Date: Fri, 23 Aug 2013 15:16:08 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: FreeBSD Current <freebsd-current@FreeBSD.org>, freebsd-toolchain@FreeBSD.org Subject: stable/8 kernel-toolchain fails with clang on head Message-ID: <52175288.4090500@FreeBSD.org>
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$ /usr/obj/usr/devel/svn/base/stable/8/make.amd64/make kernel-toolchain
WITHOUT_CLANG=1 __MAKE_CONF=/dev/null SRCCONF=/dev/null
...
cc -O2 -pipe -DIN_GCC -DHAVE_CONFIG_H
-DPREFIX=\"/usr/obj/usr/devel/svn/base/stable/8/tmp/usr\"
-I/usr/obj/usr/devel/svn/base/stable/8/tmp/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../cc_tools
-I/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../cc_tools
-I/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc
-I/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/config
-I/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcclibs/include
-I/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcclibs/libcpp/include
-I/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcclibs/libdecnumber
-I/usr/obj/usr/devel/svn/base/stable/8/tmp/legacy/usr/include
-DTARGET_NAME=\"amd64-undermydesk-freebsd\" -c
/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/toplev.c
In file included from
/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/toplev.c:58:
/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/output.h:123:6:
warning: 'format' attribute argument not supported: __asm_fprintf__
[-Wignored-attributes]
ATTRIBUTE_ASM_FPRINTF(2, 3);
^
/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/output.h:113:53:
note: expanded from macro 'ATTRIBUTE_ASM_FPRINTF'
#define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__,
m, n))) ATTRIBUTE_NONNULL(m)
^
/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/toplev.c:542:1:
error: redefinition of a 'extern inline' function 'floor_log2' is not supported
in C99 mode
floor_log2 (unsigned HOST_WIDE_INT x)
^
/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/toplev.h:174:1:
note: previous definition is here
floor_log2 (unsigned HOST_WIDE_INT x)
^
/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/toplev.c:577:1:
error: redefinition of a 'extern inline' function 'exact_log2' is not supported
in C99 mode
exact_log2 (unsigned HOST_WIDE_INT x)
^
/usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int/../../../../contrib/gcc/toplev.h:180:1:
note: previous definition is here
exact_log2 (unsigned HOST_WIDE_INT x)
^
1 warning and 2 errors generated.
*** Error code 1
Stop in /usr/devel/svn/base/stable/8/gnu/usr.bin/cc/cc_int.
It seems that the problem is specific to stable/8 and is caused by missing
-std=gnu89. And that seems to be caused by -DNO_WARNS that is used for
toolchain target.
Dependency between NO_WARNS and CSTD was removed in r198335 + r198365, but those
were never MFC-ed.
What do you think?
--
Andriy Gapon
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