From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/iconv/m4/eilseq.m4 | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 jni/iconv/m4/eilseq.m4

(limited to 'jni/iconv/m4/eilseq.m4')

diff --git a/jni/iconv/m4/eilseq.m4 b/jni/iconv/m4/eilseq.m4
new file mode 100644
index 0000000..792d514
--- /dev/null
+++ b/jni/iconv/m4/eilseq.m4
@@ -0,0 +1,67 @@
+#serial 1
+
+AC_PREREQ(2.50)
+
+# The EILSEQ errno value ought to be defined in <errno.h>, according to
+# ISO C 99 and POSIX.  But some systems (like SunOS 4) don't define it,
+# and some systems (like BSD/OS) define it in <wchar.h> not <errno.h>.
+
+# Define EILSEQ as a C macro and as a substituted macro in such a way that
+# 1. on all systems, after inclusion of <errno.h>, EILSEQ is usable,
+# 2. on systems where EILSEQ is defined elsewhere, we use the same numeric
+#    value.
+
+AC_DEFUN([AC_EILSEQ],
+[
+  AC_REQUIRE([AC_PROG_CC])dnl
+
+  dnl Check for any extra headers that could define EILSEQ.
+  AC_CHECK_HEADERS(wchar.h)
+
+  AC_CACHE_CHECK([for EILSEQ], ac_cv_decl_EILSEQ, [
+    AC_EGREP_CPP(yes,[
+#include <errno.h>
+#ifdef EILSEQ
+yes
+#endif
+      ], have_eilseq=1)
+    if test -n "$have_eilseq"; then
+      dnl EILSEQ exists in <errno.h>. Don't need to define EILSEQ ourselves.
+      ac_cv_decl_EILSEQ=yes
+    else
+      AC_EGREP_CPP(yes,[
+#include <errno.h>
+#if HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+#ifdef EILSEQ
+yes
+#endif
+        ], have_eilseq=1)
+      if test -n "$have_eilseq"; then
+        dnl EILSEQ exists in some other system header.
+        dnl Define it to the same value.
+        _AC_COMPUTE_INT([EILSEQ], ac_cv_decl_EILSEQ, [
+#include <errno.h>
+#if HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+/* The following two lines are a workaround against an autoconf-2.52 bug.  */
+#include <stdio.h>
+#include <stdlib.h>
+])
+      else
+        dnl EILSEQ isn't defined by the system. Define EILSEQ ourselves, but
+        dnl don't define it as EINVAL, because iconv() callers want to
+        dnl distinguish EINVAL and EILSEQ.
+        ac_cv_decl_EILSEQ=ENOENT
+      fi
+    fi
+  ])
+  if test "$ac_cv_decl_EILSEQ" != yes; then
+    AC_DEFINE_UNQUOTED([EILSEQ], [$ac_cv_decl_EILSEQ],
+                       [Define as good substitute value for EILSEQ.])
+    EILSEQ="$ac_cv_decl_EILSEQ"
+    AC_SUBST(EILSEQ)
+  fi
+])
-- 
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