Em Thu, Sep 12, 2013 at 03:43:41PM -0300, Arnaldo Carvalho de Melo escreveu:
> But if I do it as a normal user and then try installing as root... it
> behaves like you described, duh :-\
>
> Because of this:
>
> * new build flags or prefix
>
> Will check...
This is the cause:
### Detect prefix changes
TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):\
$(bindir_SQ):$(perfexecdir_SQ):$(template_dir_SQ):$(prefix_SQ)
$(OUTPUT)PERF-CFLAGS: .FORCE-PERF-CFLAGS
@FLAGS='$(TRACK_CFLAGS)'; \
if test x"$$FLAGS" != x"`cat $(OUTPUT)PERF-CFLAGS 2>/dev/null`" ;
then \
echo 1>&2 " * new build flags or prefix"; \
echo "$$FLAGS" >$(OUTPUT)PERF-CFLAGS; \
fi
That "prefix" thing, i.e.:
$(bindir_SQ):$(perfexecdir_SQ):$(template_dir_SQ):$(prefix_SQ)
As user it is:
/home/acme/bin:libexec/perf-core:share/perf-core/templates:/home/acme
while as root it becomes:
/root/bin:libexec/perf-core:share/perf-core/templates:/root
And that causes the whole thing to be rebuilt when going from 'make' as normal
user to 'make install' as root.
All the other things in that TRACK_CFLAGS part is equal.
We probably got all this from the 'git' makefile, checking how it is done
there these days...
- Arnaldo
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