Search code examples
cmakefilelinker-errorsnmake

C: LINK.EXE fails from Makefile but not from the Command line

When I attempt to link from a makefile I get the following error:

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

Makefile Execution:

C:\Users\snmcdonald\Desktop\winMake2\winMake2>nmake "_DEBUG=" /f win2.mk build

Microsoft (R) Program Maintenance Utility Version 10.00.30319.01
Copyright (C) Microsoft Corporation.  All rights reserved.

        cl /c /ZI /Fo"Debug\\" /Fe"Debug\\" main.c
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.30319.01 for 80x86
Copyright (C) Microsoft Corporation.  All rights reserved.

main.c
        cl /c /ZI /Fo"Debug\\" /Fe"Debug\\" lib.c
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.30319.01 for 80x86
Copyright (C) Microsoft Corporation.  All rights reserved.

lib.c
        lib Debug\lib.obj /out:Debug\lib.lib
Microsoft (R) Library Manager Version 10.00.30319.01
Copyright (C) Microsoft Corporation.  All rights reserved.

        link Debug\main.obj Debug\lib.lib /out:Debug\main.exe
Microsoft (R) Incremental Linker Version 10.00.30319.01
Copyright (C) Microsoft Corporation.  All rights reserved.

main.obj : warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:ICF' specif
ication
LINK : fatal error LNK1104: cannot open file 'LIBCMT.lib'
NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio 10.0\VC\BI
N\link.EXE"' : return code '0x450'
Stop.

However, if I rerun the exact same line that failed and link from the console I get a successful build. I am using the exact same lib and obj that were produced from my make file.

Console Execution:

C:\Users\snmcdonald\Desktop\winMake2\winMake2>link Debug\main.obj Debug\lib.lib /o
ut:Debug\main.exe
Microsoft (R) Incremental Linker Version 10.00.30319.01
Copyright (C) Microsoft Corporation.  All rights reserved.

main.obj : warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:ICF' specif
ication

C:\Users\SHANEM~1\Desktop\winMake2\winMake2>debug\main.exe
print from lib

I have included my makefile for reference.

Makefile

!ifdef _DEBUG
CC = cl
CFLAGS = /c /ZI
FILES = *.c 
OUT = /Fo"Debug\\" /Fe"Debug\\"
LINKOUT = /out:Debug
DIR = Debug
!else
CC = cl
CFLAGS = /O2
FILES = *.c 
OUT = /Fo"Release\\" /Fe"Release\\"
LINKOUT = /out:Release
DIR = Release
!endif

LIB = lib
LINK = link

RM = del
RMFLAGS = *.ojb *.exe 2>NUL

build: main.exe

clean:
    $(RM) $(RMFLAGS)

rebuild: clean build

main.exe: main.obj lib.lib
    $(LINK) $(DIR)\main.obj $(DIR)\lib.lib $(LINKOUT)\main.exe

lib.lib: lib.obj
    $(LIB) $(DIR)\lib.obj $(LINKOUT)\lib.lib

main.obj: 
    $(CC) $(CFLAGS) $(OUT) main.c

lib.obj:
    $(CC) $(CFLAGS) $(OUT) lib.c

Testing

I have tested this on both Visual C version 9 and version 10. I am confused why it would fail on my makefile but run successfully when manually entered on the command line.

Solution:

nmake /E /f win2.mk build

/E - overrides macro vars with environmental paths.

Solution

  • LIB = lib

    That screws up the LIB environment variable. Yes, /E will fix it but your next project that actually needs lib.exe is going to fail. Pick another name, win32.mak uses "implib".