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-rwxr-xr-xsysdeps/mach/hurd/configure4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/configure b/sysdeps/mach/hurd/configure
index 99497b81df..fb91f88100 100755
--- a/sysdeps/mach/hurd/configure
+++ b/sysdeps/mach/hurd/configure
@@ -5,3 +5,7 @@ DEFINES="$DEFINES -D_LIBC_REENTRANT"
 # Don't bother trying to generate any glue code to be compatible with the
 # existing system library, because we are the only system library.
 inhibit_glue=yes
+
+if test "x$prefix" != x; then
+  echo "configure: warning: --prefix= (empty) is required for GNU/Hurd to work normally" 1>&2
+fi