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-rw-r--r--common.mk11
1 files changed, 11 insertions, 0 deletions
diff --git a/common.mk b/common.mk
index bf27541c57..ed8a8a60fc 100644
--- a/common.mk
+++ b/common.mk
@@ -797,3 +797,14 @@ dist: $(PROGRAM)
up:
@$(VCS) up "$(srcdir)" |\
sed '-e$${' -eh "-es/[^0-9]//g" "-es/^/#define RUBY_REVISION /" "-ew$(srcdir)/revision.h" -eg "-e}"
+
+help:
+ @echo ' Makefile of Ruby'
+ @echo
+ @echo 'targets:'
+ @echo ' all: compile ruby and extensions'
+ @echo ' check: equals make test test-all'
+ @echo ' test: ruby core tests'
+ @echo ' test-all: all ruby tests'
+ @echo ' install: install all ruby distributions'
+ @echo ' install-nodoc: install without rdoc'