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-rwxr-xr-xbuild5
1 files changed, 3 insertions, 2 deletions
diff --git a/build b/build
index 46e4b270..5a3cae9e 100755
--- a/build
+++ b/build
@@ -1,6 +1,6 @@
 #!/bin/sh
-# returns 0 on successful build or nothing to build
-# non-zero exit status only on error during building
+# For details on the basic form of this script, see https://notabug.org/akkartik/basic-build.
+
 set -e  # stop immediately on error
 
 # [0-9]*.cc -> mu.cc -> .build/*.cc -> .build/*.o -> .build/mu_bin
@@ -140,6 +140,7 @@ cat $MU_LAYERS  |update core.mu
 exit 0
 
 # scenarios considered:
+#   0 status when nothing needs updating
 #   no output when nothing needs updating
 #     no output for mu.cc when .mu files modified
 #     touch mu.cc but don't modify it; no output on second build