Add a patch to remove rpath from ldc2.conf

Starting with F35, rpmbuild now fails the build if standard RPATH is
detected (https://fedoraproject.org/wiki/Changes/Broken_RPATH_will_fail_rpmbuild).

This commit drops the previous chrpath hack and instead patches ldc to
drop rpath from ldc2.conf, which should prevent the rpath from being set
in the first place.

ldc-no-default-rpath.patch

@@ -0,0 +1,14 @@
+Description:  Don't set a default rpath in global LDC configuration.
+Author: Matthias Klumpp <mak@debian.org>
+
+--- a/runtime/CMakeLists.txt
++++ b/runtime/CMakeLists.txt
+@@ -247,7 +247,7 @@
+ # Default -rpath linker option when linking against shared libraries.
+ if(SHARED_LIBS_SUPPORTED)
+     set(SHARED_LIBS_RPATH         "${CMAKE_BINARY_DIR}/lib${LIB_SUFFIX}")
+-    set(SHARED_LIBS_INSTALL_RPATH "${CMAKE_INSTALL_LIBDIR}")
++    set(SHARED_LIBS_INSTALL_RPATH "")
+ endif()
+ 
+ # Only have either shared or static libs?

ldc.spec

@@ -38,11 +38,12 @@ Source3:        macros.%{name}
 
 # Make sure /usr/include/d is in the include search path
 Patch0:         ldc-include-path.patch
+# Don't add rpath to standard libdir
+Patch1:         ldc-no-default-rpath.patch
 
 ExclusiveArch:  %{ldc_arches}
 
 BuildRequires:  bash-completion
-BuildRequires:  chrpath
 BuildRequires:  cmake
 BuildRequires:  gc
 BuildRequires:  gcc
@@ -177,12 +178,6 @@ geany -c geany_config -g phobos.d.tags $(find runtime/phobos/std -name "*.d")
 %install
 %cmake_install
 
-# Remove lib64 rpaths
-chrpath --delete %{buildroot}%{_bindir}/ldc-prune-cache
-chrpath --delete %{buildroot}%{_bindir}/ldc2
-chrpath --delete %{buildroot}%{_bindir}/ldmd2
-chrpath --delete %{buildroot}%{_bindir}/ldc-build-runtime
-
 # macros for D package
 mkdir -p %{buildroot}/%{_rpmconfigdir}/macros.d/
 install --mode=0644 %{SOURCE3} %{buildroot}%{_rpmconfigdir}/macros.d/macros.ldc