From 8deb67d1dbdfae320d10accea0d82f267dcee672 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Tue, 11 Sep 2001 20:10:44 +0000
Subject: (UTILS_HOST_OS): New file/macro. The body, by Paul Eggert, was moved
 here from configure.in.

---
 m4/host-os.m4 | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 m4/host-os.m4

(limited to 'm4/host-os.m4')

diff --git a/m4/host-os.m4 b/m4/host-os.m4
new file mode 100644
index 000000000..a53692d55
--- /dev/null
+++ b/m4/host-os.m4
@@ -0,0 +1,71 @@
+#serial 1
+
+dnl From Paul Eggert.
+
+# Define HOST_OPERATING_SYSTEM to a name for the host operating system.
+AC_DEFUN([UTILS_HOST_OS],
+[
+  AC_CACHE_CHECK([host operating system],
+    utils_cv_host_operating_system,
+
+    [[case $host_os in
+
+       # These operating system names do not use the default heuristic below.
+       # They are in reverse order, so that more-specific prefixes come first.
+       winnt*)		os='Windows NT';;
+       vos*)		os='VOS';;
+       sysv*)		os='Unix System V';;
+       superux*)	os='SUPER-UX';;
+       sunos*)		os='SunOS';;
+       stop*)		os='STOP';;
+       sco*)		os='SCO Unix';;
+       riscos*)		os='RISC OS';;
+       riscix*)		os='RISCiX';;
+       qnx*)		os='QNX';;
+       pw32*)		os='PW32';;
+       ptx*)		os='ptx';;
+       plan9*)		os='Plan 9';;
+       osf*)		os='Tru64';;
+       os2*)		os='OS/2';;
+       openbsd*)	os='OpenBSD';;
+       nsk*)		os='NonStop Kernel';;
+       nonstopux*)	os='NonStop-UX';;
+       netbsd*)		os='NetBSD';;
+       msdosdjgpp*)	os='DJGPP';;
+       mpeix*)		os='MPE/iX';;
+       mint*)		os='MiNT';;
+       mingw*)		os='MinGW';;
+       lynxos*)		os='LynxOS';;
+       linux*)		os='GNU/Linux';;
+       hpux*)		os='HP-UX';;
+       hiux*)		os='HI-UX';;
+       gnu*)		os='GNU';;
+       freebsd*)	os='FreeBSD';;
+       dgux*)		os='DG/UX';;
+       bsdi*)		os='BSD/OS';;
+       bsd*)		os='BSD';;
+       beos*)		os='BeOS';;
+       aux*)		os='A/UX';;
+       atheos*)		os='AtheOS';;
+       amigaos*)	os='Amiga OS';;
+       aix*)		os='AIX';;
+
+       # The default heuristic takes the initial alphabetic string
+       # from $host_os, but capitalizes its first letter.
+       [A-Za-z]*)
+	 os=`
+	   expr "X$host_os" : 'X\([A-Za-z]\)' | tr '[a-z]' '[A-Z]'
+	 ``
+	   expr "X$host_os" : 'X.\([A-Za-z]*\)'
+	 `
+	 ;;
+
+       # If $host_os does not start with an alphabetic string, use it unchanged.
+       *)
+	 os=$host_os;;
+     esac
+     utils_cv_host_operating_system=$os]])
+  AC_DEFINE_UNQUOTED(HOST_OPERATING_SYSTEM,
+    "$utils_cv_host_operating_system",
+    [The host operating system.])
+])
-- 
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