crosstool-ng: patches/glibc/ports-2.10.1/130-i386-no-fallocate.patch@a70abdbfa342

complibs/cloog: fix linking with libm

In Ubuntu 11.04 and 11.10, the default options for ld have changed.
--no-copy-dt-needed-entries and --as-needed are now enabled by default, which
causes errors like:

[EXTRA] Checking CLooG/ppl
[DEBUG] ==> Executing: 'make' '-j3' '-s' 'check'
[ALL ] Making check in .
[ALL ] config.status: creating include/cloog/cloog-config.h
[ALL ] config.status: include/cloog/cloog-config.h is unchanged
[ALL ] libtool: link: i686-build_pc-linux-gnu-gcc -Wall -fomit-frame-pointer
-pipe -o cloog cloog.o -L/<snip>/build/static/lib ./.libs/libcloog.a -lm
/<snip>/build/static/lib/libppl_c.a /<snip>/build/static/lib/libpwl.a
/<snip>/build/static/lib/libppl.a /<snip>/build/static/lib/libgmpxx.a
/<snip>/build/static/lib/libgmp.a -lstdc++
[ALL ] /usr/bin/ld: /<snip>/build/static/lib/libppl.a(MIP_Problem.o):
undefined reference to symbol 'sqrt@@GLIBC_2.0'
[ALL ] /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so so try adding
it to the linker command line
[ALL ] /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so:
could not read symbols: Invalid operation
[ALL ] collect2: ld returned 1 exit status
[ERROR] make[2]: *** [cloog] Error 1
[ERROR] make[1]: *** [check-recursive] Error 1

See:
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

This patch fixes these errors by placing '-lm' at the right place on the command
line as libppl requires libm when linking cloog.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>

     1 Fix building on x86 when older linux headers lack __NR_fallocate define.

     3 URL: http://bugs.gentoo.org/274269

     4 Reported-by: Mikael Magnusson <mikachu@gmail.com>

     6 2009-11-09  Mike Frysinger  <vapier@gentoo.org>

     8 	* sysdeps/unix/sysv/linux/i386/fallocate.c: Include errno.h.

     9 	(fallocate): Return ENOSYS if __NR_fallocate is not defined.

    10 	* sysdeps/unix/sysv/linux/i386/fallocate64.c: Likewise.

    12 diff -durN glibc-2.10.1.orig/sysdeps/unix/sysv/linux/i386/fallocate.c glibc-2.10.1/sysdeps/unix/sysv/linux/i386/fallocate.c

    13 --- glibc-2.10.1.orig/sysdeps/unix/sysv/linux/i386/fallocate.c	2009-03-02 17:11:06.000000000 +0100

    14 +++ glibc-2.10.1/sysdeps/unix/sysv/linux/i386/fallocate.c	2009-11-13 00:49:47.000000000 +0100

    15 @@ -16,6 +16,7 @@

    16     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

    17     02111-1307 USA.  */

    19 +#include <errno.h>

    20  #include <fcntl.h>

    21  #include <sysdep.h>

    23 @@ -28,5 +29,10 @@

    24  int

    25  fallocate (int fd, int mode, __off_t offset, __off_t len)

    26  {

    27 +#ifdef __NR_fallocate

    28    return __call_fallocate (fd, mode, offset, len);

    29 +#else

    30 +  __set_errno (ENOSYS);

    31 +  return -1;

    32 +#endif

    33  }

    34 diff -durN glibc-2.10.1.orig/sysdeps/unix/sysv/linux/i386/fallocate64.c glibc-2.10.1/sysdeps/unix/sysv/linux/i386/fallocate64.c

    35 --- glibc-2.10.1.orig/sysdeps/unix/sysv/linux/i386/fallocate64.c	2009-03-02 17:10:29.000000000 +0100

    36 +++ glibc-2.10.1/sysdeps/unix/sysv/linux/i386/fallocate64.c	2009-11-13 00:49:47.000000000 +0100

    37 @@ -16,6 +16,7 @@

    38     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

    39     02111-1307 USA.  */

    41 +#include <errno.h>

    42  #include <fcntl.h>

    43  #include <sysdep.h>

    45 @@ -28,5 +29,10 @@

    46  int

    47  __fallocate64_l64 (int fd, int mode, __off64_t offset, __off64_t len)

    48  {

    49 +#ifdef __NR_fallocate

    50    return __call_fallocate (fd, mode, offset, len);

    51 +#else

    52 +  __set_errno (ENOSYS);

    53 +  return -1;

    54 +#endif

    55  }

author	"Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
	Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854	a70abdbfa342
permissions	-rw-r--r--