conflicting types for 'EC_KEY_insert_key_method_data'

/llvm_installation/bin/clang  -O2 -pipe -march=native -DTERMIOS -DANSI_SOURCE -I/usr/src/secure/lib/libcrypto/../../../crypto/openssl -I/usr/src/secure/lib/libcrypto/../../../crypto/openssl/crypto -I/usr/obj/usr/src/secure/lib/libcrypto -DOPENSSL_THREADS -DDSO_DLFCN -DHAVE_DLFCN_H -DOPENSSL_NO_IDEA -DL_ENDIAN -DOPENSSL_IA32_SSE2 -DAES_ASM -DVPAES_ASM -DOPENSSL_BN_ASM_PART_WORDS -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m -DMD5_ASM -DGHASH_ASM -DRMD160_ASM -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DWHIRLPOOL_ASM -I/usr/src/secure/lib/libcrypto/../../../crypto/openssl/crypto/asn1 -I/usr/src/secure/lib/libcrypto/../../../crypto/openssl/crypto/evp -I/usr/src/secure/lib/libcrypto/../../../crypto/openssl/crypto/modes -DNO_IDEA -std=gnu89 -Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality -Wno-unused-function -Wno-conversion -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter -Wno
 -
parentheses -c /usr/src/secure/lib/libcrypto/../../../crypto/openssl/crypto/ec/ec_key.c -o ec_key.o
/usr/src/secure/lib/libcrypto/../../../crypto/openssl/crypto/ec/ec_key.c:532:7: error:
       conflicting types for 'EC_KEY_insert_key_method_data'
void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data,
       ^
/usr/include/openssl/ec.h:809:6: note: previous declaration is here
void EC_KEY_insert_key_method_data(EC_KEY *, void *data,
      ^


Fix include paths (-I) in the makefiles?