BUG #13622: unsafe use of relative rpath libpq.5.dylib

adamwizon@me.com writes:

I was building Perl module DBD::Pg and received the following link error:

Reason: unsafe use of relative rpath libpq.5.dylib in
/Users/mydir/Perl_Modules/DBD-Pg-3.5.1/blib/arch/auto/DBD/Pg/Pg.bundle with
restricted binary at
/System/Library/Perl/5.18/darwin-thread-multi-2level/DynaLoader.pm line
194.

Hm ... I think this represents a build bug in DBD::Pg. You need to report
this to the authors of that module (who don't hang out here AFAIK).

regards, tom lane

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This is not BUG!
This is a new policy of secure SIP, this library have permission
"restricted"
Use manual
http://www.macworld.com/article/2986118/security/how-to-modify-system-integrity-protection-in-el-capitan.html

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Yes, the issue is being caused by SIP. Here is a workaround. It is not
difficult but it is a bit cumbersome.

1. Boot into recovery mode and disable SIP.
2. reboot
3. You need to run the install_name_tool command to specify the absolute
path to the libpq.5.dylib library. You can see where it is pointing to with
another command, otool.

Ex. libpq.5.dylib is a relative path and that is causing the error.

bash-3.2# otool -L <Dir_Where_Your_postgres_lib_is>/pdo_pgsql.so
<Dir_Where_Your_postgres_lib_is>/pdo_pgsql.so:
libpq.5.dylib (compatibility version 5.0.0, current version 5.6.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version
1225.1.1)

Run this.

bash-3.2# install_name_tool -change libpq.5.dylib /usr/lib/libpq.5.dylib
<Dir_Where_Your_postgres_lib_is>/pdo_pgsql.so

After running when you check with otool you will see the change. (it says
/usr/lib/libpq.5.dylib)

bash-3.2# otool -L <Dir_Where_Your_postgres_lib_is>/pdo_pgsql.so
<Dir_Where_Your_postgres_lib_is>/pdo_pgsql.so:
/usr/lib/libpq.5.dylib (compatibility version 5.0.0, current version 5.6.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version
1225.1.1)

4. Boot back into recovery mode and enable SIP.
5. Reboot again. That should be it.

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