contrib: add minimal errno.h target (for WinCE)

WinCE lacks errno support and thus doesn't have an errno.h header.
Since it is used like everywhere, contribs and VLC, we add a .errno
target in the contribs, that fetches a minimal errno.h that allows
everything to compile smoothly.

This is how it was done before too.

extras/contrib/src/Makefile

@@ -229,6 +229,22 @@ endef
 #	$(INSTALL_NAME)
 #	touch $@
 
+# ***************************************************************************
+# errno
+# ***************************************************************************
+
+errno:
+	mkdir -p $@
+	$(WGET) $(ERRNO_URL)/errno.h -O $@/errno.h
+
+.errno: errno
+	mkdir -p $(PREFIX)/include
+	cp $</errno.h $(PREFIX)/include
+	touch $@
+
+CLEAN_FILE += .errno
+CLEAN_PKG += errno
+
 # ***************************************************************************
 # autoconf
 # ***************************************************************************

extras/contrib/src/packages.mak

@@ -32,6 +32,7 @@ LIBAMR_NB_VERSION=7.0.0.0
 LIBAMR_NB=$(PENGUIN)/amrnb-$(LIBAMR_NB_VERSION).tar.bz2
 LIBAMR_WB_VERSION=7.0.0.2
 LIBAMR_WB=$(PENGUIN)/amrwb-$(LIBAMR_WB_VERSION).tar.bz2
+ERRNO_URL=http://altair.videolan.org/~linkfanel/errno
 AUTOCONF_VERSION=2.63
 AUTOCONF_URL=$(GNU)/autoconf/autoconf-$(AUTOCONF_VERSION).tar.bz2
 GNUMAKE_VERSION=3.81