crosstool-ng: patches/gcc/4.3.4/330-unwind-for-uClibc.patch@9e2761e59a75

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: ../4.3.2/330-unwind-for-uClibc.patch

     3 -= BEGIN original header =-

     4 -= END original header =-

     6 diff -durN gcc-4.3.3.orig/gcc/config/t-linux-uclibc gcc-4.3.3/gcc/config/t-linux-uclibc

     7 --- gcc-4.3.3.orig/gcc/config/t-linux-uclibc	1970-01-01 01:00:00.000000000 +0100

     8 +++ gcc-4.3.3/gcc/config/t-linux-uclibc	2009-01-27 22:28:53.000000000 +0100

     9 @@ -0,0 +1,5 @@

    10 +# Remove glibc specific files added in t-linux

    11 +SHLIB_MAPFILES := $(filter-out $(srcdir)/config/libgcc-glibc.ver, $(SHLIB_MAPFILES))

    12 +

    13 +# Use unwind-dw2-fde instead of unwind-dw2-fde-glibc

    14 +LIB2ADDEH := $(subst unwind-dw2-fde-glibc.c,unwind-dw2-fde.c,$(LIB2ADDEH))

    15 diff -durN gcc-4.3.3.orig/gcc/config.gcc gcc-4.3.3/gcc/config.gcc

    16 --- gcc-4.3.3.orig/gcc/config.gcc	2009-01-27 22:25:37.000000000 +0100

    17 +++ gcc-4.3.3/gcc/config.gcc	2009-01-27 22:28:53.000000000 +0100

    18 @@ -2648,6 +2648,12 @@

    19  	;;

    20  esac

    22 +# Rather than hook into each target, just do it after all the linux

    23 +# targets have been processed

    24 +case ${target} in

    25 +  *-linux-uclibc*) tm_defines="${tm_defines} USE_UCLIBC" ; tmake_file="${tmake_file} t-linux-uclibc";;

    26 +esac

    27 +

    28  case ${target} in

    29  i[34567]86-*-linux*aout* | i[34567]86-*-linux*libc1)

    30  	tmake_file="${tmake_file} i386/t-gmm_malloc"

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--