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scripts/build/companion_tools/050-make.sh
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695 f2495884ca3e
parent 2309 2e0f0757289d
permissions -rw-r--r--
config: add a 'auto' value for the number of parallel jobs

When CT_PARALLEL_JOBS is -1, set the number of parallel jobs to the
number of online CPUs + 1. Update documentation to match.

I find this useful when building in the cloud. You can use the same
.config file and have the build adapt to the number of processors
available. Limited testing shows that NCPUS+1 is faster than NCPUS+0
or NCPUS+2.

Signed-off-by: Michael Hope <michael.hope@linaro.org> 
     1 # Build script for make

     2 

     3 CT_MAKE_VERSION=3.81

     4 

     5 do_companion_tools_make_get() {

     6     CT_GetFile "make-${CT_MAKE_VERSION}" \

     7                {http,ftp}://ftp.gnu.org/gnu/make

     8 }

     9 

    10 do_companion_tools_make_extract() {

    11     CT_Extract "make-${CT_MAKE_VERSION}"

    12     CT_DoExecLog ALL chmod -R u+w "${CT_SRC_DIR}/make-${CT_MAKE_VERSION}"

    13     CT_Patch "make" "${CT_MAKE_VERSION}"

    14 }

    15 

    16 do_companion_tools_make_build() {

    17     CT_DoStep EXTRA "Installing make"

    18     mkdir -p "${CT_BUILD_DIR}/build-make"

    19     CT_Pushd "${CT_BUILD_DIR}/build-make"

    20 

    21     CT_DoExecLog CFG "${CT_SRC_DIR}/make-${CT_MAKE_VERSION}/configure" \

    22                      --prefix="${CT_BUILDTOOLS_PREFIX_DIR}"

    23     CT_DoExecLog ALL make

    24     CT_DoExecLog ALL make install

    25     CT_Popd

    26     CT_EndStep

    27 }
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