sh run-tests.sh elfcore.test.sh
/running tests on '/home/ralt/Dev/github.com/ralt/sbcl/tests/../src/runtime/sbcl --core /home/ralt/Dev/github.com/ralt/sbcl/tests/../output/sbcl.core --disable-ldb --noinform --no-sysinit --no-userinit --noprint --disable-debugger'
// Running impure tests (SH-TEST)
// Running elfcore.test.sh in COMPILE evaluator mode
cc -g -Wall -Wundef -Wsign-compare -Wpointer-arith -O3 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Wunused-parameter -fno-omit-frame-pointer -momit-leaf-frame-pointer -I.  -c -o os-common.o os-common.c
os-common.c: In function 'os_dlsym_default':
os-common.c:155:18: warning: implicit declaration of function 'dlsym' [-Wimplicit-function-declaration]
  155 |     void *frob = dlsym(RTLD_DEFAULT, name);
      |                  ^~~~~
os-common.c:155:24: error: 'RTLD_DEFAULT' undeclared (first use in this function)
  155 |     void *frob = dlsym(RTLD_DEFAULT, name);
      |                        ^~~~~~~~~~~~
os-common.c:155:24: note: each undeclared identifier is reported only once for each function it appears in
make: *** [<builtin>: os-common.o] Error 1