https://bugs.gentoo.org/385775

utilize $SYSROOT to find the right includedir tree

drop the -L/-R paths since we know our libdir is the standard path which
the compiler already knows how to locate

--- a/apu-config.in
+++ b/apu-config.in
@@ -25,7 +25,7 @@ prefix="@prefix@"
 exec_prefix="@exec_prefix@"
 bindir="@bindir@"
 libdir="@libdir@"
-includedir="@includedir@"
+includedir="${SYSROOT}@includedir@"
 
 LIBS="@APRUTIL_EXPORT_LIBS@"
 INCLUDES="@APRUTIL_INCLUDES@"
@@ -166,7 +166,7 @@ while test $# -gt 0; do
     --link-ld)
     if test "$location" = "installed"; then
         ### avoid using -L if libdir is a "standard" location like /usr/lib
-        flags="$flags -L$libdir -l$APRUTIL_LIBNAME"
+        flags="$flags -l$APRUTIL_LIBNAME"
     else
         flags="$flags -L$APU_BUILD_DIR -l$APRUTIL_LIBNAME"
     fi
@@ -182,7 +182,7 @@ while test $# -gt 0; do
         ### avoid using -L if libdir is a "standard" location like /usr/lib
         # Since the user is specifying they are linking with libtool, we
         # *know* that -R will be recognized by libtool.
-        flags="$flags -L$libdir -R$libdir -l$APRUTIL_LIBNAME"
+        flags="$flags -l$APRUTIL_LIBNAME"
     else
         flags="$flags $LA_FILE"
     fi