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      1 #                                                                    -*-perl-*-
      2 $description = "Test the call function.\n";
      3 
      4 $details = "Try various uses of call and ensure they all give the correct
      5 results.\n";
      6 
      7 open(MAKEFILE, "> $makefile");
      8 
      9 # The Contents of the MAKEFILE ...
     10 
     11 print MAKEFILE <<'EOMAKE';
     12 # Simple, just reverse two things
     13 #
     14 reverse = $2 $1
     15 
     16 # A complex `map' function, using recursive `call'.
     17 #
     18 map = $(foreach a,$2,$(call $1,$a))
     19 
     20 # Test using a builtin; this is silly as it's simpler to do without call
     21 #
     22 my-notdir = $(call notdir,$(1))
     23 
     24 # Test using non-expanded builtins
     25 #
     26 my-foreach = $(foreach $(1),$(2),$(3))
     27 my-if      = $(if $(1),$(2),$(3))
     28 
     29 # Test recursive invocations of call with different arguments
     30 #
     31 one = $(1) $(2) $(3)
     32 two = $(call one,$(1),foo,$(2))
     33 
     34 # Test recursion on the user-defined function.  As a special case make
     35 # won't error due to this.
     36 # Implement transitive closure using $(call ...)
     37 #
     38 DEP_foo = bar baz quux
     39 DEP_baz = quux blarp
     40 rest = $(wordlist 2,$(words ${1}),${1})
     41 tclose = $(if $1,$(firstword $1) \
     42 		$(call tclose,$(sort ${DEP_$(firstword $1)} $(call rest,$1))))
     43 
     44 all: ; @echo '$(call reverse,bar,foo)'; \
     45         echo '$(call map,origin,MAKE reverse map)'; \
     46         echo '$(call my-notdir,a/b   c/d      e/f)'; \
     47         echo '$(call my-foreach)'; \
     48         echo '$(call my-foreach,a,,,)'; \
     49         echo '$(call my-if,a,b,c)'; \
     50         echo '$(call two,bar,baz)'; \
     51 	echo '$(call tclose,foo)'
     52 
     53 
     54 
     55 EOMAKE
     56 
     57 # These won't work until/unless PR/1527 is resolved.
     58 #        echo '$(call my-foreach,a,x y z,$(a)$(a))'; \
     59 #        echo '$(call my-if,,$(warning don't print this),ok)'
     60 #
     61 # $answer = "xx yy zz\nok\n";
     62 
     63 # END of Contents of MAKEFILE
     64 
     65 close(MAKEFILE);
     66 
     67 &run_make_with_options($makefile, "", &get_logfile);
     68 $answer = "foo bar\ndefault file file\nb d f\n\n\nb\nbar foo baz\nfoo bar baz blarp quux \n";
     69 &compare_output($answer, &get_logfile(1));
     70 
     71 
     72 # TEST eclipsing of arguments when invoking sub-calls
     73 
     74 $makefile2 = &get_tmpfile;
     75 
     76 open(MAKEFILE,"> $makefile2");
     77 
     78 print MAKEFILE <<'EOF';
     79 
     80 all = $1 $2 $3 $4 $5 $6 $7 $8 $9
     81 
     82 level1 = $(call all,$1,$2,$3,$4,$5)
     83 level2 = $(call level1,$1,$2,$3)
     84 level3 = $(call level2,$1,$2,$3,$4,$5)
     85 
     86 all:
     87 	@echo $(call all,1,2,3,4,5,6,7,8,9,10,11)
     88 	@echo $(call level1,1,2,3,4,5,6,7,8)
     89 	@echo $(call level2,1,2,3,4,5,6,7,8)
     90 	@echo $(call level3,1,2,3,4,5,6,7,8)
     91 EOF
     92 
     93 close(MAKEFILE);
     94 
     95 &run_make_with_options($makefile2, "", &get_logfile);
     96 $answer = "1 2 3 4 5 6 7 8 9\n1 2 3 4 5\n1 2 3\n1 2 3\n";
     97 &compare_output($answer,&get_logfile(1));
     98 
     99 1;
    100