configure: make --includedir=/usr/src/foo work

diff --git a/configure b/configure
index 5584e654c55c78cfcb2d9470cbcd3d8b810d5e88..0eccc10487138085ab7088d2a31c732d9dda51fb 100755 (executable)
--- a/configure
+++ b/configure
@@ -20,6 +20,7 @@ BUILD=
 HOST=
 HOSTCC=
 TARGET=
+INCLUDEDIR=
 DEBUG=
 FORK=
 STATIC=
@@ -71,6 +72,7 @@ for x do
        --mandir) MANDIR=$var;;
        --datadir) DATADIR=$var;;
        --with-ccopts|CFLAGS) CFLAGS=$var;;
+       -I|--includedir) INCLUDEDIR="$INCLUDEDIR${INCLUDEDIR:+ }-I$var";;
        CC) CC=$var;;
        CPPFLAGS) CPPFLAGS=$var;;
        PKG_CONFIG) PKG_CONFIG=$var;;
@@ -307,6 +309,9 @@ if [ -n "$CPPFLAGS" ]; then
        echo "CPPFLAGS=" >>$CONFIG_MK
        echo "CPPFLAGS+=        $CPPFLAGS" >>$CONFIG_MK
 fi
+if [ -n "$INCLUDEDIR" ]; then
+       echo "CPPFLAGS+=        $INCLUDEDIR" >>$CONFIG_MK
+fi
 if [ -n "$LDFLAGS" ]; then
        echo "LDFLAGS=" >>$CONFIG_MK
        echo "LDFLAGS+= $LDFLAGS" >>$CONFIG_MK