Add check for exit status

src/events_generation/binary_parser/lib/build_libs.sh

@@ -14,12 +14,24 @@ CUSTOM_PATH=$(pwd)/build_output
 
 cd libtraceevent
 INSTALL_PATH="$CUSTOM_PATH" ../trace-cmd/make-trace-cmd.sh install
+if (("$?" != 0)); then
+    echo "Build error in libtraceevent."
+    exit 1
+fi
 
 cd ../libtracefs
 INSTALL_PATH="$CUSTOM_PATH" ../trace-cmd/make-trace-cmd.sh install
+if (("$?" != 0)); then
+    echo "Build error in libtracefs."
+    exit 1
+fi
 
 cd ../trace-cmd
 INSTALL_PATH="$CUSTOM_PATH" ./make-trace-cmd.sh install_libs
+if (("$?" != 0)); then
+    echo "Build error in libtracecmd."
+    exit 1
+fi
 
 cd ..
 make -C libtraceevent clean