4 files changed, 4 insertions, 4 deletions
diff --git a/Build/source/build-aux/config.sub b/Build/source/build-aux/config.sub
index 2d5bbeee111..f208558ec21 100755
--- a/Build/source/build-aux/config.sub
+++ b/Build/source/build-aux/config.sub
@@ -89,7 +89,7 @@ while test $# -gt 0 ; do
     - )	# Use stdin as input.
        break ;;
     -* )
-       echo "$me: invalid option $1$help"
+       echo "$me: invalid option $1$help" >&2
        exit 1 ;;
 
     *local*)
diff --git a/Build/source/libs/freetype2/freetype-src/builds/unix/config.sub b/Build/source/libs/freetype2/freetype-src/builds/unix/config.sub
index 2d5bbeee111..f208558ec21 100755
--- a/Build/source/libs/freetype2/freetype-src/builds/unix/config.sub
+++ b/Build/source/libs/freetype2/freetype-src/builds/unix/config.sub
@@ -89,7 +89,7 @@ while test $# -gt 0 ; do
     - )	# Use stdin as input.
        break ;;
     -* )
-       echo "$me: invalid option $1$help"
+       echo "$me: invalid option $1$help" >&2
        exit 1 ;;
 
     *local*)
diff --git a/Build/source/libs/icu/icu-src/source/config.sub b/Build/source/libs/icu/icu-src/source/config.sub
index 2d5bbeee111..f208558ec21 100755
--- a/Build/source/libs/icu/icu-src/source/config.sub
+++ b/Build/source/libs/icu/icu-src/source/config.sub
@@ -89,7 +89,7 @@ while test $# -gt 0 ; do
     - )	# Use stdin as input.
        break ;;
     -* )
-       echo "$me: invalid option $1$help"
+       echo "$me: invalid option $1$help" >&2
        exit 1 ;;
 
     *local*)
diff --git a/Build/source/utils/asymptote/config.sub b/Build/source/utils/asymptote/config.sub
index 2d5bbeee111..f208558ec21 100755
--- a/Build/source/utils/asymptote/config.sub
+++ b/Build/source/utils/asymptote/config.sub
@@ -89,7 +89,7 @@ while test $# -gt 0 ; do
     - )	# Use stdin as input.
        break ;;
     -* )
-       echo "$me: invalid option $1$help"
+       echo "$me: invalid option $1$help" >&2
        exit 1 ;;
 
     *local*)