Out-of-tree build

For the meson-build of sage, I need to out-of-tree build ecl.

I tried the following:

mkdir temp/build
cd temp/build
<path to>/ecl/src/configure --enable-manual=no --enable-unicode=yes --with-defsystem --prefix=/usr/local --libdir=/usr/local/lib64 --bindir=/usr/local/bin
make -j8
DESTDIR=<path to>/temp/dist make install

Running then <path to>/temp/dist/usr/local/bin/ecl however gives

<path to>/temp/dist/usr/local/bin/ecl: error while loading shared libraries: libecl.so.24.5: cannot open shared object file: No such file or directory

What's the best way to fix this?

After setting

export LDFLAGS=-Wl,-rpath,<path to>/temp/dist/usr/local/lib64

and running the above commands again, I get a bit further. However, now in ecl I get

> (require 'cmp)

;;; Loading #P"<path to>/temp/build/cmp.fas"
("CMP")

for some reason it still refers to the build and not dist directory. How to fix it?

Using the same steps, but with different env variables I also get

Condition of type: SIMPLE-ERROR
Module error: Don't know how to REQUIRE CMP.
Available restarts:

1. (RESTART-TOPLEVEL) Go back to Top-Level REPL.

Broken at SI:BYTECODES. [Evaluation of: (REQUIRE (QUOTE CMP))] In: #<process TOP-LEVEL 0x7b9a09bb5f00>.

I still have to figure out which env variable is the problem here. Any advice which ones to check?