错误：contiki os libtomcrypt库的枚举器的重新声明

Question

I am working on encryption in CONTIKI OS and COOJA simulator which i tired to use the library libtomcrypt. I include the library into CONTIKI folder but when i tired to call the rsa_make_key function it given me this error. Thanks in advance and hope to heard from you guys soon.

> make TARGET=cooja clean 
rm -f *~ *core core *.srec \
    *.lst *.map \
    *.cprg *.bin *.data contiki*.a *.firmware core-labels.S *.ihex *.ini \
    *.ce *.co
rm -rf 
rm -rf obj_cooja

> make sender-node.cooja TARGET=cooja 
  CC        sender-node.c
In file included from ../../../core/./../apps/libtomcrypt/src/headers/tomcrypt.h:80:0,
                 from sender-node.c:43:
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:4:4: error: redeclaration of enumerator 'PK_PUBLIC'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:4:4: note: previous definition of 'PK_PUBLIC' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:5:4: error: redeclaration of enumerator 'PK_PRIVATE'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:5:4: note: previous definition of 'PK_PRIVATE' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:16:4: error: redeclaration of enumerator 'PKA_RSA'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:16:4: note: previous definition of 'PKA_RSA' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:17:4: error: redeclaration of enumerator 'PKA_DSA'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:17:4: note: previous definition of 'PKA_DSA' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:20:16: error: redefinition of 'struct Oid'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:20:16: note: originally defined here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:24:3: error: conflicting types for 'oid_st'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:24:3: note: previous declaration of 'oid_st' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:26:5: error: conflicting types for 'pk_get_oid'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:26:5: note: previous declaration of 'pk_get_oid' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:32:16: error: redefinition of 'struct Rsa_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:32:16: note: originally defined here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:51:3: error: conflicting types for 'rsa_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:51:3: note: previous declaration of 'rsa_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:53:5: error: conflicting types for 'rsa_make_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:53:5: note: previous declaration of 'rsa_make_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:55:5: error: conflicting types for 'rsa_get_size'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:55:5: note: previous declaration of 'rsa_get_size' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:57:5: error: conflicting types for 'rsa_exptmod'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:57:5: note: previous declaration of 'rsa_exptmod' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:61:6: error: conflicting types for 'rsa_free'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:61:6: note: previous declaration of 'rsa_free' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:80:5: error: conflicting types for 'rsa_encrypt_key_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:80:5: note: previous declaration of 'rsa_encrypt_key_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:85:5: error: conflicting types for 'rsa_decrypt_key_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:85:5: note: previous declaration of 'rsa_decrypt_key_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:91:5: error: conflicting types for 'rsa_sign_hash_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:91:5: note: previous declaration of 'rsa_sign_hash_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:98:5: error: conflicting types for 'rsa_verify_hash_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:98:5: note: previous declaration of 'rsa_verify_hash_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:104:5: error: conflicting types for 'rsa_sign_saltlen_get_max_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:104:5: note: previous declaration of 'rsa_sign_saltlen_get_max_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:107:5: error: conflicting types for 'rsa_export'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:107:5: note: previous declaration of 'rsa_export' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:108:5: error: conflicting types for 'rsa_import'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:108:5: note: previous declaration of 'rsa_import' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:170:16: error: redefinition of 'struct Dh_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:170:16: note: originally defined here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:174:3: error: conflicting types for 'dh_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:174:3: note: previous declaration of 'dh_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:178:5: error: conflicting types for 'dh_get_size'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:178:5: note: previous declaration of 'dh_get_size' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:180:5: error: conflicting types for 'dh_make_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:180:5: note: previous declaration of 'dh_make_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:181:6: error: conflicting types for 'dh_free'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:181:6: note: previous declaration of 'dh_free' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:183:5: error: conflicting types for 'dh_export'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:183:5: note: previous declaration of 'dh_export' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:184:5: error: conflicting types for 'dh_import'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:184:5: note: previous declaration of 'dh_import' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:186:5: error: conflicting types for 'dh_shared_secret'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:186:5: note: previous declaration of 'dh_shared_secret' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:189:5: error: conflicting types for 'dh_encrypt_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:189:5: note: previous declaration of 'dh_encrypt_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:194:5: error: conflicting types for 'dh_decrypt_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:194:5: note: previous declaration of 'dh_decrypt_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:198:5: error: conflicting types for 'dh_sign_hash'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:198:5: note: previous declaration of 'dh_sign_hash' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:202:5: error: conflicting types for 'dh_verify_hash'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:202:5: note: previous declaration of 'dh_verify_hash' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:241:3: error: conflicting types for 'ltc_ecc_set_type'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:241:3: note: previous declaration of 'ltc_ecc_set_type' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:253:3: error: conflicting types for 'ecc_point'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:253:3: note: previous declaration of 'ecc_point' was here
In file included from ../../../core/./../apps/libtomcrypt/src/headers/tomcrypt.h:80:0,
                 from sender-node.c:43:
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:271:3: error: conflicting types for 'ecc_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:271:3: note: previous declaration of 'ecc_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:274:31: error: conflicting types for 'ltc_ecc_sets'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:274:31: note: previous declaration of 'ltc_ecc_sets' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:278:6: error: conflicting types for 'ecc_get_size'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:278:6: note: previous declaration of 'ecc_get_size' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:280:6: error: conflicting types for 'ecc_make_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:280:6: note: previous declaration of 'ecc_make_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:281:6: error: conflicting types for 'ecc_make_key_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:281:6: note: previous declaration of 'ecc_make_key_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:282:6: error: conflicting types for 'ecc_free'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:282:6: note: previous declaration of 'ecc_free' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:284:6: error: conflicting types for 'ecc_export'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:284:6: note: previous declaration of 'ecc_export' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:285:6: error: conflicting types for 'ecc_import'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:285:6: note: previous declaration of 'ecc_import' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:286:6: error: conflicting types for 'ecc_import_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:286:6: note: previous declaration of 'ecc_import_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:288:5: error: conflicting types for 'ecc_ansi_x963_export'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:288:5: note: previous declaration of 'ecc_ansi_x963_export' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:289:5: error: conflicting types for 'ecc_ansi_x963_import'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:289:5: note: previous declaration of 'ecc_ansi_x963_import' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:290:5: error: conflicting types for 'ecc_ansi_x963_import_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:290:5: note: previous declaration of 'ecc_ansi_x963_import_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:292:6: error: conflicting types for 'ecc_shared_secret'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:292:6: note: previous declaration of 'ecc_shared_secret' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:295:6: error: conflicting types for 'ecc_encrypt_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:295:6: note: previous declaration of 'ecc_encrypt_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:300:6: error: conflicting types for 'ecc_decrypt_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:300:6: note: previous declaration of 'ecc_decrypt_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:304:5: error: conflicting types for 'ecc_sign_hash_raw'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:304:5: note: previous declaration of 'ecc_sign_hash_raw' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:308:6: error: conflicting types for 'ecc_sign_hash'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:308:6: note: previous declaration of 'ecc_sign_hash' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:312:5: error: conflicting types for 'ecc_verify_hash_raw'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:312:5: note: previous declaration of 'ecc_verify_hash_raw' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:316:6: error: conflicting types for 'ecc_verify_hash'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:316:6: note: previous declaration of 'ecc_verify_hash' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:321:12: error: conflicting types for 'ltc_ecc_new_point'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:321:12: note: previous declaration of 'ltc_ecc_new_point' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:322:12: error: conflicting types for 'ltc_ecc_del_point'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:322:12: note: previous declaration of 'ltc_ecc_del_point' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:328:5: error: conflicting types for 'ltc_ecc_projective_dbl_point'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:328:5: note: previous declaration of 'ltc_ecc_projective_dbl_point' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:331:5: error: conflicting types for 'ltc_ecc_projective_add_point'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:331:5: note: previous declaration of 'ltc_ecc_projective_add_point' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:349:5: error: conflicting types for 'ltc_ecc_mulmod'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:349:5: note: previous declaration of 'ltc_ecc_mulmod' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:353:5: error: conflicting types for 'ltc_ecc_mul2add'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:353:5: note: previous declaration of 'ltc_ecc_mul2add' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:369:5: error: conflicting types for 'ltc_ecc_map'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:369:5: note: previous declaration of 'ltc_ecc_map' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:403:3: error: conflicting types for 'dsa_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:403:3: note: previous declaration of 'dsa_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:405:5: error: conflicting types for 'dsa_make_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:405:5: note: previous declaration of 'dsa_make_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:406:6: error: conflicting types for 'dsa_free'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:406:6: note: previous declaration of 'dsa_free' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:408:5: error: conflicting types for 'dsa_sign_hash_raw'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:408:5: note: previous declaration of 'dsa_sign_hash_raw' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:412:5: error: conflicting types for 'dsa_sign_hash'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:412:5: note: previous declaration of 'dsa_sign_hash' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:416:5: error: conflicting types for 'dsa_verify_hash_raw'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:416:5: note: previous declaration of 'dsa_verify_hash_raw' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:420:5: error: conflicting types for 'dsa_verify_hash'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:420:5: note: previous declaration of 'dsa_verify_hash' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:424:5: error: conflicting types for 'dsa_encrypt_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:424:5: note: previous declaration of 'dsa_encrypt_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:429:5: error: conflicting types for 'dsa_decrypt_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:429:5: note: previous declaration of 'dsa_decrypt_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:433:5: error: conflicting types for 'dsa_import'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:433:5: note: previous declaration of 'dsa_import' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:434:5: error: conflicting types for 'dsa_export'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:434:5: note: previous declaration of 'dsa_export' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:435:5: error: conflicting types for 'dsa_verify_key'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:435:5: note: previous declaration of 'dsa_verify_key' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:437:5: error: conflicting types for 'dsa_shared_secret'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:437:5: note: previous declaration of 'dsa_shared_secret' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:445:14: error: nested redefinition of 'enum ltc_asn1_type_'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:445:14: error: redeclaration of 'enum ltc_asn1_type_'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:445:14: note: originally defined here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:447:2: error: redeclaration of enumerator 'LTC_ASN1_EOL'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:447:2: note: previous definition of 'LTC_ASN1_EOL' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:448:2: error: redeclaration of enumerator 'LTC_ASN1_BOOLEAN'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:448:2: note: previous definition of 'LTC_ASN1_BOOLEAN' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:449:2: error: redeclaration of enumerator 'LTC_ASN1_INTEGER'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:449:2: note: previous definition of 'LTC_ASN1_INTEGER' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:450:2: error: redeclaration of enumerator 'LTC_ASN1_SHORT_INTEGER'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:450:2: note: previous definition of 'LTC_ASN1_SHORT_INTEGER' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:451:2: error: redeclaration of enumerator 'LTC_ASN1_BIT_STRING'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:451:2: note: previous definition of 'LTC_ASN1_BIT_STRING' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:453:2: error: redeclaration of enumerator 'LTC_ASN1_OCTET_STRING'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:453:2: note: previous definition of 'LTC_ASN1_OCTET_STRING' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:454:2: error: redeclaration of enumerator 'LTC_ASN1_NULL'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:454:2: note: previous definition of 'LTC_ASN1_NULL' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:455:2: error: redeclaration of enumerator 'LTC_ASN1_OBJECT_IDENTIFIER'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:455:2: note: previous definition of 'LTC_ASN1_OBJECT_IDENTIFIER' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:456:2: error: redeclaration of enumerator 'LTC_ASN1_IA5_STRING'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:456:2: note: previous definition of 'LTC_ASN1_IA5_STRING' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:457:2: error: redeclaration of enumerator 'LTC_ASN1_PRINTABLE_STRING'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:457:2: note: previous definition of 'LTC_ASN1_PRINTABLE_STRING' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:459:2: error: redeclaration of enumerator 'LTC_ASN1_UTF8_STRING'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:459:2: note: previous definition of 'LTC_ASN1_UTF8_STRING' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:460:2: error: redeclaration of enumerator 'LTC_ASN1_UTCTIME'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:460:2: note: previous definition of 'LTC_ASN1_UTCTIME' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:461:2: error: redeclaration of enumerator 'LTC_ASN1_CHOICE'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:461:2: note: previous definition of 'LTC_ASN1_CHOICE' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:462:2: error: redeclaration of enumerator 'LTC_ASN1_SEQUENCE'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:462:2: note: previous definition of 'LTC_ASN1_SEQUENCE' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:463:2: error: redeclaration of enumerator 'LTC_ASN1_SET'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:463:2: note: previous definition of 'LTC_ASN1_SET' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:465:2: error: redeclaration of enumerator 'LTC_ASN1_SETOF'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:465:2: note: previous definition of 'LTC_ASN1_SETOF' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:466:2: error: redeclaration of enumerator 'LTC_ASN1_RAW_BIT_STRING'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:466:2: note: previous definition of 'LTC_ASN1_RAW_BIT_STRING' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:467:2: error: redeclaration of enumerator 'LTC_ASN1_TELETEX_STRING'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:467:2: note: previous definition of 'LTC_ASN1_TELETEX_STRING' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:468:2: error: redeclaration of enumerator 'LTC_ASN1_CONSTRUCTED'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:468:2: note: previous definition of 'LTC_ASN1_CONSTRUCTED' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:469:2: error: redeclaration of enumerator 'LTC_ASN1_CONTEXT_SPECIFIC'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:469:2: note: previous definition of 'LTC_ASN1_CONTEXT_SPECIFIC' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:473:16: error: redefinition of 'struct ltc_asn1_list_'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:473:16: note: originally defined here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:484:3: error: conflicting types for 'ltc_asn1_list'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:484:3: note: previous declaration of 'ltc_asn1_list' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:497:5: error: conflicting types for 'der_encode_sequence_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:497:5: note: previous declaration of 'der_encode_sequence_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:502:5: error: conflicting types for 'der_decode_sequence_ex'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:502:5: note: previous declaration of 'der_decode_sequence_ex' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:507:5: error: conflicting types for 'der_length_sequence'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:507:5: note: previous declaration of 'der_length_sequence' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:515:5: error: conflicting types for 'der_decode_subject_public_key_info'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:515:5: note: previous declaration of 'der_decode_subject_public_key_info' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:522:5: error: conflicting types for 'der_encode_set'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:522:5: note: previous declaration of 'der_encode_set' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:525:5: error: conflicting types for 'der_encode_setof'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:525:5: note: previous declaration of 'der_encode_setof' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:533:6: error: conflicting types for 'der_decode_sequence_flexi'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:533:6: note: previous declaration of 'der_decode_sequence_flexi' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:535:6: error: conflicting types for 'der_sequence_free'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:535:6: note: previous declaration of 'der_sequence_free' was here
In file included from ../../../core/./../apps/libtomcrypt/src/headers/tomcrypt.h:80:0,
                 from sender-node.c:43:
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:624:5: error: conflicting types for 'der_decode_choice'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:624:5: note: previous declaration of 'der_decode_choice' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:638:3: error: conflicting types for 'ltc_utctime'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:638:3: note: previous declaration of 'ltc_utctime' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:640:5: error: conflicting types for 'der_encode_utctime'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:640:5: note: previous declaration of 'der_encode_utctime' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:643:5: error: conflicting types for 'der_decode_utctime'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:643:5: note: previous declaration of 'der_decode_utctime' was here
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:646:5: error: conflicting types for 'der_length_utctime'
../../../core/./../apps/libtomcrypt/src/headers/tomcrypt_pk.h:646:5: note: previous declaration of 'der_length_utctime' was here
make: *** [sender-node.co] Error 1
Process returned error code 2

This is the part where i tired to call the functionprng_state* prng;

 prng_state* prng;
  rsa_key* key;
  int result = rsa_make_key(
    prng,
    0,
    rsa_get_size(key),
    65537,
    key);

I had also include the tomcrypt.h for the library in the code

#include "../apps/libtomcrypt/src/headers/tomcrypt.h"

Answer 1

I suppose that either tomcrypt.h or `tomcrypt_pk.h" file gets included several times and that therefore the same things get defined several times.

To try out if this is the reason, I'd add the following lines at the top and at the end of tomcrypt.h , respectively.

At the top:

#ifndef _TOMCRYPT_H
#define _TOMCRYPT_H

At the end:

#endif

Repeat this for tomcat_pk.h :

#ifndef _TOMCRYPT_PK_H
#define _TOMCRYPT_PK_H
...
#endif

If the code then compiles, then the problem is that the same header file gets included (directly or indirectly) more than once in a compilation unit may also apply to other header files, eg tomcrypt_pk.h . So you could also check if you incude, for example, tomcrypt_pk.h directly in your .c -file, while another header file (eg tomcrypt.h ) also includes this file.

If this is the case, you have two principal ways of solving the problem: (1) remove unnecessary include statements, (2) protect the include file from being interpreted more than once, eg by surrounding the definitions by #ifndef - #define -statements. I'd prefer option (1) over option (2).

Note that - as pointed out by StoryTeller - it is not encouraged to edit third party library files, even not for introducing such #ifndef-#define -statements. If you cannot manage to follow option (1), you could still surround the respective #include -statements in your files, eg

// in myFile.c:
#ifndef _TOMCRYPT_PK_H
#define _TOMCRYPT_PH_H
#include "tomcrypt_pk.h"
#endif