6 files changed, 23 insertions, 6 deletions
diff --git a/unix/dltest/Makefile.in b/unix/dltest/Makefile.in
index a99fd0b..b1b483b 100644
--- a/unix/dltest/Makefile.in
+++ b/unix/dltest/Makefile.in
@@ -17,7 +17,7 @@ TCL_VERSION=		@TCL_VERSION@
 
 CFLAGS_DEBUG		= @CFLAGS_DEBUG@
 CFLAGS_OPTIMIZE		= @CFLAGS_OPTIMIZE@
-CFLAGS			= @CFLAGS_DEFAULT@ @CFLAGS@ -DTCL_NO_DEPRECATED=1
+CFLAGS			= @CFLAGS_DEFAULT@ @CFLAGS@ -DTCL_NO_DEPRECATED=1 -Wall -Wextra -Wc++-compat -Wconversion -Werror
 LDFLAGS_DEBUG		= @LDFLAGS_DEBUG@
 LDFLAGS_OPTIMIZE	= @LDFLAGS_OPTIMIZE@
 LDFLAGS			= @LDFLAGS_DEFAULT@ @LDFLAGS@
diff --git a/unix/dltest/pkga.c b/unix/dltest/pkga.c
index 579c323..d24a23e 100644
--- a/unix/dltest/pkga.c
+++ b/unix/dltest/pkga.c
@@ -51,7 +51,7 @@ Pkga_EqObjCmd(
     str1 = Tcl_GetStringFromObj(objv[1], &len1);
     str2 = Tcl_GetStringFromObj(objv[2], &len2);
     if (len1 == len2) {
-	result = (Tcl_UtfNcmp(str1, str2, len1) == 0);
+	result = (Tcl_UtfNcmp(str1, str2, (size_t)len1) == 0);
     } else {
 	result = 0;
     }
diff --git a/unix/dltest/pkgb.c b/unix/dltest/pkgb.c
index 41bfdcd..c16a362 100644
--- a/unix/dltest/pkgb.c
+++ b/unix/dltest/pkgb.c
@@ -112,7 +112,7 @@ Pkgb_DemoObjCmd(
     if (Tcl_GetWideIntFromObj(interp, objv[3], &numChars) != TCL_OK) {
 	return TCL_ERROR;
     }
-    result = Tcl_UtfNcmp(Tcl_GetString(objv[1]), Tcl_GetString(objv[2]), numChars);
+    result = Tcl_UtfNcmp(Tcl_GetString(objv[1]), Tcl_GetString(objv[2]), (size_t)numChars);
     Tcl_SetObjResult(interp, Tcl_NewIntObj(result));
     return TCL_OK;
 }
diff --git a/unix/dltest/pkgooa.c b/unix/dltest/pkgooa.c
index ec9fbfd..444bb81 100644
--- a/unix/dltest/pkgooa.c
+++ b/unix/dltest/pkgooa.c
@@ -94,6 +94,15 @@ static TclOOStubs stubsCopy = {
 #ifdef Tcl_GetObjectClassName
     ,NULL
 #endif
+#ifdef Tcl_MethodIsType2
+    ,NULL
+#endif
+#ifdef Tcl_NewInstanceMethod2
+    ,NULL
+#endif
+#ifdef Tcl_NewMethod2
+    ,NULL
+#endif
 };
 
 DLLEXPORT int
diff --git a/unix/dltest/pkgt.c b/unix/dltest/pkgt.c
index 4a02665..e8047db 100644
--- a/unix/dltest/pkgt.c
+++ b/unix/dltest/pkgt.c
@@ -16,12 +16,20 @@
 static int TraceProc2 (
     void *clientData,
     Tcl_Interp *interp,
-	size_t level,
+    size_t level,
     const char *command,
     Tcl_Command commandInfo,
     size_t objc,
-	struct Tcl_Obj *const *objv)
+    struct Tcl_Obj *const *objv)
 {
+    (void)clientData;
+    (void)interp;
+    (void)level;
+    (void)command;
+    (void)commandInfo;
+    (void)objc;
+    (void)objv;
+
     return TCL_OK;
 }
 
diff --git a/unix/dltest/pkgua.c b/unix/dltest/pkgua.c
index 16684a8..409d7c1 100644
--- a/unix/dltest/pkgua.c
+++ b/unix/dltest/pkgua.c
@@ -138,7 +138,7 @@ PkguaEqObjCmd(
     str1 = Tcl_GetStringFromObj(objv[1], &len1);
     str2 = Tcl_GetStringFromObj(objv[2], &len2);
     if (len1 == len2) {
-	result = (Tcl_UtfNcmp(str1, str2, len1) == 0);
+	result = (Tcl_UtfNcmp(str1, str2, (size_t)len1) == 0);
     } else {
 	result = 0;
     }