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#!/bin/bash
: "${PCRE2SYS_HEADER:=/usr/include/pcre2.h}"
: "${PCRE2SYS_BINDINGS:=./src/bindings.rs}"
if ! command -V bindgen > /dev/null 2>&1; then
echo "bindgen must be installed" >&2
echo "to install: cargo install bindgen" >&2
exit 1
fi
if ! [ -f "$PCRE2SYS_HEADER" ]; then
echo "PCRE2 header file at $PCRE2SYS_HEADER does not exist" >&2
echo "Use the PCRE2SYS_HEADER environment variable to override path" >&2
exit 1
fi
bindgen \
"$PCRE2SYS_HEADER" \
--ctypes-prefix '::libc' \
--allowlist-function '^pcre2_.*' \
--allowlist-type '^pcre2_.*' \
--allowlist-var '^PCRE2_.*' \
--blocklist-function '^.*_callout_.*' \
--blocklist-type '^.*_callout_.*' \
-- -DPCRE2_CODE_UNIT_WIDTH=8 > "$PCRE2SYS_BINDINGS"
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