wxWidgets-3.0: configure fails on Leopard

[tenomoto (Takeshi Enomoto)]

gcc-4.2 on Leopard does not accept -stdlib option. I was able to install wxWidgets-3.0 on Leopard (ppc) if -stdlib is not used in configure-ldflags.

#configure.ldflags-append \
#                    -stdlib=${configure.cxx_stdlib}

[mojca (Mojca Miklavec)]

Dear Jeremy, I would like to ask you for help with this one. I know for a workaround: for example testing whether OS version is at least 10.6, else don't bother adding -stdlib to LDFLAGS.

But what would be the "official"/suggested way to deal with apparently unsupported stdlib flag on old OSes? The existence of the flag is probably related to compiler choice, not so much on OS version?

[jeremyhu (Jeremy Huddleston Sequoia)]

That's only relevant for clang. Look in other ports for examples. Many such ports do things like:

set cxx_stdlibflags {}
if {[string match *clang* ${configure.cxx}]} {
    set cxx_stdlibflags -stdlib=${configure.cxx_stdlib}
}

[mojca (Mojca Miklavec)]

A patch to avoid using stdlib with gcc (on Leopard)

[mojca (Mojca Miklavec)]

Thank you very much for the hint.

Takeshi, can you please try the attached patch?

Portfile

@@ -110 +110 @@
                     --enable-graphics_ctx \
                     --with-macosx-sdk=no \
                     --with-macosx-version-min=no
-configure.ldflags-append \
+if {[string match *clang* ${configure.cxx}]} {
+    configure.ldflags-append \
                     -stdlib=${configure.cxx_stdlib}
+}
 
 if {${subport} eq "wxPython-3.0"} {
     set wxpythonsubset      wxPython-${wxpython_ver}-MacPorts-subset

In case it works for you, feel free to commit it.

[tenomoto (Takeshi Enomoto)]

Thanks for the patch. Done in r124083. I have a buildbot error for Snow Leopard, but it seems that the binary is created and I don't have configure error on a Snow Leopard machine, I close the ticket.

[mojca (Mojca Miklavec)]

Oh, don't worry. The failure comes from wxWidgets-3.0-libcxx which is just a weird workaround for ports requiring C++11. I should blacklist some compilers based on stdlib choice, but I'm not yet sure which ones (maybe clang is the only acceptable compiler).

[mojca (Mojca Miklavec)]

Also: the binary wasn't created this time. The binary still comes from an old compilation (binary found, not building again).