ENH: check in initial conv library stuff

Tests/ConvLibrary/CMakeLists.txt

@@ -0,0 +1,19 @@
+project(foo)
+
+# create a source list
+set(foo_sources foo.cxx bar.c sub1/car.cxx) 
+# create a library foo from the sources
+add_library(foo ${foo_sources})
+# get the object files from the target
+get_target_property(OBJECT_FILES foo OBJECT_FILES)
+message("${OBJECT_FILES}")
+# set the object files as generated
+set_source_files_properties(${OBJECT_FILES} PROPERTIES GENERATED true)
+# create a library bar that contains the object files from foo
+add_library(bar ${OBJECT_FILES})
+# set the linker language since bar only has .obj
+set_target_properties(bar PROPERTIES LINKER_LANGUAGE CXX)
+# make sure foo is built before bar
+add_dependencies(bar foo)
+add_executable(bartest bartest.cxx)
+target_link_libraries(bartest bar)

Tests/ConvLibrary/bar.c

@@ -0,0 +1,4 @@
+int bar()
+{
+  return 20;
+}

Tests/ConvLibrary/bartest.cxx

@@ -0,0 +1,37 @@
+extern "C" int bar();
+int foo();
+int car();
+
+#include <stdio.h>
+int main()
+{
+  if(foo() == 10)
+    {
+    printf("foo is 10!\n");
+    }
+  else
+    {
+    printf("foo is not 10 error!\n");
+    return -1;
+    }
+  if(bar() == 20)
+    {
+    printf("bar is 20!\n");
+    }
+  else
+    {
+    printf("bar is not 20 error!\n");
+    return -1;
+    }
+  if(car() == 30)
+    {
+    printf("bar is 30!\n");
+    }
+  else
+    {
+    printf("bar is not 30 error!\n");
+    return -1;
+    }
+  printf("Test past\n");
+  return 0;
+}

Tests/ConvLibrary/foo.cxx

@@ -0,0 +1,4 @@
+int foo()
+{
+  return 10;
+}

Tests/ConvLibrary/sub1/car.cxx

@@ -0,0 +1,4 @@
+int car()
+{
+  return 30;
+}