* ext/tk: merge tcltklib for Ruby/Tk installation control

* ext/tcltklib: remove


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7826 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 104 insertions, 0 deletions

diff --git a/ext/tk/stubs.c b/ext/tk/stubs.c
new file mode 100644
index 0000000000..3913abb570
--- /dev/null
+++ b/ext/tk/stubs.c
@@ -0,0 +1,104 @@
+int ruby_tcltk_stubs();
+
+#if defined USE_TCL_STUBS && defined USE_TK_STUBS
+#include "ruby.h"
+
+#if defined _WIN32 || defined __CYGWIN__
+# include "util.h"
+# include <windows.h>
+  typedef HINSTANCE DL_HANDLE;
+# define DL_OPEN LoadLibrary
+# define DL_SYM GetProcAddress
+# define TCL_INDEX 4
+# define TK_INDEX 3
+# define TCL_NAME "tcl89%s"
+# define TK_NAME "tk89%s"
+# undef DLEXT
+# define DLEXT ".dll"
+#elif defined HAVE_DLOPEN
+# include <dlfcn.h>
+  typedef void *DL_HANDLE;
+# define DL_OPEN(file) dlopen(file, RTLD_LAZY|RTLD_GLOBAL)
+# define DL_SYM dlsym
+# define TCL_INDEX 8
+# define TK_INDEX 7
+# define TCL_NAME "libtcl8.9%s"
+# define TK_NAME "libtk8.9%s"
+#endif
+
+#include <tcl.h>
+#include <tk.h>
+
+int
+ruby_tcltk_stubs()
+{
+    DL_HANDLE tcl_dll;
+    DL_HANDLE tk_dll;
+    void (*p_Tcl_FindExecutable)(const char *);
+    Tcl_Interp *(*p_Tcl_CreateInterp)();
+    int (*p_Tk_Init)(Tcl_Interp *);
+    Tcl_Interp *tcl_ip;
+    int n;
+    char *ruby_tcl_dll = 0;
+    char *ruby_tk_dll = 0;
+    char tcl_name[20];
+    char tk_name[20];
+
+    ruby_tcl_dll = getenv("RUBY_TCL_DLL");
+#if defined _WIN32
+    if (ruby_tcl_dll) ruby_tcl_dll = ruby_strdup(ruby_tcl_dll);
+#endif
+    ruby_tk_dll = getenv("RUBY_TK_DLL");
+    if (ruby_tcl_dll && ruby_tk_dll) {
+        tcl_dll = (DL_HANDLE)DL_OPEN(ruby_tcl_dll);
+        tk_dll = (DL_HANDLE)DL_OPEN(ruby_tk_dll);
+    } else {
+        snprintf(tcl_name, sizeof tcl_name, TCL_NAME, DLEXT);
+        snprintf(tk_name, sizeof tk_name, TK_NAME, DLEXT);
+        /* examine from 8.9 to 8.1 */
+        for (n = '9'; n > '0'; n--) {
+            tcl_name[TCL_INDEX] = n;
+            tk_name[TK_INDEX] = n;
+            tcl_dll = (DL_HANDLE)DL_OPEN(tcl_name);
+            tk_dll = (DL_HANDLE)DL_OPEN(tk_name);
+            if (tcl_dll && tk_dll)
+                break;
+        }
+    }
+
+#if defined _WIN32
+    if (ruby_tcl_dll) ruby_xfree(ruby_tcl_dll);
+#endif
+
+    if (!tcl_dll || !tk_dll)
+        return -1;
+
+    p_Tcl_FindExecutable = (void (*)(const char *))DL_SYM(tcl_dll, "Tcl_FindExecutable");
+    if (!p_Tcl_FindExecutable)
+        return -7;
+
+    p_Tcl_FindExecutable("ruby");
+
+    p_Tcl_CreateInterp = (Tcl_Interp *(*)())DL_SYM(tcl_dll, "Tcl_CreateInterp");
+    if (!p_Tcl_CreateInterp)
+        return -2;
+
+    tcl_ip = (*p_Tcl_CreateInterp)();
+    if (!tcl_ip)
+        return -3;
+
+    p_Tk_Init = (int (*)(Tcl_Interp *))DL_SYM(tk_dll, "Tk_Init");
+    if (!p_Tk_Init)
+        return -4;
+    (*p_Tk_Init)(tcl_ip);
+
+    if (!Tcl_InitStubs(tcl_ip, "8.1", 0))
+        return -5;
+    if (!Tk_InitStubs(tcl_ip, "8.1", 0))
+        return -6;
+
+    Tcl_DeleteInterp(tcl_ip);
+
+    return 0;
+}
+#endif