all: update to match GCK standard
This commit is contained in:
244
configure
vendored
244
configure
vendored
@@ -1,90 +1,200 @@
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#!/bin/sh
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# gck.configure - Prepares the build system for GCK distributions
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# FEATURES:
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# - Generate config.mak
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# - Sets C Flags
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#
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# COMPILATION (Linux - POSIX):
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# ./configure
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#
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#
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# LICENSE: BSD-3-Clause
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#
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# Copyright (c) 2025 GCK
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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usage() {
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cat <<EOF
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Usage: $0 [OPTION]... [VAR=VALUE]...
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me=$0
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scriptversion="1.0.1"
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To assign environment variables (e.g., CC, CFLAGS...), specify them as
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VAR=VALUE.
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version="make $scriptversion
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CC C compiler command [detected]
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CFLAGS C compiler flags [-g, ...]
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LDFLAGS C linker flags
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Copyright (C) 2025 GCK.
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--prefix=<path> Set the install path
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--debug Flags for debug build, overrides CFLAGS
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This is free software; you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law."
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EOF
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exit 0
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}
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usage="\
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Usage: $me [OPTION]...
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Prepares the build system for GCK distributions
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cmdexists() { type "$1" >/dev/null 2>&1 ; }
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trycc() { [ -z "$CC" ] && cmdexists "$1" && CC=$1 ; }
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Options:
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--release enable release flags
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--enable-debug enable debugging options
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--prefix PREFIX set installation prefix
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--help print this help and exit
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--version output version information
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Environment variables:
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CC C compiler command
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CFLAGS C compiler flags
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Use these variables to override the choices made by 'configure'."
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release=false
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debug=false
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prefix=/usr/local
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CFLAGS="-std=c23"
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LDFLAGS=
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CFLAGS=-pedantic
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CC=
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args_old=$@
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printf "checking for C compiler... "
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trycc gcc
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trycc clang
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trycc cc
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trycc icx
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printf "%s\n" "$CC"
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DEBUG=false
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for arg; do
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case "$arg" in
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--help|-h) usage ;;
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--prefix=*) prefix=${arg#*=} ;;
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--debug) DEBUG=true ;;
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CFLAGS=*) CFLAGS=${arg#*=} ;;
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LDFLAGS=*) LDFLAGS=${arg#*=} ;;
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CC=*) CC=${arg#*=} ;;
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*) printf "Unrecognized option %s\n" "$arg" ;;
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esac
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while [ $# -gt 0 ]; do
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case $1 in
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--help) echo "$usage"; exit 0 ;;
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--version) echo "$version"; exit 0 ;;
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--release) release=true ;;
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--enable-debug) debug=true ;;
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--prefix) shift; prefix=${1:?missing prefix argument} ;;
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--strict) CFLAGS+="-Werror" ;;
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CC=*) CC=${1#*=} ;;
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CFLAGS=*) CFLAGS=${1#*=} ;;
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-*)
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echo "$0: Unknown option '$1'." >&2
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echo "$0: Try '--help' for more information." >&2
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exit 1 ;;
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esac
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shift
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done
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if [ "$release" = true ] && [ "$debug" = true ]; then
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echo "$0: Can't set both '--release' and '--debug'." >&2
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echo "$0: Try '--help' for more information." >&2
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exit 1
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fi
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cmdexists() { command -v "$1" >/dev/null 2>&1 ; }
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trycc() { [ -z "$CC" ] && cmdexists "$1" && CC=$1 ; }
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if [ -z "$CC" ]; then
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printf "checking for C compiler... "
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trycc gcc
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trycc clang
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trycc cc
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if [ -z "$CC" ]; then
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echo "none found"
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exit 1
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fi
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printf "%s\n" "$CC"
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fi
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printf "checking for git... "
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if cmdexists git; then
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echo "yes"
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else
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echo "no"
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exit 1
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fi
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printf "checking whether C compiler works... "
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tmpc="$(mktemp -d)/test.c"
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tmpcdir="$(mktemp -d)"
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tmpc="$tmpcdir/test.c"
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echo "typedef int x;" > "$tmpc"
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if output=$($CC $CFLAGS -c -o /dev/null "$tmpc" 2>&1); then
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printf "yes\n"
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printf "yes\n"
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else
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printf "no; %s\n" "$output"
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exit 1
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printf "no; %s\n" "$output"
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rm -rf "$tmpcdir"
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exit 1
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fi
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rm -rf "$tmpcdir"
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if [ "$release" = true ]; then
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CFLAGS="$CFLAGS -O3 -pipe -DNDEBUG -march=native -flto -s -fdata-sections -ffunction-sections -Wl,--gc-sections"
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elif [ "$debug" = true ]; then
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CFLAGS="$CFLAGS -O0 -ggdb -Wall -Wextra -Wpedantic -fno-omit-frame-pointer -DDEBUG"
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fi
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GDEBUGCFLAGS="-std=c23 -O0 -g3 -Wall -Wextra -Wpedantic -Werror -Wshadow -Wdouble-promotion -Wformat=2 -Wnull-dereference -Wconversion -Wsign-conversion -Wcast-qual -Wcast-align=strict -Wpointer-arith -Wstrict-overflow=5 -Wstrict-aliasing=2 -Wundef -Wunreachable-code -Wswitch-enum -fanalyzer -fsanitize=undefined,address -fstack-protector-strong -D_FORTIFY_SOURCE=3"
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CDEBUGCFLAGS="-std=gnu2x -O0 -g3 -Wall -Wextra -Wpedantic -Werror -Wshadow -Wdouble-promotion -Wformat=2 -Wnull-dereference -Wconversion -Wsign-conversion -Wcast-qual -Wcast-align=strict -Wpointer-arith -Wstrict-overflow=5 -Wstrict-aliasing=2 -Wundef -Wunreachable-code -Wswitch-enum -fanalyzer -fsanitize=undefined,address -fstack-protector-strong -D_FORTIFY_SOURCE=3"
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echo "creating config.status"
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cat <<EOF > config.status
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#!/bin/sh
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# DO NOT MODIFY. THIS IS A AUTOGENERATED SCRIPT FROM 'configure'
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#
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# COMPILATION (Linux - POSIX):
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# ./config.status
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#
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#
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# LICENSE: BSD-3-Clause
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#
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# Copyright (c) 2025 GCK
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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if [ -z "$DEBUG" ]; then
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case "$CC" in
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gcc) CFLAGS="$GDEBUGFLAGS";;
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clang) CFLAGS="$CDEBUGFLAGS";;
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*) ;;
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esac
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else
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case "$CC" in
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gcc) ;;
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clang) ;;
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*) ;;
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esac
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fi
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case "$OSTYPE" in
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cygwin|msys)
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echo "enabling windows specific flags"
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CFLAGS="-v $CFLAGS"
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;;
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esac
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printf "creating config.mak... "
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printf "config.status: recreating config.mak... "
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{
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printf "PREFIX=%s\n" "$prefix"
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printf "CFLAGS=%s\n" "$CFLAGS"
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printf "LDFLAGS=%s\n" "$LDFLAGS"
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printf "CC=%s\n" "$CC"
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printf "PREFIX=%s\\n" "$prefix"
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printf "CFLAGS=%s\\n" "$CFLAGS"
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printf "CC=%s\\n" "$CC"
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} > config.status
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printf "done\n"
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EOF
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chmod u+x config.status
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printf "configure: creating config.mak... "
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{
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printf "PREFIX=%s\n" "$prefix"
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printf "CFLAGS=%s\n" "$CFLAGS"
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printf "CC=%s\n" "$CC"
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} > config.mak
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printf "done\n"
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# End: configure
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