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Problem linking with an import library (.lib) file:
- From: Mark Rivers <rivers at cars dot uchicago dot edu>
- To: "'cygwin at cygwin dot com'" <cygwin at cygwin dot com>
- Date: Wed, 13 May 2015 22:41:07 +0000
- Subject: Problem linking with an import library (.lib) file:
- Authentication-results: sourceware.org; auth=none
- References: <70AE7462E7AD054C89DCBA45343D499A65860E12 at CARSMAIL2 dot CARS dot APS dot ANL dot GOV>
Folks,
I am having trouble linking with a normal Windows import library file when creating a DLL on Cygwin. These same import libraries worked fine when creating static Cygwin executables with older versions of Cygwin.
The error is: "error adding symbols: File in wrong format".
This is an example of the error (I have reformatted the long g++ command onto multiple lines to make it more legible):
$ make
make -C O.cygwin-x86 -f ../Makefile TOP=../../.. \
T_A=cygwin-x86 install
make[1]: Entering directory '/cygdrive/j/epics/devel/dxp/dxpApp/handelSrc/O.cygwin-x86'
g++ -o handel.dll -shared -Wl,--out-implib,handel.lib -L/cygdrive/j/epics/devel/dxp/lib/cygwin-x86
-L/cygdrive/h/epics/base-3.14.12.5/lib/cygwin-x86 -m32
xerxes.o xerxes_log.o md_log.o handel.o fdd.o psl.o handel_dbg.o handel_detchan.o handel_dyn_default.o
handel_dyn_detector.o handel_dyn_firmware.o handel_dyn_module.o handel_file.o handel_log.o handel_memdbg_win32.o
handel_run_control.o handel_run_params.o handel_sort.o handel_system.o handel_xerxes.o xia_assert.o xia_file.o
xia_mem.o xia_mem_point.o saturn.o saturn_psl.o xmap.o xmap_psl.o mercury.o mercury_psl.o xia_epp.o xia_plx.o
xia_usb.o xia_usb2.o md_win32.o
-lrecIoc -lsoftDevIoc -lmiscIoc -lrsrvIoc -ldbtoolsIoc -lasIoc -ldbIoc -lregistryIoc -ldbStaticIoc -lca -lCom -lDLPORTIO -lPlxApi -lsetupapi -lUser32 -lpthread -lm
/cygdrive/j/epics/devel/dxp/lib/cygwin-x86/PlxApi.lib: error adding symbols: File in wrong format
collect2: error: ld returned 1 exit status
/corvette/usr/local/epics/base-3.14.12.5/configure/RULES_BUILD:300: recipe for target 'handel.dll' failed
make[1]: *** [handel.dll] Error 1
make[1]: Leaving directory '/cygdrive/j/epics/devel/dxp/dxpApp/handelSrc/O.cygwin-x86'
/corvette/usr/local/epics/base-3.14.12.5/configure/RULES_ARCHS:64: recipe for target 'install.cygwin-x86' failed
make: *** [install.cygwin-x86] Error 2
So it is complaining that the library PlxApi.lib is not in the correct format. However, this is definitely a valid Windows import library file.
Thanks,
Mark Rivers
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