build: Add configure option for building tools

Makefile.am

@@ -350,7 +350,8 @@ else
 build_plugindir = $(plugindir)
 endif
 
-AM_CFLAGS = @DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@ $(builtin_cflags) \
+AM_CFLAGS = @DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@ @USB_CFLAGS@ \
+					$(builtin_cflags) \
 					-DOFONO_PLUGIN_BUILTIN \
 					-DPLUGINDIR=\""$(build_plugindir)"\"
 
@@ -498,6 +499,7 @@ unit_test_caif_SOURCES = unit/test-caif.c $(gatchat_sources) \
 unit_test_caif_LDADD = @GLIB_LIBS@
 unit_objects += $(unit_test_caif_OBJECTS)
 
+if TOOLS
 noinst_PROGRAMS += tools/huawei-audio tools/auto-enable
 
 tools_huawei_audio_SOURCES = $(gdbus_sources) tools/huawei-audio.c
@@ -505,6 +507,7 @@ tools_huawei_audio_LDADD = @GLIB_LIBS@ @DBUS_LIBS@
 
 tools_auto_enable_SOURCES = $(gdbus_sources) tools/auto-enable.c
 tools_auto_enable_LDADD = @GLIB_LIBS@ @DBUS_LIBS@
+endif
 
 noinst_PROGRAMS += gatchat/gsmdial gatchat/test-server gatchat/test-qcdm
 

bootstrap-configure

@@ -13,4 +13,5 @@ fi
 		--sysconfdir=/etc \
 		--localstatedir=/var \
 		--enable-capng \
+		--enable-tools \
 		--disable-datafiles $*

configure.ac

@@ -153,6 +153,16 @@ AC_SUBST(UDEV_CFLAGS)
 AC_SUBST(UDEV_LIBS)
 AM_CONDITIONAL(UDEV, test "${enable_udev}" = "yes")
 
+AC_ARG_ENABLE(tools, AC_HELP_STRING([--enable-tools],
+		[enable testing tools]), [enable_tools=${enableval}])
+if (test "${enable_tools}" = "yes"); then
+	PKG_CHECK_MODULES(USB, libusb-1.0, dummy=yes,
+				AC_MSG_ERROR(USB library is required))
+	AC_SUBST(USB_CFLAGS)
+	AC_SUBST(USB_LIBS)
+fi
+AM_CONDITIONAL(TOOLS, test "${enable_tools}" = "yes")
+
 AC_ARG_ENABLE(atmodem, AC_HELP_STRING([--disable-atmodem],
 				[disable ETSI AT modem support]),
 					[enable_atmodem=${enableval}])