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https://issues.apache.org/jira/browse/PROTON-1381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15825817#comment-15825817
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Volker Diels-Grabsch commented on PROTON-1381:
----------------------------------------------
Sorry, my bad. I linked against OpenSSL 1.0.2j, but accidentally compiled with
the headers of 1.1.0 ... I'm surprised that this worked, but it did.
If there is no backwards-compatible solution, how should we proceed? Add an
"#if/#else" for the OpenSSL version?
> Compiler errors: dereferencing pointer to incomplete type DH {aka struct
> dh_st}
> -------------------------------------------------------------------------------
>
> Key: PROTON-1381
> URL: https://issues.apache.org/jira/browse/PROTON-1381
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-c
> Affects Versions: 0.14.0, 0.16.0
> Environment: GCC 6.2.1, OpenSSL 1.1.0c
> Reporter: Volker Diels-Grabsch
> Assignee: Andrew Stitcher
> Priority: Blocker
> Labels: build, patch
> Attachments:
> qpid-proton-0.14.0-fix-dereferencing-pointer-to-incomplete-type.patch
>
>
> Proton-C doesn't build with GCC 6.2.1 and OpenSSL 1.1.0c. The error message
> is:
> {code:borderStyle=solid}
> [ 51%] Building C object
> proton-c/CMakeFiles/qpid-proton.dir/src/ssl/openssl.c.o
> /.../proton-c/src/ssl/openssl.c: In function ‘get_dh2048’:
> /.../proton-c/src/ssl/openssl.c:406:5: error: dereferencing pointer to
> incomplete type ‘DH {aka struct dh_st}’
> dh->p=BN_bin2bn(dh2048_p,sizeof(dh2048_p),NULL);
> ^~
> proton-c/CMakeFiles/qpid-proton.dir/build.make:1102: recipe for target
> 'proton-c/CMakeFiles/qpid-proton.dir/src/ssl/openssl.c.o' failed
> {code}
> The attached patch fixes this issue for 0.14.0 and also works for 0.16.0.
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