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Programmatically generate dependencies for all *.SH files.
[perl5.git] / makedepend.SH
CommitLineData
1e2cbf11 1#! /bin/sh
a02608de 2case $PERL_CONFIG_SH in
8d063cd8 3'')
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4 if test -f config.sh; then TOP=.;
5 elif test -f ../config.sh; then TOP=..;
6 elif test -f ../../config.sh; then TOP=../..;
7 elif test -f ../../../config.sh; then TOP=../../..;
8 elif test -f ../../../../config.sh; then TOP=../../../..;
9 else
10 echo "Can't find config.sh."; exit 1
11 fi
12 . $TOP/config.sh
13 ;;
8d063cd8 14esac
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15: This forces SH files to create target in same directory as SH file.
16: This is so that make depend always knows where to find SH derivatives.
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17case "$0" in
18*/*) cd `expr X$0 : 'X\(.*\)/'` ;;
19esac
1e2cbf11 20
8d063cd8 21echo "Extracting makedepend (with variable substitutions)"
7b0cd887 22rm -f makedepend
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23$spitshell >makedepend <<!GROK!THIS!
24$startsh
a0d0e21e 25# makedepend.SH
8d063cd8 26#
6b9d15cb 27MAKE=$make
28e8609d 28trnl='$trnl'
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29!GROK!THIS!
30$spitshell >>makedepend <<'!NO!SUBS!'
8d063cd8 31
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32if test -d .depending; then
33 echo "$0: Already running, exiting."
34 exit 0
35fi
36
37mkdir .depending
38
fb73857a 39# This script should be called with
3b5ca523 40# sh ./makedepend MAKE=$(MAKE)
fb73857a 41case "$1" in
3ae7e562 42 MAKE=*) eval $1; shift ;;
fb73857a
PP
43esac
44
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45export PATH || (echo "OOPS, this isn't sh. Desperation time. I will feed myself to sh."; sh \$0; kill \$\$)
46
a02608de 47case $PERL_CONFIG_SH in
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48'')
49 if test -f config.sh; then TOP=.;
50 elif test -f ../config.sh; then TOP=..;
51 elif test -f ../../config.sh; then TOP=../..;
52 elif test -f ../../../config.sh; then TOP=../../..;
53 elif test -f ../../../../config.sh; then TOP=../../../..;
54 else
55 echo "Can't find config.sh."; exit 1
56 fi
57 . $TOP/config.sh
58 ;;
59esac
8d063cd8 60
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61# Avoid localized gcc messages
62case "$ccname" in
63 gcc) LC_ALL=C ; export LC_ALL ;;
64esac
65
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66# We need .. when we are in the x2p directory if we are using the
67# cppstdin wrapper script.
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68# Put .. and . first so that we pick up the present cppstdin, not
69# an older one lying about in /usr/local/bin.
39e571d4 70PATH=".$path_sep..$path_sep$PATH"
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71export PATH
72
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73case "$osname" in
74amigaos) cat=/bin/cat ;; # must be absolute
75esac
76
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77$cat /dev/null >.deptmp
78$rm -f *.c.c c/*.c.c
79if test -f Makefile; then
1e2cbf11 80 rm -f $firstmakefile
337e9004 81 cp Makefile $firstmakefile
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82 # On QNX, 'cp' preserves timestamp, so $firstmakefile appears
83 # to be out of date. I don't know if OS/2 has touch, so do this:
84 case "$osname" in
85 os2) ;;
86 *) $touch $firstmakefile ;;
87 esac
8d063cd8 88fi
337e9004 89mf=$firstmakefile
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90if test -f $mf; then
91 defrule=`<$mf sed -n \
2d9864fe 92 -e '/^\.c\$(OBJ_EXT):.*;/{' \
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93 -e 's/\$\*\.c//' \
94 -e 's/^[^;]*;[ ]*//p' \
95 -e q \
96 -e '}' \
2d9864fe 97 -e '/^\.c\$(OBJ_EXT): *$/{' \
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98 -e N \
99 -e 's/\$\*\.c//' \
100 -e 's/^.*\n[ ]*//p' \
101 -e q \
102 -e '}'`
103fi
104case "$defrule" in
105'') defrule='$(CC) -c $(CFLAGS)' ;;
106esac
107
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108: Create files in UU directory to avoid problems with long filenames
109: on systems with 14 character filename limits so file.c.c and file.c
110: might be identical
111$test -d UU || mkdir UU
112
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113$MAKE clist || ($echo "Searching for .c files..."; \
114 $echo *.c | $tr ' ' $trnl | $egrep -v '\*' >.clist)
115for file in `$cat .clist`; do
8d063cd8 116# for file in `cat /dev/null`; do
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117 case "$osname" in
118 uwin) uwinfix="-e s,\\\\\\\\,/,g -e s,\\([a-zA-Z]\\):/,/\\1/,g" ;;
119 os2) uwinfix="-e s,\\\\\\\\,/,g" ;;
120 cygwin) uwinfix="-e s,\\\\\\\\,/,g" ;;
121 posix-bc) uwinfix="-e s/\\*POSIX(\\(.*\\))/\\1/" ;;
122 vos) uwinfix="-e s/\#/\\\#/" ;;
123 *) uwinfix="" ;;
124 esac
8d063cd8 125 case "$file" in
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126 *.c) filebase=`basename $file .c` ;;
127 *.y) filebase=`basename $file .y` ;;
128 esac
129 case "$file" in
96a8704c 130 */*) finc="-I`echo $file | sed 's#/[^/]*$##'`" ;;
7b0cd887 131 *) finc= ;;
8d063cd8 132 esac
3b5ca523 133 $echo "Finding dependencies for $filebase$_o."
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134 # Below, we strip out all but preprocessor directives.
135 # We have to take care of situations like
136 # #if defined(FOO) BAR /* comment line 1
137 # more comment lines */
138 # If we just delete text starting from the '/*' to the end of line, we will
139 # screw up cases like
140 # #if defined(FOO) /* comment */ \
141 # && defined(BAR) /* comment */ \
142 # && defined(BAZ) /* comment */ \
143 # etc.
144 # This code processes these latter situations first; it assumes there is
145 # at most one straightforward comment per continued preprocessor line. (It
146 # would be easier to handle more general cases if sed had a non-greedy '*'
147 # quantifier; but typically preprocessor directive lines are rather
148 # simple.) The continuation line is joined, and the process repeated on
149 # the enlarged line as long as there are continuations. At the end, if
150 # there are any comments remaining, they should be like the first situation,
151 # and can just be deleted. (Subsequent lines of the comment are irrelevant
152 # and get dropped.)
d43a05a2 153 ( $echo "#line 2 \"$file\""; \
7b0cd887 154 $sed -n <$file \
8d063cd8 155 -e "/^${filebase}_init(/q" \
fbe6fff7 156 -e ': testcont' \
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157 -e '/^[ ]*#/s|/\*.*\*/||' \
158 -e '/\\$/{' \
159 -e 'N' \
fbe6fff7 160 -e 'b testcont' \
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161 -e '}' \
162 -e 's/\\\n/ /g' \
2304df62 163 -e '/^#line/d' \
44935339 164 -e '/^[ ]*#/{' \
8d063cd8 165 -e 's|/\*.*$||' \
8d063cd8 166 -e p \
3b5ca523 167 -e '}' ) >UU/$file.c
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168
169 if [ "$osname" = os390 -a "$file" = perly.c ]; then
170 $echo '#endif' >>UU/$file.c
171 fi
172
ceda4f9b 173 if [ "$osname" = os390 ]; then
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174 $cppstdin $finc -I. $cppflags $cppminus <UU/$file.c |
175 $sed \
176 -e '/^#.*<stdin>/d' \
177 -e '/^#.*"-"/d' \
486cd780 178 -e '/^#.*git_version\.h/d' \
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179 -e 's#\.[0-9][0-9]*\.c#'"$file.c#" \
180 -e 's/^[ ]*#[ ]*line/#/' \
181 -e '/^# *[0-9][0-9]* *[".\/]/!d' \
182 -e 's/^.*"\(.*\)".*$/'$filebase'\$(OBJ_EXT): \1/' \
183 -e 's/^# *[0-9][0-9]* \(.*\)$/'$filebase'\$(OBJ_EXT): \1/' \
184 -e 's|: \./|: |' \
185 -e 's|\.c\.c|.c|' $uwinfix | \
186 $uniq | $sort | $uniq >> .deptmp
187 else
0fcc65bb 188 $cppstdin $finc -I. $cppflags $cppminus <UU/$file.c >.cout 2>.cerr
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189 $sed \
190 -e '1d' \
191 -e '/^#.*<stdin>/d' \
7a0953c3 192 -e '/^#.*<builtin>/d' \
d41056c8 193 -e '/^#.*<built-in>/d' \
7a0953c3 194 -e '/^#.*<command line>/d' \
cf14425e 195 -e '/^#.*<command-line>/d' \
ceda4f9b 196 -e '/^#.*"-"/d' \
a3d1be69 197 -e '/^#.*"\/.*\/"/d' \
8ad4a856 198 -e '/: file path prefix .* never used$/d' \
486cd780 199 -e '/^#.*git_version\.h/d' \
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200 -e 's#\.[0-9][0-9]*\.c#'"$file.c#" \
201 -e 's/^[ ]*#[ ]*line/#/' \
202 -e '/^# *[0-9][0-9]* *[".\/]/!d' \
203 -e 's/^.*"\(.*\)".*$/'$filebase'\$(OBJ_EXT): \1/' \
204 -e 's/^# *[0-9][0-9]* \(.*\)$/'$filebase'\$(OBJ_EXT): \1/' \
205 -e 's|: \./|: |' \
0fcc65bb 206 -e 's|\.c\.c|.c|' $uwinfix .cout .cerr| \
ceda4f9b 207 $uniq | $sort | $uniq >> .deptmp
5920a0ba 208 fi
3ae7e562 209 echo "$filebase\$(OBJ_EXT): $@" >> .deptmp
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210done
211
352d5a3a 212$sed <$mf >$mf.new -e '1,/^# AUTOMATICALLY/!d'
8d063cd8 213
8d063cd8 214if $test -s .deptmp; then
352d5a3a 215 $echo "Updating $mf..."
8d063cd8 216 $echo "# If this runs make out of memory, delete /usr/include lines." \
352d5a3a 217 >> $mf.new
3722f0dc 218 if [ "$osname" = vos ]; then
ef314d29 219 $sed 's|\.incl\.c|.h|' .deptmp >.deptmp.vos
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220 mv -f .deptmp.vos .deptmp
221 fi
2d9864fe 222 $sed 's|^\(.*\$(OBJ_EXT):\) *\(.*/.*\.c\) *$|\1 \2; '"$defrule \2|" .deptmp \
352d5a3a 223 >>$mf.new
8d063cd8 224else
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225 $MAKE hlist || ($echo "Searching for .h files..."; \
226 $echo *.h | $tr ' ' $trnl | $egrep -v '\*' >.hlist)
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227 $echo "You don't seem to have a proper C preprocessor. Using grep instead."
228 $egrep '^#include ' `cat .clist` `cat .hlist` >.deptmp
352d5a3a 229 $echo "Updating $mf..."
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230 <.clist $sed -n \
231 -e '/\//{' \
337e9004 232 -e 's|^\(.*\)/\(.*\)\.c|\2\$(OBJ_EXT): \1/\2.c; '"$defrule \1/\2.c|p" \
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233 -e d \
234 -e '}' \
337e9004 235 -e 's|^\(.*\)\.c|\1\$(OBJ_EXT): \1.c|p' >> $mf.new
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236 <.hlist $sed -n 's|\(.*/\)\(.*\)|s= \2= \1\2=|p' >.hsed
237 <.deptmp $sed -n 's|c:#include "\(.*\)".*$|o: \1|p' | \
238 $sed 's|^[^;]*/||' | \
352d5a3a 239 $sed -f .hsed >> $mf.new
8d063cd8 240 <.deptmp $sed -n 's|h:#include "\(.*\)".*$|h: \1|p' | \
352d5a3a 241 $sed -f .hsed >> $mf.new
8d063cd8 242fi
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243$rm -f $mf.old
244$cp $mf $mf.old
1e2cbf11 245$rm -f $mf
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246$cp $mf.new $mf
247$rm $mf.new
248$echo "# WARNING: Put nothing here or make depend will gobble it up!" >> $mf
9719c95b 249$rm -rf .deptmp UU .clist .hlist .hsed .cout .cerr
7fedbb54 250rmdir .depending
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251
252!NO!SUBS!
253$eunicefix makedepend
378cc40b 254chmod +x makedepend