[Scons-users] Doing a build time Glob()

[Dirk Bächle]

Pico,

On 29.11.2013 15:52, Pico Geyer wrote:

> On Fri, Nov 29, 2013 at 2:10 AM, Bill Deegan 

> <bill at baddogconsulting.com <mailto:bill at baddogconsulting.com>> wrote:

>

>     Marc,

>

>     In your example A install a bunch,etc.. make will not know about

>     the dependencies until you run make again.

>

>

> Hi Bill,

>

> I don't know if this is exactly what Marc was referring to, but I'd 

> like to provide my own example of how Make does not require you to 

> specify all the dependencies explicitly.

> [...]

>

> Now when we run make, it manages to copy and install the headers 

> without actually knowing in advance what header files we were going to 

> put in build_dir:

> % make

> ./genhdrs.py

> mkdir -p inc

> cp build_dir/*.h inc/

> gcc -Iinc -o test test.c

>


and when you start "make" again, it repeats all the steps...even though 
the C source file and the genhdrs.py script didn't change at all. So, 
why using a build system at all, when a simple (Python) script would do 
fine? ;)

Best regards,

Dirk

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