# We turn the configure-built build-$foo/lookups/Makefile.predynamic into Makefile
+# We always re-exec ourselves at least once, because it's the cleanest and
+# most portable way to turn on various features we expect of POSIX sh.
+if [ -z "$EXIM_LOOKUP_MAKEFILE_ADJUSTED" ]
+then
+ SHELL=/bin/sh
+ EXIM_LOOKUP_MAKEFILE_ADJUSTED=yes
+ export EXIM_LOOKUP_MAKEFILE_ADJUSTED
+
+ # Solaris sh and tr are problematic until we get xpg4 variants
+ if [ -x /usr/xpg4/bin/sh ]
+ then
+ PATH="/usr/xpg4/bin:$PATH"
+ export PATH
+ SHELL=/usr/xpg4/bin/sh
+ export SHELL
+ fi
+
+ # IRIX uses /bin/ksh for sh but in a compatibility mode unless $_XPG == 1,
+ # where said compatibility mode disables $(...)
+ _XPG=1
+ export _XPG
+
+ # We need the _right_ tr, so must do that first; but if a shell which
+ # we're more confident is sane is available, let's try that. Mostly,
+ # the problem is that "local" is not actually in "the" standard, it's
+ # just in every not-insane shell. Though arguably, there are no shells
+ # with POSIX-ish syntax which qualify as "not insane".
+ for b in /bin/dash /bin/bash /usr/local/bin/bash
+ do
+ if [ -x "$b" ]
+ then
+ SHELL="$b"
+ break
+ fi
+ done
+ # if we get a report of a system with zsh but not bash, we can add that
+ # to the list, but be sure to enable sh_word_split in that case.
+
+ exec "$SHELL" "$0" "$@"
+fi
+
input=lookups/Makefile.predynamic
-target=lookups/Makefile
-defs_source=Makefile
+target=lookups/Makefile.postdynamic
+defs_source=Makefile-t
tag_marker='MAGIC-TAG-MODS-OBJ-RULES-GO-HERE'
tab=' '
-# We always do something now, since there should always be a lookup,
-# and now we need to run in order to put the OBJ+= rules in.
+# We rely on tr(1) for translating case below. Some people export
+# values of LC_CTYPE and LC_COLLATE which apparently break our assumptions.
+# We're a script expecting certain output based on known inputs and not dealing
+# with UTF8, so we should be safe doingthis:
+LC_ALL=C
+export LC_ALL
-if grep -q "^CFLAGS_DYNAMIC[ $tab]*=" "$defs_source"
+if [ -f "$defs_source" ]
then
- # we have a definition, we're good to go
- : # noop (true) statement for bash compatibility
+ :
+ # we are happy
else
- echo >&2 "Missing CFLAGS_DYNAMIC inhibits building dynamic module lookup"
+ echo >&2 "$0: ERROR: MISSING FILE '${defs_source}'"
+ echo >&2 "$0: SHOULD HAVE BEEN CALLED FROM scripts/Configure-Makefile"
exit 1
fi
-tmp="$target.t"
+# nb: do not permit leading whitespace for this, as CFLAGS_DYNAMIC is exported
+# to the lookups subdir via a line with leading whitespace which otherwise
+# matches
+if grep -q "^CFLAGS_DYNAMIC[ $tab?:]*=" "$defs_source"
+then
+ # we have a definition, we're good to go
+ echo >&2 ">>> Creating lookups/Makefile for building dynamic modules"
+ enable_dynamic=yes
+else
+ echo >&2 ">>> Creating lookups/Makefile without dynamic module support"
+ enable_dynamic=''
+ # We always do something now, since there should always be a lookup,
+ # and now we need to run in order to put the OBJ=$(OBJ)+ rules in. So we
+ # continue on.
+fi
+
+# For the want_ checks, we need to let the user override values from the make
+# command-line, not just check the Makefile.
want_dynamic() {
local dyn_name="$1"
- grep -q "^LOOKUP_${dyn_name}[ $tab]*=[ $tab]*2" "$defs_source"
+ local re="LOOKUP_${dyn_name}[ $tab]*=[ $tab]*2"
+ env | grep -q "^$re"
+ if [ $? -eq 0 ]; then return 0; fi
+ grep -q "^[ $tab]*$re" "$defs_source"
}
want_at_all() {
local want_name="$1"
- grep -q "^LOOKUP_${want_name}[ $tab]*=[ $tab]*." "$defs_source"
+ local re="LOOKUP_${want_name}[ $tab]*=[ $tab]*."
+ env | grep -q "^$re"
+ if [ $? -eq 0 ]; then return 0; fi
+ grep -q "^[ $tab]*$re" "$defs_source"
+}
+
+# Adapted want_at_all above to work for EXPERIMENTAL features
+want_experimental() {
+ local want_name="$1"
+ local re="EXPERIMENTAL_${want_name}[ $tab]*=[ $tab]*."
+ env | grep -q "^$re"
+ if [ $? -eq 0 ]; then return 0; fi
+ grep -q "^[ $tab]*$re" "$defs_source"
}
+# The values of these variables will be emitted into the Makefile.
+
+MODS=""
+OBJ=""
+
emit_module_rule() {
local lookup_name="$1"
- local mod_name
+ local mod_name pkgconf
if [ "${lookup_name%:*}" = "$lookup_name" ]
then
- mod_name=$(echo $lookup_name | tr A-Z a-z)
+ # Square brackets are redundant but benign for POSIX compliant tr,
+ # however Solaris /usr/bin/tr requires them. Sometimes Solaris
+ # gets installed without a complete set of xpg4 tools, sigh.
+ mod_name=$(echo $lookup_name | tr [A-Z] [a-z])
else
mod_name="${lookup_name#*:}"
lookup_name="${lookup_name%:*}"
if want_dynamic "$lookup_name"
then
- echo "MODS += ${mod_name}.so"
- grep "^LOOKUP_${lookup_name}_" "$defs_source"
- echo "LOOKUP_${mod_name}_INCLUDE = \$(LOOKUP_${lookup_name}_INCLUDE)"
- echo "LOOKUP_${mod_name}_LIBS = \$(LOOKUP_${lookup_name}_LIBS)"
+ if [ -z "$enable_dynamic" ]; then
+ echo >&2 "Missing CFLAGS_DYNAMIC prevents building dynamic $lookup_name"
+ exit 1
+ fi
+ MODS="${MODS} ${mod_name}.so"
+ pkgconf=$(grep "^LOOKUP_${lookup_name}_PC" "$defs_source")
+ if [ $? -eq 0 ]; then
+ pkgconf=$(echo $pkgconf | sed 's/^.*= *//')
+ echo "LOOKUP_${mod_name}_INCLUDE = $(pkg-config --cflags $pkgconf)"
+ echo "LOOKUP_${mod_name}_LIBS = $(pkg-config --libs $pkgconf)"
+ else
+ grep "^LOOKUP_${lookup_name}_" "$defs_source"
+ echo "LOOKUP_${mod_name}_INCLUDE = \$(LOOKUP_${lookup_name}_INCLUDE)"
+ echo "LOOKUP_${mod_name}_LIBS = \$(LOOKUP_${lookup_name}_LIBS)"
+ fi
elif want_at_all "$lookup_name"
then
- echo "OBJ += ${mod_name}.o"
+ OBJ="${OBJ} ${mod_name}.o"
fi
}
+rm -f "$target"
exec 5>&1
-exec > "$tmp"
+exec > "$target"
sed -n "1,/$tag_marker/p" < "$input"
if want_at_all LDAP
then
- echo "OBJ += ldap.o"
+ OBJ="${OBJ} ldap.o"
fi
+# Because the variable is EXPERIMENTAL_SPF and not LOOKUP_SPF we
+# always include spf.o and compile a dummy if EXPERIMENTAL_SPF is not
+# defined.
+
+OBJ="${OBJ} spf.o"
+
+# Because the variable is EXPERIMENTAL_REDIS and not LOOKUP_REDIS we
+# use a different function to check for EXPERIMENTAL_* features
+# requested. Don't use the SPF method with dummy functions above.
+if want_experimental REDIS
+then
+ OBJ="${OBJ} redis.o"
+fi
+
+echo "MODS = $MODS"
+echo "OBJ = $OBJ"
+
sed -n "/$tag_marker/,\$p" < "$input"
exec >&5
-mv "$tmp" "$target"
+# Configure-Makefile will move $target into place
# vim: set ft=sh sw=2 :
git://git.exim.org / exim.git / blobdiff