I'm trying to test a branch of osm2pgsql (switching to cmake). It needs
gcc 4.8 because it relies on C++11.
On netbsd-6 i386, gcc is 4.5, so I installed gcc48 and gcc48-libs, and
put /usr/pkg/gcc48/bin in $PATH, and tried to build. This resulted in
complaints about std::to_string:
/home/gdt/SOFTWARE/GEO/osm2pgsql/contrib/libosmium/osmium/io/gzip_compression.hpp:85:30: error: ‘to_string’ is not a member of ‘std’
error += std::to_string(zlib_error);
^
This error doesn't happen on netbsd-7 amd64, so I'm guessing it's some
sort of bleedthrough of the 4.5 includes into the 4.8 world. It seems
obvious that the 4.8 gcc should find the 4.8 version of the stdc
headers, rather than the system ones. It's also obvious that cmake's
habit of suppressing the actual build line in the make log is not
helpful, but with effort the build line is:
/usr/pkg/gcc48/bin/c++ -DBOOST_TEST_DYN_LINK -DFIXED_POINT -DOSM2PGSQL_DATADIR=\".\" -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -g -DNDEBUG -I/home/gdt/SOFTWARE/GEO/osm2pgsql -I/home/gdt/SOFTWARE/GEO/osm2pgsql/build -isystem /home/gdt/SOFTWARE/GEO/osm2pgsql/contrib/libosmium -isystem /usr/pkg/include -I/usr/pkg/include/lua-5.2 -Wall -std=c++11 -o CMakeFiles/osm2pgsql_lib.dir/parse-osmium.cpp.o -c /home/gdt/SOFTWARE/GEO/osm2pgsql/parse-osmium.cpp
My question is: when using gcc48 from pkgsrc to build something (not
using pkgsrc), what am I supposed to do, beyond prepending PATH?
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