Fix cross compiling (#2389)

Signed-off-by: Dario Binacchi <[email protected]>

Author: passgat

CMakeLists.txt

@@ -524,6 +524,15 @@ if (BUILD_EXAMPLES)
 endif (BUILD_EXAMPLES)
 
 if (BUILD_CTL)
+    if (CMAKE_CROSSCOMPILING)
+        find_program(HOST_DROGON_CTL _drogon_ctl)
+        if (NOT HOST_DROGON_CTL)
+            message(FATAL_ERROR "_drogon_ctl not found on host system")
+        endif()
+        set(DROGON_CTL "${HOST_DROGON_CTL}")
+    else (CMAKE_CROSSCOMPILING)
+        set(DROGON_CTL "$<TARGET_FILE:_drogon_ctl>")
+    endif (CMAKE_CROSSCOMPILING)
     add_subdirectory(drogon_ctl)
 endif (BUILD_CTL)
 

drogon_ctl/CMakeLists.txt

@@ -43,7 +43,7 @@ foreach(cspFile ${SCP_LIST})
   get_filename_component(classname ${cspFile} NAME_WE)
   message(STATUS "view classname:" ${classname})
   add_custom_command(OUTPUT ${classname}.h ${classname}.cc
-                     COMMAND $<TARGET_FILE:_drogon_ctl>
+                     COMMAND ${DROGON_CTL}
                              ARGS
                              create
                              view
@@ -63,6 +63,7 @@ if(APPLE)
   target_link_libraries(drogon_ctl PRIVATE resolv)
 endif()
 message(STATUS "bin:" ${INSTALL_BIN_DIR})
+install(TARGETS _drogon_ctl RUNTIME DESTINATION ${INSTALL_BIN_DIR})
 install(TARGETS drogon_ctl RUNTIME DESTINATION ${INSTALL_BIN_DIR})
 if(WIN32)
   set(CTL_FILE $<TARGET_FILE:drogon_ctl>)

examples/CMakeLists.txt

@@ -50,6 +50,14 @@ set(example_targets
     async_stream
     cors)
 
+foreach(target ${example_targets})
+    set_target_properties(${target} PROPERTIES
+        RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin)
+endforeach()
+
+install(TARGETS ${example_targets}
+    RUNTIME DESTINATION ${INSTALL_BIN_DIR})
+
 # Add warnings for our example targets--some warnings (such as -Wunused-parameter) only appear
 # when the templated functions are instantiated at their point of use.
 if(NOT ${CMAKE_PLATFORM_NAME} STREQUAL "Windows" AND CMAKE_CXX_COMPILER_ID MATCHES GNU)