OpenSSL: fix bulid on older library versions
[exim.git] / src / scripts / Configure-Makefile
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61ec970d 1#! /bin/sh
120854c1
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2LC_ALL=C
3export LC_ALL
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4
5# Shell script to build Makefile in a build directory. It must be called
6# from inside the directory. It does its own checking of when to rebuild; it
7# just got too horrendous to get it right in "make", because of the optionally
8# existing configuration files.
80fea873 9#
f9ba5e22 10# Copyright (c) The Exim Maintainers 1995 - 2018
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11
12
13# First off, get the OS type, and check that there is a make file for it.
14
15ostype=`../scripts/os-type -generic` || exit 1
16
17if [ ! -r ../OS/Makefile-$ostype ] ; then
18 echo ""
19 echo "*** Sorry - operating system $ostype is not supported"
20 echo "*** See OS/Makefile-* for supported systems" 1>&2
21 echo ""
22 exit 1
23fi
24
25# We also need the architecture type, in order to test for any architecture-
26# specific configuration files.
27
28archtype=`../scripts/arch-type` || exit 1
29
30# Now test for either the non-existence of Makefile, or for any of its
31# components being newer. Note that the "newer" script gives the right
32# answer (for our purposes) when the first file is non-existent.
33
34editme=../Local/Makefile
35rebuild=yes
36
37if [ -f Makefile ] ; then
38 rebuild=no
39 if ../scripts/newer $editme Makefile || \
40 ../scripts/newer $editme-$ostype Makefile || \
41 ../scripts/newer $editme-$archtype Makefile || \
42 ../scripts/newer $editme-$ostype-$archtype Makefile || \
43 ../scripts/newer ../scripts/Configure-Makefile Makefile || \
44 ../scripts/newer ../OS/Makefile-Base Makefile || \
45 ../scripts/newer ../OS/Makefile-Default Makefile
46 then
47 rebuild=yes
48 fi
49fi
50
51# If the "build" variable is set it means that a build name was explicitly
52# given. Arrange to pick up a build-specific configuration file.
53
54if [ "X$build" != "X" ] ; then
55 mfb=Local/Makefile-$build
56 if ../scripts/newer $editme-$build Makefile ; then
57 rebuild=yes
58 fi
59else
60 mfb=
61fi
62
63
64# If Makefile is up-to-date, no need to rebuild it.
65
66if [ $rebuild = no ] ; then
67 echo "\`Makefile' is up to date."
68 echo " "
69 exit
70fi
71
72# Makefile needs to be rebuilt in the current directory by joining
73# the generic default makefile, the OS base makefile, and then local
74# generic, OS-specific, architecture-specific, and OS+architecture-specific
75# makefiles, if they exist. These files all contain macro definitions, with
76# later definitions overriding earlier ones. Make a temporary file first, in
77# case things go wrong. A second temporary is needed for sorting out the
78# default Perl stuff. Use short macro names to save typing.
79
80mf=Makefile
81mft=$mf-t
82mftt=$mf-tt
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83mftepcp=$mf-tepcp
84mftepcp2=$mf-tepcp2
61ec970d 85
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86look_mf=lookups/Makefile
87look_mf_pre=${look_mf}.predynamic
88look_mf_post=${look_mf}.postdynamic
0a349494 89
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90# Ensure the temporary does not exist and start the new one by setting
91# the OSTYPE and ARCHTYPE variables.
92
856d1e16 93rm -f $mft $mftt $mftepcp $mftepcp2 $look_mf-t
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94(echo "OSTYPE=$ostype"; echo "ARCHTYPE=$archtype"; echo "") > $mft || exit 1
95
96# Now concatenate the files to the temporary file. Copy the files using sed to
97# remove comments, blank lines, and trailing white space.
98
99# BEWARE: a tab character is needed in the sed command below. It has had
100# a nasty tendency to get lost in the past, causing a problem if a tab has
101# actually been present in one of the files. Use a variable to hold a space
102# and a tab to keep the tab in one place.
103
104st=' '
105
106for f in OS/Makefile-Default \
107 OS/Makefile-$ostype \
108 Local/Makefile \
109 Local/Makefile-$ostype \
110 Local/Makefile-$archtype \
111 Local/Makefile-$ostype-$archtype \
112 $mfb
113do if test -r ../$f
114 then echo "# From $f"
115 sed "/^#/d;/^[$st]*\$/d;s/[$st]*\$//" ../$f || exit 1
116 echo "# End of $f"
117 echo ""
118 fi
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119done \
120 | sed 's/^TMPDIR=/EXIM_&/' \
121 >> $mft || exit 1
0a349494 122
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123# handle PKG_CONFIG_PATH because we need it in our env, and we want to handle
124# wildcards; note that this logic means all setting _appends_ values, never
125# replacing; if that's a problem, we can revisit.
126sed -n "s/^[$st]*PKG_CONFIG_PATH[$st]*[+]*=[$st]*//p" $mft | \
127 sed "s/[$st]*\$//" >> $mftepcp
128if test -s ./$mftepcp
129then
130 # expand any wildcards and strip spaces, to make it a real PATH-like variable
131 ( IFS=":${IFS-$st}"; for P in `cat ./$mftepcp`; do echo "$P"; done ) | xargs | sed "s/[$st]/:/g" >./$mftepcp2
132 sed "s/^/PKG_CONFIG_PATH='/" < ./$mftepcp2 | sed "s/\$/'/" > ./$mftepcp
133 . ./$mftepcp
134 export PKG_CONFIG_PATH
135 egrep -v "^[$st]*PKG_CONFIG_PATH[$st]*=" ./$mft > ./$mftt
136 rm -f ./$mft
137 (
138 echo "# Collapsed PKG_CONFIG_PATH in build-prep:"
139 sed "s/'//g" ./$mftepcp
140 echo "# End of collapsed PKG_CONFIG_PATH"
141 echo ""
142 cat ./$mftt
143 ) > ./$mft
144 rm -f ./$mftt
145fi
146rm -f ./$mftepcp ./$mftepcp2
147
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148# handle pkg-config
149# beware portability of extended regexps with sed.
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150egrep "^[$st]*(AUTH|LOOKUP)_[A-Z0-9_]*[$st]*=[$st]*" $mft | \
151 sed "s/[$st]*=/='/" | \
152 sed "s/\$/'/" > $mftt
2519e60d 153egrep "^[$st]*((USE_(OPENSSL|GNUTLS)_PC)|SUPPORT_TLS|USE_GNUTLS|PCRE_CONFIG|AVOID_GNUTLS_PKCS11)[$st]*=[$st]*" $mft | \
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154 sed "s/[$st]*=/='/" | \
155 sed "s/\$/'/" >> $mftt
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156if test -s $mftt
157then
158 (
159 echo "# pkg-config fixups"
160 . ./$mftt
161 for var in `cut -d = -f 1 < $mftt`; do
162 case $var in
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163
164 USE_*_PC)
165 eval "pc_value=\"\$$var\""
166 need_this=''
8b0fb68e 167 need_core=''
13032a32 168 if [ ".$DISABLE_TLS" = .yes ]; then
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169 # no TLS, not referencing
170 true
171 elif [ ".$var" = ".USE_GNUTLS_PC" ] && [ ".$USE_GNUTLS" != "." ]; then
172 need_this=t
8b0fb68e 173 need_core="gnutls-special"
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174 elif [ ".$var" = ".USE_OPENSSL_PC" ] && [ ".$USE_GNUTLS" = "." ]; then
175 need_this=t
8b0fb68e 176 need_core=t
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177 fi
178 if [ ".$need_this" != "." ]; then
179 tls_include=`pkg-config --cflags $pc_value`
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180 if [ $? -ne 0 ]; then
181 echo >&2 "*** Missing pkg-config for package $pc_value (for Exim $var build option)"
182 exit 1
183 fi
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184 tls_libs=`pkg-config --libs $pc_value`
185 echo "TLS_INCLUDE=$tls_include"
186 echo "TLS_LIBS=$tls_libs"
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187 # With hash.h pulling crypto into the core, we need to also handle that
188 if [ ".$need_this" = ".t" ]; then
189 echo "CFLAGS += $tls_include"
190 echo "LDFLAGS += $tls_libs"
191 elif [ ".$need_this" = ".gnutls-special" ]; then
192 if pkg-config --atleast-version=2.10 gnutls ; then
193 echo "CFLAGS += $tls_include"
194 echo "LDFLAGS += $tls_libs"
195 else
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196 echo "CFLAGS += `libgcrypt-config --cflags`"
197 echo "LDFLAGS += `libgcrypt-config --libs`"
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198 fi
199 fi
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200 fi
201 ;;
202
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203 *_PC)
204 eval "pc_value=\"\$$var\""
205 base=`echo $var | sed 's/_PC$//'`
206 eval "basevalue=\"\$$base\""
207 if [ ".$basevalue" = "." ]; then
208 # not pulling in this module, _PC defined as default? Ignore
209 true
210 elif [ $basevalue = 2 ]; then
211 # module; handled in scripts/lookups-Makefile
212 true
213 else
214 # main binary
215 cflags=`pkg-config --cflags $pc_value`
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216 if [ $? -ne 0 ]; then
217 echo >&2 "*** Missing pkg-config for package $pc_value (for Exim $var build option)"
218 exit 1
219 fi
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220 libs=`pkg-config --libs $pc_value`
221 if [ "$var" != "${var#LOOKUP_}" ]; then
222 echo "LOOKUP_INCLUDE += $cflags"
223 echo "LOOKUP_LIBS += $libs"
224 elif [ "$var" != "${var#AUTH_}" ]; then
225 echo "CFLAGS += $cflags"
226 echo "AUTH_LIBS += $libs"
227 else
228 echo >&2 "Don't know how to handle pkg-config for $var"
229 fi
230 fi
231 ;;
f4b00a2d 232
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233 PCRE_CONFIG)
234 case $PCRE_CONFIG in
235 yes|YES|y|Y)
236 cflags=`pcre-config --cflags`
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237 if [ $? -ne 0 ]; then
238 echo >&2 "*** Missing pcre-config for regular expression support"
239 exit 1
240 fi
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241 libs=`pcre-config --libs`
242 if [ ".$cflags" != "." ]; then
243 echo "INCLUDE += $cflags"
244 fi
245 echo "PCRE_LIBS=$libs"
246 ;;
247 esac
248 ;;
249
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250 AVOID_GNUTLS_PKCS11)
251 echo "$var=yes"
252 ;;
253
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254 esac
255 done
256 echo "# End of pkg-config fixups"
257 echo
258 ) >> $mft
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259 subexit=$?
260 if [ $subexit -ne 0 ]; then
261 exit $subexit
262 fi
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263fi
264rm -f $mftt
265
0a349494 266# make the lookups Makefile with the definitions
58ee1eb6 267# the auxiliary script generates $look_mf_post from $look_mf_pre
0a349494 268
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269cp ../src/lookups/Makefile $look_mf_pre
270../scripts/lookups-Makefile
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271
272# See if there is a definition of EXIM_PERL in what we have built so far.
273# If so, run Perl to find the default values for PERL_CC, PERL_CCOPTS,
274# and PERL_LIBS. These need to be put at the top of the Makefile, so we rename
275# what we have so far and then copy it afterwards. Use the value of PERL_COMMAND
276# if it has been defined.
277
278EXIM_PERL=`grep EXIM_PERL $mft`
279
280PERL_COMMAND=`grep PERL_COMMAND $mft | sed -e "\\$!d;s/^[$st]*PERL_COMMAND[$st]*=[$st]*//"`
281if [ "${PERL_COMMAND}" = "" ] ; then
282 PERL_COMMAND='perl'
283fi
284
285if [ "${EXIM_PERL}" != "" ] ; then
286 testperl=`$PERL_COMMAND --version`
287 if [ "$testperl" = "" ] ; then
288 echo "*** EXIM_PERL is set, but '$PERL_COMMAND --version' failed"
289 exit 1
290 fi
291
177ebd9b
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292 EXTUTILS_EMBED_NOT_INSTALLED=`$PERL_COMMAND -MExtUtils::Embed -e ";" 2>&1`
293 if [ "${EXTUTILS_EMBED_NOT_INSTALLED}" != "" ] ; then
294 echo "Please install ExtUtils::Embed for $PERL_COMMAND"
295 exit 1;
296 fi
297
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298 mv $mft $mftt
299 echo "PERL_CC=`$PERL_COMMAND -MConfig -e 'print $Config{cc}'`" >>$mft
300 echo "PERL_CCOPTS=`$PERL_COMMAND -MExtUtils::Embed -e ccopts`" >>$mft
301 echo "PERL_LIBS=`$PERL_COMMAND -MExtUtils::Embed -e ldopts`" >>$mft
302 echo "" >>$mft
303 cat $mftt >> $mft
304 rm -f $mftt
305fi
306
307# Record the build variable in the Makefile.
308
309echo "build=$build" >>$mft
310echo "" >>$mft
311
312# Finally, join on the generic base make file, which contains the actual
313# rules and stuff.
314
76ea0716 315echo "# From ../OS/Makefile-Base" >> $mft
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316cat ../OS/Makefile-Base >> $mft || exit 1
317
318# If the new makefile is the same as the existing one, say so, and just
319# update the timestamp. Otherwise remove the old and install the new.
320
58ee1eb6 321if [ -s $mf ] && cmp -s $mft $mf && [ -s $look_mf ] && cmp -s $look_mf_post $look_mf
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322then echo ">>> rebuilt $mf unchanged"
323 echo " "
324 touch $mf || exit
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325 rm -f $mft $look_mf_pre $look_mf_post
326elif rm -f $mf $look_mf $look_mf_pre
61ec970d 327 mv $mft $mf
58ee1eb6 328 mv $look_mf_post $look_mf
0a349494 329then echo ">>> New $mf & $look_mf installed"
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330 echo '>>> Use "make makefile" if you need to force rebuilding of the makefile'
331 echo " "
332else echo " "
333 echo "*** Failed to install $mf - see $mft"
0a349494 334 echo " (or $look_mft)"
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335 echo " "
336 exit 1;
337fi
338
dde3daac 339# vim: set ft=sh :
61ec970d 340# End of Configure-Makefile