- Fix libunbound undefined symbol errors for main.

Referencing main does not seem to be possible for libunbound.


git-svn-id: file:///svn/unbound/trunk@3280 be551aaa-1e26-0410-a405-d3ace91eadb9

config.h.in

@@ -1,8 +1,5 @@
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 
-/* define if a library can reference the 'main' symbol */
-#undef CAN_REFERENCE_MAIN
-
 /* Directory to chroot to */
 #undef CHROOT_DIR
 

configure.ac

@@ -1023,39 +1023,6 @@ if test "$USE_NSS" = "no"; then
 				AC_SEARCH_LIBS([clock_gettime], [rt])
 			;;
 			esac
-			# generate libtool to test if linking main
-			# from a dynamic library works.
-			LT_OUTPUT
-			AC_MSG_CHECKING([if dynamic lib can refer to main])
-			cat >tmp.$$.def <<EOF
-myfunc
-EOF
-			cat >tmp.$$.c <<EOF
-int myfunc(void);
-extern int main(int, char *argv[]);
-int myfunc(void)
-{
-	return ((int)main) + 1;
-}
-EOF
-			mylibtool=./libtool
-			mylibdir=/usr/local/lib
-			myok=yes
-			$mylibtool --quiet --tag=CC --mode=compile $CC $CFLAGS -o tmp.$$.lo -c tmp.$$.c >/dev/null 2>&1
-			if test $? = 0; then myok=yes; else myok=no; fi
-			if test "$myok" = "yes"; then
-			$mylibtool --quiet --tag=CC --mode=link $CC $CFLAGS -version-info 1:0:0 -no-undefined -export-symbols tmp.$$.def -o libtmp$$.la tmp.$$.lo $LDFLAGS -rpath $mylibdir $LIBS >/dev/null 2>&1
-				if test $? = 0; then myok=yes; else myok=no; fi
-			fi
-			if test "$myok" = "yes"; then
-				AC_MSG_RESULT(yes)
-				AC_DEFINE(CAN_REFERENCE_MAIN, [1], [define if a library can reference the 'main' symbol])
-			else
-				AC_MSG_RESULT(no)
-			fi
-			$mylibtool --quiet --mode=clean rm -rf libtmp$$.la tmp.$$.lo
-			rm -f tmp.$$.def tmp.$$.c libtmp$$.la tmp.$$.lo tmp.$$.o
-
 		    fi
 		])
 	fi

doc/Changelog

@@ -1,3 +1,7 @@
+26 November 2014: Wouter
+	- Fix libunbound undefined symbol errors for main.
+	  Referencing main does not seem to be possible for libunbound.
+
 24 November 2014: Wouter
 	- Fix log at high verbosity and memory allocation failure.
 	- iana portlist update.