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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index 34fe037d2c..62c55774a5 100644
--- a/configure.in
+++ b/configure.in
@@ -64,7 +64,7 @@ GNU_LD=$rb_cv_prog_gnu_ld
AC_SUBST(GNU_LD)])
unset GREP_OPTIONS
-rb_version=`grep RUBY_VERSION $srcdir/version.h`
+rb_version=`grep '^#define RUBY_VERSION ' $srcdir/version.h`
MAJOR=`expr "$rb_version" : '#define RUBY_VERSION "\([0-9][0-9]*\)\.[0-9][0-9]*\.[0-9][0-9]*"'`
MINOR=`expr "$rb_version" : '#define RUBY_VERSION "[0-9][0-9]*\.\([0-9][0-9]*\)\.[0-9][0-9]*"'`
TEENY=`expr "$rb_version" : '#define RUBY_VERSION "[0-9][0-9]*\.[0-9][0-9]*\.\([0-9][0-9]*\)"'`