muscle: fix build, enable x86_64.

* fix #227

net-misc/muscle/muscle-6.00.recipe

@@ -18,11 +18,11 @@ LICENSE="BSD (3-clause)"
 HOMEPAGE="https://public.msli.com/lcs/muscle/index.html"
 SRC_URI="https://public.msli.com/lcs/muscle/muscle6.00.zip"
 CHECKSUM_SHA256="b12abe12b5cc4aa93126f86ae07a4bcd02ee8d89d692789435debd5becc53437"
-REVISION="1"
+REVISION="2"
 
 #TODO:enable multithreading for the devel package!
 
-ARCHITECTURES="x86 ?x86_64"
+ARCHITECTURES="x86 x86_64"
 if [ $effectiveTargetArchitecture != x86_gcc2 ]; then
 	# x86_gcc2 is fine as primary target architecture as long as we're building
 	# for a different secondary architecture.
@@ -37,6 +37,8 @@ PROVIDES="
 	"
 REQUIRES="
 	haiku$secondaryArchSuffix
+	lib:libstdc++$secondaryArchSuffix
+	lib:libgcc_s$secondaryArchSuffix
 	"
 BUILD_REQUIRES="
 	haiku${secondaryArchSuffix}_devel
@@ -54,6 +56,10 @@ PATCHES="muscle-6.00.patchset"
 
 BUILD()
 {
+	if [ $effectiveTargetArchitecture == x86_64 ]; then
+		CXXFLAGS="-DMUSCLE_64_BIT_PLATFORM"
+	fi
+	export CXXFLAGS="-D_BSD_SOURCE $CXXFLAGS"
 	cd server
 	make $jobArgs all libmuscle.a
 }