summaryrefslogtreecommitdiff
path: root/package
diff options
context:
space:
mode:
Diffstat (limited to 'package')
-rw-r--r--package/Makefile.package.in16
1 files changed, 15 insertions, 1 deletions
diff --git a/package/Makefile.package.in b/package/Makefile.package.in
index e98fda85d..c2f86c7be 100644
--- a/package/Makefile.package.in
+++ b/package/Makefile.package.in
@@ -24,7 +24,21 @@
# UPPERCASE Macro -- transform its argument to uppercase and replace dots and
# hyphens to underscores
-UPPERCASE = $(shell echo $(1) | tr "a-z.-" "A-Z__")
+
+# Heavily inspired by the up macro from gmsl (http://gmsl.sf.net)
+# This is approx 5 times faster than forking a shell and tr, and
+# as this macro is used a lot it matters
+# This works by creating translation character pairs (E.G. a:A b:B)
+# and then looping though all of them running $(subst from,to,text)
+[FROM] := a b c d e f g h i j k l m n o p q r s t u v w x y z . -
+[TO] := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ _
+
+UPPERCASE = $(strip $(eval __tmp := $1) \
+ $(foreach c, $(join $(addsuffix :,$([FROM])),$([TO])), \
+ $(eval __tmp := \
+ $(subst $(word 1,$(subst :, ,$c)),$(word 2,$(subst :, ,$c)),\
+ $(__tmp)))) \
+ $(__tmp))
# Define extrators for different archive suffixes
INFLATE.bz2 = $(BZCAT)