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-rw-r--r--qtserialbus.pro3
1 files changed, 3 insertions, 0 deletions
diff --git a/qtserialbus.pro b/qtserialbus.pro
index 5b918c3..a5e7501 100644
--- a/qtserialbus.pro
+++ b/qtserialbus.pro
@@ -7,8 +7,11 @@ lessThan(QT_MAJOR_VERSION, 5) {
load(configure)
qtCompileTest(socketcan)
qtCompileTest(socketcan_fd)
+qtCompileTest(libmodbus)
load(qt_parts)
+!config_libmodbus:warning("Cannot build libmodbus plugin. No libmodbus found")
+
linux {
!config_socketcan:warning("You need linux/can.h and linux/can/raw.h linux headers for socketCAN support, disabling it")
!config_socketcan_fd:warning("Newer kernel needed for flexible data-rate frame support 'canfd_frame'")