[MacPorts] #63121: poppler @20.12.1_3 does not build on PPC Tiger because it wants boost176

[MacPorts]

#63121: poppler @20.12.1_3 does not build on PPC Tiger because it wants boost176
------------------------+--------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.7.1
Resolution:             |   Keywords:  tiger
      Port:  poppler    |
------------------------+--------------------

Comment (by evanmiller):

 [https://github.com/boostorg/core/commit/128d9314d6f814930400c46c9afd34399d19132b
 This commit] will fix the {{{Availability.h}}} errors if it can be
 backported to boost176. However, there is another error that will need to
 be addressed:

 {{{
 :info:build darwin.compile.c++
 bin.v2/libs/nowide/build/darwin-7.5.0/release/threading-multi/visibility-
 hidden/cstdlib.o
 :info:build     "/opt/local/bin/g++-mp-7"   -fvisibility-inlines-hidden
 -Os -std=gnu++11 -D_GLIBCXX_USE_CXX11_ABI=0 -arch ppc  -fPIC -m32 -O3
 -Wall -fvisibility=hidden -dynamic -gdwarf-2 -fexceptions -Wno-inline
 -DBOOST_ALL_NO_LIB=1 -DBOOST_NOWIDE_DYN_LINK=1 -DBOOST_NOWIDE_NO_LFS
 -DNDEBUG  -I"."  -c -o "bin.v2/libs/nowide/build/darwin-7.5.0/release
 /threading-multi/visibility-hidden/cstdlib.o"
 "libs/nowide/src/cstdlib.cpp"
 :info:build libs/nowide/src/cstdlib.cpp: In function 'int
 boost::nowide::unsetenv(const char*)':
 :info:build libs/nowide/src/cstdlib.cpp:31:30: error: void value not
 ignored as it ought to be
 :info:build          return ::unsetenv(key);
 }}}

 See attached log for complete context.

-- 
Ticket URL: <https://trac.macports.org/ticket/63121#comment:16>
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