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# -*-perl-*-
$description = "Test the origin function.";
$details = "This is a test of the origin function in gnu make.
This function will report on where a variable was
defined per the following list:
'undefined' never defined
'default' default definition
'environment' environment var without -e
'environment override' environment var with -e
'file' defined in makefile
'command line' defined on the command line
'override' defined by override in makefile
'automatic' Automatic variable\n";
# On WIN32 systems, HOME is meaningless. SystemRoot should be defined though.
# With DJGPP, HOME is not guaranteed to be defined. Use DJDIR instead.
#
$homevar = (($osname =~ /Windows/i)
? "SystemRoot"
: (($osname =~ /DOS/i) ? "DJDIR" : "HOME"));
open(MAKEFILE,"> $makefile");
print MAKEFILE <<EOF;
foo := bletch garf
auto_var = udef CC $homevar MAKE foo CFLAGS WHITE \@
av = \$(foreach var, \$(auto_var), \$(origin \$(var)) )
override WHITE := BLACK
all: auto
\t\@echo \$(origin undefined)
\t\@echo \$(origin CC)
\t\@echo \$(origin $homevar)
\t\@echo \$(origin MAKE)
\t\@echo \$(origin foo)
\t\@echo \$(origin CFLAGS)
\t\@echo \$(origin WHITE)
\t\@echo \$(origin \@)
auto :
\t\@echo \$(av)
EOF
close(MAKEFILE);
&run_make_with_options($makefile,
"-e WHITE=WHITE CFLAGS=",
&get_logfile);
# Create the answer to what should be produced by this Makefile
$answer = "undefined default environment default file command line override automatic
undefined
default
environment
default
file
command line
override
automatic\n";
&compare_output($answer,&get_logfile(1));
1;
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