Apparently, + has no special meaning, and neither does \+, in so-called

"obsolete" / POSIX "basic" regular expressions.  Also, not every version of
`sed` out there supports the `-E` option.  So delete the -E flag and use
the regex `[^/][^/]*` instead of `[^/]+`.

Add config/netbsd to the MANIFEST.

MANIFEST

@@ -136,6 +136,7 @@
 ./config/linux-gnulibc2
 ./config/lt_vers.am
 ./config/Makefile.am.blank
+./config/netbsd
 ./config/pgi-fflags
 ./config/pgi-flags
 ./config/solaris

c++/examples/run-c++-ex.sh.in

@@ -47,7 +47,7 @@ prefix=@prefix@
 examplesdir=@examplesdir@
 if [ ${examplesdir##${prefix}/} != ${examplesdir} ]; then
 	echo $(echo ${examplesdir##${prefix}/} | \
-	    sed -E 's,[^/]+,..,g')
+	    sed 's,[^/][^/]*,..,g')
 else
 	echo $prefix
 fi

examples/run-c-ex.sh.in

@@ -46,7 +46,7 @@ prefix=@prefix@
 examplesdir=@examplesdir@
 if [ ${examplesdir##${prefix}/} != ${examplesdir} ]; then
 	echo $(echo ${examplesdir##${prefix}/} | \
-	    sed -E 's,[^/]+,..,g')
+	    sed 's,[^/][^/]*,..,g')
 else
 	echo $prefix
 fi

fortran/examples/run-fortran-ex.sh.in

@@ -47,7 +47,7 @@ prefix=@prefix@
 examplesdir=@examplesdir@
 if [ ${examplesdir##${prefix}/} != ${examplesdir} ]; then
 	echo $(echo ${examplesdir##${prefix}/} | \
-	    sed -E 's,[^/]+,..,g')
+	    sed 's,[^/][^/]*,..,g')
 else
 	echo $prefix
 fi

hl/c++/examples/run-hlc++-ex.sh.in

@@ -47,7 +47,7 @@ prefix=@prefix@
 examplesdir=@examplesdir@
 if [ ${examplesdir##${prefix}/} != ${examplesdir} ]; then
 	echo $(echo ${examplesdir##${prefix}/} | \
-	    sed -E 's,[^/]+,..,g')
+	    sed 's,[^/][^/]*,..,g')
 else
 	echo $prefix
 fi

hl/examples/run-hlc-ex.sh.in

@@ -46,7 +46,7 @@ prefix=@prefix@
 examplesdir=@examplesdir@
 if [ ${examplesdir##${prefix}/} != ${examplesdir} ]; then
 	echo $(echo ${examplesdir##${prefix}/} | \
-	    sed -E 's,[^/]+,..,g')
+	    sed 's,[^/][^/]*,..,g')
 else
 	echo $prefix
 fi