Patch for homebrew formula to build macvim with anaconda's (or another non-system/non-framework) python distribution

my.patch

diff --git a/src/configure.in b/src/configure.in
index e57be41..7606d1f 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -1011,9 +1011,14 @@ AC_ARG_ENABLE(pythoninterp,
 	[enable_pythoninterp="no"])
 AC_MSG_RESULT($enable_pythoninterp)
 if test "$enable_pythoninterp" = "yes" -o "$enable_pythoninterp" = "dynamic"; then
-  dnl -- find the python executable
-  AC_PATH_PROGS(vi_cv_path_python, python2 python)
-  if test "X$vi_cv_path_python" != "X"; then
+    dnl -- find the python executable
+    dnl  AC_PATH_PROGS(vi_cv_path_python, python2 python)
+    AC_MSG_CHECKING(--with-python argument)
+    AC_ARG_WITH(python, [  --with-python=PATH       which python to use (default: python)],
+        python_name="$withval"; AC_MSG_RESULT($python_name),
+        python_name="python"; AC_MSG_RESULT(no))
+    AC_SUBST(vi_cv_path_python, $python_name)
+    if test "X$vi_cv_path_python" != "X"; then
 
     dnl -- get its version number
     AC_CACHE_CHECK(Python version,vi_cv_var_python_version,
@@ -1096,30 +1101,28 @@ eof
 	    dnl -- delete the lines from make about Entering/Leaving directory
 	    eval "`cd ${PYTHON_CONFDIR} && make -f "${tmp_mkf}" __ | sed '/ directory /d'`"
 	    rm -f -- "${tmp_mkf}"
-	    if test "x$MACOSX" = "xyes" && ${vi_cv_path_python} -c \
-		"import sys; sys.exit(${vi_cv_var_python_version} < 2.3)"; then
-	      vi_cv_path_python_plibs="-framework Python"
-	    else
-	      if test "${vi_cv_var_python_version}" = "1.4"; then
-		  vi_cv_path_python_plibs="${PYTHON_CONFDIR}/libModules.a ${PYTHON_CONFDIR}/libPython.a ${PYTHON_CONFDIR}/libObjects.a ${PYTHON_CONFDIR}/libParser.a"
-	      else
-		  vi_cv_path_python_plibs="-L${PYTHON_CONFDIR} -lpython${vi_cv_var_python_version}"
-	      fi
-	      vi_cv_path_python_plibs="${vi_cv_path_python_plibs} ${python_BASEMODLIBS} ${python_LIBS} ${python_SYSLIBS} ${python_LINKFORSHARED}"
-	      dnl remove -ltermcap, it can conflict with an earlier -lncurses
-	      vi_cv_path_python_plibs=`echo $vi_cv_path_python_plibs | sed s/-ltermcap//`
-	    fi
+dnl	    if test "x$MACOSX" = "xyes" && ${vi_cv_path_python} -c \
+dnl		"import sys; sys.exit(${vi_cv_var_python_version} < 2.3)"; then
+dnl	      vi_cv_path_python_plibs="-framework Python"
+dnl	    else
+dnl	      if test "${vi_cv_var_python_version}" = "1.4"; then
+dnl		  vi_cv_path_python_plibs="${PYTHON_CONFDIR}/libModules.a ${PYTHON_CONFDIR}/libPython.a ${PYTHON_CONFDIR}/libObjects.a ${PYTHON_CONFDIR}/libParser.a"
+dnl	      else
+dnl		  vi_cv_path_python_plibs="-L${PYTHON_CONFDIR} -lpython${vi_cv_var_python_version}"
+dnl	      fi
+dnl	      vi_cv_path_python_plibs="${vi_cv_path_python_plibs} ${python_BASEMODLIBS} ${python_LIBS} ${python_SYSLIBS} ${python_LINKFORSHARED}"
+dnl	      dnl remove -ltermcap, it can conflict with an earlier -lncurses
+dnl	      vi_cv_path_python_plibs=`echo $vi_cv_path_python_plibs | sed s/-ltermcap//`
+dnl	    fi
+        vi_cv_path_python_plibs="`${vi_cv_path_python}-config --ldflags`"
+        dnl remove -ltermcap, it can conflict with an earlier -lncurses
+        vi_cv_path_python_plibs=`echo $vi_cv_path_python_plibs | sed s/-ltermcap//`
 	])
 
 	if test "X$python_DLLLIBRARY" != "X"; then
 	  python_INSTSONAME="$python_DLLLIBRARY"
 	fi
-	PYTHON_LIBS="${vi_cv_path_python_plibs}"
-	if test "${vi_cv_path_python_pfx}" = "${vi_cv_path_python_epfx}"; then
-	  PYTHON_CFLAGS="-I${vi_cv_path_python_pfx}/include/python${vi_cv_var_python_version} -DPYTHON_HOME='\"${vi_cv_path_python_pfx}\"'"
-	else
-	  PYTHON_CFLAGS="-I${vi_cv_path_python_pfx}/include/python${vi_cv_var_python_version} -I${vi_cv_path_python_epfx}/include/python${vi_cv_var_python_version} -DPYTHON_HOME='\"${vi_cv_path_python_pfx}\"'"
-	fi
+    PYTHON_CFLAGS="`${vi_cv_path_python}-config --includes` -DPYTHON_HOME='\"${vi_cv_path_python_pfx}\"'"
 	PYTHON_SRC="if_python.c"
 	PYTHON_OBJ="objects/if_python.o"
 	if test "${vi_cv_var_python_version}" = "1.4"; then

Hi. Found this fine patch, but am unsure on how to apply it? Where can I actually find the configure.in file for a brew package?