More work on Makefiles

* renamed makefiles:
   - Shared.mk → Shared.makefile
   - src/Makefile → src/Lanes.makefile
   - unit_tests/Makefile → unit_tests/UnitTests.makefile
   - deep_userdata_example/Makefile → deep_userdata_example/DUE.makefile
* Add a makefile for deep_userdata_example
* added a target 'unit_tests' to build them (not running them yet)
* plus some minor internal improvements

3 files changed, 12 insertions, 10 deletions

diff --git a/unit_tests/Makefile b/unit_tests/UnitTests.makefile
index 89106b9..b3d1c58 100644
--- a/unit_tests/Makefile
+++ b/unit_tests/UnitTests.makefile
@@ -1,31 +1,33 @@
 #
-# Lanes/unit_tests/Makefile
+# Lanes/unit_tests/UnitTests.makefile
 #
 
-include ../Shared.mk
+include ../Shared.makefile
 
-SRC=$(wildcard *.cpp) ../src/deep.cpp ../src/compat.cpp
+_SRC := $(wildcard *.cpp) ../src/deep.cpp ../src/compat.cpp
 
-OBJ=$(SRC:.cpp=.o)
+_OBJ := $(_SRC:.cpp=.o)
 
 
-_UNITTEST_TARGET=UnitTests$(_LUAEXT)
+_UNITTEST_TARGET := UnitTests$(_LUAEXT)
 
 #---
 all: $(_UNITTEST_TARGET)
+        $(info CC: $(CC))
+        $(info _SRC: $(_SRC))
 
 _pch.hpp.gch: _pch.hpp
         $(CC) -I "../.." $(CFLAGS) -x c++-header _pch.hpp -o _pch.hpp.gch
 
-%.o: %.cpp _pch.hpp.gch *.h *.hpp Makefile
+%.o: %.cpp _pch.hpp.gch *.h *.hpp UnitTests.makefile
         $(CC) -I "../.." $(CFLAGS) -c $<
 
 # Note: Don't put $(LUA_LIBS) ahead of $^; MSYS will not like that (I think)
 #
-$(_UNITTEST_TARGET): $(OBJ)
+$(_UNITTEST_TARGET): $(_OBJ)
         $(CC) $^ $(LIBS) $(LUA_LIBS) -o $@
 
 clean:
         -rm -rf $(_UNITTEST_TARGET) *.o *.map *.gch
 
-.PROXY: all clean
+.PHONY: all clean
diff --git a/unit_tests/UnitTests.vcxproj b/unit_tests/UnitTests.vcxproj
index 9645a30..013a84f 100644
--- a/unit_tests/UnitTests.vcxproj
+++ b/unit_tests/UnitTests.vcxproj
@@ -939,7 +939,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="Catch2.runsettings" />
-    <None Include="Makefile" />
+    <None Include="UnitTests.makefile" />
     <None Include="scripts\coro\basics.lua" />
     <None Include="scripts\coro\error_handling.lua" />
     <None Include="scripts\lane\cooperative_shutdown.lua" />
diff --git a/unit_tests/UnitTests.vcxproj.filters b/unit_tests/UnitTests.vcxproj.filters
index c4e85c5..eb02d19 100644
--- a/unit_tests/UnitTests.vcxproj.filters
+++ b/unit_tests/UnitTests.vcxproj.filters
@@ -110,7 +110,7 @@
     <None Include="Catch2.runsettings">
       <Filter>Catch2</Filter>
     </None>
-    <None Include="Makefile">
+    <None Include="UnitTests.makefile">
       <Filter>Make</Filter>
     </None>
   </ItemGroup>