Re: [Dev-C++] errors when linking to a .lib

[Per W. <pw...@ia...>]

Sorry, but that won't help. Converting a library from .lib to .a doesn't
change the fact that the library contains references to the Visual C++
runtime library while GCC has it's own RTL.

I don't think there is anything you can do to make use of this library
with DevC++, less than to create a stub program using VC++ that reexports
the functions.

/Per W

On Thu, 15 Apr 2004, Alexander Streit wrote:

> Joshua,
>
> The reimp tool does exactly what you need. You get it as part of the
> "MinGW Utilities".
> Download it from here:
> http://prdownloads.sf.net/mingw/mingw-utils-0.3.tar.gz?download
>
> it will turn a XXX.lib to a libXXX.a file, ready to be used with Dev-Cpp.
>
> Stewart, Joshua wrote:
>
> >I am trying to link a C program with a .lib library file that was provid=
ed to me by a third party.
> >All I have is a .lib, header files and an example program with MSVC proj=
ect files. I want to try and use DevC++ to link the sample provided but I a=
m having some trouble.
> >
> >When trying to use DevC++ to link I get the following errors.
> >
> >lib/Sigmalib.lib(./Debug/Sigmalib.obj)(.text+0xb1): In function `c_initf=
iles':
> >c:\sig16dev\misc\c:20: undefined reference to `_chkesp'
> >fu000005.o(.idata$3+0xc): undefined reference to `libmsvcrt_a_iname'
> >nmth000000.o(.idata$4+0x0): undefined reference to `_nm___iob'
> >
> >I think this is because the lib was built in MS Visual C++ and there are=
 functions in the library (eg initfiles) that are making references to weir=
d MS things. The people that provide the lib also provided me with a MSVC w=
orkspace/project, which I am able to use my friends copy of MSVC to compile=
 and link without hassel.
> >
> >I tried to import the MSVC dsp file using the DevC++ import feature, but=
 that also failed to build, with the same errors.
> >
> >i read somewhere in the archives that i might need to use reimp to conve=
rt the .lib to an .a file?
> >would this help? how would I do this? Could I then put in my own dummy c=
opy of _chkesp and ar myself a new library?
> >
> >If anyone has seen this thing before when trying to port other MSVC libr=
aries or trying to use third party libs maybe you can help. Or perhaps I am=
 missing a simple linker switch (I am new to DevC++). Any assistance is gre=
atly appreciated.
> >
> >Attached is a copy of the link output.
> >
> >Josh Stewart.
> >
> >
> >------------------------------------------------------------------------
> >
> >Compiler: Default compiler
> >Building Makefile: "C:\logistics\testbuild1\Makefile.win"
> >Executing  make...
> >make.exe -f "C:\logistics\testbuild1\Makefile.win" all
> >gcc.exe -D__DEBUG__ JOSHspares1.o  -o "Simu1testbuild.exe" -L"C:/Dev-Cpp=
/lib" -L"C:/logistics/testbuild1/lib" -L"C:/Dev-Cpp/lib" -lkernel32 -luser3=
2 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -lu=
uid -lodbc32 -lodbccp32 --verbose lib/Sigmalib.lib  Reading specs from C:/D=
ev-Cpp/Bin/../lib/gcc-lib/mingw32/3.2/specs
> >Configured with: ../gcc/configure --with-gcc --with-gnu-ld --with-gnu-as=
 --host=3Dmingw32 --target=3Dmingw32 --prefix=3D/mingw --enable-threads --d=
isable-nls --enable-languages=3Df77,c++,objc,ada --disable-win32-registry -=
-disable-shared
> >Thread model: win32 gcc version 3.2 (mingw special 20020817-1)
> > C:\Dev-Cpp\Bin\..\lib\gcc-lib\mingw32\3.2\..\..\..\..\mingw32\bin\ld.ex=
e -Bdynamic -o Simu1testbuild.exe C:/Dev-Cpp/Bin/../lib/gcc-lib/mingw32/3.2=
/../../../crt2.o C:/Dev-Cpp/Bin/../lib/gcc-lib/mingw32/3.2/crtbegin.o -LC:/=
Dev-Cpp/lib -LC:/logistics/testbuild1/lib -LC:/Dev-Cpp/lib -LC:/Dev-Cpp/Bin=
/../lib/gcc-lib/mingw32/3.2 -LC:/Dev-Cpp/Bin/../lib/gcc-lib -LC:/Dev-Cpp/Bi=
n/../lib/gcc-lib/mingw32/3.2/../../../../mingw32/lib -LC:/Dev-Cpp/Bin/../li=
b/gcc-lib/mingw32/3.2/../../.. JOSHspares1.o -lkernel32 -luser32 -lgdi32 -l=
winspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -luuid -lodbc32=
 -lodbccp32 lib/Sigmalib.lib -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt =
-luser32 -lkernel32 -ladvapi32 -lshell32 -lmingw32 -lgcc -lmoldname -lmingw=
ex -lmsvcrt C:/Dev-Cpp/Bin/../lib/gcc-lib/mingw32/3.2/crtend.o Info: resolv=
ing __iob by linking to __imp___iob (auto-import) lib/Sigmalib.lib(./Debug/=
Sigmalib.obj)(.debug$S+0x542):C:\Sig16dev\MISC\C: variable '_iob' can't be =
auto-imported. Please read the documentation for ld's --enable-auto-import =
for details.
> >lib/Sigmalib.lib(./Debug/Sigmalib.obj)(.text+0x427): In function `c_init=
lk':
> >c:\sig16dev\misc\c:123: undefined reference to `_chkesp'
> >lib/Sigmalib.lib(./Debug/Sigmalib.obj)(.text+0xb1): In function `c_initf=
iles':
> >c:\sig16dev\misc\c:20: undefined reference to `_chkesp'
> >lib/Sigmalib.lib(./Debug/Sigmalib.obj)(.text+0x213): In function `c_disk=
_in':
> >c:\sig16dev\misc\c:75: undefined reference to `_chkesp'
> >lib/Sigmalib.lib(./Debug/Sigmalib.obj)(.text+0x66): In function `c_askme=
':
> >c:\sig16dev\misc\c:6: undefined reference to `_chkesp'
> >lib/Sigmalib.lib(./Debug/Sigmalib.obj)(.text+0x3e2): In function `c_file=
':
> >c:\sig16dev\misc\c:123: undefined reference to `_chkesp' lib/Sigmalib.li=
b(./Debug/Sigmalib.obj)(.text+0x3dd):c:\sig16dev\misc\c:147: more undefined=
 references to `_chkesp' follow
> >fu000001.o(.idata$3+0xc): undefined reference to `libmsvcrt_a_iname'
> >fu000002.o(.idata$3+0xc): undefined reference to `libmsvcrt_a_iname'
> >fu000003.o(.idata$3+0xc): undefined reference to `libmsvcrt_a_iname'
> >fu000004.o(.idata$3+0xc): undefined reference to `libmsvcrt_a_iname'
> >fu000005.o(.idata$3+0xc): undefined reference to `libmsvcrt_a_iname'
> >nmth000000.o(.idata$4+0x0): undefined reference to `_nm___iob' make.exe:=
 *** [Simu1testbuild.exe] Error 1 Execution terminated
> >
> >
> >------------------------------------------------------------------------
> >
> >"This email (including all attachments) is for the use of the named addr=
essee only. You must not use, disclose, or copy any part of this email if y=
ou are not the intended recipient. No rights of privacy, confidentiality, c=
opyright or privilege are waived or lost by any mistransmission. If you rec=
eive this email in error, please immediately delete it from your system, de=
stroy all copies, and notify the sender. Emails may be interfered with, may=
 contain computer viruses or other defects, and may cause damage to your sy=
stem. Raytheon gives no warranty in relation to the effect of this email on=
 your system, or the accuracy or completeness of its contents."
> >
> >
>
> --
> Alexander Streit
>
> PhD