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Fix flambda configure flag and parallel builds for pre-4.08 OCaml #3

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Merged
mattgodbolt merged 1 commit into from
Sep 30, 2026
Merged

Fix flambda configure flag and parallel builds for pre-4.08 OCaml #3

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28 changes: 15 additions & 13 deletions build/build.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -3,17 +3,7 @@
set -ex

FULL_VERSION=$1
IS_AUTOCONF=$3
VERSION=${FULL_VERSION}
FLAGS=
if echo ${VERSION} | grep -- '-flambda'; then
if [[ "x$IS_AUTOCONF" -eq "xyes" ]]; then
FLAGS=--enable-flambda
else
FLAGS=-flambda
fi
VERSION=${VERSION%-flambda}
fi
VERSION=${FULL_VERSION%-flambda}

if echo ${VERSION} | grep 'trunk'; then
echo Not supported at present
Expand Down Expand Up @@ -43,9 +33,21 @@ mkdir -p ${STAGING_DIR}

curl -L https://github.com/ocaml/ocaml/archive/${VERSION}.tar.gz | tar zxf -
cd ocaml-${VERSION}
if [[ -f configure.ac ]]; then
FLAMBDA_FLAG=--enable-flambda
JOBS=$(nproc)
else
# Before 4.08 OCaml had a hand-written configure (only takes -flambda) and its Makefiles aren't parallel-safe
FLAMBDA_FLAG=-flambda
JOBS=1
fi
FLAGS=
if [[ "${FULL_VERSION}" != "${VERSION}" ]]; then
FLAGS=${FLAMBDA_FLAG}
fi
./configure ${FLAGS} -prefix ${STAGING_DIR}
make -j$(nproc) world.opt
make -j$(nproc) install
make -j${JOBS} world.opt
make -j${JOBS} install

export XZ_DEFAULTS="-T 0"
tar Jcf ${OUTPUT} --transform "s,^./,./ocaml-${FULL_VERSION}/," -C ${STAGING_DIR} .
Expand Down
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