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-rw-r--r--Makefile.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile.in b/Makefile.in
index bd5ab6a120..cf533dac50 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -589,7 +589,7 @@ mjit_config.h:
echo '#define RUBY_MJIT_CONFIG_H 1'; \
echo; \
sep=; \
- quote MJIT_BUILD_DIR "$(dir $(realpath $(firstword $(MAKEFILE_LIST))))"; \
+ quote MJIT_BUILD_DIR "`$(CHDIR) . && pwd`"; \
quote MJIT_MIN_HEADER_NAME "/$(MJIT_HEADER_INSTALL_DIR)/$(MJIT_MIN_HEADER_NAME)"; \
sep=,; \
quote "MJIT_CC_COMMON " $(MJIT_CC); \