10703 smatch unreachable code checking needs reworking
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>

*** 20,29 ****
--- 20,31 ----
  #
  #
  # Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
+ # Copyright 2019 Joyent, Inc.
+ #
  
  CRTI = crti.o
  CRTN = crtn.o
  CRT1 = crt1.o
  VALUES = values-Xa.o values-Xc.o values-Xs.o values-Xt.o \
*** 49,74 ****
  $(INTEL_BLD)ROOTOBJECTS64 += $(ROOTLIB64)/gcrt1.o
  
  ASFLAGS +=      -P -D__STDC__ -D_ASM -DPIC $(AS_PICFLAGS)
  
  values-xpg6.o := CPPFLAGS += -I$(SRC)/lib/libc/inc
- values-xpg6.lint := CPPFLAGS += -I$(SRC)/lib/libc/inc
  $(COMMON_CRT) $(VALUES) := CFLAGS += $(C_PICFLAGS)
  $(COMMON_CRT) $(VALUES) := CFLAGS64 += $(C_PICFLAGS64)
  
  .KEEP_STATE:
  
  all:    $(OBJECTS)
  
  clean clobber:
          $(RM) $(OBJECTS)
  
- %.lint: ../common/%.c
-         $(LINT.c) $(LINTCHECKFLAGS) $<
  
- lint:   $(VALUES:%.o=%.lint) $(COMMON_CRT:%.o=%.lint)
- 
  $(CRT1): $(COMMON_CRT) $(MACH_CRT)
          $(LD) -r $(MACH_CRT) $(COMMON_CRT) -o $(CRT1)
  
  %.o:    ../common/%.c
          $(COMPILE.c) -o $@ $<
--- 51,74 ----
  $(INTEL_BLD)ROOTOBJECTS64 += $(ROOTLIB64)/gcrt1.o
  
  ASFLAGS +=      -P -D__STDC__ -D_ASM -DPIC $(AS_PICFLAGS)
  
  values-xpg6.o := CPPFLAGS += -I$(SRC)/lib/libc/inc
  $(COMMON_CRT) $(VALUES) := CFLAGS += $(C_PICFLAGS)
  $(COMMON_CRT) $(VALUES) := CFLAGS64 += $(C_PICFLAGS64)
  
+ # intentional double exit
+ SMOFF += unreachable
+ 
  .KEEP_STATE:
  
  all:    $(OBJECTS)
  
  clean clobber:
          $(RM) $(OBJECTS)
  
  
  $(CRT1): $(COMMON_CRT) $(MACH_CRT)
          $(LD) -r $(MACH_CRT) $(COMMON_CRT) -o $(CRT1)
  
  %.o:    ../common/%.c
          $(COMPILE.c) -o $@ $<