[DTrace-devel] [PATCH v3 5/9] build: only touch .dir.stamp if it doesn't already exist

[Nick Alcock]

This stops its date being continuously updated, forcing configure
retests all the time.  Now it serves its intended purpose of causing
configure retests only if .config was deleted (as is done by e.g.
make clean).

Signed-off-by: Nick Alcock <nick.alcock at oracle.com>
---
 Makeconfig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Makeconfig b/Makeconfig
index cbde1d45421f..cb6f16e64e98 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -132,8 +132,10 @@ $(CONFIG_MK): $(objdir)/.config/config.$(1).mk
 endef
 
 $(objdir)/.config/.dir.stamp:
-	mkdir -p $(objdir)/.config
-	touch $(objdir)/.config/.dir.stamp
+	if [[ ! -f $(objdir)/.config/.dir.stamp ]]; then \
+	    mkdir -p $(objdir)/.config; \
+	    touch $(objdir)/.config/.dir.stamp; \
+	fi
 
 $(CONFIG_H):
 	echo '/* This file is automatically generated. */' > $(objdir)/config.h
-- 
2.43.0.272.gce700b77fd