bzflag @2.4.14: error: A c++ compiler with C++0x support is required to build BZFlag

[ryandesign (Ryan Carsten Schmidt)]

checking ... p r o g r a m s ... (2 of 9)
checking whether we are using the GNU C++ compiler... yes
checking whether /usr/bin/g++-4.2 accepts -g... yes
checking dependency style of /usr/bin/g++-4.2... gcc3
checking if /usr/bin/g++-4.2 supports C++0x features without additional flags... no
checking if /usr/bin/g++-4.2 supports C++0x features with -std=c++0x... no
checking if /usr/bin/g++-4.2 supports C++0x features with -std=gnu++0x... no
configure: error: A c++ compiler with C++0x support is required to build BZFlag

[ryandesign (Ryan Carsten Schmidt)]

The above was on 10.6, but the problem extends to 10.7 and 10.8:

./SDL2Window.h:26:10: fatal error: 'cstdint' file not found
#include <cstdint>
         ^
1 error generated.

The usual solution is to include the cxx11 1.1 portgroup.

[allejo (Vladimir Jimenez)]

Yea, compiling bzflag requires a compiler with c++0x support. Is having two values for PortGroup allowed or how would that work with app 1.0 already being set?

On a somewhat related note, bzflag only officially supports 10.7+. Is there a way this can be added to the Portfile?

Sorry for the noob questions, I'm still new to the macports scene!

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

Yes, two values of PortGroup is fine.

PortSystem          1.0
PortGroup           app 1.0
PortGroup           cxx11 1.1

name                bzflag
version             2.4.14

If you are sure that bzflag will not work on 10.6 or lower, you could add something like

if {${os.major} < 11} {
    pre-fetch {
        ui_error "${name} requires Mac OS X 10.7 or greater"
        return -code error "incompatible OS version"
    }
}

However, I was about to get bzflag to compile and run on a 10.6 virtual machine.
You might not want to add the above code until you are sure it is needed.
They might have only chosen 10.7 since it was the first OS with libc++.
PortGroup cxx11 1.1 may be able to get around that.

On an unrelated note, the livecheck did not work for me.
However, livecheck.regex {(\d+(?:\.\d+)+)/} did work.

[ryandesign (Ryan Carsten Schmidt)]

Replying to allejo:

Yea, compiling bzflag requires a compiler with c++0x support. Is having two values for PortGroup allowed or how would that work with app 1.0 already being set?

Yes, that's fine. PortGroup in MacPorts is basically like #include in C.

[kencu (Ken)]

I built the last version of bzflag on 10.6.8 without any trouble, but it errored on launch with a complaint about OpenGL. Haven't tried it since the update.

[ken-cunningham-webuse]

In ed43244c1cd1b12d4a259ccf7ce3d703e361f2df/macports-ports (master):

bzflag: requires cxx11 1.1 PG

closes: #56516