[MacPorts] #60769: svn2git @1.0.18: error: Qt requires a C++11 compiler and yours does not seem to be that.
MacPorts
noreply at macports.org
Fri Jul 3 10:28:08 UTC 2020
#60769: svn2git @1.0.18: error: Qt requires a C++11 compiler and yours does not
seem to be that.
------------------------------------+------------------------
Reporter: ryandesign | Owner: ryandesign
Type: defect | Status: assigned
Priority: Normal | Milestone:
Component: ports | Version: 2.6.2
Keywords: mountainlion mavericks | Port: svn2git
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[https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/121894/steps
/install-port/logs/stdio svn2git doesn't build on 10.9] and 10.8:
{{{
error: Qt requires a C++11 compiler and yours does not seem to be that.
}}}
I've already added `compiler.cxx_standard 2011` so a C++11-capable
compiler is available, but the one on 10.8 and 10.9 doesn't ''default'' to
C++11 and the build isn't setting a `-std` flag of its own.
I've already added `configure.cxxflags-append -std=c++11` but this does
nothing. It appears that the qmake5-1.0 portgroup ignores what ports set
in `configure.cxxflags` and it has a `qt5.cxxflags` option instead.
(Why???)
Oddly on 10.10 and later the build succeeds because it ''does'' set the
`-std=gnu++11` flag. I can't figure out what's setting that on 10.10 and
later or why it's not being set on 10.9 and earlier.
The build succeeds on 10.7 and 10.6 because they use an older version of
qt that I guess didn't require C++11.
--
Ticket URL: <https://trac.macports.org/ticket/60769>
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