[ 
https://issues.apache.org/jira/browse/PROTON-1381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Volker Diels-Grabsch updated PROTON-1381:
-----------------------------------------
    Description: 
Proton-C doesn't build with GCC 6.2.1 and OpenSSL 1.1.0c. The error message is:

{quote}
{{[ 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}}
{quote}

The attached patch fixes this issue for 0.14.0 and also works for 0.16.0.

  was:
Proton-C doesn't build with GCC 6.2.1 and OpenSSL 1.1.0c. The error message is:

{quote}
[ 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
{quote}

The attached patch fixes this issue for 0.14.0 and also works for 0.16.0.


> 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
>            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:
> {quote}
> {{[ 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}}
> {quote}
> The attached patch fixes this issue for 0.14.0 and also works for 0.16.0.



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