Build the x509_acert openssl example against the right headers

Author: aidangarske

x509_acert/Makefile

@@ -1,13 +1,19 @@
 CC = gcc
 
 WOLFSSL_INSTALL_DIR = /usr/local
-OPENSSL_INSTALL_DIR = /usr/local
 
 WOLFSSL_CFLAGS = -Werror -Wall -I$(WOLFSSL_INSTALL_DIR)/include -DUSE_WOLFSSL
 WOLFSSL_LIBS   = -L$(WOLFSSL_INSTALL_DIR)/lib -lm -lwolfssl
 
+# empty = system OpenSSL; pointing this at /usr/local would shadow openssl/*.h with wolfSSL's opensslextra compat headers
+OPENSSL_INSTALL_DIR ?=
+ifneq ($(OPENSSL_INSTALL_DIR),)
 OPENSSL_CFLAGS = -Werror -Wall -I$(OPENSSL_INSTALL_DIR)/include
-OPENSSL_LIBS   = -L$(OPENSSL_INSTALL_DIR)/lib64/ -lm -lssl -lcrypto
+OPENSSL_LIBS   = -L$(OPENSSL_INSTALL_DIR)/lib -lm -lssl -lcrypto
+else
+OPENSSL_CFLAGS = -Werror -Wall
+OPENSSL_LIBS   = -lm -lssl -lcrypto
+endif
 
 DEBUG_FLAGS    = -g -DDEBUG
 

x509_acert/README.md

@@ -44,7 +44,7 @@ make wolfssl_acert
 Build the openssl example with:
 
 ```sh
-make wolfssl_acert
+make openssl_acert
 ```
 
 Note: you may need to use this script to set your environment
@@ -58,9 +58,9 @@ info: using env: /usr/local/lib64/:/usr/local/lib/
 ### ACERT verification with pubkey
 
 ```sh
-$./wolfssl_acert -f acerts/acert.pem -k acerts/acert_pubkey.pem
-info: using acert file: acerts/acert.pem
-info: using pubkey file: acerts/acert_pubkey.pem
+$./wolfssl_acert -f certs/acert.pem -k certs/acert_pubkey.pem
+info: using acert file: certs/acert.pem
+info: using pubkey file: certs/acert_pubkey.pem
 info: PEM_read_bio_X509_ACERT: good
 info: acert version: 1
 info: PEM_read_bio_PUBKEY: good