diff --git a/Makefile b/Makefile
index ff26439..346d46a 100644
--- a/Makefile
+++ b/Makefile
@@ -98,6 +98,16 @@
 LDFLAGS += -L/usr/local/lib
 endif
 
+ifeq ($(TARGET_OS), NetBSD)
+CPPFLAGS += -I/usr/pkg/include
+LDFLAGS += -L/usr/pkg/lib
+endif
+
+ifeq ($(TARGET_OS), DragonFlyBSD)
+CPPFLAGS += -I/usr/pkg/include
+LDFLAGS += -L/usr/pkg/lib
+endif
+
 ifeq ($(TARGET_OS), DOS)
 EXEC_SUFFIX := .exe
 CPPFLAGS += -I$(DOSLIBS_BASE)/libgetopt
@@ -743,7 +753,11 @@
 define LIBPCI_TEST
 /* Avoid a failing test due to libpci header symbol shadowing breakage */
 #define index shadow_workaround_index
+#if !defined __NetBSD__ && !defined __DragonFly__
 #include <pci/pci.h>
+#else
+#include <pciutils/pci.h>
+#endif
 struct pci_access *pacc;
 int main(int argc, char **argv)
 {
diff --git a/README b/README
index a096aad..b3e50a6 100644
--- a/README
+++ b/README
@@ -80,11 +80,9 @@
 
  gmake LDFLAGS="-L$pathtolibpci" CC="gcc -I$pathtopciheaders" CFLAGS=-O2
 
-To compile on NetBSD or DragonFly BSD, use:
+To compile on NetBSD or DragonFly BSD (with pciutils, libftdi, libusb installed in /usr/pkg/), use:
 
- ln -s /usr/pkg/include/pciutils pci
- gmake CPPFLAGS="-I. -I/usr/pkg/include" \
-       LDFLAGS="-L/usr/pkg/lib -Wl,-rpath-link,/usr/pkg/lib"
+ gmake
 
 To compile on OpenBSD, use:
 
diff --git a/hwaccess.h b/hwaccess.h
index fd6eb12..83f349e 100644
--- a/hwaccess.h
+++ b/hwaccess.h
@@ -37,7 +37,13 @@
  * or as builtin.
  */
 #define index shadow_workaround_index
+
+#if !defined (__NetBSD__) && !defined (__DragonFly__)
 #include <pci/pci.h>
+#else
+#include <pciutils/pci.h>
+#endif
+
 #undef index
 #endif
 
diff --git a/util/getrevision.sh b/util/getrevision.sh
index c05f59e..709e45f 100755
--- a/util/getrevision.sh
+++ b/util/getrevision.sh
@@ -110,15 +110,33 @@
 timestamp() {
 	local t
 
+	# date syntaxes are manifold:
+	# gnu		date [-d input]... [+FORMAT]
+	# netbsd	date [-ajnu] [-d date] [-r seconds] [+format] [[[[[[CC]yy]mm]dd]HH]MM[.SS]]
+	# freebsd	date [-jnu]  [-d dst] [-r seconds] [-f fmt date | [[[[[cc]yy]mm]dd]HH]MM[.ss]] [+format] [...]
+	# dragonflybsd	date [-jnu]  [-d dst] [-r seconds] [-f fmt date | [[[[[cc]yy]mm]dd]HH]MM[.ss]] [+format] [...]
+	# openbsd	date [-aju]  [-d dst] [-r seconds] [+format] [[[[[[cc]yy]mm]dd]HH]MM[.SS]] [...]
 	if svn_is_file_tracked "$2" ; then
 		if svn_has_local_changes "$2"; then
 			t=$(date -u "$1")
 		else
-			# No local changes, get date of the last log record.
-			local last_commit_date="$(svn info "$2" | \
-						  grep '^Last Changed Date:' | \
-						  awk '{print $4" "$5" "$6}')"
-			t=$(date -d "${last_commit_date}" -u "$1")
+			# No local changes, get date of the last log record. Subversion provides that in
+			# ISO 8601 format when using the --xml switch. The sed call extracts that ignoring any
+			# fractional parts started by a comma or a dot.
+			local last_commit_date="$(svn info --xml "$2"| \
+						  sed -n -e 's/<date>\([^,\.]*\)\([\.,].*\)*Z<\/date>/\1Z/p')"
+
+			case $(uname) in
+			# Most BSD dates do not support parsing date values from user input with -d but all of
+			# them support parsing the syntax with [[[[[[cc]yy]mm]dd]HH]MM[.ss]]. We have to
+			# transform the ISO8601 date first though.
+			NetBSD|OpenBSD|DragonFly|FreeBSD)
+				last_commit_date="$(echo ${last_commit_date} | \
+				   sed -n -e 's/\(....\)-\(..\)-\(..\)T\(..\):\(..\):\(..\)Z/\1\2\3\4\5\.\6/p')"
+				t=$(date -u -j "${last_commit_date}" "$1" 2>/dev/null);;
+			*)
+				t=$(date -u -d "${last_commit_date}" "$1" 2>/dev/null);;
+			esac
 		fi
 	elif git_is_file_tracked "$2" ; then
 		# are there local changes?
@@ -126,12 +144,22 @@
 			t=$(date -u "${1}")
 		else
 			# No local changes, get date of the last commit
-			t=$(date -d "$(git log --pretty=format:"%cD" -1 -- "$2")" -u "$1")
+			case $(uname) in
+			# Most BSD dates do not support parsing date values from user input with -d but all of
+			# them support parsing epoch seconds with -r. Thanks to git we can easily use that:
+			NetBSD|OpenBSD|DragonFly|FreeBSD)
+				t=$(date -u -r "$(git log --pretty=format:%ct -1 -- $2)"  "$1" 2>/dev/null);;
+			*)
+				t=$(date -d "$(git log --pretty=format:%cD -1 -- $2)" -u "$1" 2>/dev/null);;
+			esac
 		fi
 	else
 		t=$(date -u "$1")
 	fi
 
+	if [ -z "$t" ]; then
+		echo "Warning: Could not determine timestamp." 2>/dev/null
+	fi
 	echo "${t}"
 }