On 08/14/2013 10:15 AM, Alexander Dahl wrote:
> Hei hei, 
> 
> after migrating from OSELAS toolchain 2011.11.3 to 2012.12.1 ssmtp fails
> to build with ssl support enabled, at least on our platform which ist
> arm-v5te. I had a rough look over the ssmtp sources and it needs openssl
> for this and uses -lssl as linker option. Compiling produces lots of
> warning, and then linking fails. Of course openssl is enabled in ptxdist
> menuconfig and builds succesfully.
> 
> We're not using ssmtp with ssl at the moment, but if anyone has an idea,
> here's the failing part:
> 
> ---------------------
> target: ssmtp.compile
> ---------------------
> 
> make[1]: Entering directory `XXXXX/build-target/ssmtp-2.64'
> arm-v5te-linux-gnueabi-gcc -o ssmtp ssmtp.o arpadate.o base64.o
> xgethostname.o md5auth/md5c.o md5auth/hmac_md5.o  -lnsl  -lssl
> /opt/OSELAS.Toolchain-2012.12.1/arm-v5te-linux-gnueabi/gcc-4.7.2-glibc-2.16.0-binutils-2.22-kernel-3.6-sanitized/lib/gcc/arm-v5te-linux-gnueabi/4.7.2/../../../../arm-v5te-linux-gnueabi/bin/ld:
> ssmtp.o: undefined reference to symbol 'X509_free@@OPENSSL_1.0.0'
> /opt/OSELAS.Toolchain-2012.12.1/arm-v5te-linux-gnueabi/gcc-4.7.2-glibc-2.16.0-binutils-2.22-kernel-3.6-sanitized/lib/gcc/arm-v5te-linux-gnueabi/4.7.2/../../../../arm-v5te-linux-gnueabi/bin/ld:
> note: 'X509_free@@OPENSSL_1.0.0' is defined in DSO
> XXXXX/sysroot-target/usr/lib/libcrypto.so.1.0.0 so try adding it to the
> linker command line
> XXXXX/sysroot-target/usr/lib/libcrypto.so.1.0.0: could not read symbols:
> Invalid operation
> collect2: error: ld returned 1 exit status
> make[1]: Leaving directory `XXXXX/build-target/ssmtp-2.64'
> make[1]: *** [ssmtp] Error 1
> make: *** [XXXXX/state/ssmtp.compile] Error 2

You have to link against libcrypto. I'm preparing a patch.

Marc

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