1*69606e3fSchristos# -*-perl-*- 2*69606e3fSchristos 3*69606e3fSchristos$description = "Test proper handling of SHELL."; 4*69606e3fSchristos 5*69606e3fSchristos# Find the default value when SHELL is not set. On UNIX it will be /bin/sh, 6*69606e3fSchristos# but on other platforms who knows? 7*69606e3fSchristosresetENV(); 8*69606e3fSchristosdelete $ENV{SHELL}; 9*69606e3fSchristos$mshell = `echo 'all:;\@echo \$(SHELL)' | $make_path -f-`; 10*69606e3fSchristoschop $mshell; 11*69606e3fSchristos 12*69606e3fSchristos# According to POSIX, the value of SHELL in the environment has no impact on 13*69606e3fSchristos# the value in the makefile. 14*69606e3fSchristos# Note %extraENV takes precedence over the default value for the shell. 15*69606e3fSchristos 16*69606e3fSchristos$extraENV{SHELL} = '/dev/null'; 17*69606e3fSchristosrun_make_test('all:;@echo "$(SHELL)"', '', $mshell); 18*69606e3fSchristos 19*69606e3fSchristos# According to POSIX, any value of SHELL set in the makefile should _NOT_ be 20*69606e3fSchristos# exported to the subshell! I wanted to set SHELL to be $^X (perl) in the 21*69606e3fSchristos# makefile, but make runs $(SHELL) -c 'commandline' and that doesn't work at 22*69606e3fSchristos# all when $(SHELL) is perl :-/. So, we just add an extra initial /./ which 23*69606e3fSchristos# works well on UNIX and seems to work OK on at least some non-UNIX systems. 24*69606e3fSchristos 25*69606e3fSchristos$extraENV{SHELL} = $mshell; 26*69606e3fSchristos 27*69606e3fSchristosrun_make_test("SHELL := /./$mshell\n".' 28*69606e3fSchristosall:;@echo "$(SHELL) $$SHELL" 29*69606e3fSchristos', '', "/./$mshell $mshell"); 30*69606e3fSchristos 31*69606e3fSchristos# As a GNU make extension, if make's SHELL variable is explicitly exported, 32*69606e3fSchristos# then we really _DO_ export it. 33*69606e3fSchristos 34*69606e3fSchristos$extraENV{SHELL} = $mshell; 35*69606e3fSchristos 36*69606e3fSchristosrun_make_test("export SHELL := /./$mshell\n".' 37*69606e3fSchristosall:;@echo "$(SHELL) $$SHELL" 38*69606e3fSchristos', '', "/./$mshell /./$mshell"); 39*69606e3fSchristos 40*69606e3fSchristos 41*69606e3fSchristos# Test out setting of SHELL, both exported and not, as a target-specific 42*69606e3fSchristos# variable. 43*69606e3fSchristos 44*69606e3fSchristos$extraENV{SHELL} = $mshell; 45*69606e3fSchristos 46*69606e3fSchristosrun_make_test("all: SHELL := /./$mshell\n".' 47*69606e3fSchristosall:;@echo "$(SHELL) $$SHELL" 48*69606e3fSchristos', '', "/./$mshell $mshell"); 49*69606e3fSchristos 50*69606e3fSchristos$extraENV{SHELL} = $mshell; 51*69606e3fSchristos 52*69606e3fSchristosrun_make_test("all: export SHELL := /./$mshell\n".' 53*69606e3fSchristosall:;@echo "$(SHELL) $$SHELL" 54*69606e3fSchristos', '', "/./$mshell $mshell"); 55*69606e3fSchristos 56*69606e3fSchristos1; 57