Re: Selecting a C++ compiler

[Jason Bacon <outpaddling%yahoo.com@localhost>]

On 04/15/18 10:26, Jason Bacon wrote:
> On 04/15/18 07:53, Joerg Sonnenberger wrote:
> > On Sun, Nov 26, 2017 at 12:09:05PM -0600, Jason Bacon wrote:
> > > My understanding is that the aversion to mixing GCC versions is 
> > > about ABI
> > > differences, mainly for C++.  I don't think there are any such 
> > > differences
> > > between 48 and 49, so I would think it's reasonable to make an 
> > > exception
> > > this case.
> > The libstdc++ ABI is different, i.e. the implementation of regex and
> > IIRC thread.
> >
> > Joerg
>
> Between 4.8 and 4.9?  Interesting...
>
> Almost irrelevant at this point from my perspective anyway.  I'm using 
> at least 5.x as a minimum these days.
>
> [root@centosdev ddocent]# cat /usr/pkg/etc/mk.conf
> # Example /usr/pkg/etc/mk.conf file produced by bootstrap-pkgsrc
> # Fri Jan 26 21:29:27 CST 2018
>
> PKG_DEVELOPER=        yes
>
> .ifdef BSD_PKG_MK    # begin pkgsrc settings
>
> ABI=            64
>
> PKG_DBDIR=        /usr/pkg/pkgdb
> LOCALBASE=        /usr/pkg
> VARBASE=        /usr/pkg/var
> PKG_TOOLS_BIN=        /usr/pkg/sbin
> PKGINFODIR=        info
> PKGMANDIR=        man
>
> X11_TYPE=        modular
> PREFER_NATIVE=        no
> PREFER_PKGSRC=        yes
> PKGSRC_FORTRAN=        gfortran
> FETCH_USING=        curl
> SKIP_LICENSE_CHECK=    yes
> PKG_OPTIONS.libfetch=    inet6 openssl
>
> .if     empty(PKGPATH:Marchivers/bzip2) && \
>     empty(PKGPATH:Marchivers/pax) && \
>     empty(PKGPATH:Marchivers/xz) && \
>     empty(PKGPATH:Mconverters/help2man) && \
>     empty(PKGPATH:Mconverters/p5-Unicode-EastAsianWidth) && \
>     empty(PKGPATH:Mdevel/autoconf) && \
>     empty(PKGPATH:Mdevel/gettext-lib) && \
>     empty(PKGPATH:Mdevel/gettext-tools) && \
>     empty(PKGPATH:Mdevel/gmp) && \
>     empty(PKGPATH:Mdevel/gtexinfo) && \
>     empty(PKGPATH:Mdevel/libtool-base) && \
>     empty(PKGPATH:Mdevel/m4) && \
>     empty(PKGPATH:Mdevel/ncurses) && \
>     empty(PKGPATH:Mdevel/nbpatch) && \
>     empty(PKGPATH:Mdevel/p5-gettext) && \
>     empty(PKGPATH:Mlang/gcc5) && \
>     empty(PKGPATH:Mlang/gcc5-libs) && \
>     empty(PKGPATH:Mlang/perl5) && \
>     empty(PKGPATH:Mmath/cloog) && \
>     empty(PKGPATH:Mmath/isl) && \
>     empty(PKGPATH:Mmath/mpcomplex) && \
>     empty(PKGPATH:Mmath/mpfr) && \
>     empty(PKGPATH:Mmisc/p5-Locale-libintl) && \
>     empty(PKGPATH:Mpkgtools/cwrappers) && \
>     empty(PKGPATH:Mpkgtools/digest) && \
>     empty(PKGPATH:Mpkgtools/pkg_install-info) && \
>     empty(PKGPATH:Msysutils/checkperms) && \
>     empty(PKGPATH:Mtextproc/p5-Text-Unidecode)
>
> GCC_REQD+=5.0
>
> .endif  # GCC_REQD
>
> .endif            # end pkgsrc settings
Was just testing this setup on NetBSD 7.1.1 and had to add the following:

empty(PKGPATH:Mconverters/libiconv)
empty(PKGPATH:Mdevel/gmake)
empty(PKGPATH:Mtextproc/gsed)