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-rw-r--r--tools/CoqMakefile.in4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/CoqMakefile.in b/tools/CoqMakefile.in
index 9f891afe5..5c6e2b4cb 100644
--- a/tools/CoqMakefile.in
+++ b/tools/CoqMakefile.in
@@ -199,8 +199,8 @@ else
TIMING_ARG=
endif
-# Retro compatibility (DESTDIR is standard on Unix, DESTROOT is not)
-ifneq "$(DSTROOT)" ""
+# Retro compatibility (DESTDIR is standard on Unix, DSTROOT is not)
+ifdef DSTROOT
DESTDIR := $(DSTROOT)
endif