From 6cf0a115451d6d5ead94860f0731040dc2293db0 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Mon, 26 Nov 2012 14:14:29 -0600
Subject: Cleanup i18n support (#ifdefectomy, move global init to process
 launch). Teach make.sh to emit "#define FLAG_x 0" for options inside disabled
 USE macros so we can unconditionally refer to them.

---
 scripts/make.sh | 32 +++++++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 7 deletions(-)

(limited to 'scripts/make.sh')

diff --git a/scripts/make.sh b/scripts/make.sh
index f9fa0a40..921d1994 100755
--- a/scripts/make.sh
+++ b/scripts/make.sh
@@ -54,11 +54,27 @@ sed -n -e 's/^USE_[A-Z0-9_]*(/&/p' toys/*/*.c \
 	| sed 's/\(.*TOY(\)\([^,]*\),\(.*\)/\2 \1\2,\3/' | sort -k 1,1 \
 	| sed 's/[^ ]* //'  >> generated/newtoys.h
 
+# Extract list of command letters from processed header file
+
+function getflags()
+{
+  sed -n -e "s/.*TOY($1"',[ \t]*"\([^"]*\)"[ \t]*,.*)/\1/' \
+         -e 't keep;d;:keep' -e 's/^[<>=][0-9]//' -e 's/[?&^]//' \
+         -e 't keep' -e 's/[><=][0-9][0-9]*//g' -e 's/+.//g' \
+         -e 's/([^)]*)//g' -e 's/\[[^]]*\]//g' -e 's/[-?^:&#|@*]//g' -e 'p'
+}
+
 # Extract global structure definitions and flag definitions from toys/*/*.c
 
 function getglobals()
 {
+  # Run newtoys.h through the compiler's preprocessor to resolve USE macros
+  # against current config.
   NEWTOYS="$(cat generated/config.h generated/newtoys.h | gcc -E - | sed 's/" *"//g')"
+
+  # Grab allyesconfig for comparison
+  ALLTOYS="$((sed '/USE_.*([^)]*)$/s/$/ __VA_ARGS__/' generated/config.h && cat generated/newtoys.h) | gcc -E - | sed 's/" *"//g')"
+
   for i in toys/*/*.c
   do
     NAME="$(echo $i | sed 's@.*/\(.*\)\.c@\1@')"
@@ -68,13 +84,9 @@ function getglobals()
         -e 's/^GLOBALS(/struct '"$NAME"'_data {/' \
         -e 's/^)/};/' -e 'p' $i
 
-    # And get flag definitions
-    FLAGS="$(echo "$NEWTOYS" | sed -n \
-                 -e "s/.*TOY($NAME"',[ \t]*"\([^"]*\)"[ \t]*,.*)/\1/' \
-                 -e 't keep;d;:keep' -e 's/^[<>=][0-9]//' -e 's/[?&^]//' \
-                 -e 't keep' -e 's/[><=][0-9][0-9]*//g' -e 's/+.//g' \
-                 -e 's/([^)]*)//g' -e 's/\[[^]]*\]//g' -e 's/[-?^:&#|@*]//g' \
-                 -e 'p')"
+    FLAGS="$(echo "$NEWTOYS" | getflags "$NAME")"
+    ZFLAGS="$(echo "$ALLTOYS" | getflags "$NAME" | sed 's/[-'"$FLAGS"']//g')"
+
     echo "#ifdef FOR_${NAME}"
     X=0
     while [ $X -lt ${#FLAGS} ]
@@ -83,6 +95,12 @@ function getglobals()
       X=$(($X+1))
       echo "(1<<$((${#FLAGS}-$X)))"
     done
+    X=0
+    while [ $X -lt ${#ZFLAGS} ]
+    do
+      echo "#define FLAG_${ZFLAGS:$X:1} 0"
+      X=$(($X+1))
+    done
     echo "#define TT this.${NAME}"
     echo "#endif"
   done
-- 
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