diff -r 6cc693048318 -r 18bb23fc811f src/CMakeLists.txt
--- a/src/CMakeLists.txt	Wed Apr 14 22:02:23 2021 +0200
+++ b/src/CMakeLists.txt	Thu Apr 15 20:45:10 2021 +0200
@@ -17,7 +17,7 @@
 
 # Relpipe libraries:
 INCLUDE(FindPkgConfig)
-pkg_check_modules (RELPIPE_LIBS relpipe-lib-writer.cpp relpipe-lib-cli.cpp zbar Magick++)
+pkg_check_modules (RELPIPE_LIBS REQUIRED relpipe-lib-writer.cpp relpipe-lib-cli.cpp zbar Magick++)
 include_directories(${RELPIPE_LIBS_INCLUDE_DIRS})
 link_directories(${RELPIPE_LIBS_LIBRARY_DIRS})
 
@@ -32,6 +32,8 @@
 	relpipe-in-qr.cpp
 )
 
+add_definitions (${RELPIPE_LIBS_CFLAGS_OTHER})
+
 # Link libraries:
 target_link_libraries(${EXECUTABLE_FILE} ${RELPIPE_LIBS_LIBRARIES})
 set_property(TARGET ${EXECUTABLE_FILE} PROPERTY INSTALL_RPATH_USE_LINK_PATH TRUE)