diff -ur lin_tape-3.0.8/Makefile lin_tape-3.0.8-norh/Makefile
--- lin_tape-3.0.8/Makefile	2016-06-19 09:57:15.497134019 +0200
+++ lin_tape-3.0.8-norh/Makefile	2016-06-19 09:53:34.317661494 +0200
@@ -18,15 +18,6 @@
 lin_tape-objs := join.o lin_tape_scsi_config.o lin_tape_scsi_tape.o lin_tape_scsi_trace.o \
              lin_tape_ioctl_tape.o lin_tape_ioctl_changer.o lin_tape_extra_ioctl.o
 
-RHELRELEASE := $(shell [ -f "/etc/redhat-release" ] && echo 1 || echo 0)
-ifeq ($(RHELRELEASE), 1)
-KERNELDIR ?= /lib/modules/$(shell uname -r)/build
-KERNELVER = $(shell cd ${KERNELDIR}; make kernelversion 2>/dev/null|sed "s/[\.-]/_/g"|sed "s/\([0-9]*_[0-9]*_[0-9]*_[0-9]*\).*/\1/")
-EXTRA_CFLAGS += -DKERNELVERSION_${KERNELVER}
-else
-EXTRA_CFLAGS += -DSLESVERSION
-endif
-             
 PROC := $(shell uname -m)
 
 ifeq ($(PROC), ppc64)
diff -ur lin_tape-3.0.8/pfo.h lin_tape-3.0.8-norh/pfo.h
--- lin_tape-3.0.8/pfo.h	2016-03-17 03:37:58.000000000 +0100
+++ lin_tape-3.0.8-norh/pfo.h	2016-06-19 09:53:34.000000000 +0200
@@ -26,82 +26,6 @@
  * will build for various releases of Linux.  This is how
  * we track different versions using ifdef in the source.
  */
-#ifdef KERNELVERSION_2_6_32_220
-#define BEFORE_RH_63 1
-#define BEFORE_RH_64 1
-#define BEFORE_RH_65 1
-#define BEFORE_RH_66 1
-#define BEFORE_RH_67 1
-#define BEFORE_RH_70 1
-#define BEFORE_RH_71 1
-#endif
-#ifdef KERNELVERSION_2_6_32_279
-#define AFTER_RH_62 1
-#define BEFORE_RH_64 1
-#define BEFORE_RH_65 1
-#define BEFORE_RH_66 1
-#define BEFORE_RH_67 1
-#define BEFORE_RH_70 1
-#define BEFORE_RH_71 1
-#endif
-#ifdef KERNELVERSION_2_6_32_358
-#define AFTER_RH_62 1
-#define AFTER_RH_63 1
-#define BEFORE_RH_65 1
-#define BEFORE_RH_66 1
-#define BEFORE_RH_67 1
-#define BEFORE_RH_70 1
-#define BEFORE_RH_71 1
-#endif
-#ifdef KERNELVERSION_2_6_32_431
-#define AFTER_RH_62 1
-#define AFTER_RH_63 1
-#define AFTER_RH_64 1
-#define BEFORE_RH_66 1
-#define BEFORE_RH_67 1
-#define BEFORE_RH_70 1
-#define BEFORE_RH_71 1
-#endif
-#ifdef KERNELVERSION_2_6_32_504
-#define AFTER_RH_62 1
-#define AFTER_RH_63 1
-#define AFTER_RH_64 1
-#define AFTER_RH_65 1
-#define BEFORE_RH_67 1
-#define BEFORE_RH_70 1
-#define BEFORE_RH_71 1
-#endif
-#ifdef KERNELVERSION_2_6_32_573
-#define AFTER_RH_62 1
-#define AFTER_RH_63 1
-#define AFTER_RH_64 1
-#define AFTER_RH_65 1
-#define AFTER_RH_66 1
-#define BEFORE_RH_70 1
-#define BEFORE_RH_71 1
-#endif
-#ifdef KERNELVERSION_3_10_0_123
-#define AFTER_RH_62 1
-#define AFTER_RH_63 1
-#define AFTER_RH_64 1
-#define AFTER_RH_65 1
-#define AFTER_RH_66 1
-#define AFTER_RH_67 1
-#define AFTER_RH_6x 1
-#define BEFORE_RH_71 1
-#endif
-#ifdef KERNELVERSION_3_10_0_229
-#define AFTER_RH_62 1
-#define AFTER_RH_63 1
-#define AFTER_RH_64 1
-#define AFTER_RH_65 1
-#define AFTER_RH_66 1
-#define AFTER_RH_67 1
-#define AFTER_RH_6x 1
-#define AFTER_RH_70 1
-#define BEFORE_RH_72 1
-#endif
-#ifdef KERNELVERSION_3_10_0_327
 #define AFTER_RH_62 1
 #define AFTER_RH_63 1
 #define AFTER_RH_64 1
@@ -111,7 +35,6 @@
 #define AFTER_RH_6x 1
 #define AFTER_RH_70 1
 #define AFTER_RH_72 1
-#endif
 
 /* Misc defines needed so source is same for all versions of Linux */
 #ifndef SDEV_TRANSPORT_OFFLINE
diff -ur lin_tape-3.0.8/sgmp.c lin_tape-3.0.8-norh/sgmp.c
--- lin_tape-3.0.8/sgmp.c	2016-03-17 04:44:07.000000000 +0100
+++ lin_tape-3.0.8-norh/sgmp.c	2016-06-19 09:55:40.075920922 +0200
@@ -262,31 +262,11 @@
 {
 	struct sg_fd *sfp = (struct sg_fd *)filp->private_data;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0) && (!defined(SLESVERSION))
-	/* RHEL 7.0 and beyond */
 	struct request_queue *q = sfp->parentdp->device->request_queue;
-#else
-#ifdef AFTER_RH_63
-	/* RHEL 6.4+ */
-	struct request_queue *q = sfp->parentdp->device->request_queue;
-#endif
-#endif
-
 	if (sfp->parentdp->device->type == TYPE_SCANNER)
 		return 0;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0) && (!defined(SLESVERSION))
-	/* RHEL 7.0 and beyond */
-	return blk_verify_command(q, cmd, filp->f_mode & FMODE_WRITE);
-#else
-#ifdef AFTER_RH_63
-	/* RHEL 6.4+ */
-	return blk_verify_command(q, cmd, filp->f_mode & FMODE_WRITE);
-#else
-	/* RHEL6.3- or SLES11SP3 */
 	return blk_verify_command(cmd, filp->f_mode & FMODE_WRITE);
-#endif
-#endif
 }
 
 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,32)
diff -ur lin_tape-3.0.8/upper.c lin_tape-3.0.8-norh/upper.c
--- lin_tape-3.0.8/upper.c	2016-02-23 20:19:55.000000000 +0100
+++ lin_tape-3.0.8-norh/upper.c	2016-06-19 09:56:18.759745753 +0200
@@ -266,20 +266,7 @@
 {
 	if (copy_from_user(pfo_cmd->scsi_cmd, hdr->cmdp, hdr->cmd_len))
 		return -EFAULT;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0) && (!defined(SLESVERSION))
-	/* RHEL 7.0 and beyond */
-	if (blk_verify_command(q, pfo_cmd->scsi_cmd, mode & FMODE_WRITE))
-#else
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
-#ifdef AFTER_RH_63
-	/* RHEL 6.4+ */
-	if (blk_verify_command(q, pfo_cmd->scsi_cmd, mode & FMODE_WRITE))
-#else
-	/* RHEL 6.3- or SLES11SP3 */
 	if (blk_verify_command(pfo_cmd->scsi_cmd, mode & FMODE_WRITE))
-#endif
-#endif
-#endif
 		return -EPERM;
 
 	/*
--- lin_tape-3.0.8/sgmp.c~	2016-06-19 13:18:16.000000000 +0200
+++ lin_tape-3.0.8/sgmp.c	2016-06-19 13:21:28.375961483 +0200
@@ -1544,7 +1544,7 @@
 		if ((sdp->sgdebug > 0) &&
 		    ((CHECK_CONDITION == srp->header.masked_status) ||
 		     (COMMAND_TERMINATED == srp->header.masked_status)))
-#ifdef AFTER_RH_72
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
 			__scsi_print_sense(sdp->device, "sg_cmd_done", sense, SCSI_SENSE_BUFFERSIZE);
 
 #else
--- lin_tape-3.0.8/stmp.c~	2016-06-19 13:18:16.000000000 +0200
+++ lin_tape-3.0.8/stmp.c	2016-06-19 13:21:10.882407139 +0200
@@ -467,7 +467,7 @@
 		       SRpnt->cmd[0], SRpnt->cmd[1], SRpnt->cmd[2],
 		       SRpnt->cmd[3], SRpnt->cmd[4], SRpnt->cmd[5]);
 		if (cmdstatp->have_sense)
-#ifdef AFTER_RH_72
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
 			__scsi_print_sense(STp->device, name, SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
 
 #else
@@ -488,7 +488,7 @@
 			 scode != VOLUME_OVERFLOW &&
 			 SRpnt->cmd[0] != MODE_SENSE &&
 			 SRpnt->cmd[0] != TEST_UNIT_READY) {
-#ifdef AFTER_RH_72
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
 			__scsi_print_sense(STp->device, name, SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
 
 #else