Welcome to the most active Linux Forum on the web.
Go Back > Forums > Linux Forums > Linux - Software
User Name
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.


  Search this Thread
Old 03-03-2015, 06:34 PM   #1
LQ Newbie
Registered: Mar 2015
Posts: 1

Rep: Reputation: Disabled
Installing dealii-8.2.1 in Linux Mint 17.1

I am trying to install dealii-8.2.1 software in Linux Mint using the Virtual Box in a 32-bit windows desktop. But I am getting the error message regarding the CMAKE_CXX_COMPILER. How to get rid of it? Please follow the error message that appears during installation through terminal window.

-- This is CMake 
CMake Error at CMakeLists.txt:61 (INCLUDE): 
  include could not find load file: 


CMake Error at CMakeLists.txt:86 (INCLUDE): 
  include could not find load file: 


-- The CXX compiler identification is unknown 
-- The C compiler identification is GNU 4.8.2 
-- Check for working C compiler: /usr/bin/cc 
-- Check for working C compiler: /usr/bin/cc -- works 
-- Detecting C compiler ABI info 
-- Detecting C compiler ABI info - done 
CMake Error: your CXX compiler: "CMAKE_CXX_COMPILER-NOTFOUND" was not found.   Please set CMAKE_CXX_COMPILER to a valid compiler path or name. 
CMake Error at CMakeLists.txt:92 (ENABLE_LANGUAGE_OPTIONAL): 
  Unknown CMake command "ENABLE_LANGUAGE_OPTIONAL". 

-- Configuring incomplete, errors occurred! 
See also "/home/hasib/Downloads/dealii-8.2.1/build/CMakeFiles/CMakeOutput.log". 
See also "/home/hasib/Downloads/dealii-8.2.1/build/CMakeFiles/CMakeError.log".
Old 03-06-2015, 05:04 PM   #2
Senior Member
Registered: Jan 2009
Location: RHELtopia....
Distribution: Solaris 11.2/Slackware/RHEL/
Posts: 1,491
Blog Entries: 2

Rep: Reputation: Disabled
You aren't, by any chance, trying to compile this lib outside of the build directory, are you? If you try to "make" outside the build directory "make install <switches/options> /path/to/build_directory" you anger the compiler gods, and they are a venal bunch.

The reason I'm asking is the only time I can remember seeing this error...

Make Error: your CXX compiler: "CMAKE_CXX_COMPILER-NOTFOUND" was not found.
I was engaged in such foolishness.

BTW, did you look in " /home/hasib/Downloads/dealii-8.2.1/build/CMakeFiles/CMakeError.log" to see what make was whining about when it died?
Old 03-06-2015, 09:37 PM   #3
LQ 5k Club
Registered: Jan 2008
Location: Copenhagen DK
Distribution: PCLinuxOS2023 Fedora38 + 50+ other Linux OS, for test only.
Posts: 17,511

Rep: Reputation: 3641Reputation: 3641Reputation: 3641Reputation: 3641Reputation: 3641Reputation: 3641Reputation: 3641Reputation: 3641Reputation: 3641Reputation: 3641Reputation: 3641
"deal.II" : Latest is
There may be some updates for version `~8.2.1' ...
$ git clone

Your issues : Seems to be an incomplete install of "gcc-4.8".
Please do : $ sudo apt-get install g++



Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help installing Mint 17 in place of Mint 15 on dual boot with windows7 Gwynny Linux - Newbie 5 07-26-2014 09:58 AM
Installing linux mint 12 within windows razedafer Linux Mint 4 03-31-2012 05:03 AM
Installing Linux Mint 12 over Linux Mint 11 rick1959 Linux - Software 2 01-03-2012 08:22 PM
installing linux mint smiffyuk Linux - Newbie 10 08-19-2008 05:18 AM
re installation of grub in Linux mint after installing xp over mint sampad.sarangi General 1 01-15-2008 05:37 PM > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 04:17 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration