pgsql: Use -Bsymbolic for shared libraries on HP-UX and Solaris.

Use -Bsymbolic for shared libraries on HP-UX and Solaris.

These platforms are also subject to the mis-linking problem addressed
in commit e3d77ea6b.  It's not clear whether we could solve it with
a solution equivalent to GNU ld's version scripts, but -Bsymbolic
appears to fix it, so let's use that.

Like the previous commit, back-patch as far as v10.

Discussion: https://postgr.es/m/153626613985.23143.4743626885618266803@wrigleys.postgresql.org

Branch
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REL_11_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/e3aafe200125975022653eb3197bcf03f7744391

Modified Files
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src/Makefile.shlib | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)