On 3/7/2017 7:17 AM, Sam Varshavchik wrote:
> Alessandro Vesely writes:
>
>> On Tue 07/Mar/2017 03:43:45 +0100 Sam Varshavchik wrote:
>> > Download: http://www.courier-mta.org/download.html#unicode
>> >
>> > This is a test build of the courier-unicode package, that uses
>> C++11's unicode
>> > support. Please report any build issues to the courier-users list.
>>
>> Yes, it works, but I had to manually set CXXFLAGS="-std=c++11". That
>> could be
>> avoided by using AX_CXX_COMPILE_STDCXX in configure. I found no m4
>> dir, so I
>> added it and saved there the file I found in:
>> https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
>>
>> I attach other minor changes. I didn't test it on a "difficult"
>> system. I
>> guess that if 'optional' works as advertised, the behavior won't get
>> worse.
>
> Ok, but C++11 is mandatory now, that's the whole point. Looks like
> this macro tries both -std=c++11 and -std=c++0x, which is what's
> needed; however looks like the macro executes a fairly extensive check
> for C++11 coverage, while all that's needed here is unicode string
> support.
>
> I've added this macro and prepared the 20150307 build. Can someone try
> courier-unicode-20150307 to see if it builds by default with gcc 4.4.
I tried it on my CentOS 6.6 system and it failed. (Although your test
program did not give any errors.)
$ ./configure
...
checking whether g++ supports C++11 features by default... no
checking whether g++ supports C++11 features with -std=gnu++11... no
checking whether g++ supports C++11 features with -std=gnu++0x... no
checking whether g++ supports C++11 features with -std=c++11... no
checking whether g++ supports C++11 features with +std=c++11... no
checking whether g++ supports C++11 features with -h std=c++11... no
checking whether g++ supports C++11 features with -std=c++0x... no
checking whether g++ supports C++11 features with +std=c++0x... no
checking whether g++ supports C++11 features with -h std=c++0x... no
configure: error: *** A compiler with support for C++11 language
features is required.
$ gcc -v
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info
--with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap
--enable-shared --enable-threads=posix --enable-checking=release
--with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-gnu-unique-object
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada
--enable-java-awt=gtk --disable-dssi
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic
--with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.4.7 20120313 (Red Hat 4.4.7-11) (GCC)
This machine hasn't been updated in a while and there is an update
available to gcc 4.4.7-17. I'm not sure if that would make a difference
or not. I may be able to try it in a few days if you don't have another
solution.
--
Bowie
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