add ld.so.conf for bundled aarch64 llvm libs

Resolves: rhbz#1918080

this addresses missing llc/opt RPATH for libLLVM-7.so

ghc.spec

@@ -44,7 +44,7 @@ Version: 8.8.4
 # - release can only be reset if *all* library versions get bumped simultaneously
 #   (sometimes after a major release)
 # - minor release numbers for a branch should be incremented monotonically
-Release: 112%{?dist}
+Release: 113%{?dist}
 Summary: Glasgow Haskell Compiler
 
 License: BSD and HaskellReport
@@ -555,6 +555,12 @@ sed -i -e "s!$PWD/llvm-%{llvm_version}.src/_build!%{ghclibdir}/llvm!" %{buildroo
 
 # Remove opt-viewer, since this is just a compatibility package.
 rm -r %{buildroot}%{ghclibdir}/llvm/share/opt-viewer
+
+# Create ld.so.conf.d entry
+mkdir -p %{buildroot}%{_sysconfdir}/ld.so.conf.d
+cat >> %{buildroot}%{_sysconfdir}/ld.so.conf.d/%{name}-%{_arch}.conf << EOF
+%{ghclibdir}/llvm/lib
+EOF
 %endif
 
 
@@ -661,6 +667,7 @@ env -C %{ghc_html_libraries_dir} ./gen_contents_index
 %{ghclibdir}/bin/ghc-iserv-dyn
 %ifarch %{ghc_llvm_archs}
 %license llvm-%{llvm_version}.src/LICENSE.TXT
+%config(noreplace) %{_sysconfdir}/ld.so.conf.d/%{name}-%{_arch}.conf
 %{ghclibdir}/llvm
 %endif
 %if %{with ghc_prof}
@@ -738,6 +745,9 @@ env -C %{ghc_html_libraries_dir} ./gen_contents_index
 
 
 %changelog
+* Tue Jun 22 2021 Jens Petersen <petersen@redhat.com> - 8.8.4-113
+- add ld.so.conf for bundled aarch64 llvm libs (#1918080)
+
 * Sat Jun 19 2021 Jens Petersen <petersen@redhat.com> - 8.8.4-112
 - remove llvm opt-viewer since it uses python2.7
 - use LLC and OPT to configure llvm paths