I am trying to build a C++ project in NetBeans 8.2 under OS X with the C++14 standard. However, I am always getting the error while trying to build:
g++ -c -g -std=c++14 -MMD -MP -MF "build/Debug/GNU-MacOSX/test.o.d" -o build/Debug/GNU-MacOSX/test.o test.cpp
error: invalid value 'c++14' in '-std=c++14'
make[2]: *** [build/Debug/GNU-MacOSX/test.o] Error 1
make[1]: *** [.build-conf] Error 2
make: *** [.build-impl] Error 2
BUILD FAILED (exit value 2, total time: 570ms)
Nevertheless, I can run the same command from the terminal without any problems. My version of g++ is 7.0.0, and so the C++14 standard is fully supported.
Therefore, it seems like NetBeans tries to run some older version of g++, which was probably supplied with the system but now is replaced with a new one. To this I have two questions:
How can it be possible that default versions in the terminal and NetBeans are different?
How can I configure NetBeans to work with the terminal default version?
EDIT:
In the terminal which g++ yields /opt/local/bin/g++. The same is in the field Preferences -> C/C++ -> C++ compiler. Adding the --version argument in NetBeans yields Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn), which is definitely different from the console version. So, I still do not understand: why calling g++ under the same path resolves to different versions in NetBeans and the terminal?
Related
My CentOS 7 machine has a default GCC version of 4.8.5. I want to use a higher version of GCC. So, I executed the following steps in a terminal:
sudo yum install centos-release-scl
sudo yum install devtoolset-10-gcc*
scl enable devtoolset-10 bash
After performing the steps, my GCC is now 10.2.1. I then launched Eclipse CDT (10.2.0) through the terminal. Upon enabling C++20 in Eclipse, I tried to compile a simple "hello world" code, but I received the following error in the Eclipse console:
g++ -std=c++2a -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/dummy2.d" -MT"src/dummy2.o" -o "src/dummy2.o" "../src/dummy2.cpp"
g++: error: unrecognized command line option ‘-std=c++2a’
make: *** [src/dummy2.o] Error 1
"make all" terminated with exit code 2. Build might be incomplete.
My system PATH variable has the following directory as its first entry: /opt/rh/devtoolset-10/root/usr/bin. So, I don't know why my Eclipse is still using the old GCC 4.8.5. How do I adjust my Eclipse settings so that I am able to compile higher versions of C++ in CentOS 7?
[ 25%] Building CXX object CMakeFiles/linreg-dlib.dir/linreg_dlib.cc.o
/usr/bin/c++ -I/home/jeong/다운로드/dlib-master -I"/home/jeong/바탕화면/9781789955330_Code/Chapter01/dlib_samples/path to dlib install dir/include" -std=c++17 -msse3 -fopenmp -Wall -Wextra -o CMakeFiles/linreg-dlib.dir/linreg_dlib.cc.o -c /home/jeong/바탕화면/9781789955330_Code/Chapter01/dlib_samples/linreg_dlib.cc
c++: error: unrecognized command line option ‘-std=c++17’
make[2]: *** [CMakeFiles/linreg-dlib.dir/linreg_dlib.cc.o] error 1
make[2]: Leaving directory `/home/jeong/바탕화면/9781789955330_Code/Chapter01/dlib_samples'
make[1]: *** [CMakeFiles/linreg-dlib.dir/all] error 2
make[1]: Leaving directory `/home/jeong/바탕화면/9781789955330_Code/Chapter01/dlib_samples'
make: *** [all] error 2
c++: error: unrecognized command line option ‘-std=c++17’
I am running the practice code using the dlib library.
It runs until'cmake', but the above error appears during'make' process. Need to update gcc?
The gcc version is shown below.
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
How to do it if you need to update the version
I wonder.
The GCC releases page (https://www.gnu.org/software/gcc/releases.html) says that gcc 4.8.5 was released on June 23, 2015.
The GCC developers are really good, but shipping C++17 support two years before C++17 was completed is beyond good.
That compiler may support -std=c++1z for some C++17 features, though.
As others have mentioned your compiler is too old for C++17.
It sounds like you are on either RHEL 7 or CentOS 7. Those OSes support installation of "Developer Toolsets" with newer versions of the compiler and toolchain (in addition to the standard system compiler).
This might be an option for you.
For RHEL 7 see: https://access.redhat.com/documentation/en-us/red_hat_developer_toolset/10/
For CentOS see: https://www.softwarecollections.org/en/scls/rhscl/devtoolset-8/
I am trying to use torch together with the hdf5 package. I am trying to install it via luarocks install hdf5 but during the build phase I get an error regarding the gcc-plugin header. (gcc relies on clang backend). The complete error message is:
luarocks install --local hdf5
Installing https://luarocks.org/hdf5-2.0.0-1.src.rock...
Using https://luarocks.org/hdf5-2.0.0-1.src.rock... switching to 'build' mode
Warning: variable CFLAGS was not passed in build_variables
gcclua-config.h:1:10: fatal error: 'gcc-plugin.h' file not found
#include "gcc-plugin.h"
^
1 error generated.
env MACOSX_DEPLOYMENT_TARGET=10.8 gcc -c -o gcclua.o -Iplugin/include -fPIC -O2 -Wall -Wformat-security -I/usr/local/Cellar/lua/5.2.4_3/include gcclua.c
gcclua.c:7:10: fatal error: 'gcc-plugin.h' file not found
#include "gcc-plugin.h"
^
1 error generated.
make[2]: *** [gcclua.o] Error 1
make[1]: *** [gcc] Error 2
make: *** [gcc-lua] Error 2
Just to give more information, I am relying on
gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
xcrun: error: couldn't stat toolchain: '/Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.11.xctoolchain' (errno=No such file or directory)
Apple LLVM version 7.3.0 (clang-703.0.29)
Target: x86_64-apple-darwin15.0.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
Does anybody has maybe a hint how to fix this issue?
Every help is greatly appreciated!!!
In addition to gcc, you need the headers, which on Linux you can get with sudo apt-get install gcc-4.8-plugin-dev. If you're on a different OS or version of gcc, just substitute the appropriate package manager / gcc version number.
gcc-plugin.h is a part of GCC, so I think you'll really need to install gcc to get that. Clang provides a gcc-compatible front-end script but that merely presents a command-line driver with compatible flags.
You should be able to install GCC using Homebrew: https://apple.stackexchange.com/a/86588
I bet you tried to work on a CS287-16 class :). I have contacted the developer of this library who wasn't that easy to do something to solve the problem. Apparently he has no friends who have a Mac PC... As a workaround I could suggest you to use a Docker container with Linux in it to run Lua scripts. That's what I have ended up with...
Here's the Docker image I was talking about: https://github.com/aoboturov/cs287-16-lua. You could build it yourself and the just run as a Docker container :)
ok so i installed CDT for C++ development on my machine. I tried to make it work and followed these instructions to set everything up. By mistake i have gone into the Project>Properties>C++ Build>Enviorement and hit restore defaults by mistake. I dont know if that changed anything but i get the following error when i run my class.
I tried to switch the slashes in the given path "C:\Users\Nathan\workspace\Project\Debug" to forward slashes but that did nothing. I still get the same error. Any hints on what im doing wrong?
19:12:58 **** Incremental Build of configuration Debug for project Project ****
make all
Building file: ../src/Project.cpp
Invoking: Cross G++ Compiler
g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/Project.d" -MT"src/Project.d" -o "src/Project.o" "../src/Project.cpp"
cygwin warning:
MS-DOS style path detected: C:\Users\Nathan\workspace\Project\Debug
Preferred POSIX equivalent is: /cygdrive/c/Users/Nathan/workspace/Project/Debug
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
In file included from /usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/cwchar:44:0,
from /usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/bits/postypes.h:42,
from /usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/iosfwd:42,
from /usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/ios:39,
from /usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/ostream:40,
from /usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/iostream:40,
from ../src/Project.cpp:9:
/usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/cstddef:44:20: fatal error: stddef.h: No such file or directory
src/subdir.mk:18: recipe for target `src/Project.o' failed
compilation terminated.
make: *** [src/Project.o] Error 1
19:12:59 Build Finished (took 535ms)
Im running into big trouble with my compiler Dev-C++, every time i compile any project, whether it is 1 im working on, or a completely fresh 1 I get the same error every single time, I have been on the bloodshed forums and IRC channel but Im not getting anywhere with it... at the moment and every project I try to compile gives the same error...
C:\Dev-Cpp\MY_Project\Makefile.win [Build Error] [main.o] Error 1
Compiler log
Compiler: Default compiler
Building Makefile: "C:\Dev-Cpp\MY_Project\Makefile.win"
Executing make...
make.exe -f "C:\Dev-Cpp\MY_Project\Makefile.win" all
g++.exe -D__DEBUG__ -c main.cpp -o main.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include" -I"C:/Dev-Cpp/include/c++/3.4.2/backward" -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32" -I"C:/Dev-Cpp/include/c++/3.4.2" -I"C:/Dev-Cpp/include" -pg -g3
The system cannot find the path specified.
make.exe: *** [main.o] Error 1
Execution terminated
What is your OS? I think Bloodshed version of the program have some problems with Win8. However you can download Orwell version. It runs smoothly.
Have you looked at this thread? Specifically the first post on this page.