g++ won't load
in [Setup]
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From: jny0 on 23 Jul 2010 11:59 Hi, I've just realised that g++ on my computer doesn't work properly. I normally use gcc, so hasn't until now been a problem. I read that g++ is now part of gcc, but that I would need gcc-2.n.tar.gz, which I've dutifully downloaded. When I try to create the makefile (using ./ configure), I'm faced with the following error: gen-num-limits failed to build, exiting Any ideas? Regards
From: mjt on 23 Jul 2010 12:49 On Fri, 23 Jul 2010 08:59:59 -0700 (PDT) jny0 <jny0(a)hotmail.com> wrote: > I've just realised that g++ on my computer doesn't work properly. I > normally use gcc, so hasn't until now been a problem. I read that g++ > is now part of gcc, but that I would need gcc-2.n.tar.gz, which I've > dutifully downloaded. When I try to create the makefile (using ./ > configure), I'm faced with the following error: > > gen-num-limits failed to build, exiting What GNU/Linux distro are you using? Are you attempting to build g++? Why not install a built [binary] package? -- Critic, n.: A person who boasts himself hard to please because nobody tries to please him. - Ambrose Bierce, "The Devil's Dictionary" <<< Remove YOURSHOES to email me >>>
From: jny0 on 25 Jul 2010 03:23 Hi, I'm using Fedora, and gcc was installed using the installation manager yum. I can compile c code using gcc (i.e. gcc test.c -o test), but not c++ code using g++ (i.e. g++ test.cc). When I try to do so I'm informed that the header file isn't recognised... Error: iostream.h: No such file or directory When investigating on the GNU website, I learned that g++ is now part of gcc, but that libstdc++-2.n.tar.gz would need acquiring and installing, as this contains iostream.h. I've done so but no no avail. This concludes the story so far!
From: John Hasler on 25 Jul 2010 07:58 jny0 writes: > I learned that g++ is now part of gcc, but that libstdc++-2.n.tar.gz > would need acquiring and installing, as this contains iostream.h. What you learned is incorrect. You need to install the relevant Fedora packages. I believe that "yum install gcc-c++" will get you what you need. -- John Hasler jhasler(a)newsguy.com Dancing Horse Hill Elmwood, WI USA
From: jny0 on 25 Jul 2010 10:49
That's what I did. yum install gcc-c++ is exactly what I mean when I said "gcc was installed using the installation manager yum". If I do it again, I'm told it's up to date, and there's nothing to be done. What I learned came from: ftp://ftp.gnu.org/gnu/g++.README ....and says: G++ is no longer a separate distribution. Version 2 of G++ is an integral part of GCC. You should get the gcc-2.n.tar.gz sources (where n is the highest numbered archive) in the gcc/ directory. C++ users will almost certainly need to retrieve the libstdc+ +-2.n.tar.gz distribution as well, since that's where all the standard C++ stream classes (and header files like iostream.h) live. |