This is a fugly hack to make apr-1-config libdir-agnostic, by using
pkg-config to determine the libdir setting.  pkg-config will
magically determine the appropriate libdir setting.

This allows apr-devel.i386 and apr-devel.x86_64 to be 
installed in parallel.

--- apr-1.2.7/Makefile.in.pkgconf
+++ apr-1.2.7/Makefile.in
@@ -60,7 +60,7 @@
 
 # Create apr-config script suitable for the install tree
 apr-config.out: $(APR_CONFIG)
-	sed 's,^\(location=\).*$$,\1installed,' < $(APR_CONFIG) > $@
+	sed 's,^\(location=\).*$$,\1installed,;s,^\(APR_.*_DIR\)=.*,\1="$${libdir}/build",' < $(APR_CONFIG) > $@
 
 # Create apr_rules.mk suitable for the install tree
 build/apr_rules.out: build/apr_rules.mk
--- apr-1.2.7/apr.pc.in.pkgconf
+++ apr-1.2.7/apr.pc.in
@@ -3,9 +3,10 @@
 libdir=@libdir@
 APR_MAJOR_VERSION=@APR_MAJOR_VERSION@
 includedir=@includedir@
+CPPFLAGS=@EXTRA_CPPFLAGS@
 
 Name: APR
 Description: The Apache Portable Runtime library
 Version: @APR_DOTTED_VERSION@
 Libs: -L${libdir} -l@APR_LIBNAME@ @EXTRA_LIBS@
-Cflags: @EXTRA_CPPFLAGS@ @EXTRA_CFLAGS@ -I${includedir}
+Cflags: ${CPPFLAGS} @EXTRA_CFLAGS@ -I${includedir}
--- apr-1.2.7/apr-config.in.pkgconf
+++ apr-1.2.7/apr-config.in
@@ -24,16 +24,17 @@
 prefix="@prefix@"
 exec_prefix="@exec_prefix@"
 bindir="@bindir@"
-libdir="@libdir@"
 datarootdir="@datadir@"
 datadir="@datadir@"
-installbuilddir="@installbuilddir@"
 includedir="@includedir@"
 
+libdir=`pkg-config --variable=libdir apr-@APR_MAJOR_VERSION@`
+installbuilddir="${libdir}/apr-@APR_MAJOR_VERSION@/build"
+
 CC="@CC@"
 CPP="@CPP@"
 SHELL="@SHELL@"
-CPPFLAGS="@EXTRA_CPPFLAGS@"
+CPPFLAGS=`pkg-config --variable=CPPFLAGS apr-@APR_MAJOR_VERSION@`
 CFLAGS="@EXTRA_CFLAGS@"
 LDFLAGS="@EXTRA_LDFLAGS@"
 LIBS="@EXTRA_LIBS@"