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-rw-r--r--configure.in15
1 files changed, 12 insertions, 3 deletions
diff --git a/configure.in b/configure.in
index e6976ce..e8f2926 100644
--- a/configure.in
+++ b/configure.in
@@ -175,10 +175,12 @@ AC_ARG_ENABLE([add-ons],
[configure and build add-ons in DIR1,DIR2,... search for add-ons if no parameter given]),
[case "$enableval" in
yes) add_ons=`cd $srcdir && echo */configure | sed -e 's!/configure!!g'`
+ add_ons_automatic=yes
test "$add_ons" = "*" && add_ons= ;;
- *) add_ons=`echo "$enableval" | sed 's/,/ /g'`;;
+ *) add_ons=`echo "$enableval" | sed 's/,/ /g'`
+ add_ons_automatic=no ;;
esac],
- [add_ons=])
+ [add_ons= add_ons_automatic=no])
dnl Let the user avoid using TLS. Don't know why but...
dnl XXX For now we disable support by default.
@@ -363,7 +365,11 @@ if test x"$add_ons" != x; then
done
# Now source each add-on's configure fragment.
- # The fragments can use $srcdir/$libc_add_on to find themselves.
+ # The fragments can use $srcdir/$libc_add_on to find themselves,
+ # and test $add_ons_automatic to see if they were explicitly requested.
+ # A fragment can clear (or even change) $libc_add_on to affect
+ # whether it goes into the list to be actually used in the build.
+ use_add_ons=
for libc_add_on in $add_ons; do
libc_add_on_frag=$srcdir/$libc_add_on/configure
if test -r $libc_add_on_frag; then
@@ -372,7 +378,10 @@ if test x"$add_ons" != x; then
else
AC_MSG_WARN(add-on fragment $libc_add_on_frag missing)
fi
+ use_add_ons="$use_add_ons $libc_add_on"
done
+ # Use echo to strip excess whitespace.
+ add_ons="`echo $use_add_ons`"
fi
AC_SUBST(add_ons)