package: add ABI version checking

jim.h now includes JIM_ABI_VERSION that should be incremented whenever
the ABI changes. Then all loadable modules should call Jim_CheckAbiVersion()
to make sure they are loaded against the correct version.

Add Jim_PackageProvideCheck() that does both Jim_CheckAbiVersion()
and Jim_PackageProvide() to simplify the implementation of loadable extensions.

Also rename the "big" sqlite3 extension to just sqlite to avoid a naming conflict with
the smaller jim-sqlite3 extension.

Signed-off-by: Steve Bennett <steveb@workware.net.au>

1 files changed, 3 insertions, 5 deletions

diff --git a/jim-exec.c b/jim-exec.c
index 694b9cc..5a21a1f 100644
--- a/jim-exec.c
+++ b/jim-exec.c
@@ -82,9 +82,7 @@ static int Jim_ExecCmd(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 
 int Jim_execInit(Jim_Interp *interp)
 {
-    if (Jim_PackageProvide(interp, "exec", "1.0", JIM_ERRMSG))
-        return JIM_ERR;
-
+    Jim_PackageProvideCheck(interp, "exec");
     Jim_CreateCommand(interp, "exec", Jim_ExecCmd, NULL, NULL);
     return JIM_OK;
 }
@@ -1230,8 +1228,8 @@ static int JimCleanupChildren(Jim_Interp *interp, int numPids, pidtype *pidPtr,
 int Jim_execInit(Jim_Interp *interp)
 {
     struct WaitInfoTable *waitinfo;
-    if (Jim_PackageProvide(interp, "exec", "1.0", JIM_ERRMSG))
-        return JIM_ERR;
+
+    Jim_PackageProvideCheck(interp, "exec");
 
     waitinfo = JimAllocWaitInfoTable();
     Jim_CreateCommand(interp, "exec", Jim_ExecCmd, waitinfo, JimFreeWaitInfoTable);