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Subject: [Bug 217613] FreeBSD make -- local variable $(.PREFIX) does not
 strip preceding directory components
Date: Fri, 10 Mar 2017 06:31:04 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217613

--- Comment #6 from Simon J. Gerraty <sjg@FreeBSD.org> ---
The handling of .PREFIX et al, is rather contorted.
Despite what the man page says, the trimming of dirs etc does not apply to
those explicitly specified.

For example :

% cat tmf
.SUFFIXES: .ext .c

.PATH: /tmp

target.ext: $*.c
        @echo '@=3D$@ *=3D$* >=3D$>'
        @echo '.TARGET=3D${.TARGET} .PREFIX=3D${.PREFIX} .ALLSRC=3D${.ALLSR=
C}'

all: target.ext
%
% mkdir obj
% touch target.ext
% touch target.c
% bmake -r -f tmf
@=3D/tmp/target.ext *=3Dtarget >=3D/tmp/target.c
.TARGET=3D/tmp/target.ext .PREFIX=3Dtarget .ALLSRC=3D/tmp/target.c
%

both target.c and target.ext were found via .PATH
and we can see that .PREFIX (*) was set to the basename without extension as
documented.  But if you make that an explicit /tmp/target.ext:
It does not.

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