GNU make v3.79.1 bug with echo-suppressed commands in defined variables

[Justin Nicolaides]

I’ve run into a problem using ‘@’ to suppress echoing for commands in a “define” variable. I am using make version 3.79.1 from the Cygwin package on Windows XP SP1. The problem is that once make has executed a line with an @, echoing is suppressed for all subsequent commands, regardless of whether they have an @ or not.

 

Here is an example makefile to replicate the problem:

 

define CMD

true 1 $@

true 2 $@

@true 3 $@

endef

 

all: 1.blah 2.blah

 

%.blah:

        $(CMD)

 

Here is the output:

 

99 ~/m>cmake -v

GNU Make version 3.79.1, by Richard Stallman and Roland McGrath.

Built for i686-pc-cygwin

Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000

        Free Software Foundation, Inc.

This is free software; see the source for copying conditions.

There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A

PARTICULAR PURPOSE.

 

Report bugs to <address@hidden>.

 

100 ~/m>cmake -f b

true 1 1.blah

true 2 1.blah

101 ~/m>

 

If I run version 3.74 (from Wind River Systems’ Tornado environment), I get the expected result:

 

101 ~/m>make -v

GNU Make version 3.74 (vpath+), by Richard Stallman and Roland McGrath.

Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 95 Free Software Foundation, Inc

.

This is free software; see the source for copying conditions.

There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A

PARTICULAR PURPOSE.

 

102 ~/m>make -f b

true 1 1.blah

true 2 1.blah

true 1 2.blah

true 2 2.blah

103 ~/m>

 

-- Justin