gentoo-overlay/media-gfx/sane-backends/files/sane-backends-1.0.31-autoconf-2.70.patch

From 445b5bd7e19245c08de6a0e669dd9211d2597bfa Mon Sep 17 00:00:00 2001
From: Olaf Meeuwissen <paddy-hack@member.fsf.org>
Date: Fri, 1 Jan 2021 15:53:11 +0900
Subject: [PATCH] Drop use of obsoleted autoconf AC_HEADER_STDC macro.  Fixes
 #409

Use of the STDC_HEADER pre-processor macro that the autoconf macro
used to define has been removed.  Conditionalized code is now used
unconditionally.  This should be fine as the macro checks for ANSI
C, i.e. C89 (ISO C90), compliant headers.  We already require C99.
---
 acinclude.m4        |  3 ---
 lib/md5.c           | 10 ++--------
 sanei/sanei_pa4s2.c |  8 +++-----
 sanei/sanei_pp.c    |  8 +++-----
 4 files changed, 8 insertions(+), 21 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index e10f8ceb2..9393278c2 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -73,9 +73,6 @@ AC_DEFUN([SANE_CHECK_MISSING_HEADERS],
   if test "${ac_cv_header_unistd_h}" != "yes" ; then
     MISSING_HEADERS="${MISSING_HEADERS}\"unistd.h\" "
   fi
-  if test "${ac_cv_header_stdc}" != "yes" ; then
-    MISSING_HEADERS="${MISSING_HEADERS}\"ANSI C headers\" "
-  fi
   if test "${MISSING_HEADERS}" != "" ; then
     echo "*** The following essential header files couldn't be found:"
     echo "*** ${MISSING_HEADERS}"
diff --git a/lib/md5.c b/lib/md5.c
index 923a17c78..009c6d9a0 100644
--- a/lib/md5.c
+++ b/lib/md5.c
@@ -26,14 +26,8 @@
 
 #include <sys/types.h>
 
-#if STDC_HEADERS || defined _LIBC
-# include <stdlib.h>
-# include <string.h>
-#else
-# ifndef HAVE_MEMCPY
-#  define memcpy(d, s, n) bcopy ((s), (d), (n))
-# endif
-#endif
+#include <stdlib.h>
+#include <string.h>
 
 #include "md5.h"
 
diff --git a/sanei/sanei_pa4s2.c b/sanei/sanei_pa4s2.c
index b1d95fe02..5365151fd 100644
--- a/sanei/sanei_pa4s2.c
+++ b/sanei/sanei_pa4s2.c
@@ -150,11 +150,9 @@ static int sanei_pa4s2_dbg_init_called = SANE_FALSE;
 
 #endif /* NDEBUG */
 
-#if defined(STDC_HEADERS)
-# include <errno.h>
-# include <stdio.h>
-# include <stdlib.h>
-#endif
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
 #if defined(HAVE_STRING_H)
 # include <string.h>
 #elif defined(HAVE_STRINGS_H)
diff --git a/sanei/sanei_pp.c b/sanei/sanei_pp.c
index 3077342e4..752945a89 100644
--- a/sanei/sanei_pp.c
+++ b/sanei/sanei_pp.c
@@ -135,11 +135,9 @@ inb( u_long port )
 #include "../include/sane/sanei_debug.h"
 #include "../include/sane/sanei_pp.h"
 
-#if defined(STDC_HEADERS)
-# include <errno.h>
-# include <stdio.h>
-# include <stdlib.h>
-#endif
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
 #if defined(HAVE_STRING_H)
 # include <string.h>
 #elif defined(HAVE_STRINGS_H)
-- 
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