1 # -*-perl-*- 2 3 $description = "Test the origin function."; 4 5 $details = "This is a test of the origin function in gnu make. 6 This function will report on where a variable was 7 defined per the following list: 8 9 'undefined' never defined 10 'default' default definition 11 'environment' environment var without -e 12 'environment override' environment var with -e 13 'file' defined in makefile 14 'command line' defined on the command line 15 'override' defined by override in makefile 16 'automatic' Automatic variable\n"; 17 18 # Set an environment variable 19 $extraENV{MAKETEST} = 1; 20 21 run_make_test(' 22 foo := bletch garf 23 auto_var = undefined CC MAKETEST MAKE foo CFLAGS WHITE @ 24 av = $(foreach var, $(auto_var), $(origin $(var)) ) 25 override WHITE := BLACK 26 all: auto 27 @echo $(origin undefined) 28 @echo $(origin CC) 29 @echo $(origin MAKETEST) 30 @echo $(origin MAKE) 31 @echo $(origin foo) 32 @echo $(origin CFLAGS) 33 @echo $(origin WHITE) 34 @echo $(origin @) 35 auto : 36 @echo $(av)', 37 '-e WHITE=WHITE CFLAGS=', 38 'undefined default environment default file command line override automatic 39 undefined 40 default 41 environment 42 default 43 file 44 command line 45 override 46 automatic'); 47 48 # Reset an environment variable 49 delete $extraENV{MAKETEST}; 50 51 1; 52
