+ $echo "Finding dependencies for $filebase$_o"
+ # Below, we strip out all but preprocessor directives.
+ # We have to take care of situations like
+ # #if defined(FOO) BAR /* comment line 1
+ # more comment lines */
+ # If we just delete text starting from the '/*' to the end of line, we will
+ # screw up cases like
+ # #if defined(FOO) /* comment */ \
+ # && defined(BAR) /* comment */ \
+ # && defined(BAZ) /* comment */ \
+ # etc.
+ # Also, in lines like
+ # #defined FOO(a,b) a/**/b
+ # the comment may be important and so needs to be retained.
+ # This code processes the single-line comments first; it assumes there is
+ # at most one straightforward comment per continued preprocessor line,
+ # replacing each non-empty comment (and its surrounding white space) by a
+ # single space. (sed only has a greedy '*' quantifier, so this doesn't
+ # work right if there are multiple comments per line, and strings can look
+ # like comments to it; both are unlikely in a preprocessor statement.) Any
+ # continuation line is joined, and the process repeated on the enlarged
+ # line as long as there are continuations. At the end, if there are any
+ # comments remaining, they are either completely empty or are like the
+ # first situation. The latter are just deleted by first deleting to the
+ # end of line (including preceding white space) things that start with '/*'
+ # and the next char isn't a '*'; then things that start with '/**', but the
+ # next char isn't a '/'. (Subsequent lines of the comment are irrelevant
+ # and get dropped.) At the end, we unjoin very long lines to avoid
+ # preprocessor limitations
+ ( $echo "#line 2 \"$file\""; \
+ $sed -n <$file \
+ -e "/^${filebase}_init(/q" \
+ -e ': tstcont' \
+ -e '/^[ ]*#/s|[ ]*/\*..*\*/[ ]*| |' \
+ -e '/\\$/{' \
+ -e 'N' \
+ -e 'b tstcont' \
+ -e '}' \
+ -e 's/\\\n//g' \
+ -e '/^#line/d' \
+ -e '/^[ ]*#/{' \
+ -e 's|[ ]*/\*[^*].*$||' \
+ -e 's|[ ]*/\*\*[^/].*$||' \
+ -e 's/.\{255\}/&\\\n/g' \
+ -e p \
+ -e '}' ) >UU/$file.c
+
+ # We're not sure why this was there; the #endif is extraneous on modern z/OS
+ #if [ "$osname" = os390 -a "$file" = perly.c ]; then
+ # $echo '#endif' >>UU/$file.c
+ #fi
+
+ if [ "$osname" = os390 ]; then
+ $cppstdin $finc -I. $cppflags $cppminus <UU/$file.c |
+ $sed \
+ -e '/^#.*<stdin>/d' \
+ -e '/^#.*"-"/d' \
+ -e '/^#.*git_version\.h/d' \
+ -e 's#\.[0-9][0-9]*\.c#'"$file.c#" \
+ -e 's/^[ ]*#[ ]*line/#/' \
+ -e '/^# *[0-9][0-9]* *[".\/]/!d' \
+ -e 's/^.*"\(.*\)".*$/'$filebase'\$(OBJ_EXT): \1/' \
+ -e 's/^# *[0-9][0-9]* \(.*\)$/'$filebase'\$(OBJ_EXT): \1/' \
+ -e 's|: \./|: |' \
+ -e 's|\.c\.c|.c|' $uwinfix | \
+ $uniq | $sort | $uniq >> .deptmp
+ else
+ $cppstdin $finc -I. $cppflags $cppminus <UU/$file.c >.cout 2>.cerr
+ $sed \
+ -e '1d' \
+ -e '/^#.*<stdin>/d' \
+ -e '/^#.*<builtin>/d' \
+ -e '/^#.*<built-in>/d' \
+ -e '/^#.*<command line>/d' \
+ -e '/^#.*<command-line>/d' \
+ -e '/^#.*"-"/d' \
+ -e '/^#.*"\/.*\/"/d' \
+ -e '/: file path prefix .* never used$/d' \
+ -e '/^#.*git_version\.h/d' \
+ -e 's#\.[0-9][0-9]*\.c#'"$file.c#" \
+ -e 's/^[ ]*#[ ]*line/#/' \
+ -e '/^# *[0-9][0-9]* *[".\/]/!d' \
+ -e 's/^.*"\(.*\)".*$/'$filebase'\$(OBJ_EXT): \1/' \
+ -e 's/^# *[0-9][0-9]* \(.*\)$/'$filebase'\$(OBJ_EXT): \1/' \
+ -e 's|: \./|: |' \
+ -e 's|\.c\.c|.c|' $uwinfix .cout .cerr| \
+ $uniq | $sort | $uniq >> .deptmp
+ fi
+ echo "$filebase\$(OBJ_EXT): $@" >> .deptmp