/usr/bin/libwmf-config is in libwmf-dev 0.2.8.4-10.3+deb8u2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 | #!/bin/sh
exec_prefix_set=no
case `uname` in
  CYGWIN*)
    prefix=`bash -c "type -p libwmf-config"`
    prefix=`dirname $prefix`
    prefix=`dirname $prefix`
    prefix=`cygpath -m "$prefix"`
    exec_prefix="$prefix"
  ;;
  *)
    prefix=/usr
    exec_prefix=${prefix}
  ;;
esac
usage()
{
	cat <<EOF
Usage: libwmf-config [OPTIONS] [LIBRARIES]
Options:
	[--prefix[=DIR]]
	[--exec-prefix[=DIR]]
	[--version]
	[--libs]
	[--cflags]
Libraries/Headers:
	gd
	wmf
EOF
	exit $1
}
if test $# -eq 0; then
	usage 1 1>&2
fi
lib_gd=no
lib_wmf=yes
while test $# -gt 0; do
  case "$1" in
  -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) optarg= ;;
  esac
  case $1 in
    --prefix=*)
      prefix=$optarg
      if test $exec_prefix_set = no ; then
        exec_prefix=$optarg
      fi
      ;;
    --prefix)
      echo_prefix=yes
      ;;
    --exec-prefix=*)
      exec_prefix=$optarg
      exec_prefix_set=yes
      ;;
    --exec-prefix)
      echo_exec_prefix=yes
      ;;
    --version)
      echo 0.2.8
      ;;
    --cflags)
      echo_cflags=yes
      ;;
    --libs)
      echo_libs=yes
      ;;
    gd)
      lib_gd=yes
      ;;
    wmf)
      lib_wmf=yes
      ;;
    *)
      usage 1 1>&2
      ;;
  esac
  shift
done
if test "$echo_prefix" = "yes"; then
	echo $prefix
fi
if test "$echo_exec_prefix" = "yes"; then
	echo $exec_prefix
fi
wmf_cflags="-I/usr/include/freetype2  "
wmf_liblflags="  -L/usr/lib/x86_64-linux-gnu -lfreetype -lz -lpng12  -lX11 -lexpat -ljpeg -lpng -lz -lm"
case `uname` in
  CYGWIN*)
    wmf_cflags=`echo $wmf_cflags | sed -e "s%/usr%$prefix%"`
    wmf_liblflags=`echo $wmf_liblflags | sed -e "s%/usr%$prefix%"`
  ;;
esac
libwmf_buildstyle=heavy
if test $libwmf_buildstyle = heavy; then
	wmf_libs="-lwmf -lwmflite $wmf_liblflags"
else
	wmf_libs="-lwmflite"
fi
if test "$echo_cflags" = "yes"; then
	includes="$wmf_cflags"
	if test "$lib_gd" = "yes"; then
		includes="$includes -I${prefix}/include/libwmf/gd"
	fi
	if test "$lib_wmf" = "yes"; then
		includes="$includes -I${prefix}/include"
	fi
	echo $includes
fi
if test "$echo_libs" = "yes"; then
	libdirs=-L${prefix}/lib/x86_64-linux-gnu
	my_wmf_libs=
	for i in $wmf_libs ; do
		if test "x$i" != "x-L${prefix}/lib/x86_64-linux-gnu" ; then
			if test -z "$my_wmf_libs" ; then
				my_wmf_libs="$i"
			else
				my_wmf_libs="$my_wmf_libs $i"
			fi
		fi
	done
	echo $libdirs $my_wmf_libs
fi      
 |