[bug #36881] Sample code for $(eval) is incorrect and fails.

[John Joganic]

URL:
  <http://savannah.gnu.org/bugs/?36881>

                 Summary: Sample code for $(eval) is incorrect and fails.
                 Project: make
            Submitted by: jjoganic
            Submitted on: Thu 19 Jul 2012 12:38:40 AM GMT
                Severity: 3 - Normal
              Item Group: Documentation
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 3.81
        Operating System: None
           Fixed Release: None
           Triage Status: None

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Details:

The sample code reads:

define PROGRAM_template =
  $(1): $$($(1)_OBJS) $$($(1)_LIBS:%=-l%)
  ALL_OBJS   += $$($(1)_OBJS)
endef

 $(foreach prog,$(PROGRAMS),$(eval $(call PROGRAM_template,$(prog))))

However, the '=' following PROGRAM_template causes the definition to have no
effect.  

In short, any one using this code as an example to create templates will find
that no parameterized rules are actually generated.




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