Building Mingw console applications under Cygwin

[ajr at lme-da dot com]

Hi,

I seem to be missing a point somewhere I think. I'm trying to build a
native Windoze console application using gcc under the Cygwin
environment. I am using the following make options:

CXXFLAGS += -mno-cygwin
CPPFLAGS += -I/usr/include/g++-3
LDFLAGS += -v -mno-cygwin
LOADLIBES += -lstdc++ -lwsock32

This gives me the following command lines and error messages when I
compile:

Building MINGWdebug version of
/cygdrive/d/software/stlplus/test/TCP/client
make -C ../../../../stlplus/source
Building MINGWdebug version of /cygdrive/d/software/stlplus/source
make[1]: Entering directory `/cygdrive/d/software/stlplus/source'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/cygdrive/d/software/stlplus/source'
gcc  -v -mno-cygwin MINGWdebug/libTCP.a
../../../../stlplus/source/MINGWdebug/libstlplus.a  -lstdc++ -lwsock32
-o client
Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/specs
gcc version 2.95.3-5 (cygwin special)
 /usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/collect2.exe -Bdynamic
--dll-search-prefix=cyg -o client.exe /usr/lib/mingw/crt2.o
-L/usr/lib/mingw -L/usr/lib/w32api
-L/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5 MINGWdebug/libTCP.a
../../../../stlplus/source/MINGWdebug/libstlplus.a -lstdc++ -lwsock32
-lmingw32 -lgcc -lmoldname -lmsvcrt -lmingw32 -luser32 -lkernel32
-ladvapi32 -lshell32 -lmingw32 -lgcc -lmoldname -lmsvcrt
/usr/lib/libstdc++.a(iostream.o)(.text+0x148):iostream.cc: undefined
reference to `_imp___ctype_'
/usr/lib/libstdc++.a(iostream.o)(.text+0x515):iostream.cc: undefined
reference to `_imp___ctype_'
/usr/lib/libstdc++.a(iostream.o)(.text+0x17b3):iostream.cc: undefined
reference to `_impure_ptr'
/usr/lib/libstdc++.a(iostream.o)(.text+0x17c4):iostream.cc: undefined
reference to `_impure_ptr'
/usr/lib/libstdc++.a(stdstrbufs.o)(.text+0x4e):stdstrbufs.cc: undefined
reference to `_impure_ptr'
/usr/lib/libstdc++.a(streambuf.o)(.text+0x3e3):streambuf.cc: undefined
reference to `__errno'
/usr/lib/libstdc++.a(fileops.o)(.text+0x19d):fileops.c: undefined
reference to `__errno'
/usr/lib/libstdc++.a(fileops.o)(.text+0x210):fileops.c: undefined
reference to `__errno'
/usr/lib/libstdc++.a(fileops.o)(.text+0x26d):fileops.c: undefined
reference to `__errno'
/usr/lib/libstdc++.a(fileops.o)(.text+0x398):fileops.c: undefined
reference to `__errno'
/usr/lib/libstdc++.a(fileops.o)(.text+0x45d):fileops.c: more undefined
references to `__errno' follow
/usr/lib/libstdc++.a(floatconv.o)(.text+0x1287):floatconv.c: undefined
reference to `_imp____infinity'
/usr/lib/libstdc++.a(floatconv.o)(.text+0x13e5):floatconv.c: undefined
reference to `__errno'
/usr/lib/libstdc++.a(iovfscanf.o)(.text+0x61):iovfscanf.c: undefined
reference to `_imp___ctype_'
/usr/lib/libstdc++.a(iovfscanf.o)(.text+0x8d):iovfscanf.c: undefined
reference to `_imp___ctype_'
/usr/lib/libstdc++.a(iovfscanf.o)(.text+0x55c):iovfscanf.c: undefined
reference to `_imp___ctype_'
/usr/lib/libstdc++.a(iovfscanf.o)(.text+0x5ac):iovfscanf.c: undefined
reference to `_imp___ctype_'
/usr/lib/libstdc++.a(iovfscanf.o)(.text+0x823):iovfscanf.c: undefined
reference to `_imp___ctype_'
/usr/lib/libstdc++.a(iovfscanf.o)(.text+0x87d):iovfscanf.c: more
undefined references to `_imp___ctype_' follow
collect2: ld returned 1 exit status
make: *** [client] Error 1

I have found definitions for __errno in libmsvcrt.a (so why is that
failing?) but I cannot find any definitions of _imp___ctype_ in any of
the libraries in /lib/mingw.

Some version numbers in case they help:

cygwin-1.3.3-2.tar.bz2
gcc-2.95.3-5.tar.bz2
mingw-runtime-1.1-1.tar.bz2

Can anyone suggest what I'm doing wrong here?

Andy
----------------------------------------------------------------------
Andy Rushton, Senior Development Engineer
LME Design Automation Ltd
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