Fix conversion from lower to upper case with Turkish locale

Some locale settings let make fail or create wrong results
because tr '[:lower:]' '[:upper:]' which is used to convert
from lower to upper case depends on the locale.

With locale tr_TR.UTF-8, lower case 'i' is not converted to 'I'.
This results in wrong entries in config-host.h like these ones:

  #define CONFIG_QEMU_PREFiX "/usr/local"
  #define CONFIG_QEMU_BiNDiR "/usr/local/bin"

This problem was reported by Emre Ersin.

The same problem occurs when configure creates the target specific
files config-target.mak. They get wrong declarations:

TARGET_CRiS=y
TARGET_i386=y
TARGET_MiCROBLAZE=y
TARGET_MiPS64=y
TARGET_MiPS=y
TARGET_UNiCORE32=y

It is sufficient to restrict the conversion to the characters a-z.

Using this explicit range avoids the dependency on the locale
settings and is also shorter.

v2:
POSIX says that 'tr a-z' is unspecified outside of the POSIX
locale, so we must set LC_ALL=C to make sure that we are using
POSIX (hint from Eric Blake, thanks).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/scripts/create_config b/scripts/create_config
index 0098e683e2..470e05e397 100755
--- a/scripts/create_config
+++ b/scripts/create_config
@@ -16,7 +16,7 @@ case $line in
  prefix=* | [a-z]*dir=*) # directory configuration
     name=${line%=*}
     value=${line#*=}
-    define_name=`echo $name | tr '[:lower:]' '[:upper:]'`
+    define_name=`echo $name | LC_ALL=C tr '[a-z]' '[A-Z]'`
     eval "define_value=\"$value\""
     echo "#define CONFIG_QEMU_$define_name \"$define_value\""
     # save for the next definitions
@@ -48,7 +48,7 @@ case $line in
     ;;
  ARCH=*) # configuration
     arch=${line#*=}
-    arch_name=`echo $arch | tr '[:lower:]' '[:upper:]'`
+    arch_name=`echo $arch | LC_ALL=C tr '[a-z]' '[A-Z]'`
     echo "#define HOST_$arch_name 1"
     ;;
  HOST_USB=*)
@@ -73,7 +73,7 @@ case $line in
  TARGET_BASE_ARCH=*) # configuration
     target_base_arch=${line#*=}
     if [ "$target_base_arch" != "$target_arch" ]; then
-      base_arch_name=`echo $target_base_arch | tr '[:lower:]' '[:upper:]'`
+      base_arch_name=`echo $target_base_arch | LC_ALL=C tr '[a-z]' '[A-Z]'`
       echo "#define TARGET_$base_arch_name 1"
     fi
     ;;