forked from Telodendria/Telodendria
289 lines
6.8 KiB
Bash
Executable file
289 lines
6.8 KiB
Bash
Executable file
#!/usr/bin/env sh
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#
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# Argument Parsing
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#
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echo "Build Configuration"
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echo "-------------------"
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BUILD="build"
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OUT="out"
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SRC="src"
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INCLUDE="include/Cytoplasm"
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TOOLS="tools"
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# Default compiler flags. These must be supported by all POSIX C compilers.
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# "Fancy" compilers that have additional options must be detected and set below.
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CFLAGS="-O1 -D_DEFAULT_SOURCE -I${INCLUDE}"
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LIBS="-lm -lpthread"
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# Default args for all platforms.
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SCRIPT_ARGS="--prefix=/usr/local --lib-name=Cytoplasm"
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# Set SSL flags depending on the platform.
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case "$(uname)" in
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OpenBSD)
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SCRIPT_ARGS="${SCRIPT_ARGS} --with-libressl"
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;;
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*)
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SCRIPT_ARGS="${SCRIPT_ARGS} --with-openssl"
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;;
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esac
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# Set compiler depending on the platform.
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case "$(uname)" in
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Linux|NetBSD)
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# These systems typically use GCC.
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SCRIPT_ARGS="${SCRIPT_ARGS} --cc=gcc"
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;;
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OpenBSD|FreeBSD)
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# These systems typically use Clang.
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SCRIPT_ARGS="${SCRIPT_ARGS} --cc=clang"
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;;
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*)
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# Use default compiler which is required to be present on
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# all POSIX-compliant systems.
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SCRIPT_ARGS="${SCRIPT_ARGS} --cc=c99"
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;;
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esac
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# Append any additional args specified by user
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SCRIPT_ARGS="${SCRIPT_ARGS} $@"
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echo "Processing options..."
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echo "Ran with arguments: $SCRIPT_ARGS"
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# Process all arguments
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for arg in $SCRIPT_ARGS; do
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case "$arg" in
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--cc=*)
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CC=$(echo "$arg" | cut -d '=' -f 2-)
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case "${CC}" in
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gcc*|clang*)
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# "Fancy" compilers that support a plethora of additional flags we
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# want to enable if present.
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CFLAGS="-Wall -Wextra -Werror -pedantic -std=c99 -O3 ${CFLAGS}"
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LDFLAGS="-flto -fdata-sections -ffunction-sections -s -Wl,-gc-sections"
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;;
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esac
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;;
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--with-openssl)
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TLS_IMPL="TLS_OPENSSL"
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TLS_LIBS="-lcrypto -lssl"
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;;
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--with-libressl)
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TLS_IMPL="TLS_LIBRESSL"
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TLS_LIBS="-ltls -lcrypto -lssl"
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;;
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--disable-tls)
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TLS_IMPL=""
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TLS_LIBS=""
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;;
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--prefix=*)
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PREFIX=$(echo "$arg" | cut -d '=' -f 2-)
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;;
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--lib-name=*)
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LIB_NAME=$(echo "$arg" | cut -d '=' -f 2-)
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;;
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--enable-debug)
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DEBUG="-O0 -g"
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;;
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--disable-debug)
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DEBUG=""
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;;
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*)
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echo "Invalid argument: $arg"
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exit 1
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;;
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esac
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done
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if [ -n "$TLS_IMPL" ]; then
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CFLAGS="${CFLAGS} -DTLS_IMPL=${TLS_IMPL}"
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LIBS="${LIBS} ${TLS_LIBS}"
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fi
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CFLAGS="${CFLAGS} '-DLIB_NAME=\"${LIB_NAME}\"' ${DEBUG}"
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LDFLAGS="${LIBS} ${LDFLAGS}"
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#
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# Makefile generation
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#
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collect() {
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from="$1"
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orig_ext="$2"
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new_ext="$3"
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prefix="$4"
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exec="$5"
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find "${from}" -name "*${orig_ext}" -type f | while IFS= read -r src; do
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src=$(echo "$src" | sed -e "s|^${from}||g")
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obj=$(echo "$src" | sed -e "s|${orig_ext}\$|${new_ext}|g")
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obj="${prefix}${obj}"
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src="${from}${src}"
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"${exec}" "${src}" "${obj}"
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done
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}
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print_src() {
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printf '%s ' "$1"
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}
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print_obj() {
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printf '%s ' "$2"
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}
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get_deps() {
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src="$1"
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${CC} -I${INCLUDE} -E "$src" \
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| grep '^#' \
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| awk '{print $3}' \
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| cut -d '"' -f 2 \
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| sort \
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| uniq \
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| grep -v '^[/<]' \
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| grep "^${SRC}/" \
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| while IFS= read -r dep; do
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printf "%s " "$dep"
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done
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}
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compile_obj() {
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src="$1"
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obj="$2"
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echo "${obj}: $(get_deps ${src})"
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echo "${TAB}@mkdir -p $(dirname ${obj})"
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echo "${TAB}\$(CC) \$(CFLAGS) -fPIC -c -o \"${obj}\" \"${src}\""
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}
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compile_bin() {
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src="$1"
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out="$2"
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echo "${out}: ${OUT}/lib/lib${LIB_NAME}.a ${OUT}/lib/lib${LIB_NAME}.so ${src}"
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echo "${TAB}@mkdir -p ${OUT}/bin"
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echo "${TAB}\$(CC) \$(CFLAGS) -o \"${out}\" \"${src}\" -L${OUT}/lib \$(LDFLAGS) -l${LIB_NAME}"
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}
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compile_doc() {
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src="$1"
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out="$2"
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pref="LD_LIBRARY_PATH=${OUT}/lib "
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echo "${out}: ${OUT}/bin/hdoc ${src}"
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echo "${TAB}@mkdir -p ${OUT}/man/man3"
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echo "${TAB}${pref}${OUT}/bin/hdoc -D \"Os=${LIB_NAME}\" -i \"${src}\" -o \"${out}\""
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}
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install_out() {
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src="$1"
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out="$2"
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dir=$(dirname "$out")
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echo "${TAB}mkdir -p \"$dir\""
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echo "${TAB}cp \"$src\" \"$out\""
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}
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install_man() {
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src="${OUT}/man/man3/${LIB_NAME}-$(basename $1 .h).3"
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out="$2"
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dir=$(dirname "$out")
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echo "${TAB}mkdir -p \"$dir\""
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echo "${TAB}cp \"$src\" \"$out\""
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}
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install_tool() {
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src=${OUT}/bin/$(basename "$1" .c)
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out="$2"
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dir=$(dirname "$out")
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echo "${TAB}mkdir -p \"$dir\""
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echo "${TAB}cp \"$src\" \"$out\""
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}
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uninstall_out() {
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src="$1"
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out="$2"
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echo "${TAB}rm \"$out\""
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}
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echo "Generating Makefile..."
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OBJS=$(collect ${SRC}/ .c .o ${BUILD}/ print_obj)
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TAB=$(printf '\t')
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cat << EOF > Makefile
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.POSIX:
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# Generated by '$0' on $(date).
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# This file should generally not be manually edited.
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CC = ${CC}
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PREFIX = ${PREFIX}
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CFLAGS = ${CFLAGS}
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LDFLAGS = ${LDFLAGS}
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all: ${LIB_NAME} docs tools
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docs: $(collect ${INCLUDE}/ .h .3 ${OUT}/man/man3/${LIB_NAME}- print_obj)
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tools: $(collect ${TOOLS}/ .c '' ${OUT}/bin/ print_obj)
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print-libs:
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${TAB}@echo ${LIBS}
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format:
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${TAB}find . -name '*.c' | while IFS= read -r src; do \\
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${TAB} if indent "\$\$src"; then \\
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${TAB} rm \$\$(basename "\$\$src").BAK; \\
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${TAB} fi \\
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${TAB}done
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license:
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${TAB}find . -name '*.[ch]' | while IFS= read -r src; do \\
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${TAB} srcHeader=\$\$(grep -n -m 1 '^ \*/' "\$\$src" | cut -d ':' -f 1); \\
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${TAB} head -n\$\$srcHeader \$\$src | \\
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${TAB} diff -u -p - "LICENSE.txt" | \\
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${TAB} patch "\$\$src" | grep -v "^Hmm"; \\
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${TAB}done
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${LIB_NAME}: ${OUT}/lib/lib${LIB_NAME}.a ${OUT}/lib/lib${LIB_NAME}.so
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install: ${LIB_NAME}
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${TAB}mkdir -p ${OUT}/lib
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${TAB}cp ${OUT}/lib/lib${LIB_NAME}.a \$(PREFIX)/lib/lib${LIB_NAME}.a
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${TAB}cp ${OUT}/lib/lib${LIB_NAME}.so \$(PREFIX)/lib/lib${LIB_NAME}.so
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$(collect ${INCLUDE}/ '' '' \$\(PREFIX\)/include/${LIB_NAME}/ install_out)
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$(collect ${INCLUDE}/ .h .3 \$\(PREFIX\)/man/man3/${LIB_NAME}- install_man)
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$(collect ${TOOLS}/ '.c' '' \$\(PREFIX\)/bin/ install_tool)
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uninstall:
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${TAB}rm -r \$(PREFIX)/lib/lib${LIB_NAME}.*
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${TAB}rm -r \$(PREFIX)/include/${LIB_NAME}
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${TAB}rm -r \$(PREFIX)/man/man3/${LIB_NAME}-*
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$(collect ${TOOLS}/ '.c' '' \$\(PREFIX\)/bin/ uninstall_out)
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clean:
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${TAB}rm -r "${BUILD}" "${OUT}"
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${OUT}/lib/lib${LIB_NAME}.a: ${OBJS}
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${TAB}@mkdir -p ${OUT}/lib
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${TAB}\$(AR) rcs ${OUT}/lib/lib${LIB_NAME}.a ${OBJS}
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${OUT}/lib/lib${LIB_NAME}.so: ${OBJS}
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${TAB}@mkdir -p ${OUT}/lib
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${TAB}\$(CC) -shared -o ${OUT}/lib/lib${LIB_NAME}.so ${OBJS} ${LDFLAGS}
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$(collect ${SRC}/ .c .o ${BUILD}/ compile_obj)
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$(collect ${TOOLS}/ .c '' ${OUT}/bin/ compile_bin)
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$(collect ${INCLUDE}/ .h .3 ${OUT}/man/man3/${LIB_NAME}- compile_doc)
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EOF
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echo "Done. Run 'make' to build ${LIB_NAME}."
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