Revert "Fix build problems of btrfs and packagefs for x86_64."

This reverts commit f272e63f393449d3a816970ca632764895a78cd6.

src/add-ons/kernel/file_systems/btrfs/Jamfile

@@ -18,4 +18,5 @@ KernelAddon btrfs :
 	DirectoryIterator.cpp
 	Inode.cpp
 	Volume.cpp
+	: kernel_libz.a
 ;

src/add-ons/kernel/file_systems/packagefs/Jamfile

@@ -6,7 +6,7 @@ UsePrivateKernelHeaders ;
 UsePrivateHeaders package shared storage ;
 
 
-local subDirs =
+local subDirs = 
 	indices
 	nodes
 	package
@@ -123,7 +123,7 @@ KernelAddon packagefs
 	$(HAIKU_PACKAGE_FS_PACKAGE_READER_SOURCES_V1)
 	$(libSharedSources)
 
-	: $(TARGET_KERNEL_LIBSUPC++)
+	: $(TARGET_KERNEL_LIBSUPC++) kernel_libz.a
 ;
 
 

src/system/kernel/Jamfile

@@ -128,7 +128,6 @@ KernelLd kernel_$(TARGET_ARCH) :
 	kernel_lib_posix.o
 	kernel_lib_posix_arch_$(TARGET_ARCH).o
 	kernel_misc.o
-	kernel_zlib.o
 
 	$(TARGET_KERNEL_LIBSUPC++)
 
@@ -171,7 +170,6 @@ if $(HAIKU_ARCH) = x86_64 {
 		kernel_lib_posix.o
 		kernel_lib_posix_arch_$(TARGET_ARCH).o
 		kernel_misc.o
-		kernel_zlib.o
 
 		$(TARGET_KERNEL_LIBSUPC++)
 

src/system/kernel/lib/zlib/Jamfile

@@ -17,7 +17,7 @@ LOCATE on [ FGristFiles $(zlibSources) ] = $(zlibSourceDirectory) ;
 Depends [ FGristFiles $(zlibSources) ]
 	: [ BuildFeatureAttribute zlib : sources ] ;
 
-KernelMergeObject kernel_zlib.o :
+KernelStaticLibrary kernel_libz.a :
 	$(zlibSources)
-	: $(TARGET_KERNEL_PIC_CCFLAGS)
+	: -fno-pic
 	;