>From: owner-openssl-us...@openssl.org On Behalf Of Paulo Roberto >Sent: Monday, 27 August, 2012 20:21
Okay, this time you did post the error. >When I use the command gcc teste.c -lssl -o teste: >/tmp/ccyvrO2i.o: In function `main': >rsa.c:(.text+0x8): undefined reference to `BN_new' <snip many more BN> BN_* are in libcrypto not libssl. >Another attempt: >ubuntu@omap:~/arquivos$ gcc rsa.c -Wl, -lssl, -lcrypto -o teste >/usr/bin/ld: cannot find : No such file or directory >/usr/bin/ld: cannot find -lssl, >collect2: ld returned 1 exit status That's closer, but you've mixed up two different things. -Wl,x,y -- comma(s) and NO space -- passes "opaque" linker arguments, like -Wl,-Bstatic in a previous response. -lxxx is not opaque (driver knows it) so don't use -Wl . You do want -lssl -lcrypto (space but no comma). >Any idea? If you need both SSL and "low-level" routines like BN_*, use -lssl -lcrypto . If only need low-level, just -lcrypto . If you need both depending on your linker order may matter, in which case -lssl should be first. >I haven't found the libssl.so in my directory /usr/lib. Then that's (probably) not the right location on your Unix/distro. If it is dynamic, on Linux at least, ldd should work. Do ldd `which openssl` and look to see where libssl.* and libcrypto.* are. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org