This patch hard-codes the Tk library directory during package initialization.

See <http://core.tcl.tk/tk/tktview/765642ffffffffffffff>.

diff --git a/generic/tkWindow.c b/generic/tkWindow.c
index b5cbbab..96b5501 100644
--- a/generic/tkWindow.c
+++ b/generic/tkWindow.c
@@ -988,6 +988,7 @@ TkCreateMainWindow(
 
     Tcl_SetVar2(interp, "tk_patchLevel", NULL, TK_PATCH_LEVEL, TCL_GLOBAL_ONLY);
     Tcl_SetVar2(interp, "tk_version",    NULL, TK_VERSION,     TCL_GLOBAL_ONLY);
+    Tcl_SetVar2(interp, "tk_library",    NULL, TK_LIBRARY,     TCL_GLOBAL_ONLY);
 
     tsdPtr->numMainWindows++;
     return tkwin;
diff --git a/unix/Makefile.in b/unix/Makefile.in
index f21fdbb..c61b0df 100644
--- a/unix/Makefile.in
+++ b/unix/Makefile.in
@@ -1029,7 +1029,7 @@ tkVisual.o: $(GENERIC_DIR)/tkVisual.c
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkVisual.c
 
 tkWindow.o: $(GENERIC_DIR)/tkWindow.c
-	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkWindow.c
+	$(CC) -c $(CC_SWITCHES) -DTK_LIBRARY=\"${TK_LIBRARY}\" $(GENERIC_DIR)/tkWindow.c
 
 tkButton.o: $(GENERIC_DIR)/tkButton.c
 	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tkButton.c
?id=d4732deb4f885152e98b64a70806fbe5e4b44843'>refs</a><a class='active' href='/guix/log/gnu/build/install.scm'>log</a><a href='/guix/tree/gnu/build/install.scm?id=d4732deb4f885152e98b64a70806fbe5e4b44843'>tree</a><a href='/guix/commit/gnu/build/install.scm?id=d4732deb4f885152e98b64a70806fbe5e4b44843'>commit</a><a href='/guix/diff/gnu/build/install.scm?id=d4732deb4f885152e98b64a70806fbe5e4b44843'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/build/install.scm'>
<input type='hidden' name='id' value='d4732deb4f885152e98b64a70806fbe5e4b44843'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=d4732deb4f885152e98b64a70806fbe5e4b44843'>root</a>/<a href='/guix/log/gnu?id=d4732deb4f885152e98b64a70806fbe5e4b44843'>gnu</a>/<a href='/guix/log/gnu/build?id=d4732deb4f885152e98b64a70806fbe5e4b44843'>build</a>/<a href='/guix/log/gnu/build/install.scm?id=d4732deb4f885152e98b64a70806fbe5e4b44843'>install.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/build/install.scm?id=d4732deb4f885152e98b64a70806fbe5e4b44843&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-09-02 17:05:22 +0200'>2020-09-02</span></td><td><a href='/guix/commit/gnu/build/install.scm?id=22827396baea149f193f6e9558b522e6d9c89a44'>install: Factorize cow-store procedure.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-05-05 20:43:21 +0200'>2020-05-05</span></td><td><a href='/guix/commit/gnu/build/install.scm?id=87a40d7203a813921b3ef0805c2b46c0026d6c31'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-05-05 16:13:53 +0200'>2020-05-05</span></td><td><a href='/guix/commit/gnu/build/install.scm?id=f19cf27c2b9ff92e2c0fd931ef7fde39c376adaa'>image: Add a new API.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-05-05 16:08:33 +0200'>2020-05-05</span></td><td><a href='/guix/commit/gnu/build/install.scm?id=892bbea750e5733979ee0423cbdfcea222b07925'>build: install: Do not set store GID.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-05-05 16:08:32 +0200'>2020-05-05</span></td><td><a href='/guix/commit/gnu/build/install.scm?id=5990e95b607b888edd862a2ccb5ca69dcd17d801'>build: install: Ignore chown exceptions.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-04-11 19:22:25 +0200'>2020-04-11</span></td><td><a href='/guix/commit/gnu/build/install.scm?id=87241947aa2c0148a6f06989057a113c57ea9208'>install: 'populate-root-file-system' can be passed extra directives.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-03-07 20:05:09 +0100'>2019-03-07</span></td><td><a href='/guix/commit/gnu/build/install.scm?id=0ae735bcc8ff7fdc89d67b492bdee9091ee19e86'>activation: Build account databases with (gnu build accounts).</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>