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Compilation Issues(CentOS 7): #198

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slowlane81 opened this issue Jul 27, 2021 · 8 comments
Closed

Compilation Issues(CentOS 7): #198

slowlane81 opened this issue Jul 27, 2021 · 8 comments

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@slowlane81
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I looked at several clsoed errors like the one that I had(repeatedly)

g++ -I. -I.. -DVMC_SRC -DVMC -DLINUX -DPOSIX -pipe -DMUD_DEBUG -g -Wall -g -c dilshare.cpp -o ../../build//vmc/dilshare.o
In file included from /usr/include/c++/4.8.2/forward_list:35:0,
from ../structs.h:10,
from ../utility.cpp:14,
from utility.cpp:10:
/usr/include/c++/4.8.2/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
#error This file requires compiler and library support for the
^
In file included from /usr/include/c++/4.8.2/forward_list:35:0,
from ../structs.h:10,
from ../structs.cpp:8,
from structs.cpp:11:
/usr/include/c++/4.8.2/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
#error This file requires compiler and library support for the
^

My makefile already has -std=c++11 in it, what else could be causing this issue?
@Seifert69
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That's perplexing. I did some searching - with no luck. When I look at your error, it's not obvious that the -std=c++11 flag is set:

g++ -I. -I.. -DVMC_SRC -DVMC -DLINUX -DPOSIX -pipe -DMUD_DEBUG -g -Wall -g -c dilshare.cpp -o ../../build//vmc/dilshare.o

Could you perhaps try to compile with just that line and add the two flags by hand, see what happens, i.e. something like:

g++ -I. -I.. -DVMC_SRC -DVMC -DLINUX -DPOSIX -pipe -DMUD_DEBUG -g -Wall -g -std=c++11 -c dilshare.cpp -o ../../build//vmc/dilshare.o

You could also try with the std=gnu++11

Let me know how it goes please.

@slowlane81
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It leaves this error when I add the flags by hand:

Assembler messages:
Fatal error: can't create ../../build//vmc/dilshare.o: No such file or directory

@Seifert69
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Seifert69 commented Dec 24, 2021 •
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If you're up for it you might want to try to build with the new CMake that was just added today by @bluedreamer. Would love to hear how that works out.

@bluedreamer
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I started to test this on cent 7, got distracted with xmas, you need to install cmake3 though from epel and maybe downgrade the minimum version in the top level CMakeLists.txt - I think the most "advanced" feature Im using is from 3.12

@Seifert69
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Seifert69 commented Dec 24, 2021 via email

@bluedreamer
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Been a while since I've used ubuntu/debian. A lot of distro's are shipping with cmake 3 by default - you can check with the usual cmake --version

Which version are you using? I can install a VM then and test it out

@Seifert69
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Seifert69 commented Dec 25, 2021 via email

@Seifert69
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Thank you @bluedreamer :-)

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3 participants
@bluedreamer @Seifert69 @slowlane81