# The algorithm for determining which number to change (and how) is nontrivial!
# http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
SR_LIB_VERSION_CURRENT=1
-SR_LIB_VERSION_REVISION=1
+SR_LIB_VERSION_REVISION=2
SR_LIB_VERSION_AGE=0
SR_LIB_VERSION="$SR_LIB_VERSION_CURRENT:$SR_LIB_VERSION_REVISION:$SR_LIB_VERSION_AGE"
SR_LIB_LDFLAGS="-version-info $SR_LIB_VERSION"
[CFLAGS="$CFLAGS $libzip_CFLAGS"; LIBS="$LIBS $libzip_LIBS";
SR_PKGLIBS="$SR_PKGLIBS libzip"])
+# libserialport is only needed for some hardware drivers. Disable the
+# respective drivers if it is not found.
+PKG_CHECK_MODULES([libserialport], [libserialport >= 0.1],
+ [have_libserialport="yes"; CFLAGS="$CFLAGS $libserialport_CFLAGS";
+ LIBS="$LIBS $libserialport_LIBS";
+ SR_PKGLIBS="$SR_PKGLIBS libserialport"],
+ [have_libserialport="no"; HW_AGILENT_DMM="no"; HW_BRYMEN_DMM="no";
+ HW_CEM_DT_885X="no"; HW_CENTER_3XX="no"; HW_COLEAD_SLM="no";
+ HW_FLUKE_DMM="no"; HW_LINK_MSO19="no"; HW_MIC_985XX="no";
+ HW_NORMA_DMM="no"; HW_OLS="no"; HW_RIGOL_DS1XX2="no";
+ HW_SERIAL_DMM="no"; HW_TELEINFO="no"; HW_TONDAJ_SL_814="no"])
+
+# Define HAVE_LIBSERIALPORT in config.h if we found libserialport.
+if test "x$have_libserialport" != "xno"; then
+ AC_DEFINE_UNQUOTED(HAVE_LIBSERIALPORT, [1],
+ [Specifies whether we have libserialport.])
+fi
+
+# Serial port helper code is only compiled in if libserialport was found.
+AM_CONDITIONAL(NEED_SERIAL, test "x$have_libserialport" != xno)
+
# libusb-1.0 is only needed for some hardware drivers. Disable the respective
# drivers if it is not found.
case "$host" in
echo
# Note: This only works for libs with pkg-config integration.
-for lib in "glib-2.0 >= 2.32.0" "libzip >= 0.10" "libusb-1.0 >= 1.0.9" "libftdi >= 0.16" "libudev >= 151" "alsa >= 1.0" "check >= 0.9.4"; do
+for lib in "glib-2.0 >= 2.32.0" "libzip >= 0.10" "libserialport >= 0.1" "libusb-1.0 >= 1.0.9" "libftdi >= 0.16" "libudev >= 151" "alsa >= 1.0" "check >= 0.9.4"; do
if `$PKG_CONFIG --exists $lib`; then
ver=`$PKG_CONFIG --modversion $lib`
answer="yes ($ver)"