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+# Copyright 2008 Roy Marples
+
+# Generic definitions
+
+_OS_SH_= uname -s
+_OS!= ${_OS_SH}
+OS?= ${_OS}$(shell ${_OS_SH})
+
+_SUBOS_SH= case `uname -s` in \
+ *BSD|DragonFly) echo "BSD";; \
+ *) echo "";; \
+ esac
+_SUBOS!= ${_SUBOS_SH}
+SUBOS?= ${_SUBOS}$(shell ${_SUBOS_SH})
+
+_LIBNAME_SH= l=`readlink /lib`; case "$$l" in /lib64|lib64) echo "lib64";; *) echo "lib";; esac
+_LIBNAME!= ${_LIBNAME_SH}
+LIBNAME?= ${_LIBNAME}$(shell ${_LIBNAME_SH})
+RC_LIB= /$(LIBNAME)/rc
+
+_DEF_SH= case `uname -s` in Linux) echo "-D_XOPEN_SOURCE=600 -D_BSD_SOURCE";; *) echo;; esac
+_DEF!= ${_DEF_SH}
+CFLAGS+= ${_DEF}$(shell ${_DEF_SH})
+
+_LIBDL_SH= case `uname -s` in Linux) echo "-Wl,-Bdynamic -ldl";; *) echo;; esac
+_LIBDL!= ${_LIBDL_SH}
+LIBDL?= ${_LIBDL}$(shell ${_LIBDL_SH})
+
+_LIBKVM_SH= case `uname -s` in *BSD) echo "-lkvm";; *) echo;; esac
+_LIBKVM!= ${_LIBKVM_SH}
+LIBKVM?= ${_LIBKVM}$(shell ${_LIBKVM_SH})