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-rw-r--r--share/mk/host-target.mk31
1 files changed, 31 insertions, 0 deletions
diff --git a/share/mk/host-target.mk b/share/mk/host-target.mk
new file mode 100644
index 000000000000..c6d4562bf15a
--- /dev/null
+++ b/share/mk/host-target.mk
@@ -0,0 +1,31 @@
+# RCSid:
+# $Id: host-target.mk,v 1.6 2011/03/02 05:05:21 sjg Exp $
+
+# Host platform information; may be overridden
+.if !defined(_HOST_OSNAME)
+_HOST_OSNAME != uname -s
+.export _HOST_OSNAME
+.endif
+.if !defined(_HOST_OSREL)
+_HOST_OSREL != uname -r
+.export _HOST_OSREL
+.endif
+.if !defined(_HOST_ARCH)
+_HOST_ARCH != uname -p 2>/dev/null || uname -m
+# uname -p may produce garbage on linux
+.if ${_HOST_ARCH:[\#]} > 1
+_HOST_ARCH != uname -m
+.endif
+.export _HOST_ARCH
+.endif
+
+HOST_OSMAJOR := ${_HOST_OSREL:C/[^0-9].*//}
+HOST_OSTYPE := ${_HOST_OSNAME}-${_HOST_OSREL:C/\([^\)]*\)//}-${_HOST_ARCH}
+HOST_OS := ${_HOST_OSNAME}
+host_os := ${_HOST_OSNAME:tl}
+HOST_TARGET := ${host_os}${HOST_OSMAJOR}-${_HOST_ARCH}
+
+# tr is insanely non-portable, accommodate the lowest common denominator
+TR ?= tr
+toLower = ${TR} 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'
+toUpper = ${TR} 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'