diff -ruN a/go/Makefile b/go/Makefile
--- a/go/Makefile	2022-10-10 01:01:27.000000000 +0200
+++ b/go/Makefile	2024-03-19 12:33:19.217467384 +0100
@@ -68,19 +68,19 @@
 endif
 
 setid: ../goapps/setid/setid.go CAPGOPACKAGE PSXGOPACKAGE
-	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) $(GO) build $(GO_BUILD_FLAGS) -mod=vendor -o $@ $<
+	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) CGO_CFLAGS="$(CGO_CFLAGS)" CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" $(GO) build $(GO_BUILD_FLAGS) $(GOFLAGS) -mod=vendor -o $@ $<
 
 gowns: ../goapps/gowns/gowns.go CAPGOPACKAGE
-	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) $(GO) build $(GO_BUILD_FLAGS) -mod=vendor -o $@ $<
+	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) CGO_CFLAGS="$(CGO_CFLAGS)" CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" $(GO) build $(GO_BUILD_FLAGS) $(GOFLAGS) -mod=vendor -o $@ $<
 
 captree: ../goapps/captree/captree.go CAPGOPACKAGE
-	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) $(GO) build $(GO_BUILD_FLAGS) -mod=vendor -o $@ $<
+	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) CGO_CFLAGS="$(CGO_CFLAGS)" CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" $(GO) build $(GO_BUILD_FLAGS) $(GOFLAGS) -mod=vendor -o $@ $<
 
 captrace: ../goapps/captrace/captrace.go CAPGOPACKAGE
-	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) $(GO) build $(GO_BUILD_FLAGS) -mod=vendor -o $@ $<
+	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) CGO_CFLAGS="$(CGO_CFLAGS)" CGO_CPPFLAGS="$(CGO_CPPFLAGS)" CGO_CXXFLAGS="$(CGO_CXXFLAGS)" CGO_LDFLAGS="$(CGO_LDFLAGS)" $(GO) build $(GO_BUILD_FLAGS) $(GOFLAGS) -mod=vendor -o $@ $<
 
 ok: ok.go vendor/modules.txt
-	CC="$(CC)" CGO_ENABLED="0" $(GO) build $(GO_BUILD_FLAGS)  -mod=vendor $<
+	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(GO) build $(GO_BUILD_FLAGS)  -mod=vendor $<
 
 try-launching: try-launching.go CAPGOPACKAGE ok
 	CC="$(CC)" CGO_ENABLED="$(CGO_REQUIRED)" $(CGO_LDFLAGS_ALLOW) $(GO) build $(GO_BUILD_FLAGS) -mod=vendor $<