scripts/build/arch/arm.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Dec 12 21:41:16 2011 +0200 (2011-12-12)
branch1.13
changeset 2845 0dc9d4931246
parent 1597 fa8f3ab724f9
child 3158 1161ea79915b
permissions -rw-r--r--
scripts: unset CONFIG_SITE

Some distributions (eg. openSUSE 12.1) systematically export
the CONFIG_SITE environment variable to point to a custom
script setting misc paths for ./configure.

This can, and does, break when cross-compiling for architectures
that are not supported by this script.

The simple workaround is to unset this variable.
NB: buildroot has a similar fix:
http://git.buildroot.org/buildroot/commit/?id=12c9f7dd6dee9c6029b4f9a12d6aac1516911ab4

Reported-by: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 21f4f28e60ec0342133086c9a51e7f0e5b181fb8)
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# Compute ARM-specific values
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CT_DoArchTupleValues() {
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    # The architecture part of the tuple:
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    CT_TARGET_ARCH="${CT_ARCH}${target_endian_eb}"
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    # The system part of the tuple:
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    case "${CT_LIBC},${CT_ARCH_ARM_EABI}" in
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        *glibc,y)   CT_TARGET_SYS=gnueabi;;
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        uClibc,y)   CT_TARGET_SYS=uclibcgnueabi;;
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        *,y)        CT_TARGET_SYS=eabi;;
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    esac
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    # Set the default instruction set mode
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    case "${CT_ARCH_ARM_MODE}" in
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        arm)    ;;
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        thumb)
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            CT_ARCH_CC_CORE_EXTRA_CONFIG="--with-mode=thumb"
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            CT_ARCH_CC_EXTRA_CONFIG="--with-mode=thumb"
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#            CT_ARCH_TARGET_CFLAGS="-mthumb"
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            ;;
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    esac
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    if [ "${CT_ARCH_ARM_INTERWORKING}" = "y" ]; then
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        CT_ARCH_TARGET_CFLAGS+=" -mthumb-interwork"
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    fi
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}