| 1 | # -*-perl-*-
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| 2 |
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| 3 | $description = "Test proper handling of SHELL.";
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| 4 |
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| 5 | # Find the default value when SHELL is not set. On UNIX it will be /bin/sh,
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| 6 | # but on other platforms who knows?
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| 7 | resetENV();
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| 8 | delete $ENV{SHELL};
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| 9 | $mshell = `echo 'all:;\@echo \$(SHELL)' | $make_path -f-`;
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| 10 | chop $mshell;
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| 11 |
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| 12 | # According to POSIX, the value of SHELL in the environment has no impact on
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| 13 | # the value in the makefile.
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| 14 | # Note %extraENV takes precedence over the default value for the shell.
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| 15 |
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| 16 | $extraENV{SHELL} = '/dev/null';
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| 17 | run_make_test('all:;@echo "$(SHELL)"', '', $mshell);
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| 18 |
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| 19 | # According to POSIX, any value of SHELL set in the makefile should _NOT_ be
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| 20 | # exported to the subshell! I wanted to set SHELL to be $^X (perl) in the
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| 21 | # makefile, but make runs $(SHELL) -c 'commandline' and that doesn't work at
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| 22 | # all when $(SHELL) is perl :-/. So, we just add an extra initial /./ which
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| 23 | # works well on UNIX and seems to work OK on at least some non-UNIX systems.
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| 24 |
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| 25 | $extraENV{SHELL} = $mshell;
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| 26 |
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| 27 | run_make_test("SHELL := /./$mshell\n".'
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| 28 | all:;@echo "$(SHELL) $$SHELL"
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| 29 | ', '', "/./$mshell $mshell");
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| 30 |
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| 31 | # As a GNU make extension, if make's SHELL variable is explicitly exported,
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| 32 | # then we really _DO_ export it.
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| 33 |
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| 34 | $extraENV{SHELL} = $mshell;
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| 35 |
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| 36 | run_make_test("export SHELL := /./$mshell\n".'
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| 37 | all:;@echo "$(SHELL) $$SHELL"
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| 38 | ', '', "/./$mshell /./$mshell");
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| 39 |
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| 40 |
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| 41 | # Test out setting of SHELL, both exported and not, as a target-specific
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| 42 | # variable.
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| 43 |
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| 44 | $extraENV{SHELL} = $mshell;
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| 45 |
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| 46 | run_make_test("all: SHELL := /./$mshell\n".'
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| 47 | all:;@echo "$(SHELL) $$SHELL"
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| 48 | ', '', "/./$mshell $mshell");
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| 49 |
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| 50 | $extraENV{SHELL} = $mshell;
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| 51 |
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| 52 | run_make_test("
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| 53 | SHELL := /././$mshell
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| 54 | one: two
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| 55 | two: export SHELL := /./$mshell\n".'
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| 56 | one two:;@echo "$@: $(SHELL) $$SHELL"
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| 57 | ', '', "two: /./$mshell /./$mshell\none: /././$mshell $mshell\n");
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| 58 |
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| 59 | # Test .SHELLFLAGS
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| 60 |
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| 61 | # We don't know the output here: on Solaris for example, every line printed
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| 62 | # by the shell in -x mode has a trailing space (!!)
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| 63 | my $script = 'true; true';
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| 64 | my $flags = '-xc';
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| 65 | my $out = `/bin/sh $flags '$script' 2>&1`;
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| 66 |
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| 67 | run_make_test(qq!
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| 68 | .SHELLFLAGS = $flags
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| 69 | all: ; \@$script
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| 70 | !,
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| 71 | '', $out);
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| 72 |
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| 73 | # We can't just use "false" because on different systems it provides a
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| 74 | # different exit code--once again Solaris: false exits with 255 not 1
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| 75 | $script = 'true; false; true';
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| 76 | $flags = '-xec';
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| 77 | $out = `/bin/sh $flags '$script' 2>&1`;
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| 78 | my $err = $? >> 8;
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| 79 |
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| 80 | run_make_test(qq!
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| 81 | .SHELLFLAGS = $flags
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| 82 | all: ; \@$script
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| 83 | !,
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| 84 | '', "$out#MAKE#: *** [all] Error $err\n", 512);
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| 85 |
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| 86 | 1;
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