Cannot open libc.lib

TobbeSweden · 24th January 2009, 20:56

I'm trying to compile a plugin using Visual Studio 2008, but I get the following error message:

LINK : fatal error LNK1104: cannot open file 'LIBC.lib'

How do I solve this? I don't see libc.lib included anywhere, so I don't even know why it's looking for it...

kichik · 24th January 2009, 21:01

2008 is not supported by SCons. See some recent threads on the subject.

TobbeSweden · 25th January 2009, 07:14

I know. I'm not using SCons. I'm trying to compile a third-party plugin.

kichik · 25th January 2009, 22:04

If you're importing a dsp file, remove the libc reference and use the flags in C/C++ properties page (/MT, /MD, etc.).

TobbeSweden · 25th January 2009, 23:55

I converted/imported the ExDll project from v2.42. I searched through all files, libc.lib is not included anywhere. I tried both /MT and /MD, both give the same result. (Cannot open libc.lib)

I think it's the provided pluginapi.lib file that depends on libc.lib. Is there anything I can do about that?

jimpark · 26th January 2009, 01:04

You do not need libc.lib with VS 2008. It is implied and links without an explicit libc.lib reference. Remove it from the project.

TobbeSweden · 26th January 2009, 03:32

From what project? My project (ExDll) does not include libc.lib anywhere.

jimpark · 29th January 2009, 21:56

Are you compiling via a VS 2008 project or via Scons?

TobbeSweden · 29th January 2009, 21:59

VS 2008 project

kichik · 30th January 2009, 16:35

The plug-in library is requesting libc.lib for an unknown reason. I will check it out. You should open a bug report for it.

TobbeSweden · 30th January 2009, 19:11

Reported.

https://sourceforge.net/tracker/inde...49&atid=373085

kichik · 31st January 2009, 15:06

I've looked a bit more into it and all files contain that reference. It's the /NODEFAULTLIB flag that cancels them. You should use that flag with VS2008 too and it should work. I don't know how it's called in the GUI but it should be under Linker in Project Settings. Maybe Ignore Default Libraries or something similar.

TobbeSweden · 31st January 2009, 16:25

This is the output with /NODEFAULTLIB turned on:

code:
1>------ Build started: Project: exdll, Configuration: Debug Win32 ------

1>Compiling...

1>exdll.c

1>Compiling manifest to resources...

1>Microsoft (R) Windows (R) Resource Compiler Version 6.0.5724.0

1>Copyright (C) Microsoft Corporation.  All rights reserved.

1>Linking...

1>   Creating library .\Debug/exdll.lib and object .\Debug/exdll.exp

1>exdll.obj : error LNK2019: unresolved external symbol ___security_cookie referenced in function _myFunction

1>exdll.obj : error LNK2019: unresolved external symbol @__security_check_cookie@4 referenced in function _myFunction

1>exdll.obj : error LNK2019: unresolved external symbol @_RTC_CheckStackVars@8 referenced in function _myFunction

1>exdll.obj : error LNK2019: unresolved external symbol __RTC_CheckEsp referenced in function _myFunction

1>exdll.obj : error LNK2001: unresolved external symbol __RTC_Shutdown

1>exdll.obj : error LNK2001: unresolved external symbol __RTC_InitBase

1>LINK : error LNK2001: unresolved external symbol __DllMainCRTStartup@12

1>.\Debug/exdll.dll : fatal error LNK1120: 7 unresolved externals

1>Build log was saved at "file://c:\Program\NSIS\Examples\Plugin\Debug\BuildLog.htm"

1>exdll - 8 error(s), 0 warning(s)

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Anders · 31st January 2009, 17:11

specify DllMain as the entry point

kichik · 31st January 2009, 17:29

And get rid of all the safety checks.

TobbeSweden · 1st February 2009, 08:09

So I manually defined the entry point and disabled "Buffer Security Check" (/GS-).

I'm now down to the following error messages:

code:
1>------ Build started: Project: exdll, Configuration: Debug Win32 ------

1>Compiling...

1>exdll.c

1>Linking...

1>   Creating library .\Debug/exdll.lib and object .\Debug/exdll.exp

1>exdll.obj : error LNK2019: unresolved external symbol @_RTC_CheckStackVars@8 referenced in function _myFunction

1>exdll.obj : error LNK2019: unresolved external symbol __RTC_CheckEsp referenced in function _myFunction

1>exdll.obj : error LNK2001: unresolved external symbol __RTC_Shutdown

1>exdll.obj : error LNK2001: unresolved external symbol __RTC_InitBase

1>.\Debug/exdll.dll : fatal error LNK1120: 4 unresolved externals

1>Build log was saved at "file://c:\Program\NSIS\Examples\Plugin\Debug\BuildLog.htm"

1>exdll - 5 error(s), 0 warning(s)

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

TobbeSweden · 1st February 2009, 08:13

Got rid of the last errors by setting "Basic Runtime Checks" to "Default" in the project properties.

kichik · 1st February 2009, 10:37

Could you post the resulting vcproj/sln so I can include it?

TobbeSweden · 1st February 2009, 10:57

Most certainly

kichik · 1st February 2009, 11:06

Thanks.

24th January 2009, 20:56	#1
TobbeSweden Senior Member Join Date: Oct 2006 Posts: 106	Cannot open libc.lib I'm trying to compile a plugin using Visual Studio 2008, but I get the following error message: LINK : fatal error LNK1104: cannot open file 'LIBC.lib' How do I solve this? I don't see libc.lib included anywhere, so I don't even know why it's looking for it...

24th January 2009, 21:01	#2
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	2008 is not supported by SCons. See some recent threads on the subject. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

25th January 2009, 22:04	#4
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	If you're importing a dsp file, remove the libc reference and use the flags in C/C++ properties page (/MT, /MD, etc.). NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

26th January 2009, 01:04	#6
jimpark Senior Member Join Date: Sep 2007 Posts: 204	You do not need libc.lib with VS 2008. It is implied and links without an explicit libc.lib reference. Remove it from the project. Unicode NSIS advocate -- http://www.scratchpaper.com for latest build and source.

29th January 2009, 21:56	#8
jimpark Senior Member Join Date: Sep 2007 Posts: 204	Are you compiling via a VS 2008 project or via Scons? Unicode NSIS advocate -- http://www.scratchpaper.com for latest build and source.

25th January 2009, 07:14	#3
TobbeSweden Senior Member Join Date: Oct 2006 Posts: 106	I know. I'm not using SCons. I'm trying to compile a third-party plugin.

25th January 2009, 23:55	#5
TobbeSweden Senior Member Join Date: Oct 2006 Posts: 106	I converted/imported the ExDll project from v2.42. I searched through all files, libc.lib is not included anywhere. I tried both /MT and /MD, both give the same result. (Cannot open libc.lib) I think it's the provided pluginapi.lib file that depends on libc.lib. Is there anything I can do about that?

26th January 2009, 03:32	#7
TobbeSweden Senior Member Join Date: Oct 2006 Posts: 106	From what project? My project (ExDll) does not include libc.lib anywhere.

29th January 2009, 21:59	#9
TobbeSweden Senior Member Join Date: Oct 2006 Posts: 106	VS 2008 project

30th January 2009, 16:35	#10
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	The plug-in library is requesting libc.lib for an unknown reason. I will check it out. You should open a bug report for it. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

30th January 2009, 19:11	#11
TobbeSweden Senior Member Join Date: Oct 2006 Posts: 106	Reported. https://sourceforge.net/tracker/inde...49&atid=373085

31st January 2009, 15:06	#12
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	I've looked a bit more into it and all files contain that reference. It's the /NODEFAULTLIB flag that cancels them. You should use that flag with VS2008 too and it should work. I don't know how it's called in the GUI but it should be under Linker in Project Settings. Maybe Ignore Default Libraries or something similar. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

31st January 2009, 17:11	#14
Anders Moderator Join Date: Jun 2002 Location: ${NSISDIR} Posts: 5,442	specify DllMain as the entry point IntOp $PostCount $PostCount + 1

31st January 2009, 17:29	#15
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	And get rid of all the safety checks. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

1st February 2009, 08:13	#17
TobbeSweden Senior Member Join Date: Oct 2006 Posts: 106	Got rid of the last errors by setting "Basic Runtime Checks" to "Default" in the project properties.

1st February 2009, 10:37	#18
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	Could you post the resulting vcproj/sln so I can include it? NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

1st February 2009, 11:06	#20
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,343	Thanks. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

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