[Buildroot] [PATCH 01/15] package/pkg-generic.mk: detect files overwritten in TARGET_DIR and HOST_DIR

On 22/06/2021 11:30, Thomas Petazzoni wrote:

On Tue, 22 Jun 2021 09:40:52 +0200
Herve Codina [off-list ref] wrote:

quoted

    Compared to the first version, this patch has an improved commit message and
    generates the md5sum snapshot using
      'find -L $(1) -type f -print0 | xargs -0 -r md5sum > $($(PKG)_DIR)/.files$(2).md5;'

But is this better ? Due to not cd-ing into the directory, you will
have full absolute paths in the .md5 file, and adding LC_ALL=C is quite
customary too. Ditto for using | xargs instead of -exec.

xargs will run only start one md5sum process if the command line size 
permits it, whereas "-exec md5sum {} ;" will start one md5sum per file.

An alternative is "-exec md5sum {} +", which is essentially xargs-like.