[uClibc]header files
Brendan J Simon
brendan.simon at ctam.com.au
Wed Jul 10 01:09:26 UTC 2002
I have a project where I was using a linux 2.4 kernel and glibc-2.2.5.
My compile line had -I<glibc-include-dir> -I<linux-include-dir>. I am
now trying to use uClibc to replace glibc. Using similar compiler flags
I now get redefined values. This is because a header file is included
from the linux include directory AND the uclibc include directory. eg.
The output is:
CC : build/drivers/hw_test/test.o
/home/aegis/uclibc/branch.0/branch.9/branch.12/branch.0/baseline/myproduct/devel/bin/gcc
-msoft-float -O2 -Wall -Werror -DCONFIG_KERNELD -DMODULE -D__KERNEL__
-DLINUX -Isrc/include
-I/home/aegis/linux/branch.2/branch.4/branch.0/branch.0/baseline/src/include
-nostdinc -nostdinc++ -Isrc/include
-I/home/aegis/linux/branch.2/branch.4/branch.0/branch.0/baseline/src/include
-I/home/aegis/uclibc/branch.0/branch.9/branch.12/branch.0/baseline/myproduct/devel/include
-I/usr/lib/gcc-lib/powerpc-linux/2.95.4/include -c -o
build/drivers/hw_test/test.o src/drivers/hw_test/test.c
In file included from
/home/aegis/uclibc/branch.0/branch.9/branch.12/branch.0/baseline/myproduct/devel/include/stdio.h:65,
from src/include/ctam/misc.h:21,
from src/drivers/hw_test/test.c:27:
/home/aegis/uclibc/branch.0/branch.9/branch.12/branch.0/baseline/myproduct/devel/include/sys/types.h:207:
warning: `__BIT_TYPES_DEFINED__' redefined
/home/aegis/linux/branch.2/branch.4/branch.0/branch.0/baseline/src/include/linux/types.h:95:
warning: this is the location of the previous definition
I am using the tools created by uClibc. Is it possible to use the
standard system tools at all ? ie. using -nostdinc -nostdinc++ and
pointing to the appropriate header files etc ???
Should I be using the -nostdinc -nostdinc++ flags with the uclibc tools ?
I noticed that the build of uclibc seems to _copy_ all the linux header
files to the delelopment directory. Is this correct ? If so, should I
still be pointing the compiler to the linux include directory ? If we
have two or more versions of a kernel, does that mean I have to compile
uclibc two or more times and have two or more development directories
for each kerenl ???
Thanks for any advice,
Brendan Simon.
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