Hi Brandon,
By default, gnu make will always print the command to execute, as well
as its output. Typically, the command to be executed is muted by
prefixing an "@". For example:
@echo "Built target PerlLib"
As for all of the other commands, apparently they used this trick:
# Suppress display of executed commands.
$(VERBOSE).SILENT:
where .SILENT is an actual command to treat every command as if it had
an "@" before it.
If VERBOSE is not defined, the .SILENT executes normally. Otherwise
setting it to 1 results in a target being created named
1.SILENT
which is a phony target and the .SILENT directive is never executed.
Necessarily, all of the cmake commands must suppress much of their
output, unless the environment variable VERBOSE is defined.
Regards,
Juan
On Mon, 30 Jul 2007, Brandon Van Every wrote:
On 7/30/07, Bill Hoffman <[EMAIL PROTECTED]> wrote:
Brandon Van Every wrote:
On 7/30/07, Juan Sanchez <[EMAIL PROTECTED]> wrote:
I didn't think to look on the make man page, since almost every gnu make
system I dealt with had the verbose information by default.
Doing a "man make" reveals nothing about "VERBOSE=1" since that is
specific to cmake,
No I'm googling and it's not specific to CMake. Damned if I can find
documentation on it though.
Although other systems may use make VERBOSE=1, this is certainly a CMake
feature that was
put into the makefiles by the CMake developers....
Shows my ignorance of Make then. Setting VERBOSE=1 does appear to be
a common convention at any rate. Was there some previous era where
almost everything in computerdom was done by passing environment
variables, and people didn't use command line flags so much? Maybe
it's an anachronism, and some ancient manpage somewhere *does*
document a Make that expects to be controlled that way.
Cheers,
Brandon Van Every
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Juan Sanchez
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512-602-4395
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