Hi, after you installed gcc-4.7 and g++-4.7 you have to set these compilers at
the very beginning instead of the default ones. For example, create a clean
build directory and in case you are using ccmake, set the two variables
CMAKE_[C/CXX]_COMPILER already as command line arguments (I guess it would be
something like "ccmake -DCMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc-4.7
-DCMAKE_CXX_COMPILER:FILEPATH=/usr/bin/g++-4.7 path/to/src". In case of
cmake-gui, you can specify these compilers easily the first time you press
configure and are prompted for the generator.
Stefan
________________________________________
Von: Rockers, Elijah D. [edrock...@houstonmethodist.org]
Gesendet: Montag, 14. September 2015 19:53
An: mitk-users@lists.sourceforge.net
Cc: Bajaj, Sahil
Betreff: [mitk-users] Problem making MITK with Ubuntu 12.04
Hello,
I am having trouble completeing the build on Ubuntu 12.04LTS. ccmake tells me
that I need to install the two different compilers, gcc and g++ which I have
done, but it is still giving me the error message. I have attached the output
log. I reviewed it, but did not see anything to indicate gcc or g++ were not
correctly installed.
I was unable to git clone from git.mitk.org, so I had to use the mirror.
Here is the exact error message I get from cmake:
CMake Error at CMakeLists.txt:96 (message):
GCC version must be at least 4.7.3
If you are using Ubuntu 12.04, you can easily install gcc and g++ 4.7.3 (or
any later version available) in addition to your version 4.6.3:
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-4.7 g++-4.7
Make sure to explicitly specify these compilers when configuring MITK:
CMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc-4.7
CMAKE_CXX_COMPILER:FILEPATH=/usr/bin/g++-4.7
For more information on the proposed PPA see the Toolchain Updates section
of https://wiki.ubuntu.com/ToolChain.<https://wiki.ubuntu.com/ToolChain>
Thanks
Houston Methodist. Leading Medicine.
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