#6 Restore missing parts from aclocal.m4

[orbea]

This patch is applied on top of the other two patches.

https://sourceforge.net/p/libsnet/patches/4/
https://sourceforge.net/p/libsnet/patches/5/

This patch finishes what was started with the earlier two builds. The legacy osx macros are totally broken and probably would need to be written from scratch. Since I don't use apple products someone else will need to work on that assuming anyone cares. For now lets just remove it.

• Uses pkg-config for libsasl, libssl and zlib
• Restores CHECK_PROFILED
• Removes broken legacy osx macros

The legacy CHECK_SASL, CHECK_SSL and CHECK_ZLIB macros have problems with adding hardcoded -L linker directories to the LDFLAGS which is inappropriate on modern systems. Using pkg-config avoids this problem.

When setting LIBTOOL in the environment to slibtool the profiled libraries will fail to build because of the ../ prepended to the $(LIBTOOL) variable. This was expoed when building radmind which includes libsnet as a submodule.

[orbea]

Apologies. I had to update the patch by adding --tag=CC to the $(LIBTOOL) commands for GNU libtool. Not sure why it worked without that before, but its not important...

[orbea]

Gentoo bug report for radmind where this was exposed.

https://bugs.gentoo.org/779664

[orbea]

Third version of the patch.

After removing the hardcoded value for $(LIBTOOL) the profiled libraries needed to be worked around to not change directories when being built.

[orbea]

I don't think I can close this, but see https://sourceforge.net/p/libsnet/patches/7/ instead.