Author Topic: cannot set default compiler  (Read 3340 times)

Offline cbnewbie

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cannot set default compiler
« on: April 08, 2017, 11:01:07 pm »
Whenever I start codeblocks I see the dialog box to set the default compiler (gcc) but I cannot save the settings. Next time I start codeblocks it will ask me again...

I am using codeblocks svn build  rev 11045 Apr  8 2017, 17:13:43 - wx3.0.2 (Linux, unicode) - 64 bit. gcc is installed in /bin:

$ which ar g++ gcc make
/bin/ar
/bin/g++
/bin/gcc
/bin/make
$

Offline oBFusCATed

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Re: cannot set default compiler
« Reply #1 on: April 09, 2017, 12:49:40 am »
Does c::b crash when you close it? Does it have proper permissions to save the default.conf file in ~/.config/codeblocks/default.conf?
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #2 on: April 09, 2017, 01:03:57 am »
No, it does not crash.

$ ls -l .config/codeblocks/default.conf
-rw-r--r-- 1 mer mer 54727 Apr  9 02:02 .config/codeblocks/default.conf
$

I am user "mer".

Offline stahta01

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Re: cannot set default compiler
« Reply #3 on: April 09, 2017, 01:13:55 am »
Did you scroll down on the screen and see if another compiler has the setting problem?

Tim S.
C Programmer working to learn more about C++ and Git.
On Windows 7 64 bit and Windows 10 32 bit.
On Debian Testing, compiling CB Trunk against wxWidgets 3.0.2.
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #4 on: April 09, 2017, 01:37:52 am »
I have just removed clang to see whether the problem remains if only gcc is installed. Nothing changed. On my system cb ist installed in $HOME/IDE. Can this cause troubles?

Offline cbnewbie

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Re: cannot set default compiler
« Reply #5 on: April 09, 2017, 01:59:21 am »
I have just tried to change the compiler settings from inside cb. It seems that cb finds the required executables (gcc, etc.) but it does not set the path. And if I click on "Reset defaults" I get an error message:

ASSERT INFO:
./include/wx/msgdlg.h(138): assert "!(style & wxNO_DEFAULT) || (style & wxNO)" failed in SetMessageDialogStyle(): wxNO_DEFAULT is invalid without wxNO

BACKTRACE:
[1] wxMessageDialog::wxMessageDialog(wxWindow*, wxString const&, wxString const&, long, wxPoint const&)
[2] cbMessageBox(wxString const&, wxString const&, int, wxWindow*, int, int)
[3] CompilerOptionsDlg::OnResetCompilerClick(wxCommandEvent&)
[4] wxAppConsoleBase::CallEventHandler(wxEvtHandler*, wxEventFunctor&, wxEvent&) const
[5] wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&)
[6] wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*)
[7] wxEvtHandler::TryHereOnly(wxEvent&)
[8] wxEvtHandler::ProcessEventLocally(wxEvent&)
[9] wxEvtHandler::ProcessEvent(wxEvent&)
[10] wxWindowBase::TryAfter(wxEvent&)
[11] wxWindowBase::TryAfter(wxEvent&)
[12] wxWindowBase::TryAfter(wxEvent&)
[13] wxEvtHandler::SafelyProcessEvent(wxEvent&)
[14] g_closure_invoke
[15] g_signal_emit_valist
[16] g_signal_emit
[17] g_closure_invoke
[18] g_signal_emit_valist
[19] g_signal_emit
[20] g_closure_invoke
[21] g_signal_emit_valist
[22] g_signal_emit
[23] gtk_propagate_event
[24] gtk_main_do_event
[25] g_main_context_dispatch
[26] g_main_loop_run
[27] gtk_main
[28] wxGUIEventLoop::DoRun()
[29] wxEventLoopBase::Run()
[30] wxDialog::ShowModal()
[31] MainFrame::OnSettingsCompiler(wxCommandEvent&)
[32] wxAppConsoleBase::CallEventHandler(wxEvtHandler*, wxEventFunctor&, wxEvent&) const
[33] wxEvtHandler::ProcessEventIfMatchesId(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&)
[34] wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*)
[35] wxEvtHandler::TryHereOnly(wxEvent&)
[36] wxEvtHandler::DoTryChain(wxEvent&)
[37] wxEvtHandler::ProcessEvent(wxEvent&)
[38] wxWindowBase::TryAfter(wxEvent&)
[39] wxEvtHandler::SafelyProcessEvent(wxEvent&)
[40] wxMenuBase::SendEvent(int, int)
[41] g_closure_invoke
[42] g_signal_emit_valist
[43] g_signal_emit
[44] gtk_widget_activate
[45] gtk_menu_shell_activate_item
[46] g_closure_invoke
[47] g_signal_emit_valist
[48] g_signal_emit
[49] gtk_propagate_event
[50] gtk_main_do_event
[51] g_main_context_dispatch
[52] g_main_loop_run
[53] gtk_main
[54] wxGUIEventLoop::DoRun()
[55] wxEventLoopBase::Run()
[56] wxAppConsoleBase::MainLoop()
[57] CodeBlocksApp::OnRun()
[58] wxEntry(int&, wchar_t**)
[59] main
[60] __libc_start_main
[61] _start /home/iurt/rpmbuild/BUILD/glibc-2.22/csu/../sysdeps/x86_64/start.S:121

Online BlueHazzard

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Re: cannot set default compiler
« Reply #6 on: April 09, 2017, 07:40:11 pm »
does the date/time of the config file change if you close codeblocks?
If you set the path by hand, save and close c::b does this work?

Offline oBFusCATed

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Re: cannot set default compiler
« Reply #7 on: April 09, 2017, 08:52:06 pm »
What happens if you click on the ignore button (don't know exact spelling) on the assert message dialog?
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #8 on: April 09, 2017, 09:44:07 pm »
@BlueHazzard:

Date/time of default.conf changes when I close cb. Is it written every time when I close cb? However, the next time I start cb after explicitely setting the path cb does not remember the setting. It will again tell me that gcc has been detected and shows an empty path field.

$ cp default.conf default.conf.org

... running and closing cb after setting path to /bin ...

$ diff default.conf default.conf.org
878c878
<                                               <![CDATA]>
---
>                                               <![CDATA[fun]]>
883c883
<                                               <![CDATA[subroutine |()\n    \nend subroutine\n]]>
---
>                                               <![CDATA[function |()\n    \nend function\n]]>
895c895
<                                               <![CDATA[fun]]>
---
>                                               <![CDATA]>
900c900
<                                               <![CDATA[function |()\n    \nend function\n]]>
---
>                                               <![CDATA[subroutine |()\n    \nend subroutine\n]]>
1105c1105
<                                               <![CDATA[tday]]>
---
>                                               <![CDATA[guard]]>
1110c1110
<                                               <![CDATA[$TDAY]]>
---
>                                               <![CDATA[#ifndef $(Guard token)\n#define $(Guard token)\n\n|\n\n#endif // $(Guard token)\n]]>                                                                                                                                         
1117c1117                                                                                                                                 
<                                               <![CDATA[guard]]>                                                                         
---                                                                                                                                       
>                                               <![CDATA[tday]]>                                                                           
1122c1122                                                                                                                                 
<                                               <![CDATA[#ifndef $(Guard token)\n#define $(Guard token)\n\n|\n\n#endif // $(Guard token)\n]]>                                                                                                                                         
---                                                                                                                                       
>                                               <![CDATA[$TDAY]]>
1416,1420d1415
<                               <MASTER_PATH>
<                                       <str>
<                                               <![CDATA[/bin]]>
<                                       </str>
<                               </MASTER_PATH>
$


@oBFusCATed:

There are two buttons: Continue and Stop. If I click on Continue the error message will appear again. If I click on Stop cb will crash.

Offline oBFusCATed

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Re: cannot set default compiler
« Reply #9 on: April 10, 2017, 09:45:03 am »
Click the second continue. What happens?
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #10 on: April 10, 2017, 11:28:52 am »
If I click a second time the following happens:

Reset this compiler's settings to the defaults?
buttons: OK | Cancel

Cancel -> nothing happens

OK -> The same error (assert) appears again.
buttons: Stop | Continue

Stop -> cb crashes

Continue -> Reset this compiler's settings to the defaults? Are you REALLY sure?
buttons: OK | Cancel

Cancel -> nothing happens

OK -> Auto-detected installation path of of "GNU GCC compiler ""
buttons: OK


Offline oBFusCATed

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Re: cannot set default compiler
« Reply #11 on: April 10, 2017, 08:40:22 pm »
Is the path correct after you click the final OK button?
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #12 on: April 10, 2017, 09:23:23 pm »
No. The path is still empty. Maybe there are two problems:

GNU gcc is installed in /etc/alternatives/bin with links in /bin and /usr/bin. Does cb have difficulties to extract the path from the link?

The second problem is that default.conf is not correctly updated or not read properly. The changes I add will be ignored the next time cb starts.

Online BlueHazzard

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Re: cannot set default compiler
« Reply #13 on: April 10, 2017, 11:55:52 pm »
GNU gcc is installed in /etc/alternatives/bin with links in /bin and /usr/bin. Does cb have difficulties to extract the path from the link?
does this "alternatives" has some special, non ascii characters?

Offline oBFusCATed

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Re: cannot set default compiler
« Reply #14 on: April 11, 2017, 12:47:56 am »
Do you have a compiler (gcc, g++) in /usr/bin?
Can you run codeblocks under strace to see if default.conf is written and if there is any error for the open/read/write/close calls codeblocks is doing?
If  you don't know how to read the strace log, just save it in a file and paste bin it somewhere, so we can take a look.
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #15 on: April 11, 2017, 01:24:28 am »
This is interesting. I am using Mageia Linux and gcc is installed in /usr (see mageia-gcc.txt). But there are some links between /bin, /usr/bin and /etc/alternatives:

$ cd /etc/alternatives
$ ls -l gcc
lrwxrwxrwx 1 root root 18 Mär 29 21:09 gcc -> /usr/bin/gcc-5.4.0*
$ cd /usr/bin/
$ ls -l gcc
lrwxrwxrwx 1 root root 21 Mär 29 21:09 gcc -> /etc/alternatives/gcc*
$ cd /bin
$ ls -l gcc
lrwxrwxrwx 1 root root 21 Mär 29 21:09 gcc -> /etc/alternatives/gcc*
$

Offline cbnewbie

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Re: cannot set default compiler
« Reply #16 on: April 11, 2017, 01:31:12 am »
I attached two files with the output of strace.

What I did: I started cb, selected the detected compiler as default at start up. When cb was running I tried to auto-detect the compiler because the toolchain path was still empty. After setting the path manually to /usr I closed cb.
« Last Edit: April 11, 2017, 01:38:35 am by cbnewbie »

Offline oBFusCATed

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Re: cannot set default compiler
« Reply #17 on: April 11, 2017, 01:59:53 am »
Please - do the following:
1. start cb under strace
2. open settings -> editor
3. change some settings (switch any checkbox)
4. press ok
5. close cb

Then post the log, but first start cb again and check if the settings is saved...
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #18 on: April 11, 2017, 12:12:03 pm »
This time I did the following:

1. start cb under strace
2. open settings -> editor
3. change some settings (switch any checkbox) -> check "Detect indent style" and "Use TAB character"
4. press ok
5. close cb
6. start cb again -> previously checked options have been saved!

I had to split and compress the strace output file into two parts: cb_strace_03.7z and cb_strace_04.7z

Offline oBFusCATed

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Re: cannot set default compiler
« Reply #19 on: April 12, 2017, 12:37:09 am »
Can you please post a single file? Use a paste bin like service if the forum doesn't allow big attachments!
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Offline oBFusCATed

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Re: cannot set default compiler
« Reply #20 on: April 12, 2017, 12:41:45 am »
It seems that 03 is after 04. Is this the case?
Also it seems that the file is written successfully:
Code: [Select]
stat("/home/mer/.config/codeblocks/default.conf", {st_mode=S_IFREG|0664, st_size=36236, ...}) = 0
lstat("/home/mer/.config/codeblocks/default.conf", {st_mode=S_IFREG|0664, st_size=36236, ...}) = 0
access("/home/mer/.config/codeblocks/default.conf", W_OK) = 0
lstat("/home/mer/.config/codeblocks/default.conf", {st_mode=S_IFREG|0664, st_size=36236, ...}) = 0
open("/home/mer/.config/codeblocks/default.conf.temp", O_WRONLY|O_CREAT|O_TRUNC, 0100664) = 5
write(5, "<?xml version=\"1.0\" encoding=\"UT"..., 47512) = 47512
close(5)                                = 0
rename("/home/mer/.config/codeblocks/default.conf.temp", "/home/mer/.config/codeblocks/default.conf") = 0

Do you have dropbox or something similar setup for your home folder? I've heard complaints of brokenness in such setups.
Does the modification time of the file changes?
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #21 on: April 12, 2017, 02:25:35 pm »
Yes, 04 is first part, 03 is second part. Sorry!

Yes, the file (default.conf) gets a new timestamp and when I open cb again it remebers my choices (selected checkboxes). The only thing which causes problems is that whenever I try to set the toolchain path to a different folder than the "auto-detect folder" cb does not keep that path. It seems to me that cb ignores any valid path and fills in its "auto-detect folder" during start up. As mentioned before gcc is installed in /usr/bin with a link also in /bin. Since /bin is before /usr/bin in my $PATH cb finds /bin/gcc first. Obviously cb accepts the first found gcc as default - which makes sense - but it does not care whether another valid path has already been specified. So, I cannot set another toolchain path for gcc.

No, I do not have dropbox.

Online BlueHazzard

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Re: cannot set default compiler
« Reply #22 on: April 12, 2017, 06:06:38 pm »
Do you hit "Auto detect"?

Offline cbnewbie

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Re: cannot set default compiler
« Reply #23 on: April 12, 2017, 09:00:58 pm »
Yes, I did. But it did not change something. During startup cb always puts the path of the first detected gcc in the edit field of the toolchain path. No matter whether I selected a different valid path or not. Maybe "auto-detect" does always run during startup? Even if it is not neccessary .

Offline oBFusCATed

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Re: cannot set default compiler
« Reply #24 on: April 13, 2017, 08:58:13 am »
Don't know what is going on. :(
You'll have to debug it to find why it opens the dialog every time.

But it is really strange that Mageia devs have decided to place something like gcc in /bin.
Are you really sure it is there? Can you do find /bin -ls?
What happens if you set the path to /usr?
Btw have you seen the note below the path control that states that you have to remove the bin from the path you enter?
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Offline cbnewbie

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Re: cannot set default compiler
« Reply #25 on: April 13, 2017, 12:07:21 pm »
$ ls -l /bin/gcc                                                                                                           
lrwxrwxrwx 1 root root 21 Mär 29 21:09 /bin/gcc -> /etc/alternatives/gcc*                                                                 
$ ls -l /etc/alternatives/gcc                                                                                               
lrwxrwxrwx 1 root root 18 Mär 29 21:09 /etc/alternatives/gcc -> /usr/bin/gcc-5.4.0*                                                       
$ ls -l /usr/bin/gcc-5.4.0                                                                                                 
-rwxr-xr-x 1 root root 895864 Mär 26 22:02 /usr/bin/gcc-5.4.0*                                                                             
$ ls -l /usr/bin/gcc
lrwxrwxrwx 1 root root 21 Mär 29 21:09 /usr/bin/gcc -> /etc/alternatives/gcc*

Yes, I have removed "bin" from the path. But there is already something wrong because "auto-detect" should at least fill in "/" in the toolchain path. However, this field is always empty after startup - even if I select "/usr" and close cb normally.
                         

Offline oBFusCATed

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Re: cannot set default compiler
« Reply #26 on: April 13, 2017, 08:51:03 pm »
Try a night build and if it fails you'll have to debug it yourself or demonstrate how to reproduce it in a more mainstream linux distribution.
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