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Diffstat (limited to '')
| -rwxr-xr-x | scripts/Configure-Makefile | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/scripts/Configure-Makefile b/scripts/Configure-Makefile new file mode 100755 index 0000000..61368ec --- /dev/null +++ b/scripts/Configure-Makefile @@ -0,0 +1,340 @@ +#! /bin/sh +LC_ALL=C +export LC_ALL + +# Shell script to build Makefile in a build directory. It must be called +# from inside the directory. It does its own checking of when to rebuild; it +# just got too horrendous to get it right in "make", because of the optionally +# existing configuration files. +# +# Copyright (c) The Exim Maintainers 1995 - 2020 + + +# First off, get the OS type, and check that there is a make file for it. + +ostype=`../scripts/os-type -generic` || exit 1 + +if [ ! -r ../OS/Makefile-$ostype ] ; then + echo "" + echo "*** Sorry - operating system $ostype is not supported" + echo "*** See OS/Makefile-* for supported systems" 1>&2 + echo "" + exit 1 +fi + +# We also need the architecture type, in order to test for any architecture- +# specific configuration files. + +archtype=`../scripts/arch-type` || exit 1 + +# Now test for either the non-existence of Makefile, or for any of its +# components being newer. Note that the "newer" script gives the right +# answer (for our purposes) when the first file is non-existent. + +editme=../Local/Makefile +rebuild=yes + +if [ -f Makefile ] ; then + rebuild=no + if ../scripts/newer $editme Makefile || \ + ../scripts/newer $editme-$ostype Makefile || \ + ../scripts/newer $editme-$archtype Makefile || \ + ../scripts/newer $editme-$ostype-$archtype Makefile || \ + ../scripts/newer ../scripts/Configure-Makefile Makefile || \ + ../scripts/newer ../OS/Makefile-Base Makefile || \ + ../scripts/newer ../OS/Makefile-Default Makefile + then + rebuild=yes + fi +fi + +# If the "build" variable is set it means that a build name was explicitly +# given. Arrange to pick up a build-specific configuration file. + +if [ "X$build" != "X" ] ; then + mfb=Local/Makefile-$build + if ../scripts/newer $editme-$build Makefile ; then + rebuild=yes + fi +else + mfb= +fi + + +# If Makefile is up-to-date, no need to rebuild it. + +if [ $rebuild = no ] ; then + echo "\`Makefile' is up to date." + echo " " + exit +fi + +# Makefile needs to be rebuilt in the current directory by joining +# the generic default makefile, the OS base makefile, and then local +# generic, OS-specific, architecture-specific, and OS+architecture-specific +# makefiles, if they exist. These files all contain macro definitions, with +# later definitions overriding earlier ones. Make a temporary file first, in +# case things go wrong. A second temporary is needed for sorting out the +# default Perl stuff. Use short macro names to save typing. + +mf=Makefile +mft=$mf-t +mftt=$mf-tt +mftepcp=$mf-tepcp +mftepcp2=$mf-tepcp2 + +look_mf=lookups/Makefile +look_mf_pre=${look_mf}.predynamic +look_mf_post=${look_mf}.postdynamic + +# Ensure the temporary does not exist and start the new one by setting +# the OSTYPE and ARCHTYPE variables. + +rm -f $mft $mftt $mftepcp $mftepcp2 $look_mf-t +(echo "OSTYPE=$ostype"; echo "ARCHTYPE=$archtype"; echo "") > $mft || exit 1 + +# Now concatenate the files to the temporary file. Copy the files using sed to +# remove comments, blank lines, and trailing white space. + +# BEWARE: a tab character is needed in the sed command below. It has had +# a nasty tendency to get lost in the past, causing a problem if a tab has +# actually been present in one of the files. Use a variable to hold a space +# and a tab to keep the tab in one place. + +st=' ' + +for f in OS/Makefile-Default \ + OS/Makefile-$ostype \ + Local/Makefile \ + Local/Makefile-$ostype \ + Local/Makefile-$archtype \ + Local/Makefile-$ostype-$archtype \ + $mfb +do if test -r ../$f + then echo "# From $f" + sed "/^#/d;/^[$st]*\$/d;s/[$st]*\$//" ../$f || exit 1 + echo "# End of $f" + echo "" + fi +done \ + | sed 's/^TMPDIR=/EXIM_&/' \ + >> $mft || exit 1 + +# handle PKG_CONFIG_PATH because we need it in our env, and we want to handle +# wildcards; note that this logic means all setting _appends_ values, never +# replacing; if that's a problem, we can revisit. +sed -n "s/^[$st]*PKG_CONFIG_PATH[$st]*[+]*=[$st]*//p" $mft | \ + sed "s/[$st]*\$//" >> $mftepcp +if test -s ./$mftepcp +then + # expand any wildcards and strip spaces, to make it a real PATH-like variable + ( IFS=":${IFS-$st}"; for P in `cat ./$mftepcp`; do echo "$P"; done ) | xargs | sed "s/[$st]/:/g" >./$mftepcp2 + sed "s/^/PKG_CONFIG_PATH='/" < ./$mftepcp2 | sed "s/\$/'/" > ./$mftepcp + . ./$mftepcp + export PKG_CONFIG_PATH + egrep -v "^[$st]*PKG_CONFIG_PATH[$st]*=" ./$mft > ./$mftt + rm -f ./$mft + ( + echo "# Collapsed PKG_CONFIG_PATH in build-prep:" + sed "s/'//g" ./$mftepcp + echo "# End of collapsed PKG_CONFIG_PATH" + echo "" + cat ./$mftt + ) > ./$mft + rm -f ./$mftt +fi +rm -f ./$mftepcp ./$mftepcp2 + +# handle pkg-config +# beware portability of extended regexps with sed. +egrep "^[$st]*(AUTH|LOOKUP)_[A-Z0-9_]*[$st]*=[$st]*" $mft | \ + sed "s/[$st]*=/='/" | \ + sed "s/\$/'/" > $mftt +egrep "^[$st]*((USE_(OPENSSL|GNUTLS)_PC)|SUPPORT_TLS|USE_GNUTLS|PCRE_CONFIG|AVOID_GNUTLS_PKCS11)[$st]*=[$st]*" $mft | \ + sed "s/[$st]*=/='/" | \ + sed "s/\$/'/" >> $mftt +if test -s $mftt +then + ( + echo "# pkg-config fixups" + . ./$mftt + for var in `cut -d = -f 1 < $mftt`; do + case $var in + + USE_*_PC) + eval "pc_value=\"\$$var\"" + need_this='' + need_core='' + if [ ".$DISABLE_TLS" = .yes ]; then + # no TLS, not referencing + true + elif [ ".$var" = ".USE_GNUTLS_PC" ] && [ ".$USE_GNUTLS" != "." ]; then + need_this=t + need_core="gnutls-special" + elif [ ".$var" = ".USE_OPENSSL_PC" ] && [ ".$USE_GNUTLS" = "." ]; then + need_this=t + need_core=t + fi + if [ ".$need_this" != "." ]; then + tls_include=`pkg-config --cflags $pc_value` + if [ $? -ne 0 ]; then + echo >&2 "*** Missing pkg-config for package $pc_value (for Exim $var build option)" + exit 1 + fi + tls_libs=`pkg-config --libs $pc_value` + echo "TLS_INCLUDE=$tls_include" + echo "TLS_LIBS=$tls_libs" + # With hash.h pulling crypto into the core, we need to also handle that + if [ ".$need_this" = ".t" ]; then + echo "CFLAGS += $tls_include" + echo "LDFLAGS += $tls_libs" + elif [ ".$need_this" = ".gnutls-special" ]; then + if pkg-config --atleast-version=2.10 gnutls ; then + echo "CFLAGS += $tls_include" + echo "LDFLAGS += $tls_libs" + else + echo "CFLAGS += `libgcrypt-config --cflags`" + echo "LDFLAGS += `libgcrypt-config --libs`" + fi + fi + fi + ;; + + *_PC) + eval "pc_value=\"\$$var\"" + base=`echo $var | sed 's/_PC$//'` + eval "basevalue=\"\$$base\"" + if [ ".$basevalue" = "." ]; then + # not pulling in this module, _PC defined as default? Ignore + true + elif [ $basevalue = 2 ]; then + # module; handled in scripts/lookups-Makefile + true + else + # main binary + cflags=`pkg-config --cflags $pc_value` + if [ $? -ne 0 ]; then + echo >&2 "*** Missing pkg-config for package $pc_value (for Exim $var build option)" + exit 1 + fi + libs=`pkg-config --libs $pc_value` + if [ "$var" != "${var#LOOKUP_}" ]; then + echo "LOOKUP_INCLUDE += $cflags" + echo "LOOKUP_LIBS += $libs" + elif [ "$var" != "${var#AUTH_}" ]; then + echo "CFLAGS += $cflags" + echo "AUTH_LIBS += $libs" + else + echo >&2 "Don't know how to handle pkg-config for $var" + fi + fi + ;; + + PCRE_CONFIG) + case $PCRE_CONFIG in + yes|YES|y|Y) + cflags=`pcre-config --cflags` + if [ $? -ne 0 ]; then + echo >&2 "*** Missing pcre-config for regular expression support" + exit 1 + fi + libs=`pcre-config --libs` + if [ ".$cflags" != "." ]; then + echo "INCLUDE += $cflags" + fi + echo "PCRE_LIBS=$libs" + ;; + esac + ;; + + AVOID_GNUTLS_PKCS11) + echo "$var=yes" + ;; + + esac + done + echo "# End of pkg-config fixups" + echo + ) >> $mft + subexit=$? + if [ $subexit -ne 0 ]; then + exit $subexit + fi +fi +rm -f $mftt + +# make the lookups Makefile with the definitions +# the auxiliary script generates $look_mf_post from $look_mf_pre + +cp ../src/lookups/Makefile $look_mf_pre +../scripts/lookups-Makefile + +# See if there is a definition of EXIM_PERL in what we have built so far. +# If so, run Perl to find the default values for PERL_CC, PERL_CCOPTS, +# and PERL_LIBS. These need to be put at the top of the Makefile, so we rename +# what we have so far and then copy it afterwards. Use the value of PERL_COMMAND +# if it has been defined. + +EXIM_PERL=`grep EXIM_PERL $mft` + +PERL_COMMAND=`grep PERL_COMMAND $mft | sed -e "\\$!d;s/^[$st]*PERL_COMMAND[$st]*=[$st]*//"` +if [ "${PERL_COMMAND}" = "" ] ; then + PERL_COMMAND='perl' +fi + +if [ "${EXIM_PERL}" != "" ] ; then + testperl=`$PERL_COMMAND --version` + if [ "$testperl" = "" ] ; then + echo "*** EXIM_PERL is set, but '$PERL_COMMAND --version' failed" + exit 1 + fi + + EXTUTILS_EMBED_NOT_INSTALLED=`$PERL_COMMAND -MExtUtils::Embed -e ";" 2>&1` + if [ "${EXTUTILS_EMBED_NOT_INSTALLED}" != "" ] ; then + echo "Please install ExtUtils::Embed for $PERL_COMMAND" + exit 1; + fi + + mv $mft $mftt + echo "PERL_CC=`$PERL_COMMAND -MConfig -e 'print $Config{cc}'`" >>$mft + echo "PERL_CCOPTS=`$PERL_COMMAND -MExtUtils::Embed -e ccopts`" >>$mft + echo "PERL_LIBS=`$PERL_COMMAND -MExtUtils::Embed -e ldopts`" >>$mft + echo "" >>$mft + cat $mftt >> $mft + rm -f $mftt +fi + +# Record the build variable in the Makefile. + +echo "build=$build" >>$mft +echo "" >>$mft + +# Finally, join on the generic base make file, which contains the actual +# rules and stuff. + +echo "# From ../OS/Makefile-Base" >> $mft +cat ../OS/Makefile-Base >> $mft || exit 1 + +# If the new makefile is the same as the existing one, say so, and just +# update the timestamp. Otherwise remove the old and install the new. + +if [ -s $mf ] && cmp -s $mft $mf && [ -s $look_mf ] && cmp -s $look_mf_post $look_mf +then echo ">>> rebuilt $mf unchanged" + echo " " + touch $mf || exit + rm -f $mft $look_mf_pre $look_mf_post +elif rm -f $mf $look_mf $look_mf_pre + mv $mft $mf + mv $look_mf_post $look_mf +then echo ">>> New $mf & $look_mf installed" + echo '>>> Use "make makefile" if you need to force rebuilding of the makefile' + echo " " +else echo " " + echo "*** Failed to install $mf - see $mft" + echo " (or $look_mft)" + echo " " + exit 1; +fi + +# vim: set ft=sh : +# End of Configure-Makefile |