$1/package.conf.install:
$$(CPP) $$(RAWCPP_FLAGS) -P \
-DINSTALLING \
- -DLIB_DIR='"$$(ghclibdir)"' \
- -DINCLUDE_DIR='"$$(ghclibdir)/include"' \
+ -DLIB_DIR='"$$(if $$(filter YES,$$(RelocatableBuild)),$$$$topdir,$$(ghclibdir))"' \
+ -DINCLUDE_DIR='"$$(if $$(filter YES,$$(RelocatableBuild)),$$$$topdir,$$(ghclibdir))/include"' \
$$($1_PACKAGE_CPP_OPTS) \
-x c -I$$(GHC_INCLUDE_DIR) $1/package.conf.in | \
grep -v '^#pragma GCC' | \