scripts/build/arch/powerpc.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Fri Jan 28 22:06:49 2011 +0100 (2011-01-28)
changeset 2284 7ede374110e5
parent 1181 2e88d85d6ffc
child 2675 7c288c777455
permissions -rw-r--r--
config: add an option not to remove the destination directory

In certain circumstances, removing the destination/installation directory
is a bad idea. For example, when the build environment is already taking
care of sanitising the build tree, and pre-installs stuff in there, it is
a very bad idea to remove the destination directory.

This happens now in buildroot, as the crostool-NG backend now installs the
toolchain in the common host-tools directory, and pre-install there a few
host-utilities (eg. host-automake and host-gawk).

Provide a config knob to turn on/off the removal of the destination
directory, defaulting to 'y' (previous behavior), and forced to 'n' when
used as a backend.

Reported-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 # Compute powerpc-specific values
     2 
     3 CT_DoArchTupleValues () {
     4     # The architecture part of the tuple, override only for 64-bit
     5     if [ "${CT_ARCH_64}" = "y" ]; then
     6         CT_TARGET_ARCH="powerpc64"
     7     fi
     8 
     9     # Add spe in the tuple if needed
    10     case "${CT_LIBC},${CT_ARCH_POWERPC_SPE}" in
    11         glibc,|eglibc,)   CT_TARGET_SYS=gnu;;
    12         glibc,y|eglibc,y) CT_TARGET_SYS=gnuspe;;
    13     esac
    14 
    15     # Add extra flags for SPE if needed
    16     if [ "${CT_ARCH_POWERPC_SPE}" = "y" ]; then
    17         CT_ARCH_TARGET_CFLAGS="-mabi=spe -mspe"
    18         CT_ARCH_CC_CORE_EXTRA_CONFIG="--enable-e500_double"
    19         CT_ARCH_CC_EXTRA_CONFIG="--enable-e500_double"
    20     fi
    21 }