Mon, 01 Dec 2025 21:27:09 +0100
resolve dependencies between standard config vars
fixes #768
#!/bin/sh # some utility functions isplatform() { for p in $PLATFORM do if [ "$p" = "$1" ]; then return 0 fi done return 1 } notisplatform() { for p in $PLATFORM do if [ "$p" = "$1" ]; then return 1 fi done return 0 } istoolchain() { for t in $TOOLCHAIN do if [ "$t" = "$1" ]; then return 0 fi done return 1 } notistoolchain() { for t in $TOOLCHAIN do if [ "$t" = "$1" ]; then return 1 fi done return 0 } # clean abort abort_configure() { rm -Rf "$TEMP_DIR" exit 1 } # Test for availability of pkg-config PKG_CONFIG=`command -v pkg-config` : ${PKG_CONFIG:="false"} # Simple uname based platform detection # $PLATFORM is used for platform dependent dependency selection OS=`uname -s` OS_VERSION=`uname -r` ARCH=`uname -m` printf "detect platform... " if [ "$OS" = "SunOS" ]; then PLATFORM="solaris sunos unix svr4" elif [ "$OS" = "Linux" ]; then PLATFORM="linux unix" elif [ "$OS" = "FreeBSD" ]; then PLATFORM="freebsd bsd unix" elif [ "$OS" = "OpenBSD" ]; then PLATFORM="openbsd bsd unix" elif [ "$OS" = "NetBSD" ]; then PLATFORM="netbsd bsd unix" elif [ "$OS" = "Darwin" ]; then PLATFORM="macos osx bsd unix" elif echo "$OS" | grep -i "MINGW" > /dev/null; then PLATFORM="windows mingw" fi : ${PLATFORM:="unix"} PLATFORM_NAME=`echo "$PLATFORM" | cut -f1 -d' ' -` echo "$PLATFORM_NAME" # help text printhelp() { echo "Usage: $0 [OPTIONS]..." if [ $has_config_vars__ -eq 1 ] ; then echo echo "Configuration:" fi if true \ ; then : if [ -z "$prefix__described__" ] ; then prefix__described__=1 cat << '__EOF__' --prefix path prefix for architecture-independent files [/usr] __EOF__ fi if [ -z "$exec_prefix__described__" ] ; then exec_prefix__described__=1 cat << '__EOF__' --exec-prefix path prefix for architecture-dependent files [PREFIX] __EOF__ fi if [ -z "$libdir__described__" ] ; then libdir__described__=1 cat << '__EOF__' --libdir object code libraries [EPREFIX/lib] __EOF__ fi fi if true \ && notisplatform "mingw" \ ; then : fi if true \ && isplatform "mingw" \ ; then : fi cat << '__EOF__' Build Types: --debug add extra compile flags for debug builds --release add extra compile flags for release builds Optional Features: --disable-pg __EOF__ abort_configure } # create temporary directory TEMP_DIR=".tmp-`uname -n`" rm -Rf "$TEMP_DIR" if mkdir -p "$TEMP_DIR"; then : else echo "Cannot create tmp dir $TEMP_DIR" echo "Abort" exit 1 fi touch "$TEMP_DIR/options" touch "$TEMP_DIR/features" # config variables has_config_vars__=0 if true \ ; then : if [ -z "$prefix__initialized__" ] ; then has_config_vars__=1 prefix__initialized__=1 prefix='/usr' fi if [ -z "$exec_prefix__initialized__" ] ; then has_config_vars__=1 exec_prefix__initialized__=1 exec_prefix='' fi if [ -z "$libdir__initialized__" ] ; then has_config_vars__=1 libdir__initialized__=1 libdir='' fi if [ -z "$HOST__initialized__" ] ; then has_config_vars__=1 HOST__initialized__=1 HOST=`uname -n` fi fi if true \ && notisplatform "mingw" \ ; then : if [ -z "$PWD__initialized__" ] ; then has_config_vars__=1 PWD__initialized__=1 PWD='pwd' fi fi if true \ && isplatform "mingw" \ ; then : if [ -z "$PWD__initialized__" ] ; then has_config_vars__=1 PWD__initialized__=1 PWD='pwd -W' fi fi # features FEATURE_PG=auto # # parse arguments # BUILD_TYPE="default" for ARG in "$@" do case "$ARG" in "--prefix="*) prefix=${ARG#--prefix=} ;; "--exec-prefix="*) exec_prefix=${ARG#--exec-prefix=} ;; "--libdir="*) libdir=${ARG#--libdir=} ;; "--help"*) printhelp ;; "--debug") BUILD_TYPE="debug" ;; "--release") BUILD_TYPE="release" ;; "--enable-pg") FEATURE_PG=on ;; "--disable-pg") unset FEATURE_PG ;; "-"*) echo "unknown option: $ARG"; abort_configure ;; esac done # toolchain detection utilities . make/toolchain.sh # check languages lang_c= lang_cpp= if detect_cpp_compiler ; then lang_cpp=1 fi if detect_c_compiler ; then lang_c=1 fi # set defaults for dir variables : ${exec_prefix:="$prefix"} : ${bindir:='${exec_prefix}/bin'} : ${sbindir:='${exec_prefix}/sbin'} : ${libdir:='${exec_prefix}/lib'} : ${libexecdir:='${exec_prefix}/libexec'} : ${datarootdir:='${prefix}/share'} : ${datadir:='${datarootdir}'} : ${sharedstatedir:='${prefix}/com'} if [ -z "$sysconfdir" ]; then if [ "$prefix" = '/usr' ]; then sysconfdir='/etc' else sysconfdir='${prefix}/etc' fi fi if [ -z "$localstatedir" ]; then if [ "$prefix" = '/usr' ]; then localstatedir='/var' else localstatedir='${prefix}/var' fi fi if [ -z "$runstatedir" ]; then if [ "$prefix" = '/usr' ]; then runstatedir='/var/run' else runstatedir='${prefix}/var' fi fi : ${includedir:='${prefix}/include'} : ${infodir:='${datarootdir}/info'} : ${mandir:='${datarootdir}/man'} : ${localedir:='${datarootdir}/locale'} # check if a config.site exists and load it CONFIG_SITE_OK=0 if [ -n "$CONFIG_SITE" ]; then # CONFIG_SITE may contain space separated file names for cs in $CONFIG_SITE; do printf "loading defaults from $cs... " if [ -f "$cs" ]; then . "$cs" echo ok CONFIG_SITE_OK=1 break else echo "not found" fi done elif [ -f "$prefix/share/config.site" ]; then printf "loading site defaults... " . "$prefix/share/config.site" echo ok CONFIG_SITE_OK=1 elif [ -f "$prefix/etc/config.site" ]; then printf "loading site defaults... " . "$prefix/etc/config.site" echo ok CONFIG_SITE_OK=1 fi if [ $CONFIG_SITE_OK -eq 0 ]; then # try to detect the correct libdir on our own, except it was changed by the user if [ "$libdir" = '${exec_prefix}/lib' ] ; then if [ "$TOOLCHAIN_WSIZE" = "64" ] ; then if [ "$OS" = "SunOS" ]; then [ -d "${exec_prefix}/lib/64" ] && libdir='${exec_prefix}/lib/64' else [ -d "${exec_prefix}/lib64" ] && libdir='${exec_prefix}/lib64' fi elif [ "$TOOLCHAIN_WSIZE" = "32" ] ; then if [ "$OS" = "SunOS" ]; then [ -d "${exec_prefix}/lib/32" ] && libdir='${exec_prefix}/lib/32' else [ -d "${exec_prefix}/lib32" ] && libdir='${exec_prefix}/lib32' fi fi fi fi # generate vars.mk if [ $has_config_vars__ -eq 1 ]; then echo '# configuration' > "$TEMP_DIR/vars.mk" echo "prefix=$prefix" >> "$TEMP_DIR/vars.mk" echo "exec_prefix=$exec_prefix" >> "$TEMP_DIR/vars.mk" echo "libdir=$libdir" >> "$TEMP_DIR/vars.mk" echo "HOST=$HOST" >> "$TEMP_DIR/vars.mk" echo "PWD=$PWD" >> "$TEMP_DIR/vars.mk" echo >> "$TEMP_DIR/vars.mk" fi # # DEPENDENCIES # # create buffer for make variables required by dependencies echo > "$TEMP_DIR/make.mk" test_pkg_config() { if "$PKG_CONFIG" --exists "$1" ; then : else return 1 ; fi if [ -z "$2" ] || "$PKG_CONFIG" --atleast-version="$2" "$1" ; then : else return 1 ; fi if [ -z "$3" ] || "$PKG_CONFIG" --exact-version="$3" "$1" ; then : else return 1 ; fi if [ -z "$4" ] || "$PKG_CONFIG" --max-version="$4" "$1" ; then : else return 1 ; fi return 0 } print_check_msg() { if [ -z "$1" ]; then shift printf "$@" fi } dependency_error_cpp() { print_check_msg "$dep_checked_cpp" "checking for cpp... " # dependency cpp while true do if [ -z "$lang_cpp" ] ; then break fi print_check_msg "$dep_checked_cpp" "yes\n" dep_checked_cpp=1 return 1 done print_check_msg "$dep_checked_cpp" "no\n" dep_checked_cpp=1 return 0 } dependency_error_libpq() { print_check_msg "$dep_checked_libpq" "checking for libpq... " # dependency libpq while true do if [ -z "$PKG_CONFIG" ]; then break fi if test_pkg_config "libpq" "" "" "" ; then TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags libpq`" TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs libpq`" else break fi print_check_msg "$dep_checked_libpq" "yes\n" dep_checked_libpq=1 return 1 done print_check_msg "$dep_checked_libpq" "no\n" dep_checked_libpq=1 return 0 } dependency_error_openssl() { print_check_msg "$dep_checked_openssl" "checking for openssl... " # dependency openssl toolchain="clang" while true do if notistoolchain "clang"; then break fi if [ -z "$lang_c" ] ; then break fi if [ -z "$PKG_CONFIG" ]; then break fi if test_pkg_config "openssl" "" "" "" ; then TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags openssl`" TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs openssl`" else break fi TEMP_CFLAGS="$TEMP_CFLAGS -DOPENSSL_CLANG" print_check_msg "$dep_checked_openssl" "yes\n" dep_checked_openssl=1 return 1 done # dependency openssl platform="bsd" while true do if notisplatform "bsd"; then break fi TEMP_LDFLAGS="$TEMP_LDFLAGS -lssl -lcrypto" print_check_msg "$dep_checked_openssl" "yes\n" dep_checked_openssl=1 return 1 done # dependency openssl while true do if [ -z "$lang_c" ] ; then break fi if [ -z "$PKG_CONFIG" ]; then break fi if test_pkg_config "openssl" "" "" "" ; then TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags openssl`" TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs openssl`" else break fi print_check_msg "$dep_checked_openssl" "yes\n" dep_checked_openssl=1 return 1 done print_check_msg "$dep_checked_openssl" "no\n" dep_checked_openssl=1 return 0 } dependency_error_libxml2() { print_check_msg "$dep_checked_libxml2" "checking for libxml2... " # dependency libxml2 platform="macos" while true do if notisplatform "macos"; then break fi if tmp_flags=`xml2-config --cflags` ; then TEMP_CFLAGS="$TEMP_CFLAGS $tmp_flags" else break fi if tmp_flags=`xml2-config --libs` ; then TEMP_LDFLAGS="$TEMP_LDFLAGS $tmp_flags" else break fi print_check_msg "$dep_checked_libxml2" "yes\n" dep_checked_libxml2=1 return 1 done # dependency libxml2 while true do if [ -z "$PKG_CONFIG" ]; then break fi if test_pkg_config "libxml-2.0" "" "" "" ; then TEMP_CFLAGS="$TEMP_CFLAGS `"$PKG_CONFIG" --cflags libxml-2.0`" TEMP_LDFLAGS="$TEMP_LDFLAGS `"$PKG_CONFIG" --libs libxml-2.0`" else break fi print_check_msg "$dep_checked_libxml2" "yes\n" dep_checked_libxml2=1 return 1 done print_check_msg "$dep_checked_libxml2" "no\n" dep_checked_libxml2=1 return 0 } # start collecting dependency information echo > "$TEMP_DIR/flags.mk" DEPENDENCIES_FAILED= ERROR=0 # unnamed dependencies TEMP_CFLAGS="$CFLAGS" TEMP_CXXFLAGS="$CXXFLAGS" TEMP_LDFLAGS="$LDFLAGS" while true do while true do if [ -z "$lang_c" ] ; then ERROR=1 break fi break done break done while true do if notistoolchain "gcc"; then break fi while true do TEMP_CFLAGS="$TEMP_CFLAGS -DTOOLCHAIN_GCC" break done break done while true do if notistoolchain "clang"; then break fi while true do TEMP_CFLAGS="$TEMP_CFLAGS -DTOOLCHAIN_CLANG" break done break done while true do if isplatform "gcc" || istoolchain "gcc"; then break fi while true do TEMP_CFLAGS="$TEMP_CFLAGS -DNOT_TOOLCHAIN_GCC" break done break done while true do if isplatform "clang" || istoolchain "clang"; then break fi while true do TEMP_CFLAGS="$TEMP_CFLAGS -DNOT_TOOLCHAIN_CLANG" break done break done # build type if [ "$BUILD_TYPE" = "debug" ]; then TEMP_CFLAGS="\${DEBUG_CFLAGS} $TEMP_CFLAGS" TEMP_CXXFLAGS="\${DEBUG_CXXFLAGS} $TEMP_CXXFLAGS" fi if [ "$BUILD_TYPE" = "release" ]; then TEMP_CFLAGS="\${RELEASE_CFLAGS} $TEMP_CFLAGS" TEMP_CXXFLAGS="\${RELEASE_CXXFLAGS} $TEMP_CXXFLAGS" fi # add general dependency flags to flags.mk echo "# general flags" >> "$TEMP_DIR/flags.mk" if [ -n "${TEMP_CFLAGS}" ] && [ -n "$lang_c" ]; then echo "CFLAGS += $TEMP_CFLAGS" >> "$TEMP_DIR/flags.mk" fi if [ -n "${TEMP_CXXFLAGS}" ] && [ -n "$lang_cpp" ]; then echo "CXXFLAGS += $TEMP_CXXFLAGS" >> "$TEMP_DIR/flags.mk" fi if [ -n "${TEMP_LDFLAGS}" ]; then echo "LDFLAGS += $TEMP_LDFLAGS" >> "$TEMP_DIR/flags.mk" fi # # OPTION VALUES # # # TARGETS # echo >> "$TEMP_DIR/flags.mk" echo "configuring global target" echo "# flags for unnamed target" >> "$TEMP_DIR/flags.mk" TEMP_CFLAGS= TEMP_CXXFLAGS= TEMP_LDFLAGS= if dependency_error_libxml2; then DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED libxml2 " ERROR=1 fi if dependency_error_openssl; then DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED openssl " ERROR=1 fi # Features if [ -n "$FEATURE_PG" ]; then # check dependency if dependency_error_libpq ; then # "auto" features can fail and are just disabled in this case if [ "$FEATURE_PG" = "auto" ]; then DISABLE_FEATURE_PG=1 else DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED libpq " ERROR=1 fi fi # check dependency if dependency_error_cpp ; then # "auto" features can fail and are just disabled in this case if [ "$FEATURE_PG" = "auto" ]; then DISABLE_FEATURE_PG=1 else DEPENDENCIES_FAILED="$DEPENDENCIES_FAILED cpp " ERROR=1 fi fi if [ -n "$DISABLE_FEATURE_PG" ]; then unset FEATURE_PG fi fi if [ -n "$FEATURE_PG" ]; then : else : fi if [ -n "${TEMP_CFLAGS}" ] && [ -n "$lang_c" ]; then echo "CFLAGS += $TEMP_CFLAGS" >> "$TEMP_DIR/flags.mk" fi if [ -n "${TEMP_CXXFLAGS}" ] && [ -n "$lang_cpp" ]; then echo "CXXFLAGS += $TEMP_CXXFLAGS" >> "$TEMP_DIR/flags.mk" fi if [ -n "${TEMP_LDFLAGS}" ]; then echo "LDFLAGS += $TEMP_LDFLAGS" >> "$TEMP_DIR/flags.mk" fi # final result if [ $ERROR -ne 0 ]; then echo echo "Error: Unresolved dependencies" echo "$DEPENDENCIES_FAILED" abort_configure fi echo "configure finished" echo echo "Toolchain:" echo " name: $TOOLCHAIN_NAME" if [ -n "$TOOLCHAIN_CC" ]; then echo " cc: $TOOLCHAIN_CC" fi if [ -n "$TOOLCHAIN_CXX" ]; then echo " cxx: $TOOLCHAIN_CXX" fi if [ -n "$TOOLCHAIN_WSIZE" ]; then echo " word size: $TOOLCHAIN_WSIZE bit" fi if [ -n "$TOOLCHAIN_CSTD" ]; then echo " default C std: $TOOLCHAIN_CSTD" fi if [ $has_config_vars__ -eq 1 ]; then echo echo "Config:" if [ -n "$prefix__initialized__" ]; then printf ' %-16s' 'prefix:' echo "$prefix" fi if [ -n "$exec_prefix__initialized__" ]; then printf ' %-16s' 'exec-prefix:' echo "$exec_prefix" fi if [ -n "$libdir__initialized__" ]; then printf ' %-16s' 'libdir:' echo "$libdir" fi fi echo echo "Features:" printf ' %-16s' 'pg:' if [ -n "$FEATURE_PG" ]; then echo 'on' else echo 'off' fi echo # generate the config.mk file pwd=`pwd` cat > "$TEMP_DIR/config.mk" << __EOF__ # # config.mk generated by: # pwd: $pwd # $0 $@ # __EOF__ write_toolchain_defaults "$TEMP_DIR/toolchain.mk" cat "$TEMP_DIR/config.mk" "$TEMP_DIR/vars.mk" "$TEMP_DIR/toolchain.mk" "$TEMP_DIR/flags.mk" "$TEMP_DIR/make.mk" > config.mk rm -Rf "$TEMP_DIR"