Before using OPENSSL_VERSION_NUMBER, you should have this line:
#include <openssl/opensslv.h>
So something like this should make it possible:
#include <openssl/opensslv.h>
#if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
/******higher version code************/
#include <openssl/evp.h>
#else
/*******lower version code *********/
#include <openssl/aes.h>
#endif
If that's not the case, you may have found a bug. A short example
program that demonstrates this flaw would be nice in that case.
Cheers,
Richard
On Thu, 06 May 2021 12:38:30 +0200,
Shivakumar Poojari wrote:
>
>
> Hi All,
>
> We are upgrading our code to openssl 3.0. But we need to keep the older
> version of code also which is 1.0. So, we tried by keeping the newer version
> of the code as below but when we compiled the code for 3.0, evp.h is not
> getting included. Please suggest f our approach is correct
>
> #if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
>
> /******higher version code************/
>
> #include <openssl/evp.h>
>
> #else
>
> /*******lower version code *********/
>
> #include <openssl/aes.h>
>
> #endif
>
> Also, we found that OPENSSL_VERSION_NUMBER is deprecated, so thought of using
> the below macros but we think since this macro is defined in newer version this might
> not work when we compile it for older versions. Please suggest how to handle this.
>
> if (OPENSSL_VERSION_MAJOR >= 3)
> #include <openssl/evp.h>
> else if (OPENSSL_VERSION_MAJOR < 3)
> #include <openssl/aes.h>
>
> thanks,
> shiva kumar
>
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--
Richard Levitte levitte@xxxxxxxxxxx
OpenSSL Project http://www.openssl.org/~levitte/
