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Re: makes which break with `silent-rules'
From: |
Bruno Haible |
Subject: |
Re: makes which break with `silent-rules' |
Date: |
Sun, 24 May 2009 13:12:02 +0200 |
User-agent: |
KMail/1.9.9 |
> - The `silent-rules' option enables Linux kernel-style silent build output.
> This option requires the widely supported but non-POSIX `make' feature
> of recursive variable expansion,
We are talking about constructs like this:
====== Makefile ======
all :
echo $(XY_V)
XY_V = $(XY_$(V))
XY_0 = silent
XY_1 = verbose
XY_ = unknown
======================
I think this is supported by POSIX. POSIX [1] says: "Macros can appear anywhere
in the makefile.".
> Is anyone aware of specific vendor make programs which fail with
> automake 1.11's new `silent-rules' option?
The 'make' programs from Solaris 2.4 (1994) and from AIX 4.3, IRIX 6.5,
HP-UX 11.00, OSF/1 4.0 all support this feature.
Bruno
[1] http://www.opengroup.org/onlinepubs/9699919799/utilities/make.html