imp: allow cgo while disabling libwasmvm linking

.circleci/config.yml

@@ -201,6 +201,25 @@ jobs:
       - run:
           name: Test package "cosmwasm" without cgo
           command: CGO_ENABLED=0 go test .
+
+  # Build types and cosmwasm with libwasmvm linking disabled
+  nolink_libwasmvm:
+    docker:
+      - image: cimg/go:1.21.4
+    steps:
+      - checkout
+      - run:
+          name: Build package "types" without cgo
+          command: go build -tags "nolink_libwasmvm" ./types
+      - run:
+          name: Build package "cosmwasm" without cgo
+          command: go build -tags "nolink_libwasmvm" .
+      - run:
+          name: Test package "types" without cgo
+          command: go test -tags "nolink_libwasmvm" ./types
+      - run:
+          name: Test package "cosmwasm" with libwasmvm linking disabled
+          command: go test -tags "nolink_libwasmvm" .
 
   tidy-go:
     docker:
@@ -433,6 +452,7 @@ workflows:
       - libwasmvm_audit
       - format-go
       - wasmvm_no_cgo
+      - nolink_libwasmvm
       - tidy-go
       - format-scripts
       - lint-scripts

README.md

@@ -90,6 +90,13 @@ go build .
 CGO_ENABLED=0 go build .
 ```
 
+In the case that it may be desirable to compile with cgo, but with libwasmvm linking disabled an additional build tag is available.
+
+```sh
+# Build with CGO, but with libwasmvm linking disabled
+go build -tags "nolink_libwasmvm"
+```
+
 ## Supported Platforms
 
 See [COMPILER_VERSIONS.md](docs/COMPILER_VERSIONS.md) for information on Go and

ibc_test.go

@@ -1,4 +1,4 @@
-//go:build cgo
+//go:build cgo && !nolink_libwasmvm
 
 package cosmwasm
 

lib.go

@@ -1,4 +1,4 @@
-//go:build cgo
+//go:build cgo && !nolink_libwasmvm
 
 // This file contains the part of the API that is exposed when cgo is enabled.
 

lib_test.go

@@ -1,4 +1,4 @@
-//go:build cgo
+//go:build cgo && !nolink_libwasmvm
 
 package cosmwasm
 

version_cgo.go

@@ -1,4 +1,4 @@
-//go:build cgo
+//go:build cgo && !nolink_libwasmvm
 
 package cosmwasm
 

version_no_cgo.go

@@ -1,4 +1,4 @@
-//go:build !cgo
+//go:build !cgo || nolink_libwasmvm
 
 package cosmwasm