diff --git a/.gitignore b/.gitignore
index 1670f44..1127901 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,9 @@
 /configure
 /common.mk
 /config.mk
+/config.tmp
 /src/include/config.h
+/src/liblimb/include/limb/endian.h
 /src/liblimb/include/limb/rabin-tables.h
 /deps
 /build
diff --git a/meta/deps/skalibs/is_found b/meta/deps/skalibs/is_found
index c2181e0..1769b3a 100755
--- a/meta/deps/skalibs/is_found
+++ b/meta/deps/skalibs/is_found
@@ -1,4 +1,33 @@
 #!/bin/sh
-libdir=$1
-test -e "$libdir/libskarnet.a" || test -e "$libdir/skalibs/libskarnet.a" \
-    || test -e "$libdir/libskarnet.so"
+isint=$1
+type=$2
+dir=$3
+in=
+
+case "$type" in
+    shared)
+        file=libskarnet.so
+        ;;
+    static)
+        file=libskarnet.a
+        ;;
+    include)
+        test $isint -eq 1 && in=src/include
+        file=skalibs/skalibs.h
+        ;;
+    *)
+        exit 1
+        ;;
+esac
+
+if test -e "$dir/$in/$file"; then
+    echo $in
+    exit 0
+fi
+
+if test "$type" = "static" && test -e "$dir/skalibs/$file"; then
+    echo skalibs
+    exit 0
+fi
+
+exit 1
diff --git a/project.mk b/project.mk
index c9b92c7..bc5b882 100644
--- a/project.mk
+++ b/project.mk
@@ -1,5 +1,11 @@
 LIBS = limb
 
+all: src/liblimb/include/limb/endian.h
+CLEAN += src/liblimb/include/limb/endian.h src/liblimb/include/limb/rabin-tables.h
+
+src/liblimb/include/limb/endian.h: src/include/config.h
+	$(_GEN) tools/mkendian > $@
+
 build/liblimb/nextsplit.h/nextsplit_rabin.o \
 	build/liblimb/nextsplit.h/nextsplit_rabin.lo: src/liblimb/include/limb/rabin-tables.h
 
diff --git a/tools/mkendian b/tools/mkendian
new file mode 100755
index 0000000..7bed7fa
--- /dev/null
+++ b/tools/mkendian
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+dief()
+{
+    echo "$0: fatal: $@" >&2
+    exit 1
+}
+
+isle=0
+isbe=0
+ispdp=0
+
+if ! test -e config.tmp/endian; then dief "missing config.tmp/endian"; fi
+endian="$(cat config.tmp/endian 2>/dev/null)"
+case "$endian" in
+    LITTLE) isle=1 ;;
+    BIG) isbe=1 ;;
+    PDP) ispdp=1 ;;
+    *) dief "invalid endian: $endian" ;;
+esac
+
+cat <<EOF
+#ifndef LIMB_ENDIAN_H
+#define LIMB_ENDIAN_H
+
+#define LIMB_LITTLE    1234
+#define LIMB_BIG       4321
+#define LIMB_PDP       3412
+#define LIMB_ENDIAN    LIMB_$endian
+
+#define LIMB_IS_LE    $isle
+#define LIMB_IS_BE    $isbe
+#define LIMB_IS_PDP   $ispdp
+
+#endif /* LIMB_ENDIAN_H */
+EOF