Removing references to APREQ_SOURCE_DIR and APREQ_BUILD_DIR

--- ./apreq2-config.in

+++ ./apreq2-config.in

@@ -33,9 +33,6 @@ LDFLAGS="@APR_LDFLAGS@"

 APREQ_LIBNAME="@APREQ_LIBNAME@"

-APREQ_SOURCE_DIR="@abs_srcdir@"

-APREQ_BUILD_DIR="@abs_builddir@"

-

 show_usage()

 {

     cat << EOF

@@ -48,7 +45,6 @@ Known values for OPTION are:

   --includedir      print location where headers are installed

   --ldflags         print linker flags

   --libs            print library information

-  --srcdir          print apreq2 source directory

   --link-ld         print link switch(es) for linking to libapreq2

   --link-libtool    print the libtool inputs for linking to libapreq2

   --la-file         print the path to the library's .la file, if available

@@ -83,17 +79,12 @@ fi

 # Otherwise, being in a symlinked dir may result in incorrect output.

 if test -x "`which realpath 2>/dev/null`"; then

     thisdir="`realpath $thisdir`"

-    if test -d "$APREQ_SOURCE_DIR"; then

-        APREQ_SOURCE_DIR="`realpath $APREQ_SOURCE_DIR`"

-    fi

     if test -n "$tmpbindir"; then

         tmpbindir="`realpath $tmpbindir`"

     fi

 fi

 if test "$tmpbindir" = "$thisdir"; then

     location=installed

-elif test "$APREQ_SOURCE_DIR" = "$thisdir"; then

-    location=source

 else

     location=build

 fi

@@ -133,11 +124,9 @@ while test $# -gt 0; do

     --includedir)

     if test "$location" = "installed"; then

         flags="$includedir"

-    elif test "$location" = "source"; then

-        flags="$APREQ_SOURCE_DIR/include"

     else

         # this is for VPATH builds

-        flags="$thisdir/include $APREQ_SOURCE_DIR/include"

+        flags="$thisdir/include"

     fi

     echo $flags

     exit 0

@@ -145,20 +134,14 @@ while test $# -gt 0; do

     --includes)

     if test "$location" = "installed"; then

         flags="$flags -I$includedir $INCLUDES"

-    elif test "$location" = "source"; then

-        flags="$flags -I$APREQ_SOURCE_DIR/include $INCLUDES"

     else

         # this is for VPATH builds

-        flags="$flags -I$thisdir/include -I$APREQ_SOURCE_DIR/include $INCLUDES"

+        flags="$flags -I$thisdir/include $INCLUDES"

     fi

     ;;

     --ldflags)

     flags="$flags $LDFLAGS"

     ;;

-    --srcdir)

-    echo $APREQ_SOURCE_DIR

-    exit 0

-    ;;

     --library-version)

     echo @APREQ_DOTTED_VERSION@

     exit 0