Merge ~vicamo/ubuntu/+source/v4l2loopback/+git/v4l2loopback:bug-2007333/skip-passing-CC-when-empty/lunar into ubuntu/+source/v4l2loopback:ubuntu/devel

[You-Sheng Yang]

* Skip passing CC when empty (LP: #2007333)

inline dkms build inside the linux/lunar kernel package is invoked with an empty CC.

Unmerged commits

1e3e189... by You-Sheng Yang on 2023-02-15

Bug 2007333: skip passing CC when empty

BugLink: https://bugs.launchpad.net/bugs/2007333
Signed-off-by: You-Sheng Yang (vicamo) <email address hidden>

diff --git a/debian/changelog b/debian/changelog
index 61bd4df..bb0e5c7 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+v4l2loopback (0.12.7-2ubuntu3) lunar; urgency=medium
+
+  * Skip passing CC when empty (LP: #2007333)
+
+ -- You-Sheng Yang <[e-mail]>  Wed, 15 Feb 2023 12:16:13 +0800
+
 v4l2loopback (0.12.7-2ubuntu2) kinetic; urgency=medium
 
   * Preserve CC setting when invoking sub-make, to ensure module can be
diff --git a/debian/patches/exact-cc.patch b/debian/patches/exact-cc.patch
index e272f8d..0333f74 100644
--- a/debian/patches/exact-cc.patch
+++ b/debian/patches/exact-cc.patch
@@ -13,12 +13,12 @@ Bug-Ubuntu: https://bugs.launchpad.net/bugs/1991664
  v4l2loopback.ko:
  	@echo "Building v4l2-loopback driver..."
 -	$(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules
-+	$(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules CC=$(CC)
++	$(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules $(if $(CC),CC=$(CC))
  
  install-all: install install-utils install-man
  install:
 -	$(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules_install
-+	$(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules_install CC=$(CC)
++	$(MAKE) -C $(KERNEL_DIR) M=$(PWD) modules_install $(if $(CC),CC=$(CC))
  	@echo ""
  	@echo "SUCCESS (if you got 'SSL errors' above, you can safely ignore them)"
  	@echo ""