From 0111acb46984e7167fa35d5401373b3811b8de8e Mon Sep 17 00:00:00 2001
From: Turbo Fredriksson <turbo@bayour.com>
Date: Tue, 7 Jul 2015 21:59:06 +0200
Subject: [PATCH] Only build the dracut package if /usr/lib/dracut exists.

---
 config/zfs-build.m4     | 12 +++++++++++-
 rpm/generic/zfs.spec.in | 18 +++++++++++++++---
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/config/zfs-build.m4 b/config/zfs-build.m4
index f93c5b5d4cca..0474bfd10b11 100644
--- a/config/zfs-build.m4
+++ b/config/zfs-build.m4
@@ -140,7 +140,7 @@ AC_DEFUN([ZFS_AC_RPM], [
 	])
 
 	RPM_DEFINE_COMMON='--define "$(DEBUG_ZFS) 1" --define "$(DEBUG_DMU_TX) 1"'
-	RPM_DEFINE_UTIL='--define "_dracutdir $(dracutdir)" --define "_udevdir $(udevdir)" --define "_udevruledir $(udevruledir)" --define "_initconfdir $(DEFAULT_INITCONF_DIR)" $(DEFINE_INITRAMFS)'
+	RPM_DEFINE_UTIL='--define "_dracutdir $(dracutdir)" --define "_udevdir $(udevdir)" --define "_udevruledir $(udevruledir)" --define "_initconfdir $(DEFAULT_INITCONF_DIR)" $(DEFINE_INITRAMFS) $(DEFINE_DRACUT)'
 	RPM_DEFINE_KMOD='--define "kernels $(LINUX_VERSION)" --define "require_spldir $(SPL)" --define "require_splobj $(SPL_OBJ)" --define "ksrc $(LINUX)" --define "kobj $(LINUX_OBJ)"'
 	RPM_DEFINE_DKMS=
 
@@ -334,6 +334,16 @@ AC_DEFUN([ZFS_AC_DEFAULT_PACKAGE], [
 		AC_MSG_RESULT([no])
 	fi
 	AC_SUBST(DEFINE_INITRAMFS)
+
+	AC_MSG_CHECKING([whether dracut is available])
+	if test -d /usr/lib/dracut ; then
+		DEFINE_DRACUT='--define "_dracut 1"'
+		AC_MSG_RESULT([yes])
+	else
+		DEFINE_DRACUT=''
+		AC_MSG_RESULT([no])
+	fi
+	AC_SUBST(DEFINE_DRACUT)
 ])
 
 dnl #
diff --git a/rpm/generic/zfs.spec.in b/rpm/generic/zfs.spec.in
index 6313f0bfb4b6..7415f87ce4f2 100644
--- a/rpm/generic/zfs.spec.in
+++ b/rpm/generic/zfs.spec.in
@@ -19,13 +19,19 @@
 %endif
 %endif
 
+%if 0%{?_dracut}
 # Set the default dracut directory based on distribution.
 %if %{undefined _dracutdir}
 %if 0%{?fedora} >= 17 || 0%{?rhel} >= 7 || 0%{?centos} >= 7
-%global _dracutdir  %{_prefix}/lib/dracut
+%global _dracutopt  --with-dracutdir=%{_prefix}/lib/dracut
 %else
-%global _dracutdir  %{_prefix}/share/dracut
+%global _dracutopt  --with-dracutdir=%{_prefix}/share/dracut
 %endif
+%else
+%global _dracutopt  --with-dracutdir=%{_dracutdir}
+%endif
+%else
+%global _dracutopt ''
 %endif
 
 # Set the default _initconfdir when undefined.
@@ -184,6 +190,7 @@ Requires:       bc
 This package contains test infrastructure and support scripts for
 validating the file system.
 
+%if 0%{?_dracut}
 %package dracut
 Summary:        Dracut module
 Group:          System Environment/Kernel
@@ -194,6 +201,7 @@ Requires:       dracut
 %description dracut
 This package contains a dracut module used to construct an initramfs
 image which is ZFS aware.
+%endif
 
 %if 0%{?_initramfs}
 %package initramfs
@@ -232,8 +240,8 @@ image which is ZFS aware.
     --with-config=user \
     --with-udevdir=%{_udevdir} \
     --with-udevruledir=%{_udevruledir} \
-    --with-dracutdir=%{_dracutdir} \
     --disable-static \
+    %{_dracutopt} \
     %{debug} \
     %{blkid} \
     %{systemd}
@@ -318,9 +326,13 @@ exit 0
 %files test
 %{_datadir}/%{name}
 
+%if 0%{?_dracut}
 %files dracut
 %doc contrib/dracut/README.dracut.markdown
 %{_dracutdir}/modules.d/*
+%else
+%exclude %{_dracutdir}
+%endif
 
 %if 0%{?_initramfs}
 %files initramfs