build error for mips crossgcc

["Arthur" <mars_arthur at 0451 dot com>]

hi
I'm successfully build mips-ecoff crossgcc under cygwin
These is my steps:
export TARGET=mips-ecoff
export PREFIX=/opt/$TARGET
export PATH=$PATH:$PREFIX/bin

Binutils:
configure --target=$TARGET --prefix=$PREFIX
make all install

Bootstrap GCC
To gcc top level source directory and make link to the newlib subdirectories
cd <path to gcc source>/gcc-2.95.3
ln -s <path to newlib source>/newlib-1.9.0/newlib newlib
ln -s <path to newlib source>/newlib-1.9.0/libgloss libgloss

configure --target=$TARGET --prefix=$PREFIX --with-gnu-as --with-gnu-ld \
     --without-headers --with-newlib --enable-languages=c
make all install

Newlib
configure --target=$TARGET --prefix=$PREFIX
make all install

Full GCC
configure --target=$TARGET --prefix=$PREFIX --with-gnu-as --with-gnu-ld \
 --enable-languages=c,c++
make all install

OK,next I build my test program like this
test.c

#include <stdio.h>
#include <math.h>
#include <string.h>

int main()
{
 char szTmp[1024],szDes[1024];
 double k=1.333;

 k=log(k);

 strcpy(szTmp,"Input the year that your birth:");
 memcpy(szDes,szTmp,sizeof(char));
 sprintf(szDes,"%s,%f",szTmp,k);
 return 1;
}

mips-ecoff-gcc -mcpu=r3000 -Wall -O2 -msoft-float -EB -Ttext
00400000 -otest.exe test.c

Generate error like this :

test_ecoff.c(.text+0x60): undefined reference to `log'

/opt/mips-ecoff/mips-ecoff/lib/libc.a(makebuf.o): In function `__smakebuf':
/usr/build/gcc-full/mips-ecoff/newlib/libc/stdio/../../../../../gcc-2.95.3/n
ewlib/libc/stdio/makebuf.c:93: undefined reference to `isatty'
/opt/mips-ecoff/mips-ecoff/lib/libc.a(readr.o): In function `_read_r':
/usr/build/gcc-full/mips-ecoff/newlib/libc/reent/../../../../../gcc-2.95.3/n
ewlib/libc/reent/readr.c:58: undefined reference to `read'
/opt/mips-ecoff/mips-ecoff/lib/libc.a(lseekr.o): In function `_lseek_r':
/usr/build/gcc-full/mips-ecoff/newlib/libc/reent/../../../../../gcc-2.95.3/n
ewlib/libc/reent/lseekr.c:58: undefined reference to `lseek'
/opt/mips-ecoff/mips-ecoff/lib/libc.a(writer.o): In function `_write_r':
/usr/build/gcc-full/mips-ecoff/newlib/libc/reent/../../../../../gcc-2.95.3/n
ewlib/libc/reent/writer.c:58: undefined reference to `write'
/opt/mips-ecoff/mips-ecoff/lib/libc.a(closer.o): In function `_close_r':
/usr/build/gcc-full/mips-ecoff/newlib/libc/reent/../../../../../gcc-2.95.3/n
ewlib/libc/reent/closer.c:53: undefined reference to `close'
/opt/mips-ecoff/mips-ecoff/lib/libc.a(sbrkr.o): In function `_sbrk_r':
/usr/build/gcc-full/mips-ecoff/newlib/libc/reent/../../../../../gcc-2.95.3/n
ewlib/libc/reent/sbrkr.c:61: undefined reference to `sbrk'
/opt/mips-ecoff/mips-ecoff/lib/libc.a(fstatr.o): In function `_fstat_r':
/usr/build/gcc-full/mips-ecoff/newlib/libc/reent/../../../../../gcc-2.95.3/n
ewlib/libc/reent/fstatr.c:62: undefined reference to `fstat'

What's the matter?


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