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Diffstat (limited to 'devel/bmake/files/mkdeps.sh')
| -rwxr-xr-x | devel/bmake/files/mkdeps.sh | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/devel/bmake/files/mkdeps.sh b/devel/bmake/files/mkdeps.sh new file mode 100755 index 00000000000..4240c6bd0b2 --- /dev/null +++ b/devel/bmake/files/mkdeps.sh @@ -0,0 +1,314 @@ +: +# NAME: +# mkdeps - generate dependencies +# +# SYNOPSIS: +# mkdeps [options] file ... +# +# DESCRIPTION: +# This script updates "makefile" with dependencies for +# "file"(s). It borrows ideas from various makedepend scripts +# and should be compatible with most. +# +# By default we use grep to extract include file names from +# source files. We source an "rc" file '$Mydir/.${Myname}rc' which +# can contain variable assignments such as: +#.nf +# +# cpp_c=/usr/lib/cpp +# cpp_cc=g++ -E +# ... +# +#.fi +# If the variable 'cpp_$suffix' is set, we use it as our cpp in +# place of grep. The program referenced by these variables are +# expected to produce output like: +#.nf +# +# # 10 \"/usr/include/stdio.h\" 1 +# +#.fi +# This allows us to skip most of our processing. For lex,yacc +# and other source files, grep is probably just as quick and +# certainly more portable. +# +# If the "rc" file does not exist, we create it and attempt to +# find cpp or an equivalent cc invocation to assign to 'cpp_c'. +# +# AUTHOR: +# Simon J. Gerraty <sjg@zen.void.oz.au> +# + +# RCSid: +# $Id: mkdeps.sh,v 1.1 2005/10/31 21:34:24 reed Exp $ +# +# @(#) Copyright (c) 1993 Simon J. Gerraty +# +# This file is provided in the hope that it will +# be of use. There is absolutely NO WARRANTY. +# Permission to copy, redistribute or otherwise +# use this file is hereby granted provided that +# the above copyright notice and this notice are +# left intact. +# +# Please send copies of changes and bug-fixes to: +# sjg@zen.void.oz.au +# + +Myname=`basename $0 .sh` +Mydir=`dirname $0` + +case `echo -n .` in +-n*) N=; C="\c";; +*) N=-n; C=;; +esac + +cc_include=-I/usr/include + +TF=/tmp/dep.$$ +EF=/tmp/deperr.$$ +> $EF + +case "$*" in +*-n*) # don't use rc file + rc=/dev/null + norc=yes;; +*) + rc=$Mydir/.${Myname}rc + ;; +esac + +update= +Include=include + +if [ x"$norc" = x -a -f $rc ]; then + . $rc +else + # if /usr/lib/cpp or equivalent is available it is better than + # grepping .c files. + # See what (if anything) works on this system... + echo : > $rc + echo "# pre-processor for .c files" >> $rc + # try a couple of sane places first + for d in /usr/libexec /usr/lib /usr/bin /lib /usr/ccs/bin + do + cpp_c=$d/cpp + [ -x $cpp_c ] && break + done + + if [ -x $cpp_c ]; then + echo cpp_c=$cpp_c >> $rc + else + cpp_c= + # rats see if cc can be used + echo "#include <stdio.h>" > /tmp/f$$.c + echo "main() { return 0; }" >> /tmp/f$$.c + # try some sensible args to cc + for arg in -E -P -M + do + ok=`${REALCC:-${CC:-cc}} $arg /tmp/f$$.c 2>/dev/null | grep '^#.*stdio.h' | tail -1` + case "$ok" in + "") ;; + *) + cpp_c="${REALCC:-${CC:-cc}} $arg" + echo cpp_c="'$cpp_c'" >> $rc + break;; + esac + done + rm -f /tmp/f$$.c + fi +fi + +clean_up() { + trap "" 2 3 + trap 0 + if [ -s $EF ]; then + egrep -vi "included from|warning" $EF > ${EF}2 + if [ -s ${EF}2 ]; then + cat $EF >&2 + rm -f .depend + ests=1 + fi + fi + rm -f $TF $EF* + exit ${ests:-0} +} + +# this lot does not work on HPsUX - complain to Hp. +trap clean_up 0 +trap exit 2 3 + +get_incs() { + case "$cpp" in + grep) + # set IGNORE="<" to skip system includes + egrep '^#[ ]*include' $* | egrep -v "$IGNORE" | \ + sed -e 's/^.*include[^"<]*["<]//' -e 's/[">].*//g';; + *) + # $cpp (eg. /usr/lib/cpp or cc -E) should produce output like: + # 1 "/usr/include/stdio.h" 2 + # set IGNORE=/usr/include to skip system includes + $cpp $cpp_opts $cc_include $* 2>> $EF | egrep '^#.*\.h"' | sed 's,^#.*"\(.*\)".*,\1,' | + egrep -v "$IGNORE" | sort -u;; + esac +} + +gen_deps() { + llen=$1 + shift + + for ifile in $* + do + case "$cpp" in + grep) + # this lot is not needed if not using grep. + for dir in $srcdir $dirlist /usr/include + do + [ -f "$dir/$ifile" ] && break + done + + if [ ! -f "$dir/$ifile" ]; then + # produce a useful error message (useful to emacs or error) + iline=`grep -n ".*include.*[\"<]$ifile[\">]" $file | cut -d: -f1` + echo "\"$file\", line $iline: cannot find include file \"$ifile\"" >> $EF + # no point adding to dependency list as the resulting makefile + # would not work anyway... + continue + fi + ifile=$dir/$ifile + + # check whether we have done it yet + case `grep "$ifile" $TF` in + "") echo "$ifile" >> $TF;; + *) continue;; # no repeats... + esac + ;; + esac + + len=`expr "$ifile " : '.*'` + if [ "`expr $llen + $len`" -gt ${width:-76} ]; then + echo "\\" >> .depend + echo $N " $C" >> .depend + llen=8 + fi + echo $N "$ifile $C" >> .depend + llen=`expr $llen + $len` + + case "$cpp" in + grep) + # this lot is not needed unless using grep. + ilist=`get_incs $ifile` # recurse needed? + [ "$ilist" ] && llen=`gen_deps $llen $ilist` + ;; + esac + done + echo $llen +} + +for f in makefile Makefile +do + test -s $f && { MAKEFILE=$f; break; } +done + +MAKEFILE=${MAKEFILE:-makefile} +IGNORE=${IGNORE:-"^-"} # won't happen +obj=o +cpp_opts= # incase cpp != grep +vpath= +append= +progDep= + +set -- `getopt "AanNV:s:w:o:I:D:b:f:i:p" "$@"` +for key in "$@" +do + case $key in + --) shift; break;; + -A) Include=;; # cat .depend >> $MAKEFILE + -a) append=yes; shift;; + -n) shift;; # ignore rc + -N) update=no; shift;; # don't update $MAKEFILE + -I) cpp_opts="$cpp_opts$1$2 "; dirlist="$dirlist $2"; shift 2;; + -o) obj=$2; shift 2;; + -s) shift 2;; # can't handle it anyway... + -w) width=$2; shift 2;; + -f) MAKEFILE=$2; shift 2;; + -b) BASEDIR=$2; shift 2;; + -i) IGNORE="$2"; shift 2;; # ignore headers matching this... + -D) cpp_opts="$cpp_opts$1$2 "; shift 2;; + -V) VPATH="$2"; shift 2;; # where to look for files + -p) progDep=yes; shift;; + esac +done + +[ "$VPATH" ] && vpath=`IFS=:; set -- $VPATH; echo $*` + +[ "$append" ] || > .depend + +for file in $* +do + cpp= + suffix=`expr $file : '.*\.\([^.]*\)'` + + eval cpp=\"\${cpp_${suffix}:-grep}\" + + if [ ! -f $file -a "$vpath" ]; then + for d in . $vpath + do + [ -f $d/$file ] && { file=$d/$file; break; } + done + fi + srcdir=`dirname $file` + base=`basename $file .$suffix` + + ilist=`get_incs $file` + + if [ "$ilist" ]; then + > $TF + if [ "$progDep" ]; then + echo "$base: $file \\" >> .depend + else + echo "$base.$obj: $file \\" >> .depend + fi + echo $N " $C" >> .depend + llen=8 + llen=`gen_deps $llen $ilist` + echo >> .depend + echo >> .depend + elif [ "$progDep" ]; then + echo "$base: $file" >> .depend + echo >> .depend + fi +done + +if [ -s .depend ]; then + # ./foo.h looks ugly + mv .depend $TF + { test "$BASEDIR" && sed -e "s;$BASEDIR;\$(BASEDIR);g" $TF || cat $TF; } | + sed 's;\([^.]\)\./;\1;g' > .depend + + # + # Save the manually updated section of the makefile + # + if [ x$update != xno ]; then + trap "" 2 # don't die if we got this far + + # if make doesn't support include, then append our deps... + depended=`grep 'include.*\.depend' $MAKEFILE` + test "$depended" && clean_up + + sed '/^# DO NOT DELETE.*depend.*$/,$d' < $MAKEFILE > $TF + mv $TF $MAKEFILE + cat <<! >> $MAKEFILE +# DO NOT DELETE THIS LINE -- make depend depends on it +# Do not edit anything below, it was added automagically by $Myname. + +! + + case "$Include" in + "") cat .depend >> $MAKEFILE;; + .include) echo '.include ".depend"' >> $MAKEFILE;; + include) echo include .depend >> $MAKEFILE;; + esac + fi +fi +clean_up |