#!/bin/sh # # Copyright (c) 2021 Omar Polo # # Permission to use, copy, modify, and distribute this software for any # purpose with or without fee is hereby granted, provided that the above # copyright notice and this permission notice appear in all copies. # # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. # adapted from mandoc configure and oconfigure, thanks schwarze@ and # kristaps@! set -e [ -w config.log ] && mv config.log config.log.old [ -w config.h ] && mv config.h config.h.old # Output file descriptor usage: # 1 (stdout): config.h, Makefile.local # 2 (stderr): original stderr, usually to the console # 3: config.log exec 3> config.log echo "file config.log: writing..." # -------- # default settings: initialize all vars here such that nothing is # leaked from the environment except for CC, CFLAGS and LDFLAGS VERSION=1.7.3 CC=`printf "all:\\n\\t@echo \\\$(CC)\\n" | make ${MAKE_FLAGS} -sf -` if [ -z "${CFLAGS}" ]; then CFLAGS=`printf "all:\\n\\t@echo \\\$(CFLAGS)\\n" | make ${MAKE_FLAGS} -sf -` fi CFLAGS="${CFLAGS} -W -Wall -Wextra -Wmissing-prototypes -Wstrict-prototypes" CFLAGS="${CFLAGS} -Wwrite-strings -Wno-unused-parameter" if [ -z "${LDFLAGS}" ]; then LDFLAGS=`printf "all:\\n\\t@echo \\\$(LDFLAGS)\\n" | make ${MAKE_FLAGS} -sf -` LDFLAGS="-ltls -levent -lcrypto" fi LD_IMSG= STATIC= YACC=yacc DISABLE_SANDBOX=0 NEED_GNU_SOURCE=0 NEED_OPENBSD_SOURCE=0 PREFIX="/usr/local" BINDIR= INSTALL="install" add_library() { if pkg-config "$1"; then CFLAGS="${CFLAGS} $(pkg-config --cflags "$1")" LDFLAGS="${LDFLAGS} $(pkg-config --libs "$1")" fi } # try to auto detect CFLAGS and LDFLAGS if which pkg-config 2>/dev/null 1>&2; then add_library "libtls" add_library "openssl" case "$(uname)" in OpenBSD) # use libevent and imsg in base ;; *) add_library "libevent" add_library "libimsg" ;; esac case "$(uname)" in *BSD|DragonFly|Darwin) ;; *) add_library "libbsd-ctor libbsd-overlay" ;; esac fi # auto detect yacc/bison which ${YACC} 2>/dev/null 1>&2 || { echo "${YACC} not found: trying bison" 1>&2 echo "${YACC} not found: trying bison" 1>&3 YACC=bison which ${YACC} 2>/dev/null 1>&2 || { echo "${YACC} not found: giving up" 1>&2 echo "${YACC} not found: giving up" 1>&3 } } # -------- # allow certain variables to be overridden on the command line for keyvals in "$@"; do if [ "$keyvals" = "--disable-sandbox" ]; then DISABLE_SANDBOX=1 continue fi if [ "$keyvals" = "--enable-sandbox" ]; then DISABLE_SANDBOX=0 continue fi key=`echo $keyvals | cut -s -d '=' -f1` if [ -z "$key" ]; then echo "$0: invalid key-value: $keyvals" 1>&2 exit 1 fi val=`echo $keyvals | cut -d '=' -f 2-` case "$key" in BINDIR) BINDIR="$val" ;; CC) CC="$val" ;; CFLAGS) CFLAGS="$val" ;; DESTDIR) DESTDIR="$val" ;; LDFLAGS) LDFLAGS="$val" ;; PREFIX) PREFIX="$val" ;; YACC) YACC="$val" ;; *) echo "$0: invalid key: $key" 1>&2 exit 1 esac done # -------- # tests functions # Check whether this HAVE_ setting is manually overridden. # If yes, use the override, if no, do not decide anything yet. # Arguments: test file name, test var name, manual value ismanual() { [ -z "${3}" ] && return 1 echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&2 echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&3 echo 1>&3 return 0 } # Run a single autoconfiguration test. # In case of success, enable the feature. # In case of failure, do not decide anything yet. # Arguments: test file name, test var name, additional CFLAGS singletest() { n=${1}${3} cat 1>&3 << __HEREDOC__ testing ${n} ... ${COMP} -o have/${1} have/${1}.c ${3} ${LDFLAGS} __HEREDOC__ if ${COMP} -o "have/${1}" "have/${1}.c" ${3} ${LDFLAGS} 1>&3 2>&3 then echo "partial result of ${n}: ${CC} succeeded" 1>&3 else echo "tested ${n}: no (compilation failed)" 1>&2 echo "result of ${n}: ${CC} failed with exit status $?" 1>&3 echo "result of compiling ${n}: no" 1>&3 echo 1>&3 return 1 fi if ./have/${1} 1>&3 2>&3; then echo "tested ${n}: yes" 1>&2 echo "result of running ${n}: yes" 1>&3 echo 1>&3 eval HAVE_${2}=1 [ "${3}" = "-D_GNU_SOURCE" ] && NEED_GNU_SOURCE=1 [ "${3}" = "-D_OPENBSD_SOURCE" ] && NEED_OPENBSD_SOURCE=1 [ "${3}" = "-lutil" ] && LD_IMSG="-lutil" rm "have/${1}" return 0 else echo "tested ${n}: no (execution failed)" 1>&2 echo "result of ${n}: execution failed with exit status $?" 1>&3 echo "result of running ${n}: no" 1>&3 echo 1>&3 rm "have/${1}" return 1 fi } # Run a complete autoconfiguration test, including the check for # a manual override and disabling the feature on failure. # Arguments: test file name, test var name, additional CFLAGS # The final argument can optionally be repeated a second time. runtest() { eval _manual=\${HAVE_${2}} ismanual "${1}" "${2}" "${_manual}" && return 0 singletest "${1}" "${2}" "${3}" && return 0 [ -n "${4}" ] && singletest "${1}" "${2}" "${4}" && return 0 eval HAVE_${2}=0 return 1 } # -------- # compiler options COMP="${CC} ${CFLAGS} -Wno-unused -Werror" echo "selected CFLAGS=\"${CFLAGS}\"" 1>&2 echo "selected CFLAGS=\"${CFLAGS}\"" 1>&3 echo 1>&3 if [ -n "${STATIC}" ]; then echo "selected STATIC=\"${STATIC}\" (manual)" 1>&2 echo "selected STATIC=\"${STATIC}\" (manual)" 1>&3 echo 1>&3 else runtest noop STATIC -static || true [ ${HAVE_STATIC} -eq 0 ] || STATIC="-static" echo "selected STATIC=\"${STATIC}\"" 1>&2 echo "selected STATIC=\"${STATIC}\"" 1>&3 echo 1>&3 fi # -------- # tests for config.h runtest err ERR || true runtest explicit_bzero EXPLICIT_BZERO || true runtest freezero FREEZERO || true runtest getdtablecount GETDTABLECOUNT || true runtest getdtablesize GETDTABLESIZE || true runtest getprogname GETPROGNAME || true runtest imsg IMSG -lutil || true runtest libevent LIBEVENT || true runtest libtls LIBTLS || true runtest openssl OPENSSL || true runtest pr_set_name PR_SET_NAME || true runtest program_invocation_short_name PROGRAM_INVOCATION_SHORT_NAME "" -D_GNU_SOURCE || true runtest queue_h QUEUE_H || true runtest reallocarray REALLOCARRAY || true runtest recallocarray RECALLOCARRAY || true runtest setproctitle SETPROCTITLE || true runtest strlcat STRLCAT || true runtest strlcpy STRLCPY || true runtest strtonum STRTONUM || true runtest vasprintf VASPRINTF "" -D_GNU_SOURCE || true if [ ${HAVE_LIBTLS} -eq 0 ]; then echo "FATAL: libtls not found" 1>&2 echo "FATAL: libtls not found" 1>&3 exit 1 fi if [ ${HAVE_OPENSSL} -eq 0 ]; then echo "FATAL: openssl not found" 1>&2 echo "FATAL: openssl not found" 1>&3 exit 1 fi if [ ${HAVE_LIBEVENT} -eq 0 ]; then echo "FATAL: libevent not found" 1>&2 echo "FATAL: libevent not found" 1>&3 exit 1 fi if [ ${HAVE_QUEUE_H} -eq 0 -o ${HAVE_IMSG} -eq 0 ]; then CFLAGS="${CFLAGS} -I ${PWD}/compat" fi # -------- # write config.h exec > config.h cat <<__HEREDOC__ #ifdef __cplusplus #error "Do not use C++." #endif __HEREDOC__ [ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE" [ ${NEED_OPENBSD_SOURCE} -eq 0 ] || echo "#define _OPENBSD_SOURCE" [ ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 -o ${HAVE_IMSG} -eq 0 ] \ && echo "#include " [ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include " if [ ${HAVE_QUEUE_H} -eq 1 ]; then echo "#include " else echo "#include " fi echo "#include " echo "#include " echo "#include " echo "#include " cat <<__HEREDOC__ #define VERSION "${VERSION}" #define DISABLE_SANDBOX ${DISABLE_SANDBOX} #define HAVE_ERR ${HAVE_ERR} #define HAVE_EXPLICIT_BZERO ${HAVE_EXPLICIT_BZERO} #define HAVE_FREEZERO ${HAVE_FREEZERO} #define HAVE_GETDTABLECOUNT ${HAVE_GETDTABLECOUNT} #define HAVE_GETDTABLESIZE ${HAVE_GETDTABLESIZE} #define HAVE_GETPROGNAME ${HAVE_GETPROGNAME} #define HAVE_IMSG ${HAVE_IMSG} #define HAVE_LIBEVENT ${HAVE_LIBEVENT} #define HAVE_PROGRAM_INVOCATION_SHORT_NAME ${HAVE_PROGRAM_INVOCATION_SHORT_NAME} #define HAVE_PR_SET_NAME ${HAVE_PR_SET_NAME} #define HAVE_QUEUE_H ${HAVE_QUEUE_H} #define HAVE_REALLOCARRAY ${HAVE_REALLOCARRAY} #define HAVE_RECALLOCARRAY ${HAVE_RECALLOCARRAY} #define HAVE_SETPROCTITLE ${HAVE_SETPROCTITLE} #define HAVE_STRLCAT ${HAVE_STRLCAT} #define HAVE_STRLCPY ${HAVE_STRLCPY} #define HAVE_STRTONUM ${HAVE_STRTONUM} #define HAVE_VASPRINTF ${HAVE_VASPRINTF} __HEREDOC__ [ ${HAVE_EXPLICIT_BZERO} -eq 0 -o \ ${HAVE_FREEZERO} -eq 0 -o \ ${HAVE_REALLOCARRAY} -eq 0 -o \ ${HAVE_RECALLOCARRAY} -eq 0 -o \ ${HAVE_STRLCAT} -eq 0 -o \ ${HAVE_STRLCPY} -eq 0 -o \ ${HAVE_STRTONUM} -eq 0 ] && echo "#include " if [ ${HAVE_ERR} -eq 0 ]; then echo "extern void err(int, const char*, ...);" echo "extern void errx(int, const char*, ...);" echo "extern void warn(const char*, ...);" echo "extern void warnx(const char*, ...);" COMPAT="${COMPAT} compat/err.o" else echo "#include " fi if [ ${HAVE_EXPLICIT_BZERO} -eq 0 ]; then echo "extern void explicit_bzero(void*, size_t);" COMPAT="${COMPAT} compat/explicit_bzero.o" fi if [ ${HAVE_FREEZERO} -eq 0 ]; then echo "extern void freezero(void*, size_t);" COMPAT="${COMPAT} compat/freezero.o" fi if [ ${HAVE_GETDTABLECOUNT} -eq 0 ]; then echo "extern int getdtablecount(void);" COMPAT="${COMPAT} compat/getdtablecount.o" fi if [ ${HAVE_GETDTABLESIZE} -eq 0 ]; then echo "extern int getdtablesize(void);" COMPAT="${COMPAT} compat/getdtablesize.o" fi if [ ${HAVE_GETPROGNAME} -eq 0 ]; then echo "extern const char *getprogname(void);" COMPAT="${COMPAT} compat/getprogname.o" fi if [ ${HAVE_IMSG} -eq 0 ]; then COMPAT="${COMPAT} compat/imsg.o compat/imsg-buffer.o" fi if [ ${HAVE_REALLOCARRAY} -eq 0 ]; then echo "extern void *reallocarray(void*, size_t, size_t);" COMPAT="${COMPAT} compat/reallocarray.o" fi if [ ${HAVE_RECALLOCARRAY} -eq 0 ]; then echo "extern void *recallocarray(void*, size_t, size_t, size_t);" COMPAT="${COMPAT} compat/recallocarray.o" fi if [ ${HAVE_SETPROCTITLE} -eq 0 ]; then echo "extern void setproctitle(const char *fmt, ...);" COMPAT="${COMPAT} compat/setproctitle.o" fi if [ ${HAVE_STRLCAT} -eq 0 ]; then echo "extern size_t strlcat(char*, const char*, size_t);" COMPAT="${COMPAT} compat/strlcat.o" fi if [ ${HAVE_STRLCPY} -eq 0 ]; then echo "extern size_t strlcpy(char*, const char*, size_t);" COMPAT="${COMPAT} compat/strlcpy.o" fi if [ ${HAVE_STRTONUM} -eq 0 ]; then echo "extern long long strtonum(const char*, long long, long long, const char**);" COMPAT="${COMPAT} compat/strtonum.o" fi if [ ${HAVE_VASPRINTF} -eq 0 ]; then echo "extern int vasprintf(char**, const char*, va_list);" COMPAT="${COMPAT} compat/vasprintf.o" fi echo "file config.h: written" 1>&2 echo "file config.h: written" 1>&3 # -------- # tests for Makefile.local exec > Makefile.local [ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin" [ -z "${MANDIR}" ] && MANDIR="${PREFIX}/man" [ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555" [ -z "${INSTALL_LIB}" ] && INSTALL_LIB="${INSTALL} -m 0444" [ -z "${INSTALL_MAN}" ] && INSTALL_MAN="${INSTALL} -m 0444" [ -z "${INSTALL_DATA}" ] && INSTALL_DATA="${INSTALL} -m 0444" cat << __HEREDOC__ CC = ${CC} CFLAGS = ${CFLAGS} LDFLAGS = ${LDFLAGS} ${LD_IMSG} YACC = ${YACC} STATIC = ${STATIC} PREFIX = ${PREFIX} BINDIR = ${BINDIR} MANDIR = ${MANDIR} INCLUDEDIR = ${INCLUDEDIR} INSTALL = ${INSTALL} INSTALL_PROGRAM = ${INSTALL_PROGRAM} INSTALL_LIB = ${INSTALL_LIB} INSTALL_MAN = ${INSTALL_MAN} INSTALL_DATA = ${INSTALL_DATA} VERSION = ${VERSION} __HEREDOC__ printf "COMPAT =" for comp in ${COMPAT}; do printf " %s/%s" "$PWD" "$comp" done printf "\n" echo "file Makefile.local: written" 1>&2 echo "file Makefile.local: written" 1>&3 exit 0