Use RUNPATH instead of RPATH so that end users can override the library
search path (and the 'validate-runpath' phase can do its work).

diff --git a/build/config/gcc/BUILD.gn b/build/config/gcc/BUILD.gn
--- a/build/config/gcc/BUILD.gn
+++ b/build/config/gcc/BUILD.gn
@@ -99,7 +99,14 @@ config("executable_config") {
     ]
   }
 
-  if (!is_android && current_os != "aix") {
+  if (is_linux) {
+    ldflags += [
+      # Set DT_RUNPATH instead of DT_RPATH which is important because the
+      # former can be overridden at runtime, and Guix has support for
+      # verifying that nothing is missing.
+      "-Wl,--enable-new-dtags",
+    ]
+  } else if (!is_android && current_os != "aix") {
     ldflags += [
       # TODO(GYP): Do we need a check on the binutils version here?
       #

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<tr><td><span title='2016-05-03 17:45:29 +0200'>2016-05-03</span></td><td><a href='/guix/commit/gnu/packages/patches/gcc-cross-environment-variables.patch?id=efc4eb147512fa7a2c6d74d9b296cfc22b1ef198'>gnu: cross: Use CROSS_*_INCLUDE_PATH for system headers.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/patches/gcc-cross-environment-variables.patch: Also use CROSS_
variants: CROSS_C_INCLUDE_PATH, CROSS_CPLUS_INCLUDE_PATH,
CROSS_OBJC_INCLUDE_PATH, CROSS_OBJCPLUS_INCLUDE_PATH to be used for system
libraries, see
https://lists.gnu.org/archive/html/guix-devel/2016-04/msg00620.html.
* gnu/packages/cross-base.scm (cross-gcc, cross-gcc-arguments, cross-libc):
Use CROSS_*_INCLUDE_PATH (WAS: CPATH).

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Jan Nieuwenhuizen</td></tr>