Mohammad Akhlaghi wrote:
> if a program doesn't use anything from a library,
> what are the downsides (performance maybe?) to link it with that library
> anyway?
Startup time of the program is increased. See [1], chapter 1, for the general
theory.
By how much is it increased? You have to measur
On 5/26/19 12:52 AM, Bruno Haible wrote:
Additionally:
Automake offers you a different *_LDFLAGS variable for every program. [1][2]
This way, you can link some of your programs against a specific library,
without forcing you to link _all_ the programs against it.
It would be good to link each pr
Mohammad Akhlaghi wrote:
> > How can I get the `-L' part of `LTLIB' into LDFLAGS?
>
> The problem is fixed now. As suggested in the documentation, I just
> appended the necessary `LIB' entries to `LDADD' and included
> `LDADD' to the `program_LDADD' (of `Makefile.am').
Additionally:
Automake of
On 5/19/19 10:15 PM, Mohammad Akhlaghi wrote:
How can I get the `-L' part of `LTLIB' into LDFLAGS?
The problem is fixed now. As suggested in the documentation, I just
appended the necessary `LIB' entries to `LDADD' and included
`LDADD' to the `program_LDADD' (of `Makefile.am').
It now works
On 5/19/19 12:14 AM, Bruno Haible wrote:
Here's the relevant documentation:
https://www.gnu.org/software/gnulib/manual/html_node/Searching-for-Libraries.html#Locating-Libraries
Thanks, I am busy testing `AC_LIB_LINKFLAGS' now. The fact that it
modifies CPPFLAGS and adds `rpath' when necessary
Mohammad Akhlaghi wrote:
> > It is be possible to search libraries using AC_RUN_IFELSE instead of
> > AC_LINK_IFELSE, and add -rpath options as needed. The AC_LIB_LINKFLAGS
> > macro from gnulib does this. It appears that you used the stock Autoconf
> > macro, which does not do this.
>
> You are r
On 5/18/19 1:58 AM, Bruno Haible wrote:
It is be possible to search libraries using AC_RUN_IFELSE instead of
AC_LINK_IFELSE, and add -rpath options as needed. The AC_LIB_LINKFLAGS
macro from gnulib does this. It appears that you used the stock Autoconf
macro, which does not do this.
You are rig
Mohammad Akhlaghi wrote:
> To avoid similar situations in the future, it may be good to add a check
> in the `configure' script so if `getgroups' fails, but the system is a
> GNU system, the configure script crashes with a warning (after all
> `make' will crash, but a crash in `configure' is mor
Hi Bruno,
Thank you very much for the great explanation and solution. The
elaborations really made things clear and were very useful. We applied
the second one (setting `rpath'), and the problem was solved.
To avoid similar situations in the future, it may be good to add a check
in the `conf
Hi,
Mohammad Akhlaghi wrote:
> Recently in a build of Gnuastro 0.9 (which uses Gnulib
> `v0.1-2539-gd6af24178'), we confronted a crash during the build of
> Gnulib's `getgroups.c' (error summary is in P.S.).
A log of the command "make" would be more useful than a log of the command
"make -j8",
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