There could be a vsipreload script that sets the environment variable
and then execs its parameters similar to how eatmydata [1] works.
[1] https://manpages.debian.org/testing/eatmydata/eatmydata.1.en.html
On 8/7/19 4:10 PM, Even Rouault wrote:
On mercredi 7 août 2019 20:58:54 CEST Joe Lee wrote:
Hi, Even!
Is there a configure flag for enabling it by default without relying on
LD_PRELOAD=...? (e.g., --with-vsipreload)
No,
- this needs to be loaded with LD_PRELOAD because it overrides very common
symbols of the libc (fopen, etc..) and thus it needs to be loaded in a special
way so that the symbols of vsipreload.so are actually used and not the libc
ones.
- it is better to keep it in a separate library, because I can easily imagine
that having fopen() and the like re-defined in libgdal.so could cause serious
mess.
So all in all, this is a convenient trick, but this remains an experimental &
somewhat dangerous hack to be used in last resort.
Even
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