Porting from Solaris to Linux RH 7.3

[a9028033@unet.univie.ac.at]

Hi! I'm trying to compile a c++ project already running under Solaris
with the g++ 3.2.1 compiler.

Without to remove existing object files from the Solaris Workshop C++
compiler i get the following result:

$>make -f mymakegnu1 HCSmain
g++ -g -v    HCSmain.cc   -o HCSmain
Reading specs from /usr/gnu/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/specs
Configured with: ./configure --prefix=/usr/gnu
Thread model: posix
gcc version 3.2.1
 /usr/gnu/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/cc1plus -v -D__GNUC__=3 -D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=1 -D__GXX_ABI_VERSION=102 -D__ELF__ -Dunix -D__gnu_linux__ -Dlinux -D__ELF__ -D__unix__ -D__gnu_linux__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ HCSmain.cc -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -quiet -dumpbase HCSmain.cc -g -version -o /tmp/ccdk1ABL.s
GNU CPP version 3.2.1 (cpplib) (i386 Linux/ELF)
GNU C++ version 3.2.1 (i686-pc-linux-gnu)
        compiled by GNU C version 2.96 20000731 (Red Hat Linux 7.3 2.96-110).
ignoring nonexistent directory "/usr/gnu/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/gnu/include/c++/3.2.1
 /usr/gnu/include/c++/3.2.1/i686-pc-linux-gnu
 /usr/gnu/include/c++/3.2.1/backward
 /usr/local/include
 /usr/gnu/include
 /usr/gnu/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/include
 /usr/include
End of search list.
 as -V -Qy -o /tmp/cc4fuNqo.o /tmp/ccdk1ABL.s
GNU assembler version 2.11.93.0.2 (i386-redhat-linux) using BFD version 2.11.93.0.2 20020207
 /usr/gnu/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/collect2 -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o HCSmain /usr/lib/crt1.o /usr/lib/crti.o /usr/gnu/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/crtbegin.o -L/usr/gnu/lib/gcc-lib/i686-pc-linux-gnu/3.2.1 -L/usr/gnu/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/../../.. /tmp/cc4fuNqo.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /usr/gnu/lib/gcc-lib/i686-pc-linux-gnu/3.2.1/crtend.o /usr/lib/crtn.o
/usr/lib/crt1.o: In function `_start':
/usr/lib/crt1.o(.text+0x18): undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [HCSmain] Error 1

Removing the object files created by Solaris it gets out a huge number
of warnings and errors, this time related to the source code.

Can somebody give me an idea what the problem can be?

Regards, Iavor.