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-rw-r--r--share/mk/sys.mk6
1 files changed, 6 insertions, 0 deletions
diff --git a/share/mk/sys.mk b/share/mk/sys.mk
index 51ec2aa..e08f3e5 100644
--- a/share/mk/sys.mk
+++ b/share/mk/sys.mk
@@ -57,6 +57,12 @@ ECHODIR ?= true
.endif
.endif
+.if !empty(.MAKEFLAGS:M-n) && ${.MAKEFLAGS:M-n} == "-n"
+_+_ ?=
+.else
+_+_ ?= +
+.endif
+
.if defined(%POSIX)
FC ?= fort77
FFLAGS ?= -O 1
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