commit d20279494a3a311c7aefa313174c45d32aa7f5d1
author Manolis Stamatogiannakis <mstamat@gmail.com> Mon Mar 01 04:29:57 2021 +0100
committer GitHub <noreply@github.com> Sun Feb 28 22:29:57 2021 -0500
tree ee5dc615a34501a4466b707782c277be0b7ae615
parent a8e2615aa885a121b8cf8e9cd07696207356a25a

bpo-42603: Use pkg-config to get TCL/TK paths for tkinter. (GH-23721)

configure

diff --git a/configure b/configure
index 8c94825..2d5a61e 100755
--- a/configure
+++ b/configure
@@ -10714,8 +10714,13 @@
   then
     as_fn_error $? "use both --with-tcltk-includes='...' and --with-tcltk-libs='...' or neither" "$LINENO" 5
   fi
-  TCLTK_INCLUDES=""
-  TCLTK_LIBS=""
+  if test -n "$PKG_CONFIG" && "$PKG_CONFIG" --exists tcl tk; then
+    TCLTK_INCLUDES="`"$PKG_CONFIG" tcl tk --cflags-only-I 2>/dev/null`"
+    TCLTK_LIBS="`"$PKG_CONFIG" tcl tk --libs 2>/dev/null`"
+  else
+    TCLTK_INCLUDES=""
+    TCLTK_LIBS=""
+  fi
 else
   TCLTK_INCLUDES="$with_tcltk_includes"
   TCLTK_LIBS="$with_tcltk_libs"