crosstool-ng: patches/gcc/4.3.4/130-cross-compile.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 Original patch from: ../4.3.2/130-cross-compile.patch

     3 -= BEGIN original header =-

     4 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/08_all_gcc-4.1-cross-compile.patch

     5 Some notes on the 'bootstrap with or without libc headers' debate:

     6 http://linuxfromscratch.org/pipermail/lfs-dev/2005-July/052409.html

     7 http://gcc.gnu.org/ml/gcc/2005-07/msg01195.html

     9 -= END original header =-

    11 diff -durN gcc-4.3.3.orig/gcc/configure gcc-4.3.3/gcc/configure

    12 --- gcc-4.3.3.orig/gcc/configure	2008-08-01 11:51:03.000000000 +0200

    13 +++ gcc-4.3.3/gcc/configure	2009-01-27 22:19:16.000000000 +0100

    14 @@ -13442,7 +13442,7 @@

    15  	    | powerpc*-*-*,powerpc64*-*-*)

    16  		CROSS="$CROSS -DNATIVE_CROSS" ;;

    17  	esac

    18 -elif test "x$TARGET_SYSTEM_ROOT" != x; then

    19 +elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then

    20          SYSTEM_HEADER_DIR=$build_system_header_dir

    21  fi

    23 diff -durN gcc-4.3.3.orig/gcc/configure.ac gcc-4.3.3/gcc/configure.ac

    24 --- gcc-4.3.3.orig/gcc/configure.ac	2008-08-01 11:51:03.000000000 +0200

    25 +++ gcc-4.3.3/gcc/configure.ac	2009-01-27 22:19:16.000000000 +0100

    26 @@ -1749,7 +1749,7 @@

    27  	    | powerpc*-*-*,powerpc64*-*-*)

    28  		CROSS="$CROSS -DNATIVE_CROSS" ;;

    29  	esac

    30 -elif test "x$TARGET_SYSTEM_ROOT" != x; then

    31 +elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then

    32          SYSTEM_HEADER_DIR=$build_system_header_dir

    33  fi

    35 diff -durN gcc-4.3.3.orig/gcc/unwind-dw2.c gcc-4.3.3/gcc/unwind-dw2.c

    36 --- gcc-4.3.3.orig/gcc/unwind-dw2.c	2008-09-25 00:44:28.000000000 +0200

    37 +++ gcc-4.3.3/gcc/unwind-dw2.c	2009-01-27 22:19:16.000000000 +0100

    38 @@ -334,9 +334,11 @@

    39  }

    40  #endif

    42 +#ifndef inhibit_libc

    43  #ifdef MD_UNWIND_SUPPORT

    44  #include MD_UNWIND_SUPPORT

    45  #endif

    46 +#endif

    48  /* Extract any interesting information from the CIE for the translation

    49     unit F belongs to.  Return a pointer to the byte after the augmentation,

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--