- basic readline autodetection (if readline headers are present

 sercmd is compiled with readline support, if not no command completion
 is available)

utils/sercmd/Makefile

@@ -5,18 +5,49 @@ include ../../Makefile.defs
 auto_gen=
 NAME=sercmd
 RELEASE=0.1
-use_readline=1
+
+readline_locations= /usr/include/readline/readline.h \
+					$(LOCALBASE)/usr/include/readline/readline.h
+use_readline ?=
+
 DEFS:= -DNAME='"$(NAME)"' -DVERSION='"$(RELEASE)"' \
 		$(filter -D%HAVE -DARCH% -DOS% -D__CPU% -D__OS%, $(DEFS))
 LIBS:=$(filter-out -lfl  -ldl -lpthread -lssl -lcrypto, $(LIBS))
 
+ifeq ($(use_readline),)
+readline_path := $(shell  \
+						for r in $(readline_locations) ""; do \
+							if [ -r "$$r" ] ; then echo $$r; exit; fi;  \
+						done;\
+					)
+ifneq ($(readline_path),)
+use_readline := 1
+endif
+endif
+
 ifeq ($(use_readline),1)
 	DEFS+=-DUSE_READLINE
 	LIBS+=-lreadline
 endif
 
+
+
 include ../../Makefile.sources
 include ../../Makefile.rules
 
+$(NAME).o: msg
+
+.PHONY: msg
+msg:
+	@if [ "$(use_readline)" = "1" ]; then \
+		echo; echo "readline detected ($(readline_path)):"; \
+		echo "command completion enabled"; echo ; \
+	else \
+		echo ; \
+		echo "no readline include files detected, disabling readline support";\
+		echo "command completion disabled"; \
+		echo "(to force readline support try 'make use_readline=1')";\
+		echo ; \
+	fi
 
 modules: