Made the try example in rsomla1 to properly use lib as shared library. Added some docs

Author: malkia

.bazelrc

@@ -143,3 +143,5 @@ common --experimental_google_legacy_api
 # common --repository_cache=f:/b/r
 # startup --output_user_root=f:/b/u
 try-import %workspace%/../top.bazelrc
+
+common --experimental_cc_static_library

x/rsomla1/BUILD.bazel

@@ -1,5 +1,35 @@
+# Plain C/C++ library declaration
+cc_library(
+    name = "lib_plain",
+    srcs = ["lib.cc"],
+    deps = ["@otel_sdk//:dll"],
+)
+
+# Make shared library from it (.dll/.so/.dylib)
+cc_shared_library(
+    name = "lib_dll_or_so",
+    deps = [":lib_plain"],
+)
+
+# Extract the .imp/.lo file.
+filegroup(
+    name = "lib_imp_or_lo",
+    srcs = [":lib_dll_or_so"],
+    output_group = "interface_library"
+)
+
+# Re-import back using the .imp/.lo + .dll/.so/.dylib
+cc_import(
+    name = "lib",
+    interface_library = ":lib_imp_or_lo",
+    shared_library = ":lib_dll_or_so",
+)
+
 cc_test(
     name = "try",
-    srcs = ["try.cc", "lib.cc"],
-    deps = ["@otel_sdk//:dll"],
+    srcs = ["try.cc"],
+    deps = [
+        "@otel_sdk//:dll", 
+        ":lib",
+    ],
 )

x/rsomla1/README.md

@@ -62,3 +62,21 @@ INFO: Elapsed time: 11.789s, Critical Path: 9.35s
 INFO: 5 processes: 1 internal, 4 local.
 INFO: Build completed successfully, 5 total actions
 ```
+
+# Added proper lib.dll (lib_dll_or_so.dll)
+
+- Bin folder had this, note the `lib_or_so.dll` and `try.exe`
+
+![bin_folder](bin_folder.png)
+
+- Here is what `lib_dll_or_so.dll` ended up importing from `otel_sdk.dll`
+
+![lib_dll_or_so](lib_dll_or_so.png)
+
+- Here is what `try.exe` refernece from `lib_dll_or_so.dll` - e.g. `foo`
+
+![try_importing_lib](try_importing_lib.png)
+
+- And what `try.exe` references from `otel_sdk.dll`
+
+![try_importing_otel_sdk](try_importing_otel_sdk.png)