| 1 | #! /bin/sh |
| 2 | |
| 3 | # Shell script to build Makefile in a build directory. It must be called |
| 4 | # from inside the directory. It does its own checking of when to rebuild; it |
| 5 | # just got too horrendous to get it right in "make", because of the optionally |
| 6 | # existing configuration files. |
| 7 | # |
| 8 | # Copyright (c) The Exim Maintainers 2016 |
| 9 | |
| 10 | |
| 11 | # First off, get the OS type, and check that there is a make file for it. |
| 12 | |
| 13 | ostype=`../scripts/os-type -generic` || exit 1 |
| 14 | |
| 15 | if [ ! -r ../OS/Makefile-$ostype ] ; then |
| 16 | echo "" |
| 17 | echo "*** Sorry - operating system $ostype is not supported" |
| 18 | echo "*** See OS/Makefile-* for supported systems" 1>&2 |
| 19 | echo "" |
| 20 | exit 1 |
| 21 | fi |
| 22 | |
| 23 | # We also need the architecture type, in order to test for any architecture- |
| 24 | # specific configuration files. |
| 25 | |
| 26 | archtype=`../scripts/arch-type` || exit 1 |
| 27 | |
| 28 | # Now test for either the non-existence of Makefile, or for any of its |
| 29 | # components being newer. Note that the "newer" script gives the right |
| 30 | # answer (for our purposes) when the first file is non-existent. |
| 31 | |
| 32 | editme=../Local/Makefile |
| 33 | rebuild=yes |
| 34 | |
| 35 | if [ -f Makefile ] ; then |
| 36 | rebuild=no |
| 37 | if ../scripts/newer $editme Makefile || \ |
| 38 | ../scripts/newer $editme-$ostype Makefile || \ |
| 39 | ../scripts/newer $editme-$archtype Makefile || \ |
| 40 | ../scripts/newer $editme-$ostype-$archtype Makefile || \ |
| 41 | ../scripts/newer ../scripts/Configure-Makefile Makefile || \ |
| 42 | ../scripts/newer ../OS/Makefile-Base Makefile || \ |
| 43 | ../scripts/newer ../OS/Makefile-Default Makefile |
| 44 | then |
| 45 | rebuild=yes |
| 46 | fi |
| 47 | fi |
| 48 | |
| 49 | # If the "build" variable is set it means that a build name was explicitly |
| 50 | # given. Arrange to pick up a build-specific configuration file. |
| 51 | |
| 52 | if [ "X$build" != "X" ] ; then |
| 53 | mfb=Local/Makefile-$build |
| 54 | if ../scripts/newer $editme-$build Makefile ; then |
| 55 | rebuild=yes |
| 56 | fi |
| 57 | else |
| 58 | mfb= |
| 59 | fi |
| 60 | |
| 61 | |
| 62 | # If Makefile is up-to-date, no need to rebuild it. |
| 63 | |
| 64 | if [ $rebuild = no ] ; then |
| 65 | echo "\`Makefile' is up to date." |
| 66 | echo " " |
| 67 | exit |
| 68 | fi |
| 69 | |
| 70 | # Makefile needs to be rebuilt in the current directory by joining |
| 71 | # the generic default makefile, the OS base makefile, and then local |
| 72 | # generic, OS-specific, architecture-specific, and OS+architecture-specific |
| 73 | # makefiles, if they exist. These files all contain macro definitions, with |
| 74 | # later definitions overriding earlier ones. Make a temporary file first, in |
| 75 | # case things go wrong. A second temporary is needed for sorting out the |
| 76 | # default Perl stuff. Use short macro names to save typing. |
| 77 | |
| 78 | mf=Makefile |
| 79 | mft=$mf-t |
| 80 | mftt=$mf-tt |
| 81 | |
| 82 | look_mf=lookups/Makefile |
| 83 | look_mf_pre=${look_mf}.predynamic |
| 84 | look_mf_post=${look_mf}.postdynamic |
| 85 | |
| 86 | # Ensure the temporary does not exist and start the new one by setting |
| 87 | # the OSTYPE and ARCHTYPE variables. |
| 88 | |
| 89 | rm -f $mft $mftt $look_mf-t |
| 90 | (echo "OSTYPE=$ostype"; echo "ARCHTYPE=$archtype"; echo "") > $mft || exit 1 |
| 91 | |
| 92 | # Now concatenate the files to the temporary file. Copy the files using sed to |
| 93 | # remove comments, blank lines, and trailing white space. |
| 94 | |
| 95 | # BEWARE: a tab character is needed in the sed command below. It has had |
| 96 | # a nasty tendency to get lost in the past, causing a problem if a tab has |
| 97 | # actually been present in one of the files. Use a variable to hold a space |
| 98 | # and a tab to keep the tab in one place. |
| 99 | |
| 100 | st=' ' |
| 101 | |
| 102 | for f in OS/Makefile-Default \ |
| 103 | OS/Makefile-$ostype \ |
| 104 | Local/Makefile \ |
| 105 | Local/Makefile-$ostype \ |
| 106 | Local/Makefile-$archtype \ |
| 107 | Local/Makefile-$ostype-$archtype \ |
| 108 | $mfb |
| 109 | do if test -r ../$f |
| 110 | then echo "# From $f" |
| 111 | sed "/^#/d;/^[$st]*\$/d;s/[$st]*\$//" ../$f || exit 1 |
| 112 | echo "# End of $f" |
| 113 | echo "" |
| 114 | fi |
| 115 | done \ |
| 116 | | sed 's/^TMPDIR=/EXIM_&/' \ |
| 117 | >> $mft || exit 1 |
| 118 | |
| 119 | # handle pkg-config |
| 120 | # beware portability of extended regexps with sed. |
| 121 | |
| 122 | egrep "^[$st]*(AUTH|LOOKUP)_[A-Z0-9_]*[$st]*=[$st]*" $mft | \ |
| 123 | sed "s/[$st]*=/='/" | \ |
| 124 | sed "s/\$/'/" > $mftt |
| 125 | egrep "^[$st]*((USE_(OPENSSL|GNUTLS)_PC)|SUPPORT_TLS|USE_GNUTLS|PCRE_CONFIG|AVOID_GNUTLS_PKCS11)[$st]*=[$st]*" $mft | \ |
| 126 | sed "s/[$st]*=/='/" | \ |
| 127 | sed "s/\$/'/" >> $mftt |
| 128 | if test -s $mftt |
| 129 | then |
| 130 | ( |
| 131 | echo "# pkg-config fixups" |
| 132 | . ./$mftt |
| 133 | for var in `cut -d = -f 1 < $mftt`; do |
| 134 | case $var in |
| 135 | |
| 136 | USE_*_PC) |
| 137 | eval "pc_value=\"\$$var\"" |
| 138 | need_this='' |
| 139 | need_core='' |
| 140 | if [ ".$SUPPORT_TLS" = "." ]; then |
| 141 | # no TLS, not referencing |
| 142 | true |
| 143 | elif [ ".$var" = ".USE_GNUTLS_PC" ] && [ ".$USE_GNUTLS" != "." ]; then |
| 144 | need_this=t |
| 145 | need_core="gnutls-special" |
| 146 | elif [ ".$var" = ".USE_OPENSSL_PC" ] && [ ".$USE_GNUTLS" = "." ]; then |
| 147 | need_this=t |
| 148 | need_core=t |
| 149 | fi |
| 150 | if [ ".$need_this" != "." ]; then |
| 151 | tls_include=`pkg-config --cflags $pc_value` |
| 152 | if [ $? -ne 0 ]; then |
| 153 | echo >&2 "*** Missing pkg-config for package $pc_value (for Exim $var build option)" |
| 154 | exit 1 |
| 155 | fi |
| 156 | tls_libs=`pkg-config --libs $pc_value` |
| 157 | echo "TLS_INCLUDE=$tls_include" |
| 158 | echo "TLS_LIBS=$tls_libs" |
| 159 | # With hash.h pulling crypto into the core, we need to also handle that |
| 160 | if [ ".$need_this" = ".t" ]; then |
| 161 | echo "CFLAGS += $tls_include" |
| 162 | echo "LDFLAGS += $tls_libs" |
| 163 | elif [ ".$need_this" = ".gnutls-special" ]; then |
| 164 | if pkg-config --atleast-version=2.10 gnutls ; then |
| 165 | echo "CFLAGS += $tls_include" |
| 166 | echo "LDFLAGS += $tls_libs" |
| 167 | else |
| 168 | echo "CFLAGS += $(libgcrypt-config --cflags)" |
| 169 | echo "LDFLAGS += $(libgcrypt-config --libs)" |
| 170 | fi |
| 171 | fi |
| 172 | fi |
| 173 | ;; |
| 174 | |
| 175 | *_PC) |
| 176 | eval "pc_value=\"\$$var\"" |
| 177 | base=`echo $var | sed 's/_PC$//'` |
| 178 | eval "basevalue=\"\$$base\"" |
| 179 | if [ ".$basevalue" = "." ]; then |
| 180 | # not pulling in this module, _PC defined as default? Ignore |
| 181 | true |
| 182 | elif [ $basevalue = 2 ]; then |
| 183 | # module; handled in scripts/lookups-Makefile |
| 184 | true |
| 185 | else |
| 186 | # main binary |
| 187 | cflags=`pkg-config --cflags $pc_value` |
| 188 | if [ $? -ne 0 ]; then |
| 189 | echo >&2 "*** Missing pkg-config for package $pc_value (for Exim $var build option)" |
| 190 | exit 1 |
| 191 | fi |
| 192 | libs=`pkg-config --libs $pc_value` |
| 193 | if [ "$var" != "${var#LOOKUP_}" ]; then |
| 194 | echo "LOOKUP_INCLUDE += $cflags" |
| 195 | echo "LOOKUP_LIBS += $libs" |
| 196 | elif [ "$var" != "${var#AUTH_}" ]; then |
| 197 | echo "CFLAGS += $cflags" |
| 198 | echo "AUTH_LIBS += $libs" |
| 199 | else |
| 200 | echo >&2 "Don't know how to handle pkg-config for $var" |
| 201 | fi |
| 202 | fi |
| 203 | ;; |
| 204 | |
| 205 | PCRE_CONFIG) |
| 206 | case $PCRE_CONFIG in |
| 207 | yes|YES|y|Y) |
| 208 | cflags=`pcre-config --cflags` |
| 209 | if [ $? -ne 0 ]; then |
| 210 | echo >&2 "*** Missing pcre-config for regular expression support" |
| 211 | exit 1 |
| 212 | fi |
| 213 | libs=`pcre-config --libs` |
| 214 | if [ ".$cflags" != "." ]; then |
| 215 | echo "INCLUDE += $cflags" |
| 216 | fi |
| 217 | echo "PCRE_LIBS=$libs" |
| 218 | ;; |
| 219 | esac |
| 220 | ;; |
| 221 | |
| 222 | AVOID_GNUTLS_PKCS11) |
| 223 | echo "$var=yes" |
| 224 | ;; |
| 225 | |
| 226 | esac |
| 227 | done |
| 228 | echo "# End of pkg-config fixups" |
| 229 | echo |
| 230 | ) >> $mft |
| 231 | subexit=$? |
| 232 | if [ $subexit -ne 0 ]; then |
| 233 | exit $subexit |
| 234 | fi |
| 235 | fi |
| 236 | rm -f $mftt |
| 237 | |
| 238 | # make the lookups Makefile with the definitions |
| 239 | # the auxiliary script generates $look_mf_post from $look_mf_pre |
| 240 | |
| 241 | cp ../src/lookups/Makefile $look_mf_pre |
| 242 | ../scripts/lookups-Makefile |
| 243 | |
| 244 | # See if there is a definition of EXIM_PERL in what we have built so far. |
| 245 | # If so, run Perl to find the default values for PERL_CC, PERL_CCOPTS, |
| 246 | # and PERL_LIBS. These need to be put at the top of the Makefile, so we rename |
| 247 | # what we have so far and then copy it afterwards. Use the value of PERL_COMMAND |
| 248 | # if it has been defined. |
| 249 | |
| 250 | EXIM_PERL=`grep EXIM_PERL $mft` |
| 251 | |
| 252 | PERL_COMMAND=`grep PERL_COMMAND $mft | sed -e "\\$!d;s/^[$st]*PERL_COMMAND[$st]*=[$st]*//"` |
| 253 | if [ "${PERL_COMMAND}" = "" ] ; then |
| 254 | PERL_COMMAND='perl' |
| 255 | fi |
| 256 | |
| 257 | if [ "${EXIM_PERL}" != "" ] ; then |
| 258 | testperl=`$PERL_COMMAND --version` |
| 259 | if [ "$testperl" = "" ] ; then |
| 260 | echo "*** EXIM_PERL is set, but '$PERL_COMMAND --version' failed" |
| 261 | exit 1 |
| 262 | fi |
| 263 | |
| 264 | EXTUTILS_EMBED_NOT_INSTALLED=`$PERL_COMMAND -MExtUtils::Embed -e ";" 2>&1` |
| 265 | if [ "${EXTUTILS_EMBED_NOT_INSTALLED}" != "" ] ; then |
| 266 | echo "Please install ExtUtils::Embed for $PERL_COMMAND" |
| 267 | exit 1; |
| 268 | fi |
| 269 | |
| 270 | mv $mft $mftt |
| 271 | echo "PERL_CC=`$PERL_COMMAND -MConfig -e 'print $Config{cc}'`" >>$mft |
| 272 | echo "PERL_CCOPTS=`$PERL_COMMAND -MExtUtils::Embed -e ccopts`" >>$mft |
| 273 | echo "PERL_LIBS=`$PERL_COMMAND -MExtUtils::Embed -e ldopts`" >>$mft |
| 274 | echo "" >>$mft |
| 275 | cat $mftt >> $mft |
| 276 | rm -f $mftt |
| 277 | fi |
| 278 | |
| 279 | # Record the build variable in the Makefile. |
| 280 | |
| 281 | echo "build=$build" >>$mft |
| 282 | echo "" >>$mft |
| 283 | |
| 284 | # Finally, join on the generic base make file, which contains the actual |
| 285 | # rules and stuff. |
| 286 | |
| 287 | echo "# From ../OS/Makefile-Base" >> $mft |
| 288 | cat ../OS/Makefile-Base >> $mft || exit 1 |
| 289 | |
| 290 | # If the new makefile is the same as the existing one, say so, and just |
| 291 | # update the timestamp. Otherwise remove the old and install the new. |
| 292 | |
| 293 | if [ -s $mf ] && cmp -s $mft $mf && [ -s $look_mf ] && cmp -s $look_mf_post $look_mf |
| 294 | then echo ">>> rebuilt $mf unchanged" |
| 295 | echo " " |
| 296 | touch $mf || exit |
| 297 | rm -f $mft $look_mf_pre $look_mf_post |
| 298 | elif rm -f $mf $look_mf $look_mf_pre |
| 299 | mv $mft $mf |
| 300 | mv $look_mf_post $look_mf |
| 301 | then echo ">>> New $mf & $look_mf installed" |
| 302 | echo '>>> Use "make makefile" if you need to force rebuilding of the makefile' |
| 303 | echo " " |
| 304 | else echo " " |
| 305 | echo "*** Failed to install $mf - see $mft" |
| 306 | echo " (or $look_mft)" |
| 307 | echo " " |
| 308 | exit 1; |
| 309 | fi |
| 310 | |
| 311 | # vim: set ft=sh : |
| 312 | # End of Configure-Makefile |