[Dev-C++] How to find the reason of linker errors???

[Frank W. <F.W...@wi...>]

Hello Dev-Cpp users,

with the upgrade from 4.9.7.0 to 4.9.8.0 I get the following errors
while I try to compile all:

Compiler: Default compiler
Building Makefile:
"C:\work\Projekte\Software\SuchenErsetzen\Makefile.win"
Führt  make clean aus
rm -f fileworker.o  Fileworker.exe
g++.exe -D__DEBUG__ -c fileworker.cpp -o fileworker.o
-I"C:/cygwin/usr/include"  -I"C:/cygwin/usr/include/g++-3"   -ansi -pg
-g3
g++.exe -D__DEBUG__ fileworker.o  -o "Fileworker.exe" -L"C:/cygwin/lib"

fileworker.o: In function `main':
/cygdrive/c/work/Projekte/Software/SuchenErsetzen/fileworker.cpp(.text+0x78):
undefined reference to
`_monstartup'/cygdrive/c/work/Projekte/Software/SuchenErsetzen/fileworker.cpp(.text+0x82):
undefined reference to `mcount'fileworker.o: In function
`__default_alloc_template<false, 0>::deallocate(void *, unsigned
int)':/cygdrive/c/work/Projekte/Software/SuchenErsetzen/C:/cygwin/usr/include/g++-3/streambuf.h(.basic_string<char,
string_char_traits<char>, __default_alloc_template<false, 0>
>::Rep::text$frob_size(unsigned int)+0xc): undefined reference to
`mcount'/cygdrive/c/work/Projekte/Software/SuchenErsetzen/C:/cygwin/usr/include/g++-3/streambuf.h(.__malloc_alloc_template<0>::text$_S_oom_malloc(unsigned
int)+0xd): undefined reference to `mcount'
/cygdrive/c/work/Projekte/Software/SuchenErsetzen/C:/cygwin/usr/include/g++-3/streambuf.h(.__malloc_alloc_template<0>::text$allocate(unsigned
int)+0xd): undefined reference to
`mcount'/cygdrive/c/work/Projekte/Software/SuchenErsetzen/C:/cygwin/usr/include/g++-3/streambuf.h(.__default_alloc_template<false,
0>::text$_S_round_up(unsigned int)+0xc): undefined reference to
`mcount'fileworker.o(.__default_alloc_template<false,
0>::text$_S_chunk_alloc(unsigned int, int
&)+0xd):/cygdrive/c/work/Projekte/Software/SuchenErsetzen/C:/cygwin/usr/include/g++-3/streambuf.h:
more undefined references to `mcount' follow
collect2: ld returned 1 exit status
make.exe: *** [Fileworker.exe] Error 1
Ausführung beendet

In parallel I compiled the same projekt with version 4.9.7.0 and get no
errors.
The directory settings for the compiler and the linker in both Dev-Cpp
versions are equal.

What had been changed in the new version and what can I do to locate
the problem?

I hope somebody can help me.

Thanks in advance

Frank