I have built OpenSSL from source (an intentionally old version; built with
./config && make && make test) and would prefer to use what I have built without doing
make install to link against my program.
The command that’s failing is:
gcc -Wall -Wextra -Werror -static -Lopenssl/openssl-0.9.8k/ -lssl -lcrypto -Iopenssl/openssl-0.9.8k/include -o myApp source1.o source2.o common.o`
And I receive a series of errors similar to:
common.c:(.text+0x1ea): undefined reference to `SSL_write'
This makes me think there’s something funky with my OpenSSL. If I omit
-Lopenssl/openssl-0.9.8k/ from my command, the error changes to being unable to:
/usr/bin/ld: cannot find -lssl /usr/bin/ld: cannot find -lcrypto
Am I compiling OpenSSL incorrectly? Or how should I best resolve this?
Silly “Linux-isms” strike again! Apparently, I need to change my command such that the
-l stuff is at the end like (despite what
man gcc seems to indicate):
gcc -Wall -Wextra -Werror -static -o myApp source1.o source2.o common.o -Lopenssl/openssl-0.9.8k/ -lssl -lcrypto -Iopenssl/openssl-0.9.8k/include
Answered By – mrduclaw