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49 lines
1.5 KiB
Perl
49 lines
1.5 KiB
Perl
# -*-perl-*-
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$description = "Test proper handling of SHELL.";
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# Find the default value when SHELL is not set. On UNIX it will be /bin/sh,
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# but on other platforms who knows?
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$oshell = $ENV{SHELL};
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delete $ENV{SHELL};
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$mshell = `echo 'all:;\@echo \$(SHELL)' | $make_path -f-`;
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chop $mshell;
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# According to POSIX, the value of SHELL in the environment has no impact on
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# the value in the makefile.
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$ENV{SHELL} = '/dev/null';
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run_make_test('all:;@echo "$(SHELL)"', '', $mshell);
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# According to POSIX, any value of SHELL set in the makefile should _NOT_ be
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# exported to the subshell! I wanted to set SHELL to be $^X (perl) in the
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# makefile, but make runs $(SHELL) -c 'commandline' and that doesn't work at
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# all when $(SHELL) is perl :-/. So, we just add an extra initial / and hope
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# for the best on non-UNIX platforms :-/.
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$ENV{SHELL} = $mshell;
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run_make_test("SHELL := /$mshell\n".'
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all:;@echo "$(SHELL) $$SHELL"
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', '', "/$mshell $mshell");
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# As a GNU make extension, if make's SHELL variable is explicitly exported,
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# then we really _DO_ export it.
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run_make_test("export SHELL := /$mshell\n".'
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all:;@echo "$(SHELL) $$SHELL"
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', '', "/$mshell /$mshell");
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# Test out setting of SHELL, both exported and not, as a target-specific
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# variable.
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run_make_test("all: SHELL := /$mshell\n".'
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all:;@echo "$(SHELL) $$SHELL"
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', '', "/$mshell $mshell");
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run_make_test("all: export SHELL := /$mshell\n".'
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all:;@echo "$(SHELL) $$SHELL"
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', '', "/$mshell $mshell");
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1;
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