From aae966bcc193968e460a4ec4a8163cde6a01f8a3 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Wed, 6 Sep 2023 20:59:36 +0200
Subject: [PATCH] libtextstyle: Don't export symbols from static MSVC .obj
 files.

* libtextstyle/lib/Makefile.am (config.h): Don't alias isatty to
libtextstyle_isatty here, before the Windows header files have been included.
* libtextstyle/gnulib-local/lib/isatty.c.diff: New file.
* libtextstyle/Makefile.am (EXTRA_DIST): Add it.
---
 libtextstyle/Makefile.am                    |  3 ++-
 libtextstyle/gnulib-local/lib/isatty.c.diff | 15 +++++++++++++++
 libtextstyle/lib/Makefile.am                |  3 ---
 3 files changed, 17 insertions(+), 4 deletions(-)
 create mode 100644 libtextstyle/gnulib-local/lib/isatty.c.diff

diff --git a/libtextstyle/Makefile.am b/libtextstyle/Makefile.am
index ca2d03bbb..7544f5280 100644
--- a/libtextstyle/Makefile.am
+++ b/libtextstyle/Makefile.am
@@ -1,5 +1,5 @@
 ## Makefile for the toplevel directory of GNU libtextstyle
-## Copyright (C) 1995-2022 Free Software Foundation, Inc.
+## Copyright (C) 1995-2023 Free Software Foundation, Inc.
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
@@ -55,6 +55,7 @@ EXTRA_DIST = \
   gnulib-local/lib/html-styled-ostream.oo.h \
   gnulib-local/lib/iconv-ostream.oo.c \
   gnulib-local/lib/iconv-ostream.oo.h \
+  gnulib-local/lib/isatty.c.diff \
   gnulib-local/lib/libcroco/cr-additional-sel.c \
   gnulib-local/lib/libcroco/cr-additional-sel.h \
   gnulib-local/lib/libcroco/cr-attr-sel.c \
diff --git a/libtextstyle/gnulib-local/lib/isatty.c.diff b/libtextstyle/gnulib-local/lib/isatty.c.diff
new file mode 100644
index 000000000..e1133220e
--- /dev/null
+++ b/libtextstyle/gnulib-local/lib/isatty.c.diff
@@ -0,0 +1,15 @@
+*** isatty.c.orig	2023-09-06 17:28:49.893388907 +0200
+--- isatty.c	2023-09-06 17:30:02.718035282 +0200
+***************
+*** 162,167 ****
+--- 162,171 ----
+  # define _isatty_nothrow _isatty
+  #endif
+  
++ #ifdef IN_LIBTEXTSTYLE
++ # define isatty libtextstyle_isatty
++ #endif
++ 
+  /* Determine whether FD refers to a console device.  Return 1 if yes.
+     Return 0 and set errno if no. (ptsname_r relies on the errno value.)  */
+  int
diff --git a/libtextstyle/lib/Makefile.am b/libtextstyle/lib/Makefile.am
index 324d189db..b0fd3851a 100644
--- a/libtextstyle/lib/Makefile.am
+++ b/libtextstyle/lib/Makefile.am
@@ -216,9 +216,6 @@ config.h: $(BUILT_SOURCES) libtextstyle.sym
 	  echo '#include "../config.h"'; \
 	  echo; \
 	  echo '#endif /* LIBTEXTSTYLE_CONFIG_H */'; \
-	  case "@host_os@" in \
-	    mingw* | windows*) echo '#define isatty libtextstyle_isatty' ;; \
-	  esac; \
 	} > config.h && \
 	if test -n "$(NAMESPACING)" && test -n "$(HAVE_GLOBAL_SYMBOL_PIPE)"; then \
 	  { \
-- 
2.47.3