From: Christopher Chavez <chrischavez@gmx.us>
Date: Fri, 19 May 2023 19:09:59 +0000 (-0500)
Subject: gh-103839: Allow building Tkinter against Tcl 8.7 without external libtommath (GH... 
X-Git-Tag: v3.12.0b1~48
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=625887e6df5dbebe48be172b424ba519e2ba2ddc;p=thirdparty%2FPython%2Fcpython.git

gh-103839: Allow building Tkinter against Tcl 8.7 without external libtommath (GH-103842)
---

diff --git a/Misc/NEWS.d/next/Library/2023-04-25-16-31-00.gh-issue-103839.tpyLhI.rst b/Misc/NEWS.d/next/Library/2023-04-25-16-31-00.gh-issue-103839.tpyLhI.rst
new file mode 100644
index 000000000000..1d40a8fbcd3f
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2023-04-25-16-31-00.gh-issue-103839.tpyLhI.rst
@@ -0,0 +1,2 @@
+Avoid compilation error due to tommath.h not being found when building
+Tkinter against Tcl 8.7 built with bundled libtommath.
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index 4dada0b28f05..49c94447c723 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -60,6 +60,9 @@ Copyright (C) 1994 Steen Lumholt.
 #error "Tk older than 8.5.12 not supported"
 #endif
 
+#ifndef TCL_WITH_EXTERNAL_TOMMATH
+#define TCL_NO_TOMMATH_H
+#endif
 #include <tclTomMath.h>
 
 #if !(defined(MS_WINDOWS) || defined(__CYGWIN__))