[MacPorts] #67817: librsvg-devel: builds fail for older macOS releases, due to libcurl issue: dyld: lazy symbol binding failed: Symbol not found: _SCDynamicStoreCopyProxies

[MacPorts]

#67817: librsvg-devel: builds fail for older macOS releases, due to libcurl issue:
dyld: lazy symbol binding failed: Symbol not found:
_SCDynamicStoreCopyProxies
---------------------+--------------------------------
 Reporter:  mascguy  |      Owner:  mascguy
     Type:  defect   |     Status:  assigned
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.8.1
 Keywords:           |       Port:  librsvg-devel curl
---------------------+--------------------------------
 Details for 10.9, though the pattern is identical for 10.8 and earlier
 too:

 {{{
 cargo --locked build --verbose  --release --lib \
 && cd librsvg-devel/work/librsvg-2.56.3 && /bin/sh ./libtool  --tag=CC
 --mode=link /opt/local/bin/clang-mp-16
 -isysroot/ -arch x86_64  -lobjc -Wl,-syslibroot,/ -arch x86_64 -o
 librsvg_c_api.la _rsvg_dummy.lo
 && mv librsvg-devel/work/librsvg-2.56.3/target/x86_64-apple-
 darwin/release/librsvg.a .libs/librsvg_c_api.a

 dyld: lazy symbol binding failed: Symbol not found:
 _SCDynamicStoreCopyProxies
   Referenced from: /opt/local/lib/libcurl.4.dylib
   Expected in: flat namespace

 dyld: Symbol not found: _SCDynamicStoreCopyProxies
   Referenced from: /opt/local/lib/libcurl.4.dylib
   Expected in: flat namespace
 }}}

 Testing locally on 10.9, with the published binary for `curl`, I see the
 same issue. But `port rev-upgrade` doesn't report any issues, so it's not
 immediately apparent whether `curl` needs to be rev-bumped... or whether a
 recent change caused this issue.

-- 
Ticket URL: <https://trac.macports.org/ticket/67817>
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