Import rbenv changes at 7e0e85bdda

src/configure

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+set -e
+
+src_dir="${0%/*}"
+
+if [ -z "$CC" ]; then
+  if type -p gcc >/dev/null; then
+    CC=gcc
+  else
+    echo "warning: gcc not found; using CC=cc" >&2
+    CC=cc
+  fi
+fi
+
+if ! type -p "$CC" >/dev/null; then
+  echo "aborted: compiler not found: $CC" >&2
+  exit 1
+fi
+
+case "$(uname -s)" in
+Darwin* )
+  host_os="darwin$(uname -r)"
+  ;;
+OpenBSD* )
+  host_os="openbsd$(uname -r)"
+  ;;
+* )
+  host_os="linux-gnu"
+esac
+
+eval "$("$src_dir"/shobj-conf -C "$CC" -o "$host_os")"
+
+sed "
+  s,@CC@,${CC},
+  s,@CFLAGS@,${CFLAGS},
+  s,@LOCAL_CFLAGS@,${LOCAL_CFLAGS},
+  s,@DEFS@,${DEFS},
+  s,@LOCAL_DEFS@,${LOCAL_DEFS},
+  s,@SHOBJ_CC@,${SHOBJ_CC},
+  s,@SHOBJ_CFLAGS@,${SHOBJ_CFLAGS},
+  s,@SHOBJ_LD@,${SHOBJ_LD},
+  s,@SHOBJ_LDFLAGS@,${SHOBJ_LDFLAGS//,/\,},
+  s,@SHOBJ_XLDFLAGS@,${SHOBJ_XLDFLAGS//,/\,},
+  s,@SHOBJ_LIBS@,${SHOBJ_LIBS},
+  s,@SHOBJ_STATUS@,${SHOBJ_STATUS},
+" "$src_dir"/Makefile.in > "$src_dir"/Makefile