From 3e7467b231de015ec9f31a4982206e9d79f3f948 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=90=D0=BB=D0=B5=D0=BA=D1=81=D0=B5=D0=B9?=
 <alexey.pawlow@gmail.com>
Date: Thu, 17 Jun 2021 18:52:09 +0530
Subject: [PATCH 053/N] build: Fix ncursesw include lookup

Mirror what is already done for libffi; Look it up via
pkg-config and use the exported path via sysconfig in setup.py
---
 Makefile.pre.in | 4 ++++
 configure.ac    | 9 ++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/Makefile.pre.in b/Makefile.pre.in
index cfe8634..e7c7b89 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -347,6 +347,10 @@ IO_OBJS=	\
 		Modules/_io/bytesio.o \
 		Modules/_io/stringio.o
 
+##########################################################################
+
+NCURSESW_INCLUDEDIR=	@NCURSESW_INCLUDEDIR@
+
 ##########################################################################
 # Parser
 
diff --git a/configure.ac b/configure.ac
index 19b866a..a566bba 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6900,10 +6900,17 @@ AS_VAR_IF([have_panel], [no], [
   AC_MSG_RESULT([$have_panel (CFLAGS: $PANEL_CFLAGS, LIBS: $PANEL_LIBS)])
 ])
 
+if test -n "$PKG_CONFIG"; then
+    NCURSESW_INCLUDEDIR="`"$PKG_CONFIG" ncursesw --cflags-only-I 2>/dev/null | sed -e 's/^-I//;s/ *$//'`"
+else
+    NCURSESW_INCLUDEDIR=""
+fi
+AC_SUBST(NCURSESW_INCLUDEDIR)
+
 # first curses header check
 ac_save_cppflags="$CPPFLAGS"
 if test "$cross_compiling" = no; then
-  CPPFLAGS="$CPPFLAGS -I/usr/include/ncursesw"
+  CPPFLAGS="$CPPFLAGS -I$NCURSESW_INCLUDEDIR"
 fi
 
 # On Solaris, term.h requires curses.h