Use proper name

Makefile

@@ -8,7 +8,7 @@ all: options build
 options:
 	@echo ffoo build options:
 	@echo "VERSION  = ${VERSION}"
-	@echo "STAGE    = ${STAGE}"
+	@echo "PRERELEASE = ${PRERELEASE}"
 	@echo "PREFIX   = ${PREFIX}"
 
 build:

config.mk

@@ -1,5 +1,5 @@
 VERSION = 0.6.2
-STAGE = devel
+PRERELEASE = devel
 CODENAME = StopIteration
 RELSRC = master
 RELDST = last

mkit/include/build.sh

@@ -128,7 +128,7 @@ get_version() {
     #
     #  1. use VERSION (from config.mk)
     #  2. if we are in git, override the version with last tag
-    #  3. if set, add STAGE (from config.mk) as pre-release ID
+    #  3. if set, add PRERELEASE (from config.mk) as pre-release ID
     #     (afer dash)
     #  4. if we are at a later commit than the last tag, add branch
     #     name and commit sha1 to build metadata (after plus sign)
@@ -140,12 +140,12 @@ get_version() {
     # Examples:
     #
     #     myprog v1.0.7                         # all clear
-    #     myprog v1.0.7-alpha                   # STAGE="alpha"
+    #     myprog v1.0.7-alpha                   # PRERELEASE="alpha"
     #     myprog v1.0.7-alpha+g1aef811.master   # ^^ + some commits after
     #     myprog v1.0.7-alpha+gf14fc4f.api2     # ^^ + on a feature branch
     #     myprog v1.0.7-alpha+gf14fc4f.api2.dirty  # ^^ + tree edited
     #     myprog v1.0.7-alpha+dirty             # tag OK but tree edited
-    #     myprog v1.0.7+dirty                   # ^^ but no stage
+    #     myprog v1.0.7+dirty                   # ^^ but no pre-release id
     #
     # Note that versions with "dirty" should be perceived as kind of
     # dangerous outside developer's own machine.  Versions with sha1 are
@@ -166,8 +166,8 @@ get_version() {
     #         other than a tagged commit.
     #
     local version=$VERSION
-    local stage=$STAGE
-    grep ":" <<<"$stage" && warn "colon in STAGE may corrupt version data: $stage"
+    local prerl=$PRERELEASE
+    grep ":" <<<"$prerl" && warn "colon in PRERELEASE may corrupt version data: $prerl"
     if git rev-parse HEAD >&/dev/null;
     then    # we are in git repo... so we can get smart
         local lasttag=$(git tag | grep ^v | sort -V | tail -n1)
@@ -183,15 +183,15 @@ get_version() {
         fi
         version=${lasttag:1}
         local suffix=""
-        case $stage:$commit:$dirty in
+        case $prerl:$commit:$dirty in
             ::)        suffix=""                       ;;
             ::dirty)   suffix="+$dirty"                ;;
             :*:)       suffix="+$commit"               ;;
             :*:dirty)  suffix="+$commit"               ;;
-            *::)       suffix="-$stage"                ;;
-            *::dirty)  suffix="-$stage+$dirty"         ;;
-            *:*:)      suffix="-$stage+$commit"        ;;
-            *:*:dirty) suffix="-$stage+$commit.$dirty" ;;
+            *::)       suffix="-$prerl"                ;;
+            *::dirty)  suffix="-$prerl+$dirty"         ;;
+            *:*:)      suffix="-$prerl+$commit"        ;;
+            *:*:dirty) suffix="-$prerl+$commit.$dirty" ;;
         esac
         version=$version$suffix
     fi