CMake: re-work messages, to have a summary at the bottom of the cmake

This re-works some of the cmake to make it quieter, and less status in
random places, to put a summary at the bottom of the file, to make it
easier for people to find (and for us to debug).

Now we get outputs like:

-- Features Enabled : xml network dns-sd avahi ipv6 local usb utils iiod iiod-serial iiod-aio iiod-usb man-utils
-- Features Disabled:  C#-bindings Python-bindings zstd serial examples iiod-systemd iiod-sysvinit iiod-upstart doc man

Signed-off-by: Robin Getz <robin.getz@analog.com>

CMakeLists.txt

@@ -149,8 +149,6 @@ if (WITH_USB_BACKEND)
 		message(SEND_ERROR "Unable to find libusb-1.0 dependency.\n"
 			"If you want to disable the USB backend, set WITH_USB_BACKEND=OFF.")
 	else()
-		message(STATUS "Looking for libusb-1.0 : Found")
-
 		set(IIOD_CLIENT 1)
 		set(NEED_LIBXML2 1)
 		set(NEED_THREADS 1)
@@ -293,7 +291,6 @@ endif (WITH_ZSTD)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
 
 if(WITH_NETWORK_BACKEND)
-	message(STATUS "Building with Network back end support")
 	if (WIN32)
 		list(APPEND LIBS_TO_LINK wsock32 iphlpapi ws2_32)
 	endif()
@@ -334,18 +331,14 @@ if(WITH_NETWORK_BACKEND)
 		message(STATUS "Building without DNS-SD (ZeroConf) support")
 	elseif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
 		find_library(CORE_SERVICES CoreServices)
-
-		message(STATUS "Building with CFNetServices, an Apple DNS SD implementation")
-
 		list(APPEND LIBIIO_CFILES dns_sd_bonjour.c dns_sd.c)
 		list(APPEND LIBS_TO_LINK ${CORE_SERVICES} )
-
+		set(HAVE_BONJOUR ON)
 	elseif(WIN32)
 		list(APPEND LIBIIO_CFILES dns_sd_windows.c dns_sd.c)
 		if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID STREQUAL "Clang")
 			set_source_files_properties(dns_sd_windows.c PROPERTIES COMPILE_FLAGS "-Wno-unused-function")
 		endif()
-		message(STATUS "Building with mdns, A Public domain mDNS/DNS-SD library in C ")
 	else()
 		find_library(AVAHI_CLIENT_LIBRARIES avahi-client)
 		find_library(AVAHI_COMMON_LIBRARIES avahi-common)
@@ -354,9 +347,7 @@ if(WITH_NETWORK_BACKEND)
 				"If you want to disable DNS-SD (ZeroConf) support, set HAVE_DNS_SD=OFF.")
 		endif()
 
-		message(STATUS "Building with Avahi, a DNS-SD (ZeroConf) implementation")
 		set(HAVE_AVAHI ON)
-
 		list(APPEND LIBIIO_CFILES dns_sd_avahi.c dns_sd.c)
 		set(AVAHI_LIBRARIES ${AVAHI_CLIENT_LIBRARIES} ${AVAHI_COMMON_LIBRARIES})
 		list(APPEND LIBS_TO_LINK ${AVAHI_LIBRARIES})
@@ -366,7 +357,6 @@ if(WITH_NETWORK_BACKEND)
 	set(IIOD_CLIENT 1)
 	set(NEED_LIBXML2 1)
 else()
-	message(STATUS "Building without network support")
 	set(HAVE_DNS_SD OFF)
 endif()
 
@@ -618,3 +608,33 @@ if (WITH_USB_BACKEND AND CMAKE_SYSTEM_NAME MATCHES "^Linux")
 endif()
 
 configure_file(iio-config.h.cmakein ${CMAKE_CURRENT_BINARY_DIR}/iio-config.h @ONLY)
+
+list(APPEND IIO_FEATURES_${WITH_XML_BACKEND} xml)
+list(APPEND IIO_FEATURES_${WITH_ZSTD} zstd)
+list(APPEND IIO_FEATURES_${WITH_NETWORK_BACKEND} network)
+list(APPEND IIO_FEATURES_${HAVE_DNS_SD} dns-sd)
+list(APPEND IIO_FEATURES_${HAVE_AVAHI} avahi)
+list(APPEND IIO_FEATURES_${HAVE_BONJOUR} bonjour)
+list(APPEND IIO_FEATURES_${ENABLE_IPV6} ipv6)
+list(APPEND IIO_FEATURES_${WITH_SERIAL_BACKEND} serial)
+list(APPEND IIO_FEATURES_${WITH_LOCAL_BACKEND} local)
+list(APPEND IIO_FEATURES_${WITH_USB_BACKEND} usb)
+list(APPEND IIO_FEATURES_${WITH_TESTS} utils)
+list(APPEND IIO_FEATURES_${WITH_EXAMPLES} examples)
+list(APPEND IIO_FEATURES_${WITH_IIOD} iiod)
+#add iiod settings
+list(APPEND IIO_FEATURES_ON ${IIOD_FEATURES_ON})
+list(APPEND IIO_FEATURES_OFF ${IIOD_FEATURES_OFF})
+list(APPEND IIO_FEATURES_${WITH_DOC} doc)
+#add man page settings
+list(APPEND IIO_FEATURES_ON ${IIOM_FEATURES_ON})
+list(APPEND IIO_FEATURES_OFF ${IIOM_FEATURES_OFF})
+#add binding settings
+list(APPEND IIO_FEATURES_ON ${IIOB_FEATURES_ON})
+list(APPEND IIO_FEATURES_OFF ${IIOB_FEATURES_OFF})
+
+string(REPLACE ";" " " IIO_FEATURES_ON "${IIO_FEATURES_ON}")
+string(REPLACE ";" " " IIO_FEATURES_OFF "${IIO_FEATURES_OFF}")
+
+message(STATUS "Features enabled : ${IIO_FEATURES_ON}")
+message(STATUS "Features disabled: ${IIO_FEATURES_OFF}")

bindings/CMakeLists.txt

@@ -5,3 +5,9 @@ endif()
 if (PYTHON_BINDINGS)
 	add_subdirectory(python)
 endif()
+
+list(APPEND IIOB_FEATURES_${PYTHON_BINDINGS} python-bindings)
+list(APPEND IIOB_FEATURES_${CSHARP_BINDINGS} "c#-bindings")
+
+set(IIOB_FEATURES_ON "${IIOB_FEATURES_ON}" PARENT_SCOPE)
+set(IIOB_FEATURES_OFF "${IIOB_FEATURES_OFF}" PARENT_SCOPE)

bindings/python/CMakeLists.txt

@@ -9,7 +9,6 @@ if(${CMAKE_VERSION} VERSION_LESS "3.12.0")
 	# which is available from CMake 3.12.
 	set(Python_Interpreter_FOUND ${PYTHONINTERP_FOUND})
 	set(Python_EXECUTABLE ${PYTHON_EXECUTABLE})
-	message(STATUS "old")
 else()
 	if(PYTHON_EXECUTABLE)
 		set(Python_EXECUTABLE ${PYTHON_EXECUTABLE})
@@ -22,12 +21,10 @@ else()
 	endif()
 	message(STATUS "bin=${Python_EXECUTABLE} lib=${Python_LIBRARY} inc=${Python_INCLUDE_DIR}")
 	find_package (Python COMPONENTS Interpreter)
-	message(STATUS "new")
 	message(STATUS "Python_EXECUTABLE ${Python_EXECUTABLE}")
 endif()
 
 if (Python_Interpreter_FOUND)
-	message(STATUS "Found Python: Building bindings")
 	set(SETUP_PY_IN ${CMAKE_CURRENT_SOURCE_DIR}/setup.py.cmakein)
 	set(SETUP_PY ${CMAKE_CURRENT_BINARY_DIR}/setup.py)
 

iiod/CMakeLists.txt

@@ -37,8 +37,6 @@ if (WITH_AIO)
 			"If you want to disable async. I/O support, set WITH_AIO=OFF.")
 	endif ()
 
-	message(STATUS "Looking for libaio: Found")
-
 	option(WITH_IIOD_USBD "Add support for USB through FunctionFS within IIOD" ON)
 	if (WITH_IIOD_USBD)
 		include(CheckTypeSize)
@@ -104,3 +102,13 @@ if (WITH_UPSTART)
 	configure_file(${CMAKE_CURRENT_SOURCE_DIR}/init/iiod.conf.cmakein ${PROJECT_BINARY_DIR}/init/iiod.conf)
 	install(FILES ${PROJECT_BINARY_DIR}/init/iiod.conf DESTINATION ${UPSTART_CONF_INSTALL_DIR})
 endif()
+
+list(APPEND IIOD_FEATURES_${WITH_IIOD_SERIAL} iiod-serial)
+list(APPEND IIOD_FEATURES_${WITH_AIO} iiod-aio)
+list(APPEND IIOD_FEATURES_${WITH_IIOD_USBD} iiod-usb)
+list(APPEND IIOD_FEATURES_${WITH_SYSTEMD} iiod-systemd)
+list(APPEND IIOD_FEATURES_${WITH_SYSVINIT} iiod-sysvinit)
+list(APPEND IIOD_FEATURES_${WITH_UPSTART} iiod-upstart)
+
+set(IIOD_FEATURES_ON "${IIOD_FEATURES_ON}" PARENT_SCOPE)
+set(IIOD_FEATURES_OFF "${IIOD_FEATURES_OFF}" PARENT_SCOPE)

man/CMakeLists.txt

@@ -59,5 +59,10 @@ if (WITH_MAN)
 	install(DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_MANDIR}
 		DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
 		COMPONENT doc FILES_MATCHING PATTERN "*.1*")
-
 endif()
+
+list(APPEND IIOM_FEATURES_${WITH_MAN} man)
+list(APPEND IIOM_FEATURES_${WITH_TESTS} man-utils)
+
+set(IIOM_FEATURES_ON "${IIOM_FEATURES_ON}" PARENT_SCOPE)
+set(IIOM_FEATURES_OFF "${IIOM_FEATURES_OFF}" PARENT_SCOPE)