To build docs, gcc is not needed. Also, Kernel can be built
nowadays with clang. So, drop it.

On the other hand, which is needed. Add a system dependency
for it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/sphinx-pre-install | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index 7dfe5c2a6cc2..fc9dc45054d7 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -1476,7 +1476,7 @@ class SphinxDependencyChecker(MissingCheckers):
         self.check_perl_module("Pod::Usage", DepManager.SYSTEM_MANDATORY)
 
         self.check_program("make", DepManager.SYSTEM_MANDATORY)
-        self.check_program("gcc", DepManager.SYSTEM_MANDATORY)
+        self.check_program("which", DepManager.SYSTEM_MANDATORY)
 
         self.check_program("dot", DepManager.SYSTEM_OPTIONAL)
         self.check_program("convert", DepManager.SYSTEM_OPTIONAL)
-- 
2.50.1