libconfig: bump version.

* avoid regen because the library version then changes.

dev-libs/libconfig/libconfig-1.6.recipe

@@ -6,9 +6,9 @@ systems like handheld devices."
 HOMEPAGE="http://www.hyperrealm.com/libconfig/"
 COPYRIGHT="2005-2015 Mark A Lindner"
 LICENSE="GNU LGPL v3"
-REVISION="2"
-SOURCE_URI="http://www.hyperrealm.com/libconfig/libconfig-$portVersion.tar.gz"
-CHECKSUM_SHA256="e31daa390d8e4461c8830512fe2e13ba1a3d6a02a2305a02429eec61e68703f6"
+REVISION="1"
+SOURCE_URI="https://github.com/hyperrealm/libconfig/archive/v$portVersion.tar.gz"
+CHECKSUM_SHA256="18739792eb463d73525d7aea9b0a48b14106fae1cfec09aedc668d8c1079adf1"
 
 ARCHITECTURES="!x86_gcc2 x86 x86_64"
 SECONDARY_ARCHITECTURES="!x86_gcc2 x86"
@@ -35,9 +35,6 @@ BUILD_REQUIRES="
 	haiku${secondaryArchSuffix}_devel
 	"
 BUILD_PREREQUIRES="
-	cmd:aclocal
-	cmd:autoconf
-	cmd:automake
 	cmd:bison
 	cmd:flex
 	cmd:g++$secondaryArchSuffix
@@ -49,7 +46,8 @@ BUILD_PREREQUIRES="
 
 BUILD()
 {
-	runConfigure ./configure
+	ACLOCAL=true AUTOCONF=true AUTOMAKE=true MAKEINFO=true AUTOHEADER=true \
+		runConfigure ./configure
 	make $jobArgs
 }