Add a --verbose configure flag to enable verbose build output.

--- bitlbee-3.5/configure
+++ bitlbee-3.5/configure
@@ -38,6 +38,7 @@
 twitter=1
 purple=0
 
+verbose=0
 doc=1
 debug=0
 strip=0
@@ -125,6 +126,8 @@
 --pidfile=...						$pidfile
 --config=...						$config
 
+--verbose=0/1	Disable/enable verbose build	$verbose
+
 --msn=0/1	Disable/enable MSN part			$msn
 --jabber=0/1	Disable/enable Jabber part		$jabber
 --oscar=0/1	Disable/enable Oscar part (ICQ, AIM)	$oscar
@@ -282,6 +285,12 @@
 	debug=1
 fi
 
+if [ "$verbose" = "0" ]; then
+	echo 'VERBOSE=@' >> Makefile.settings
+else
+	echo 'VERBOSE=' >> Makefile.settings
+fi
+
 if [ "$debug" = "1" ]; then
 	echo 'DEBUG=1' >> Makefile.settings
 	CFLAGS="$CFLAGS -g3 -DDEBUG -O0"
--- bitlbee-3.5/lib/Makefile
+++ bitlbee-3.5/lib/Makefile
@@ -35,12 +35,12 @@
 
 lib.o: $(objects) $(subdirs)
 	@echo '*' Linking lib.o
-	@$(LD) $(LFLAGS) $(objects) -o lib.o
+	$(VERBOSE) $(LD) $(LFLAGS) $(objects) -o lib.o
 
 $(objects): ../Makefile.settings Makefile
 
 $(objects): %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
 
 -include .depend/*.d
--- bitlbee-3.5/Makefile
+++ bitlbee-3.5/Makefile
@@ -162,28 +162,28 @@
 	tar czf $$x.tar.gz --exclude=debian --exclude=.git* --exclude=.depend $$x
 
 $(subdirs):
-	@$(MAKE) -C $@ $(MAKECMDGOALS)
+	$(MAKE) -C $@ $(MAKECMDGOALS)
 
 $(OTR_PI): %.so: $(_SRCDIR_)%.c
 	@echo '*' Building plugin $@
-	@$(CC) $(CFLAGS) -fPIC -shared $(LDFLAGS) $< -o $@ $(OTRFLAGS)
+	$(VERBOSE) $(CC) $(CFLAGS) -fPIC -shared $(LDFLAGS) $< -o $@ $(OTRFLAGS)
 
 $(SKYPE_PI): $(_SRCDIR_)protocols/skype/skype.c
 	@echo '*' Building plugin skype
-	@$(CC) $(CFLAGS) $(LDFLAGS) $(SKYPEFLAGS) $< -o $@
+	$(VERBOSE) $(CC) $(CFLAGS) $(LDFLAGS) $(SKYPEFLAGS) $< -o $@
 
 $(objects): %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
 
 $(objects): Makefile Makefile.settings config.h
 
 $(OUTFILE): $(objects) $(subdirs)
 	@echo '*' Linking $(OUTFILE)
-	@$(CC) $(objects) $(subdirobjs) -o $(OUTFILE) $(LDFLAGS_BITLBEE) $(LDFLAGS) $(EFLAGS)
+	$(VERBOSE) $(CC) $(objects) $(subdirobjs) -o $(OUTFILE) $(LDFLAGS_BITLBEE) $(LDFLAGS) $(EFLAGS)
 ifneq ($(firstword $(STRIP)), \#)
 	@echo '*' Stripping $(OUTFILE)
-	@-$(STRIP) $(OUTFILE)
+	$(VERBOSE) -$(STRIP) $(OUTFILE)
 endif
 
 ctags: 
--- bitlbee-3.5/protocols/jabber/Makefile
+++ bitlbee-3.5/protocols/jabber/Makefile
@@ -37,10 +37,10 @@
 
 $(objects): %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
 
 jabber_mod.o: $(objects)
 	@echo '*' Linking jabber_mod.o
-	@$(LD) $(LFLAGS) $(objects) -o jabber_mod.o
+	$(VERBOSE) $(LD) $(LFLAGS) $(objects) -o jabber_mod.o
 
 -include .depend/*.d
--- bitlbee-3.5/protocols/Makefile
+++ bitlbee-3.5/protocols/Makefile
@@ -42,18 +42,18 @@
 	rm -rf .depend
 
 $(subdirs):
-	@$(MAKE) -C $@ $(MAKECMDGOALS)
+	$(MAKE) -C $@ $(MAKECMDGOALS)
 
 ### MAIN PROGRAM
 
 protocols.o: $(objects) $(subdirs)
 	@echo '*' Linking protocols.o
-	@$(LD) $(LFLAGS) $(objects) $(subdirobjs) -o protocols.o
+	$(VERBOSE) $(LD) $(LFLAGS) $(objects) $(subdirobjs) -o protocols.o
 
 $(objects): ../Makefile.settings Makefile
 
 $(objects): %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
 
 -include .depend/*.d
--- bitlbee-3.5/protocols/msn/Makefile
+++ bitlbee-3.5/protocols/msn/Makefile
@@ -37,10 +37,10 @@
 
 $(objects): %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
 
 msn_mod.o: $(objects)
 	@echo '*' Linking msn_mod.o
-	@$(LD) $(LFLAGS) $(objects) -o msn_mod.o
+	$(VERBOSE) $(LD) $(LFLAGS) $(objects) -o msn_mod.o
 
 -include .depend/*.d
--- bitlbee-3.5/protocols/oscar/Makefile
+++ bitlbee-3.5/protocols/oscar/Makefile
@@ -38,10 +38,10 @@
 
 $(objects): %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
 
 oscar_mod.o: $(objects)
 	@echo '*' Linking oscar_mod.o
-	@$(LD) $(LFLAGS) $(objects) -o oscar_mod.o
+	$(VERBOSE) $(LD) $(LFLAGS) $(objects) -o oscar_mod.o
 
 -include .depend/*.d
--- bitlbee-3.5/protocols/purple/Makefile
+++ bitlbee-3.5/protocols/purple/Makefile
@@ -38,10 +38,10 @@
 
 $(objects): %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
 
 purple_mod.o: $(objects)
 	@echo '*' Linking purple_mod.o
-	@$(LD) $(LFLAGS) $(objects) -o purple_mod.o
+	$(VERBOSE) $(LD) $(LFLAGS) $(objects) -o purple_mod.o
 
 -include .depend/*.d
--- bitlbee-3.5/protocols/twitter/Makefile
+++ bitlbee-3.5/protocols/twitter/Makefile
@@ -37,10 +37,10 @@
 
 $(objects): %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $(CFLAGS_BITLBEE) $< -o $@
 
 twitter_mod.o: $(objects)
 	@echo '*' Linking twitter_mod.o
-	@$(LD) $(LFLAGS) $(objects) -o twitter_mod.o
+	$(VERBOSE) $(LD) $(LFLAGS) $(objects) -o twitter_mod.o
 	
 -include .depend/*.d
--- bitlbee-3.5/tests/Makefile
+++ bitlbee-3.5/tests/Makefile
@@ -20,8 +20,8 @@
 
 check: $(test_objs) $(addprefix ../, $(main_objs)) ../protocols/protocols.o ../lib/lib.o
 	@echo '*' Linking $@
-	@$(CC) $(CFLAGS) -o $@ $^ $(LFLAGS) $(EFLAGS)
+	$(VERBOSE) $(CC) $(CFLAGS) -o $@ $^ $(LFLAGS) $(EFLAGS)
 
 %.o: $(_SRCDIR_)%.c
 	@echo '*' Compiling $<
-	@$(CC) -c $(CFLAGS) $< -o $@
+	$(VERBOSE) $(CC) -c $(CFLAGS) $< -o $@