+static int
+is_shared_build(void)
+{
+#define EAL_SO "librte_eal.so"
+ char soname[32];
+ size_t len, minlen = strlen(EAL_SO);
+
+ len = strlcpy(soname, EAL_SO"."ABI_VERSION, sizeof(soname));
+ if (len > sizeof(soname)) {
+ RTE_LOG(ERR, EAL, "Shared lib name too long in shared build check\n");
+ len = sizeof(soname) - 1;
+ }
+
+ while (len >= minlen) {
+ /* check if we have this .so loaded, if so - shared build */
+ RTE_LOG(DEBUG, EAL, "Checking presence of .so '%s'\n", soname);
+ if (dlopen(soname, RTLD_LAZY | RTLD_NOLOAD) != NULL) {
+ RTE_LOG(INFO, EAL, "Detected shared linkage of DPDK\n");
+ return 1;
+ }
+
+ /* remove any version numbers off the end to retry */
+ while (len-- > 0)
+ if (soname[len] == '.') {
+ soname[len] = '\0';
+ break;
+ }
+ }
+
+ RTE_LOG(INFO, EAL, "Detected static linkage of DPDK\n");
+ return 0;
+}
+