Hello,
Today I came across this run time error when running a nim compiled program
that dynamically linked with an external c++ library .so (let's call it
`external_lib_64.so`)
could not load: external_lib_64.so
compile with -d:nimDebugDlOpen for more information
Run
So I compiled and ran the nim program with `-d:nimDebugDlOpen` and still that
did not give any useful information.
I knew that the `external_lib_64.so` was compiled using g++ 6.3.0. By a stroke
of luck, it occurred to me that may be I should check the g++ version in my
current environment where I was compiling the nim program .. and indeed it was
different; it was g++ 8.4.0.
Once I switch to g++ 6.3.0, re-compiled the nim program and ran it, that "could
not load: external_lib_64.so" error went away and things once again ran fine as
before.
**Questions to the community:**
* Should we need to match the g++ versions this way all the time? I thought
that the compiled external_lib_64.so was "bulletproof" now that it was
compiled. But apparently not?
* @Araq Is it possible for the Nim compiler to detect this g++ version
mismatch and throw a better error?
This was using the latest stable nim 1.2.0.
