Re: sort dynamic linking overhead

[Pádraig Brady]

On 27/02/2024 21:36, Bruno Haible wrote:
> Pádraig Brady wrote:
> > > Does this work for all the various names of libcrypto in various distros?
> > >
> > > Debian 12       libcrypto.so.3
> > > Ubuntu 22.04    libcrypto.so.1.1 libcrypto.so.3
> > > Slackware 15    libcrypto.so.1.1
> > > openSUSE 15.5   libcrypto.so.1.1
> > > CentOS Stream 9 libcrypto.so.3
> > > Guix 1.4        libcrypto.so.1.1
> > > Alpine 3.19     libcrypto.so.3
> > > FreeBSD 14.0    libcrypto.so.38
> > > NetBSD 9.3      libcrypto.so.14
> > > OpenBSD 7.4     libcrypto.so.52.0
> >
> > I only tested with libcrypto.so.3, but it should match all of the above.
> > It matches libcrypto.so.[.0-9]*
>
> Here are my testing results (with the LIB_DL fix):
>
> * On some machines, I had to install the packages with the <openssl/*>
>    header files first:
>
>    - Debian 12:
>      # apt install libssl-dev
>    - openSUSE 15.5:
>      YaST software > install libopenssl-3-devel
>    - Slackware 15:
>      Download and unpack the openssl-1.1.1w binary packages
>    - Alpine Linux 3.19:
>      # apk add openssl openssl-dev
>
> * On some platforms, the configure test gave
>
>       checking whether openssl is GPL compatible... no
>
>    due to the <openssl/*> header files being absent:
>
>      - Guix 1.4
>      - macOS 12.5
>      - Cygwin 2.9.0
>
> * On some platforms, the configure test gave
>
>       checking whether openssl is GPL compatible... no
>
>    because the openssl version is not >= 3.
>
>      - Slackware 15 (has libcrypto.so.1.1)
>      - NetBSD 9.3 (has libcrypto.so.14)
>      - OpenBSD 7.4 (has libcrypto.so.52.0)
>      - Solaris 11.4 (has libcrypto.so.1.0.0)
>
> * On these platforms, the configure test gave
>
>       checking whether openssl is GPL compatible... yes
>
>    and LIBCRYPTO_SONAME got defined.
>
>      - Debian 12
>      - Ubuntu 22.04
>      - openSUSE 15.5
>      - CentOS Stream 9
>      - Alpine Linux 3.19
>      - FreeBSD 14.0
>      - Android
>
>    The value of LIBCRYPTO_SONAME is
>      "libcrypto.so.30" on Android,
>      "libcrypto.so.3" on the other platforms.

Thanks for all the testing / info.

FTR some platforms may deem openssl < 3 as GPL compat,
and they can `configure --with-openssl=auto`,
in which case this optimization would be enabled.

thanks!
Pádraig