cross compiling 2.95.1 failed
Urs Thuermann
urs@isnogud.escape.de
Thu Sep 30 23:25:00 GMT 1999
I've tried to install gcc-2.95.1 as a cross compiler on my i686-linux
box that should generate code for the m68k-linux target.
After installing the binutils for cross development successfully (as
and ld work), I did
$ ../gcc-2.95.1/configure --prefix=/home/urs/cross-gcc \
--target=m68k-linux --enable-languages=c,c++
$ make
When compiling libgcc2.a this fails with:
do \
echo ${name}; \
/home/urs/cross/build-gcc/gcc/xgcc -B/home/urs/cross/build-gcc/gcc/ -B/home/urs/cross/m68k-linux/bin/ -I/home/urs/cross/m68k-linux/include -O2 -DCROSS_COMPILE -DIN_GCC -g -O2 -I./include -fPIC -g1 -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I../../gcc-2.95.1/gcc -I../../gcc-2.95.1/gcc/config -I../../gcc-2.95.1/gcc/../include -c -DL${name} \
../../gcc-2.95.1/gcc/libgcc2.c -o ${name}.o; \
if [ $? -eq 0 ] ; then true; else exit 1; fi; \
m68k-linux-ar rc tmplibgcc2.a ${name}.o; \
rm -f ${name}.o; \
done
_muldi3
../../gcc-2.95.1/gcc/libgcc2.c:41: stdlib.h: No such file or directory
../../gcc-2.95.1/gcc/libgcc2.c:42: unistd.h: No such file or directory
The cross-gcc FAQ mentions a patch for gcc-2.8.1 for this problem. Is
there a patch for gcc-2.95.1, too? What is the reason, the patch is
not in the gcc-2.95.1 release?
I'd like to only install a cross compiler, assembler and linker but
without libc.
Looking at libgcc2.c I could get over the above problem by running
make CFLAGS=-Dinhibit_libc. Is this what I am supposed to do?
But then the compilation failed at
/home/urs/cross/build-gcc/gcc/xgcc -B/home/urs/cross/build-gcc/gcc/ -B/home/urs/cross/m68k-linux/bin/ -c -Dinhibit_libc -I. -I../../../gcc-2.95.1/libio -D_IO_MTSAFE_IO ../../../gcc-2.95.1/libio/iogetline.c
In file included from ../../../gcc-2.95.1/libio/iogetline.c:26:
../../../gcc-2.95.1/libio/libioP.h:30: errno.h: No such file or directory
In file included from ../../../gcc-2.95.1/libio/iolibio.h:1,
from ../../../gcc-2.95.1/libio/libioP.h:47,
from ../../../gcc-2.95.1/libio/iogetline.c:26:
../../../gcc-2.95.1/libio/libio.h:30: _G_config.h: No such file or directory
../../../gcc-2.95.1/libio/iogetline.c:27: string.h: No such file or directory
Is this for the libstdc++? How can I disable that?
urs
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