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patches/gcc/4.3.4/130-cross-compile.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed Jun 08 15:47:43 2011 +0200 (2011-06-08)
changeset 2508 9e2761e59a75
permissions -rw-r--r--
debug/cross-gdb: check host dependencies

Cross-gdb depends on expat and python. If either is missing, cross-gdb will
build successfully, but lacking some features.

Especially, if expat is missing, cross-gdb will be unable to parse the target
description, which may lead to runtime malfunctions and the following GDB
warning:
"Can not parse XML target description; XML support was disabled at compile time"

Hence, expat should be considered mandatory.

On the other hand, the features missing without python are not critical, so
python should not be considered mandatory.

This patch does the following:
- At configure time, warn the user if either expat or python is missing.
- In menuconfig, disable the static build options regarding cross-gdb if no
static version of expat is available, and disable cross-gdb if expat is
missing.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
[yann.morin.1998@anciens.enib.fr: add comment for impossible static cross-gdb]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Original patch from: ../4.3.2/130-cross-compile.patch

     2 

     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

     8 

     9 -= END original header =-

    10 

    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

    22  

    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

    34  

    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

    41  

    42 +#ifndef inhibit_libc

    43  #ifdef MD_UNWIND_SUPPORT

    44  #include MD_UNWIND_SUPPORT

    45  #endif

    46 +#endif

    47  

    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,
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