Remove any '/' chars from the OS name returned by uname.

src/sbbs3/GNUmakefile

@@ -57,6 +57,8 @@ endif
 # this line wont work with solaris unless awk in path is actually gawk 
 os      :=	$(shell echo $(os) | tr "[A-Z]" "[a-z]")
 #os      :=	$(shell echo $(os) | awk '/.*/ { print tolower($$1)}')
+# remove '/' from "os/2"
+os      :=  $(shell echo $(os) | tr -d "/")
 
 ifeq ($(os),freebsd)
  BSD	=	1

src/sbbs3/scfg/GNUmakefile

@@ -35,6 +35,8 @@ ifndef os
  $(warning OS not specified on command line, setting to '$(os)'.)
 endif
 os      :=	$(shell echo $(os) | tr "[A-Z]" "[a-z]")
+# remove '/' from "os/2"
+os      :=  $(shell echo $(os) | tr -d "/")
 
 ODIR	:=	gcc.$(os)
 

xtrn/sbj/GNUmakefile

@@ -23,7 +23,10 @@ ifndef os
  os              =       $(shell uname)
  $(warning OS not specified on command line, setting to '$(os)'.)
 endif
-os      :=	$(shell echo $(os) | awk '/.*/ { print tolower($$1)}')
+os      :=	$(shell echo $(os) | tr "[A-Z]" "[a-z]")
+# remove '/' from "os/2"
+os      :=  $(shell echo $(os) | tr -d "/")
+
 
 LIBDIR	:=	/usr/lib
 DELETE	:=	rm -f -v

xtrn/sbl/GNUmakefile

@@ -29,7 +29,9 @@ ifndef os
  os              =       $(shell uname)
  $(warning OS not specified on command line, setting to '$(os)'.)
 endif
-os      :=	$(shell echo $(os) | awk '/.*/ { print tolower($$1)}')
+os      :=	$(shell echo $(os) | tr "[A-Z]" "[a-z]")
+# remove '/' from "os/2"
+os      :=  $(shell echo $(os) | tr -d "/")
 
 LIBDIR	:=	/usr/lib
 DELETE	:=	rm -f -v