97 lines
2.7 KiB
Bash
97 lines
2.7 KiB
Bash
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#!/bin/sh
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set -eu
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prefix=/usr/local
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enable_s7=1
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cc=${CC:-cc}
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usage() {
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echo "usage: ./configure [--prefix=PATH] [--enable-s7] [CC=compiler]"
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echo "requires a C99 compiler, make, libsodium, libcurl; S7 is bundled and required"
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}
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for arg in "$@"; do
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case "$arg" in
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--prefix=*) prefix=${arg#*=} ;;
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--enable-s7) enable_s7=1 ;;
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--disable-s7) echo "configure: error: S7 is required for JSON and Scheme data handling" >&2; exit 1 ;;
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--help|-h) usage; exit 0 ;;
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CC=*) cc=${arg#CC=} ;;
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*) echo "configure: unknown option: $arg" >&2; usage >&2; exit 1 ;;
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esac
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done
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log=config.log
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: > "$log"
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echo "configure: checking build tools"
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for tool in "$cc" ar ranlib install make; do
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if ! command -v "$tool" >/dev/null 2>&1; then
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echo "configure: error: required tool '$tool' was not found" | tee -a "$log" >&2
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exit 1
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fi
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done
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tmp_c=conftest-$$.c
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tmp_exe=conftest-$$
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trap 'rm -f "$tmp_c" "$tmp_exe"' EXIT HUP INT TERM
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cat > "$tmp_c" <<'EOF'
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#include <sodium.h>
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int main(void) { return sodium_init() < 0; }
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EOF
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sodium_cflags=
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sodium_libs=-lsodium
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curl_cflags=
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curl_libs=-lcurl
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if command -v pkg-config >/dev/null 2>&1 && pkg-config --exists libsodium; then
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sodium_cflags=$(pkg-config --cflags libsodium)
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sodium_libs=$(pkg-config --libs libsodium)
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fi
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if ! "$cc" $sodium_cflags "$tmp_c" $sodium_libs -o "$tmp_exe" >>"$log" 2>&1; then
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echo "configure: error: libsodium headers and library are required" | tee -a "$log" >&2
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exit 1
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fi
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if command -v pkg-config >/dev/null 2>&1 && pkg-config --exists libcurl; then
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curl_cflags=$(pkg-config --cflags libcurl)
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curl_libs=$(pkg-config --libs libcurl)
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fi
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cat > "$tmp_c" <<'EOF'
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#include <curl/curl.h>
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int main(void) { CURL *c = curl_easy_init(); if (c) curl_easy_cleanup(c); return 0; }
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EOF
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if ! "$cc" $curl_cflags "$tmp_c" $curl_libs -o "$tmp_exe" >>"$log" 2>&1; then
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echo "configure: error: libcurl headers and library are required for Dat name resolution" | tee -a "$log" >&2
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exit 1
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fi
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cat > config.mk <<EOF
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# Generated by ./configure. Edit configure arguments, not this file.
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PREFIX = $prefix
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CC = $cc
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AR = ar
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RANLIB = ranlib
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INSTALL = install
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SODIUM_CFLAGS = $sodium_cflags
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SODIUM_LIBS = $sodium_libs
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CURL_CFLAGS = $curl_cflags
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CURL_LIBS = $curl_libs
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ENABLE_S7 = $enable_s7
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CPPFLAGS += \$(SODIUM_CFLAGS)
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EOF
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cat > config.h <<EOF
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#ifndef DATGPT_CONFIG_H
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#define DATGPT_CONFIG_H
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#define DATGPT_HAVE_SODIUM 1
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#define DATGPT_ENABLE_S7 $enable_s7
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#define DATGPT_PREFIX "$prefix"
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#endif
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EOF
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echo "configure: prefix: $prefix"
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echo "configure: compiler: $cc"
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echo "configure: libsodium: $sodium_libs"
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echo "configure: Dat name transport: $curl_libs"
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echo "configure: S7 bindings: required"
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echo "configure: created config.mk and config.h"
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