wrong files in libstdc++.a?

["Mark E." <snowball3@usa.net>]

When I tried to compile/link/execute 21compare.cc from the testsuite 
using the libstdc++.a I compiled for DJGPP, but the linker complained 
about many undefined references. The ones involving locales and 
vector I expected, but it also reported undefined references to the _IO_* 
functions in libio that I wasn't expecting. Here's a sample:

../build/src/.libs/libstdcxx.a(basic_file.o)(.text+0x27):basic_file.cc: 
undefined reference to `_IO_file_init'
../build/src/.libs/libstdcxx.a(basic_file.o)(.text+0x60):basic_file.cc: 
undefined reference to `_IO_do_write'
../build/src/.libs/libstdcxx.a(basic_file.o)(.text+0x169):basic_file.cc: 
undefined reference to `_IO_link_in'

I used 'nm' to try and find those symbols in libstdc++.a, but they weren't 
even listed as undefined. A listing of the files in libstdc++.a generated 
by 'ar' listed below reveals that at some point .lo files are being stored 
instead of the .o files. This doesn't seem right to me. Shouldn't they all 
be .o files in my target?

complex.o
complexf.o
complexl.o
stdexcept.o
ios.o
stdstreams.o
locale.o
localename.o
locale-inst.o
stlinst.o
misc-inst.o
basic_file.o
stringADDCS.o
stringADDPS.o
stringADDSC.o
stringADDSP.o
stringADDSS.o
stringBIST.o
stringBOST.o
stringCHTR.o
stringEQPS.o
stringEQSP.o
stringEQSS.o
stringEXTRA.o
stringGEPS.o
stringGESP.o
stringGESS.o
stringGETLI.o
stringGTPS.o
stringGTSP.o
stringGTSS.o
stringINSER.o
stringLEPS.o
stringLESP.o
stringLESS.o
stringLTPS.o
stringLTSP.o
stringLTSS.o
stringMAIN.o
stringNEPS.o
stringNESP.o
stringNESS.o
stringSCOPY.o
wstringADDCS.o
wstringADDPS.o
wstringADDSC.o
wstringADDSP.o
wstringADDSS.o
wstringBIST.o
wstringBOST.o
wstringCHTR.o
wstringEQPS.o
wstringEQSP.o
wstringEQSS.o
wstringEXTRA.o
wstringGEPS.o
wstringGESP.o
wstringGESS.o
wstringGETLI.o
wstringGTPS.o
wstringGTSP.o
wstringGTSS.o
wstringINSER.o
wstringLEPS.o
wstringLESP.o
wstringLESS.o
wstringLTPS.o
wstringLTSP.o
wstringLTSS.o
wstringMAIN.o
wstringNEPS.o
wstringNESP.o
wstringNESS.o
wstringSCOPY.o
carg.lo
cargf.lo
ccos.lo
ccosf.lo
ccosh.lo
ccoshf.lo
cexp.lo
cexpf.lo
clog.lo
clog10.lo
clog10f.lo
clogf.lo
cpow.lo
cpowf.lo
csin.lo
csinf.lo
csinh.lo
csinhf.lo
csqrt.lo
csqrtf.lo
ctan.lo
ctanf.lo
ctanh.lo
ctanhf.lo
mycabs.lo
mycabsf.lo
signbit.lo
signbitf.lo
dummy.lo
wcslen.lo
wmemchr.lo
wmemcmp.lo
wmemcpy.lo
wmemmove.lo
wmemset.lo
cleanup.lo
filedoalloc.lo
fileops.lo
floatconv.lo
genops.lo
iofclose.lo
iofeof.lo
ioferror.lo
iofgetpos.lo
iofread.lo
iofscanf.lo
iofsetpos.lo
iogetc.lo
iogetdelim.lo
iogetline.lo
ioignore.lo
iopadn.lo
iopopen.lo
ioprims.lo
ioprintf.lo
ioputc.lo
ioseekoff.lo
ioseekpos.lo
iostrerror.lo
ioungetc.lo
iovfprintf.lo
iovfscanf.lo
outfloat.lo
peekc.lo
stdfiles.lo
strops.lo

--- 
Mark Elbrecht, snowball3@usa.net
http://snowball.digitalspace.net/