- dosfstools: add patch to fix iconv library linking

make/target-tools.mk

@@ -1320,12 +1320,15 @@ DOSFSTOOLS_URL    = https://github.com/dosfstools/dosfstools/releases/download/v
 $(ARCHIVE)/$(DOSFSTOOLS_SOURCE):
 	$(DOWNLOAD) $(DOSFSTOOLS_URL)/$(DOSFSTOOLS_SOURCE)
 
+DOSFSTOOLS_PATCH  = switch-to-AC_CHECK_LIB-for-iconv-library-linking.patch
+
 DOSFSTOOLS_CFLAGS = $(TARGET_CFLAGS) -D_GNU_SOURCE -fomit-frame-pointer -D_FILE_OFFSET_BITS=64
 
 dosfstools: $(ARCHIVE)/$(DOSFSTOOLS_SOURCE) | $(TARGET_DIR)
 	$(REMOVE)/$(DOSFSTOOLS_TMP)
 	$(UNTAR)/$(DOSFSTOOLS_SOURCE)
 	$(CHDIR)/$(DOSFSTOOLS_TMP); \
+		$(call apply_patches, $(addprefix $(@F)/,$(DOSFSTOOLS_PATCH))); \
 		autoreconf -fi; \
 		$(CONFIGURE) \
 			--prefix= \

patches/dosfstools/switch-to-AC_CHECK_LIB-for-iconv-library-linking.patch

@@ -0,0 +1,27 @@
+From 1c6c135ee15e449c1bf2e76d5307f83a3a1d7425 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Tue, 11 Oct 2016 12:07:48 +0200
+Subject: [PATCH] Switch to AC_CHECK_LIB for iconv library linking.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+AC_SEARCH_LIB doesn't work properly for openwrt/lede when building dosfstools
+as a package.
+
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+---
+ configure.ac | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -59,7 +59,7 @@ if test "x$with_udev" != "xno"; then
+ 		  [true])
+ fi
+ 
+-AC_SEARCH_LIBS(iconv_open, iconv)
++AC_CHECK_LIB(iconv, iconv_open)
+ 
+ # xxd (distributed with vim) is used in the testsuite
+ AC_CHECK_PROG([XXD_FOUND], [xxd], [yes])