Linker error during compilation of libisl.so

[D337z]

The linker cannot find libisl.so in the ./.libs/ directory. When searching the directory, libisl.so and libisl.so.23 is shown to be compressed files. However, the linker cannot locate them. I have tried with both gold and bfd linkers and neither can locate it. This issue occurs with both imath and gmp libraries used, so I know that it doesn't involve them. Here is the output of the error:

/usr/bin/ld.bfd: cannot find ./.libs/libisl.so: No such file or directory
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:1794: isl_polyhedron_sample] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory '/home/{Redacted}/Downloads/isl'
make[1]: *** [Makefile:2133: all-recursive] Error 1
make[1]: Leaving directory '/home/{Redacted}/Downloads/isl'
make: *** [Makefile:1620: all] Error 2