I sometimes run pbulk with limited_list. And on 6.99.23, Switching gcc, clang 3.2 and clang 3.3.
For me, it will be nice to have those compiler info on reporting mail. I have my local patch:

--- usr/pkg_bulk/libexec/pbulk/pre-build.orig	2013-11-01 16:48:49.000000000 +0900
+++ usr/pkg_bulk/libexec/pbulk/pre-build	2014-02-04 12:17:22.000000000 +0900
@@ -84,9 +84,16 @@
 opver=`cd ${pkgsrc}/pkgtools/pkg_install && ${make} show-var VARNAME=OS_VERSION`
 platform=`cd ${pkgsrc}/pkgtools/pkg_install && ${make} show-var VARNAME=MACHINE_ARCH`
 compiler=`cd ${pkgsrc}/pkgtools/pkg_install && ${make} show-var VARNAME=PKGSRC_COMPILER`
+clang_version=`cd ${pkgsrc}/pkgtools/pkg_install && clang --version || echo no clang`
+cc_version=`cd ${pkgsrc}/pkgtools/pkg_install && cc --version || echo no clang`
 
 echo "PLATFORM=${opsys} ${opver}/${platform}" > ${loc}/status
 echo "COMPILER=${compiler}" >> ${loc}/status
+if [ ${compiler} = "clang" ] ;then
+echo "COMPILER_VERSION=${clang_version}" >> ${loc}/status
+else
+echo "COMPILER_VERSION=${cc_version}" >> ${loc}/status
+fi
 
 date '+%Y-%m-%d %H:%M|%Y%m%d.%H%M' | sed 's/^\(.*\)|\(.*\)$/BUILD_START_ISO=\1\
 BUILD_START_DIR=\2/' >> ${loc}/status

--- usr/pkg_bulk/libexec/pbulk/create-report-txt.orig	2013-11-01 16:48:49.000000000 +0900
+++ usr/pkg_bulk/libexec/pbulk/create-report-txt	2014-02-04 13:34:08.000000000 +0900
@@ -64,6 +64,8 @@
 			pkgsrc_platform = substr($0, 10)
 		else if ($0 ~ "^COMPILER=")
 			pkgsrc_compiler = substr($0, 10)
+		else if ($0 ~ "^COMPILER_VERSION=")
+			compiler_version = substr($0, 18)
 		else if ($0 ~ "^BUILD_START_ISO=")
 			pkgsrc_build_start_iso = substr($0, 17)
 		else if ($0 ~ "^BUILD_START_DIR=")
@@ -123,6 +125,7 @@
 	print "" > txt_report
 	print pkgsrc_platform > txt_report
 	print "Compiler: " pkgsrc_compiler > txt_report
+	print "Compiler version: " compiler_version > txt_report
 	print "" > txt_report
 	print "Build start: " pkgsrc_build_start_iso > txt_report
 	print "Build end:   " pkgsrc_build_end_iso > txt_report