Hi, On Sat, Sep 30, 2017 at 02:08:19PM -0400, logca...@fastmail.net wrote: > Here's the output from the locate command: > > /usr/lib/arm-linux-gnueabihf/liblz4.a > /usr/lib/arm-linux-gnueabihf/liblz4.so > /usr/lib/arm-linux-gnueabihf/liblz4.so.1 > /usr/lib/arm-linux-gnueabihf/liblz4.so.1.3.0 > /usr/lib/arm-linux-gnueabihf/pkgconfig/liblz4.pc > /usr/local/lib/liblz4.a > /usr/local/lib/liblz4.so > /usr/local/lib/liblz4.so.1 > /usr/local/lib/liblz4.so.1.8.0 > /usr/local/lib/pkgconfig/liblz4.pc
This is likely the issue here. You have a very old version in the
system linking path (1.3.0), and a recent version in /usr/local/lib/ - but
to use that, the compiler would need a "-L/usr/local/lib" directive.
Unfortunately, even if our configure script had checked for the
LZ4_compress_default() function, it might have still bombed later, as
"which -I and -L directives end up in the final compile/link call"
is not always those that are used for a certain test.
> Since I could not locate LZ4_compress_default() in the openvpn source, I
e pulled lz4.c from the lz4 source tree, snipped out that function from
> the file, and then inserted it into comp_lz4.c. This does not work
> because there are many dependencies in this function.
>
> So I made a horrible hack and simply included lz4.c in comp_lz4.c. This
> solved the dependencies, but is most likely the wrong way to solve this
> problem :-)
Well, it is :-) - the "best" way might have been to explicitely tell
configure where to find the new library
./configure LZ4_CFLAGS=-I/usr/local/include LZ4_LIBS="-L/usr/local/lib -llz4"
(the quote "" characters are needed due to the "-l").
Alternatively, rename the system "lz4.h" before running configure, in
which case OpenVPN will fall back to using its own copy, bundled in
src/compat/compat-lz4*.
gert
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