $(call module_targets,$s,,$p)))))
@@ -67,7 +67,7 @@ ifneq ($(call is_clean),1)
 include $(_f90_depfile)
 endif
 $(_f90_depfile): $(top_srcdir)/fdep/fortran_dependencies.pl $(foreach p,$(_f90_targets),$(_$p_use_mods) $(_$p_def_mods)) | $(foreach p,$(_f90_targets),$(_f90_depdir)/$p)
-	$(call _f90_verbose,F90 DEPS $@)echo > $@; $(foreach p,$(_f90_targets),$(top_srcdir)/fdep/fortran_dependencies.pl $p $(_$p_use_mods) $(_$p_def_mods) >> $@;$(_fdep_newline))
+	$(call _f90_verbose,F90 DEPS $@)echo > $@; $(foreach p,$(_f90_targets),$(top_srcdir)/fdep/fortran_dependencies.pl $p $(_$p_use_mods) $(_$p_def_mods) >> $@ || { rm $@; exit 1; } ;$(_fdep_newline))
 
 $(_f90_depdir):
 	@mkdir $@