Add static build when tag "static_build" is used

justfile

@@ -12,13 +12,22 @@ build go-build-args='-v':
 			;;
 		*)
 			dylib_extension="so"
+			staticlib_extension="a"
 	esac
 	if ! test -f libwasmer_runtime_c_api.${dylib_extension}; then
 		cargo build --release
 		ln -s ../target/release/deps/libwasmer_runtime_c_api-*.${dylib_extension} libwasmer_runtime_c_api.${dylib_extension}
 	fi
 	go build {{go-build-args}} .
 
+	if test ! -z "${staticlib_extension:-}"; then
+		if ! test -f libwasmer_runtime_c_api.${staticlib_extension}; then
+			cargo build --release
+			ln -s ../target/release/deps/libwasmer_runtime_c_api-*.${staticlib_extension} libwasmer_runtime_c_api.${staticlib_extension}
+		fi
+		go build {{go-build-args}} -tags "static_build" .
+	fi
+
 # Build the `go-wasmer` bin.
 build-bin go-build-args='-v':
 	cd go-wasmer && go build {{go-build-args}} -o ../target/go/go-wasmer .
@@ -45,6 +54,15 @@ test:
 	# Run the long examples.
 	go test -test.v $(find . -type f \( -name "example_*_test.go" \! -name "_example_import_test.go" \) )
 
+	if test -f libwasmer_runtime_c_api.a; then
+		# Run the tests.
+		GODEBUG=cgocheck=2 go test -tags "static_build" -test.v $(find test -type f \( -name "*_test.go" \! -name "example_*.go" \! -name "benchmark*.go" \) ) test/imports.go
+		# Run the short examples.
+		go test -tags "static_build" -test.v example_test.go
+		# Run the long examples.
+		go test -tags "static_build" -test.v $(find . -type f \( -name "example_*_test.go" \! -name "_example_import_test.go" \) )
+	fi
+
 # Run benchmarks. Subjects can be `wasmer`, `wagon` or `life`. Filter is a regex to select the benchmarks.
 bench subject='wasmer' filter='.*':
 	cd benchmarks/{{subject}} && go test -bench '{{filter}}' benchmarks_test.go

wasmer/bridge.go

@@ -1,6 +1,5 @@
 package wasmer
 
-// #cgo LDFLAGS: -Wl,-rpath,${SRCDIR} -L${SRCDIR} -lwasmer_runtime_c_api
 // #include "./wasmer.h"
 //
 import "C"

wasmer/wasmer_link_dynamic.go

@@ -0,0 +1,6 @@
+// +build !static_build
+
+package wasmer
+
+// #cgo LDFLAGS: -Wl,-rpath,${SRCDIR} -L${SRCDIR} -lwasmer_runtime_c_api
+import "C"

wasmer/wasmer_link_static.go

@@ -0,0 +1,6 @@
+// +build static_build
+
+package wasmer
+
+// #cgo LDFLAGS: -lm -ldl -lrt -L${SRCDIR} -l:libwasmer_runtime_c_api.a
+import "C"