first step to make gammu dependency optional

configure.ac

@@ -15,7 +15,6 @@ AM_PROG_CC_C_O
 LT_INIT
 
 # Checks for libraries.
-PKG_CHECK_MODULES([gammu], [gammu >= 1.0])
 PKG_CHECK_MODULES([libconfuse], [libconfuse >= 2.0])
 
 # Checks for header files.
@@ -33,9 +32,21 @@ AC_FUNC_MALLOC
 # Checks for optional features
 AC_ARG_ENABLE(daemon, [  --disable-daemon          do not build daemon])
 if test "${enable_daemon}" = "no";then
-  DAEMON=""
+	DAEMON=""
 else
-  DAEMON="daemon"
+	DAEMON="daemon"
+
+	AC_ARG_WITH(gammu, [  --without-gammu        do not use Gammu in daemon])
+	if test "${with_gammu}" != "no"; then
+		GAMMU=""
+		PKG_CHECK_MODULES([gammu], [gammu >= 1.0])
+		AC_CHECK_LIB([Gammu], [main], 
+		[ 
+			AC_DEFINE([HAVE_LIBGAMMU], [1], [Define if you have libGammu])
+			GAMMU=${gammu_LIBS}
+		])
+		AC_SUBST(GAMMU)
+	fi
 fi
 AC_SUBST(DAEMON)
 

lib/Makefile.am

@@ -1,7 +1,7 @@
 lib_LTLIBRARIES = libyasnd.la
 libyasnd_la_SOURCES = libyasnd.c yasnd-gammu.c yasnd-log.c yasnd-lpt.c
 libyasnd_la_CPPFLAGS = -I$(top_srcdir) ${gammu_CFLAGS}
-libyasnd_la_LIBADD = ${gammu_LIBS}
+libyasnd_la_LIBADD = @GAMMU@
 
 distclean-local:
 	rm -f Makefile.in &>/dev/null