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-rwxr-xr-xtools/gen-sysdepsh.sh2
-rwxr-xr-xtools/gen-types.sh4
2 files changed, 3 insertions, 3 deletions
diff --git a/tools/gen-sysdepsh.sh b/tools/gen-sysdepsh.sh
index 8373f8f..c699feb 100755
--- a/tools/gen-sysdepsh.sh
+++ b/tools/gen-sysdepsh.sh
@@ -12,7 +12,7 @@ cat <<EOF
 EOF
 
 while read k v ; do
-  k=$(echo "${k%%:}" | tr a-z A-Z)
+  k=$(echo "${k%%:}" | tr '[:lower:]' '[:upper:]')
   if test ${k} != ${k##SIGNED} ; then
     echo "#undef SKALIBS_HASUN$k"
     echo "#undef SKALIBS_HAS$k"
diff --git a/tools/gen-types.sh b/tools/gen-types.sh
index 3d5f298..6e3bad0 100755
--- a/tools/gen-types.sh
+++ b/tools/gen-types.sh
@@ -10,7 +10,7 @@ getbits() {
 cat < src/headers/types-header
 
 for i in short int long ; do
-  I=$(echo "$i" | tr a-z A-Z)
+  I=$(echo "$i" | tr '[:lower:]' '[:upper:]')
   bits=$(getbits "$sysdeps" u$i)
   tools/gen-types-internal.sh u$i U$I $bits < src/headers/unsigned-template
   tools/gen-types-internal.sh $i $I $bits < src/headers/signed-template
@@ -18,7 +18,7 @@ done
 
 for i ; do
   un=un
-  I=$(echo "$i" | tr a-z A-Z)
+  I=$(echo "$i" | tr '[:lower:]' '[:upper:]')
   bits=$(getbits "$sysdeps" $i)
   if grep -qF "signed$i: yes" < "$sysdeps" ; then
     un=