LPCXpresso IDE中的主题 Re: Re-compile a file eachRe-compile file even when not changed

Re-compile a file eachRe-compile file even when not changed

lpcware — Thu, 16 Jun 2016 00:22:20 GMT

Content originally posted in LPCWare by dtesystems on Fri Mar 18 05:02:29 MST 2016
Hi,

I'm using 2 source files (date_time.c/date_time.h) in which a genereate the last re-compilation date and time of my project. This recompile date is then available for the microcontroller for further use.

Problem now is that this file doesn't re-compile as long as it's content isn't changed are a clean build is executed.

Is there a way to mark these files so they will re-compile on each build or some compiler directive I can use?

Thanks!

Tom

Re: Re-compile a file eachRe-compile file even when not changed

lpcware — Thu, 16 Jun 2016 00:22:21 GMT

Content originally posted in LPCWare by miccio on Fri Mar 18 05:14:26 MST 2016
Hey Tom,

I had a similar requirement some time ago, which I solved by adding the following to Project Properties -> C/C++ Build -> Settings -> Build Steps -> Pre-build steps command:

touch ../date_time.c; touch ../date_time.h

Citing Wikipedia, touch is a standard Unix command-line interface program which is used to update the access date and / or modification date of a file or directory.
In its default usage, it is the equivalent of creating or opening a file and saving it without any change to the file contents.

However, mind that this only works on Linux.
Some POSIX-like environment like Cygwin or MinGW may offer such command, or there may be a similar built-in one.

Good luck

Re: Re-compile a file eachRe-compile file even when not changed

lpcware — Thu, 16 Jun 2016 00:22:22 GMT

Content originally posted in LPCWare by dtesystems on Fri Mar 18 07:56:29 MST 2016
Hi Miccio,

That's a step in the good direction. I'm going to look for the Windows equivalent of touch.

Thanks!

Tom

Re: Re-compile a file eachRe-compile file even when not changed

lpcware — Thu, 16 Jun 2016 00:22:22 GMT

Content originally posted in LPCWare by miccio on Fri Mar 18 08:22:06 MST 2016
according to this, the way to go seems to be

copy /b filename +,,

Hope it helps

Re: Re-compile a file eachRe-compile file even when not changed

lpcware — Thu, 16 Jun 2016 00:22:23 GMT

Content originally posted in LPCWare by vtw.433e on Fri Mar 18 08:26:38 MST 2016
LPCXpressop contains a Windows version of touch. So, just use

touch filename.c

Re: Re-compile a file eachRe-compile file even when not changed

lpcware — Sun, 19 Jun 2016 01:05:43 GMT

bump