+ if ! $modcache; then
+ func_lookup_file "modules/$1"
+ sed -n -e "/^Makefile\.am$sed_extract_prog" < "$lookedup_file"
+ else
+ func_cache_lookup_module "$1"
+ # Output the field's value, including the final newline (if any).
+ if $have_associative; then
+ if eval 'test -n "${modcache_makefile[$1]+set}"'; then
+ eval 'echo "${modcache_makefile[$1]}"'
+ fi
+ else
+ eval "field_set=\"\$${cachevar}_makefile_set\""
+ if test -n "$field_set"; then
+ eval "field_value=\"\$${cachevar}_makefile\""
+ echo "${field_value}"
+ fi
+ fi
+ fi
+}
+
+# func_get_automake_snippet_unconditional module
+# returns the part of the Makefile.am snippet that must stay outside of
+# Automake conditionals.
+# Input:
+# - local_gnulib_dir from --local-dir
+# - modcache true or false, from --cache-modules/--no-cache-modules
+func_get_automake_snippet_unconditional ()
+{
+ case "$1" in
+ *-tests)
+ # *-tests module live in tests/, not lib/.
+ # Synthesize an EXTRA_DIST augmentation.
+ all_files=`func_get_filelist $1`
+ func_filter_filelist tests_files " " "$all_files" 'tests/' '' 'tests/' ''
+ extra_files="$tests_files"
+ if test -n "$extra_files"; then
+ echo "EXTRA_DIST +=" $extra_files
+ echo
+ fi
+ ;;
+ *)
+ # Synthesize an EXTRA_DIST augmentation.
+ sed_combine_lines='/\\$/{
+ :a
+ N
+ s/\\\n/ /
+ s/\\$/\\/
+ ta
+ }'
+ sed_extract_mentioned_files='s/^lib_SOURCES[ ]*+=[ ]*//p'
+ already_mentioned_files=` \
+ { if ! $modcache; then
+ func_lookup_file "modules/$1"
+ sed -n -e "/^Makefile\.am$sed_extract_prog" < "$lookedup_file"
+ else
+ func_cache_lookup_module "$1"
+ if $have_associative; then
+ if eval 'test -n "${modcache_makefile[$1]+set}"'; then
+ eval 'echo "${modcache_makefile[$1]}"'
+ fi
+ else
+ eval 'field_set="$'"${cachevar}"'_makefile_set"'
+ if test -n "$field_set"; then
+ eval 'field_value="$'"${cachevar}"'_makefile"'
+ echo "${field_value}"
+ fi
+ fi
+ fi
+ } \
+ | sed -e "$sed_combine_lines" \
+ | sed -n -e "$sed_extract_mentioned_files" | sed -e 's/#.*//'`
+ all_files=`func_get_filelist $1`
+ func_filter_filelist lib_files "$nl" "$all_files" 'lib/' '' 'lib/' ''
+ # Remove $already_mentioned_files from $lib_files.
+ echo "$lib_files" | LC_ALL=C sort -u > "$tmp"/lib-files
+ extra_files=`for f in $already_mentioned_files; do echo $f; done \
+ | LC_ALL=C sort -u | LC_ALL=C join -v 2 - "$tmp"/lib-files`
+ if test -n "$extra_files"; then
+ echo "EXTRA_DIST +=" $extra_files
+ echo
+ fi
+ # Synthesize also an EXTRA_lib_SOURCES augmentation.
+ # This is necessary so that automake can generate the right list of
+ # dependency rules.
+ # A possible approach would be to use autom4te --trace of the redefined
+ # AC_LIBOBJ and AC_REPLACE_FUNCS macros when creating the Makefile.am
+ # (use autom4te --trace, not just grep, so that AC_LIBOBJ invocations
+ # inside autoconf's built-in macros are not missed).
+ # But it's simpler and more robust to do it here, based on the file list.
+ # If some .c file exists and is not used with AC_LIBOBJ - for example,
+ # a .c file is preprocessed into another .c file for BUILT_SOURCES -,
+ # automake will generate a useless dependency; this is harmless.
+ case "$1" in
+ relocatable-prog-wrapper) ;;
+ pt_chown) ;;
+ *)
+ func_filter_filelist extra_files "$nl" "$extra_files" '' '.c' '' ''
+ if test -n "$extra_files"; then
+ echo "EXTRA_lib_SOURCES +=" $extra_files
+ echo
+ fi
+ ;;
+ esac
+ # Synthesize an EXTRA_DIST augmentation also for the files in build-aux/.
+ func_filter_filelist buildaux_files "$nl" "$all_files" 'build-aux/' '' 'build-aux/' ''
+ if test -n "$buildaux_files"; then
+ sed_prepend_auxdir='s,^,$(top_srcdir)/'"$auxdir"'/,'
+ echo "EXTRA_DIST += "`echo "$buildaux_files" | sed -e "$sed_prepend_auxdir"`
+ echo
+ fi
+ # Synthesize an EXTRA_DIST augmentation also for the files from top/.
+ func_filter_filelist top_files "$nl" "$all_files" 'top/' '' 'top/' ''
+ if test -n "$top_files"; then
+ sed_prepend_topdir='s,^,$(top_srcdir)/,'
+ echo "EXTRA_DIST += "`echo "$top_files" | sed -e "$sed_prepend_topdir"`
+ echo
+ fi
+ ;;
+ esac
+}
+
+# func_get_automake_snippet module
+# Input:
+# - local_gnulib_dir from --local-dir
+# - modcache true or false, from --cache-modules/--no-cache-modules
+func_get_automake_snippet ()
+{
+ func_get_automake_snippet_conditional "$1"
+ func_get_automake_snippet_unconditional "$1"
+}
+
+# func_get_include_directive module
+# Input:
+# - local_gnulib_dir from --local-dir
+# - modcache true or false, from --cache-modules/--no-cache-modules
+func_get_include_directive ()
+{
+ {
+ if ! $modcache; then
+ func_lookup_file "modules/$1"
+ sed -n -e "/^Include$sed_extract_prog" < "$lookedup_file"
+ else
+ func_cache_lookup_module "$1"
+ # Output the field's value, including the final newline (if any).
+ if $have_associative; then
+ if eval 'test -n "${modcache_include[$1]+set}"'; then
+ eval 'echo "${modcache_include[$1]}"'
+ fi
+ else
+ eval "field_set=\"\$${cachevar}_include_set\""
+ if test -n "$field_set"; then
+ eval "field_value=\"\$${cachevar}_include\""
+ echo "${field_value}"
+ fi
+ fi
+ fi
+ } | sed -e 's/^\(["<]\)/#include \1/'
+}
+
+# func_get_link_directive module
+# Input:
+# - local_gnulib_dir from --local-dir
+# - modcache true or false, from --cache-modules/--no-cache-modules
+func_get_link_directive ()
+{
+ if ! $modcache; then
+ func_lookup_file "modules/$1"
+ sed -n -e "/^Link$sed_extract_prog" < "$lookedup_file"
+ else
+ func_cache_lookup_module "$1"
+ # Output the field's value, including the final newline (if any).
+ if $have_associative; then
+ if eval 'test -n "${modcache_link[$1]+set}"'; then
+ eval 'echo "${modcache_link[$1]}"'
+ fi
+ else
+ eval "field_set=\"\$${cachevar}_link_set\""
+ if test -n "$field_set"; then
+ eval "field_value=\"\$${cachevar}_link\""
+ echo "${field_value}"
+ fi
+ fi
+ fi
+}
+
+# func_get_license module
+# Input:
+# - local_gnulib_dir from --local-dir
+# - modcache true or false, from --cache-modules/--no-cache-modules
+func_get_license ()
+{
+ {
+ if ! $modcache; then
+ func_lookup_file "modules/$1"
+ sed -n -e "/^License$sed_extract_prog" < "$lookedup_file"
+ else
+ func_cache_lookup_module "$1"
+ # Output the field's value, including the final newline (if any).
+ if $have_associative; then
+ if eval 'test -n "${modcache_license[$1]+set}"'; then
+ eval 'echo "${modcache_license[$1]}"'
+ fi
+ else
+ eval "field_set=\"\$${cachevar}_license_set\""
+ if test -n "$field_set"; then
+ eval "field_value=\"\$${cachevar}_license\""
+ echo "${field_value}"
+ fi
+ fi
+ fi
+ # The default is GPL.
+ echo "GPL"
+ } | sed -e 's,^ *$,,' | sed -e 1q
+}
+
+# func_get_maintainer module
+# Input:
+# - local_gnulib_dir from --local-dir
+# - modcache true or false, from --cache-modules/--no-cache-modules
+func_get_maintainer ()
+{
+ if ! $modcache; then
+ func_lookup_file "modules/$1"
+ sed -n -e "/^Maintainer$sed_extract_prog" < "$lookedup_file"
+ else
+ func_cache_lookup_module "$1"
+ # Output the field's value, including the final newline (if any).
+ if $have_associative; then
+ if eval 'test -n "${modcache_maintainer[$1]+set}"'; then
+ eval 'echo "${modcache_maintainer[$1]}"'
+ fi
+ else
+ eval "field_set=\"\$${cachevar}_maintainer_set\""
+ if test -n "$field_set"; then
+ eval "field_value=\"\$${cachevar}_maintainer\""
+ echo "${field_value}"
+ fi
+ fi
+ fi
+}
+
+# func_get_tests_module module
+# Input:
+# - local_gnulib_dir from --local-dir
+func_get_tests_module ()
+{
+ # The naming convention for tests modules is hardwired: ${module}-tests.
+ if test -f "$gnulib_dir/modules/$1"-tests \
+ || { test -n "$local_gnulib_dir" && test -d "$local_gnulib_dir/modules" \
+ && test -f "$local_gnulib_dir/modules/$1"-tests; }; then
+ echo "$1"-tests
+ fi
+}
+
+# func_acceptable module
+# tests whether a module is acceptable.
+# Input:
+# - avoidlist list of modules to avoid
+func_acceptable ()
+{
+ for avoid in $avoidlist; do
+ if test "$avoid" = "$1"; then
+ return 1
+ fi
+ done
+ return 0
+}
+
+# sed expression to keep the first 32 characters of each line.
+sed_first_32_chars='s/^\(................................\).*/\1/'
+
+# func_module_shellfunc_name module
+# computes the shell function name that will contain the m4 macros for the module.
+# Input:
+# - macro_prefix prefix to use
+# Output:
+# - shellfunc shell function name
+func_module_shellfunc_name ()
+{
+ case $1 in
+ *[!a-zA-Z0-9_]*)
+ shellfunc=func_${macro_prefix}_gnulib_m4code_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
+ *)
+ shellfunc=func_${macro_prefix}_gnulib_m4code_$1 ;;
+ esac
+}
+
+# func_module_shellvar_name module
+# computes the shell variable name the will be set to true once the m4 macros
+# for the module have been executed.
+# Output:
+# - shellvar shell variable name
+func_module_shellvar_name ()
+{
+ case $1 in
+ *[!a-zA-Z0-9_]*)
+ shellvar=${macro_prefix}_gnulib_enabled_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
+ *)
+ shellvar=${macro_prefix}_gnulib_enabled_$1 ;;
+ esac
+}
+
+# func_module_conditional_name module
+# computes the automake conditional name for the module.
+# Output:
+# - conditional name of automake conditional
+func_module_conditional_name ()
+{
+ case $1 in
+ *[!a-zA-Z0-9_]*)
+ conditional=${macro_prefix}_GNULIB_ENABLED_`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
+ *)
+ conditional=${macro_prefix}_GNULIB_ENABLED_$1 ;;
+ esac
+}
+
+# func_uncond_add_module B
+# notes the presence of B as an unconditional module.
+#
+# func_conddep_add_module A B cond
+# notes the presence of a conditional dependency from module A to module B,
+# subject to the condition that A is enabled and cond is true.
+#
+# func_cond_module_p B
+# tests whether module B is conditional.
+#
+# func_cond_module_condition A B
+# returns the condition when B should be enabled as a dependency of A, once the
+# m4 code for A has been executed.
+# Output: - condition
+#
+if $have_associative; then
+ declare -A conddep_isuncond
+ declare -A conddep_dependers
+ declare -A conddep_condition
+ func_uncond_add_module ()
+ {
+ eval 'conddep_isuncond[$1]=true'
+ eval 'unset conddep_dependers[$1]'
+ }
+ func_conddep_add_module ()
+ {
+ eval 'isuncond="${conddep_isuncond[$2]}"'
+ if test -z "$isuncond"; then
+ # No unconditional dependency to B known at this point.
+ eval 'conddep_dependers[$2]="${conddep_dependers[$2]} $1"'
+ eval 'conddep_condition[$1---$2]="$3"'
+ fi
+ }
+ func_cond_module_p ()
+ {
+ eval 'previous_dependers="${conddep_dependers[$1]}"'
+ test -n "$previous_dependers"
+ }
+ func_cond_module_condition ()
+ {
+ eval 'condition="${conddep_condition[$1---$2]}"'
+ }
+else
+ func_uncond_add_module ()
+ {
+ case $1 in
+ *[!a-zA-Z0-9_]*)
+ suffix=`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
+ *)
+ suffix=$1 ;;
+ esac
+ eval 'conddep_isuncond_'"$suffix"'=true'
+ eval 'unset conddep_dependers_'"$suffix"
+ }
+ func_conddep_add_module ()
+ {
+ case $2 in
+ *[!a-zA-Z0-9_]*)
+ suffix=`echo "$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
+ *)
+ suffix=$2 ;;
+ esac
+ eval 'isuncond="${conddep_isuncond_'"$suffix"'}"'
+ if test -z "$isuncond"; then
+ eval 'conddep_dependers_'"$suffix"'="${conddep_dependers_'"$suffix"'} $1"'
+ suffix=`echo "$1---$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"`
+ eval 'conddep_condition_'"$suffix"'="$3"'
+ fi
+ }
+ func_cond_module_p ()
+ {
+ case $1 in
+ *[!a-zA-Z0-9_]*)
+ suffix=`echo "$1" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"` ;;
+ *)
+ suffix=$1 ;;
+ esac
+ eval 'previous_dependers="${conddep_dependers_'"$suffix"'}"'
+ test -n "$previous_dependers"
+ }
+ func_cond_module_condition ()
+ {
+ suffix=`echo "$1---$2" | md5sum | LC_ALL=C sed -e "$sed_first_32_chars"`
+ eval 'condition="${conddep_condition_'"$suffix"'}"'
+ }
+fi
+
+sed_dependencies_without_conditions='s/ *\[.*//'
+
+# func_modules_transitive_closure
+# Input:
+# - local_gnulib_dir from --local-dir
+# - modcache true or false, from --cache-modules/--no-cache-modules
+# - modules list of specified modules
+# - inctests true if tests should be included, blank otherwise
+# - incobsolete true if obsolete modules among dependencies should be
+# included, blank otherwise
+# - inc_cxx_tests true if C++ interoperability tests should be included,
+# blank otherwise
+# - inc_longrunning_tests true if long-runnings tests should be included,
+# blank otherwise
+# - inc_privileged_tests true if tests that require root privileges should be
+# included, blank otherwise
+# - inc_unportable_tests true if tests that fail on some platforms should be
+# included, blank otherwise
+# - inc_all_direct_tests true if all kinds of problematic unit tests among
+# the unit tests of the specified modules should be
+# included, blank otherwise
+# - inc_all_indirect_tests true if all kinds of problematic unit tests among
+# the unit tests of the dependencies should be
+# included, blank otherwise
+# - excl_cxx_tests true if C++ interoperability tests should be excluded,
+# blank otherwise
+# - excl_longrunning_tests true if long-runnings tests should be excluded,
+# blank otherwise
+# - excl_privileged_tests true if tests that require root privileges should be
+# excluded, blank otherwise
+# - excl_unportable_tests true if tests that fail on some platforms should be
+# excluded, blank otherwise
+# - avoidlist list of modules to avoid
+# - cond_dependencies true if conditional dependencies shall be supported,
+# blank otherwise
+# - tmp pathname of a temporary directory
+# Output:
+# - modules list of modules, including dependencies
+# - conddep_dependers, conddep_condition information about conditionally
+# enabled modules
+func_modules_transitive_closure ()
+{
+ sed_escape_dependency='s|\([/.]\)|\\\1|g'
+ # In order to process every module only once (for speed), process an "input
+ # list" of modules, producing an "output list" of modules. During each round,
+ # more modules can be queued in the input list. Once a module on the input
+ # list has been processed, it is added to the "handled list", so we can avoid
+ # to process it again.
+ handledmodules=
+ inmodules="$modules"
+ outmodules=
+ fmtc_inc_all_tests="$inc_all_direct_tests"
+ if test "$cond_dependencies" = true; then
+ for module in $inmodules; do
+ func_verify_module
+ if test -n "$module"; then
+ if func_acceptable $module; then
+ func_uncond_add_module $module
+ fi
+ fi
+ done
+ fi
+ while test -n "$inmodules"; do
+ inmodules_this_round="$inmodules"
+ inmodules= # Accumulator, queue for next round
+ for module in $inmodules_this_round; do
+ func_verify_module
+ if test -n "$module"; then
+ if func_acceptable $module; then
+ func_append outmodules " $module"
+ if test "$cond_dependencies" = true; then
+ if func_get_automake_snippet_conditional $module | grep '^if ' > /dev/null; then
+ # A module whose Makefile.am snippet contains a reference to an
+ # automake conditional. If we were to use it conditionally, we
+ # would get an error
+ # configure: error: conditional "..." was never defined.
+ # because automake 1.11.1 does not handle nested conditionals
+ # correctly. As a workaround, make the module unconditional.
+ func_uncond_add_module $module
+ fi
+ if func_cond_module_p $module; then
+ conditional=true
+ else
+ conditional=false
+ fi
+ fi
+ deps=`func_get_dependencies $module | sed -e "$sed_dependencies_without_conditions"`
+ # Duplicate dependencies are harmless, but Jim wants a warning.
+ duplicated_deps=`echo "$deps" | LC_ALL=C sort | LC_ALL=C uniq -d`
+ if test -n "$duplicated_deps"; then
+ func_warning "module $module has duplicated dependencies: "`echo $duplicated_deps`
+ fi