otp_net.c: use EAI_OVERFLOW when it is defined

Closes: #1254
Signed-off-by: Sergey Fedorov <vital.had@gmail.com>

Author: barracuda156

src/libAtomVM/otp_net.c

@@ -85,8 +85,10 @@ static term eai_errno_to_term(int err, GlobalContext *glb)
 #ifdef HAVE_EXTENDED_EAI_ERRNO
         case EAI_BADHINTS:
             return globalcontext_make_atom(glb, ATOM_STR("\xB", "eaibadhints"));
+#ifdef HAVE_EAI_OVERFLOW
         case EAI_OVERFLOW:
             return globalcontext_make_atom(glb, ATOM_STR("\xB", "eaioverflow"));
+#endif
         case EAI_PROTOCOL:
             return globalcontext_make_atom(glb, ATOM_STR("\xB", "eaiprotocol"));
         case EAI_SYSTEM:

src/platforms/generic_unix/lib/CMakeLists.txt

@@ -102,6 +102,10 @@ check_symbol_exists(EAI_BADHINTS "netdb.h" HAVE_EXTENDED_EAI_ERRNO)
 if (HAVE_EXTENDED_EAI_ERRNO)
     target_compile_definitions(libAtomVM${PLATFORM_LIB_SUFFIX} PUBLIC HAVE_EXTENDED_EAI_ERRNO)
 endif()
+check_symbol_exists(EAI_OVERFLOW "netdb.h" HAVE_EAI_OVERFLOW)
+if (HAVE_EAI_OVERFLOW)
+    target_compile_definitions(libAtomVM${PLATFORM_LIB_SUFFIX} PUBLIC HAVE_EAI_OVERFLOW)
+endif()
 
 if (COVERAGE)
     include(CodeCoverage)