[igt-dev] [PATCH i-g-t v4 3/8] meson.build: place gtk-doc dependencies check at the right place

[Mauro Carvalho Chehab <mauro.chehab@linux.intel.com>]

From: Mauro Carvalho Chehab <mchehab@kernel.org>

The requirement for having gtk-doc is specific to
docs/reference/igt-gpu-tools.

So, move the code to be there. This lets build testplan docs
without needing gtk-doc (nor having the IGT executables).

It should be noticed that testplan indirectly depends on
build_tests, for one reason only: the tests subdir is only
included if build_tests is true. Without it, the xe_test_config
variable will be undefined, as it is declared inside a tests
subdir.

So, we need to add an extra test for the testplan subdir,
to ensure that the variable is declared.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
---
 docs/meson.build           |  5 ++++-
 docs/reference/meson.build | 12 +++++++++++-
 meson.build                | 11 +++--------
 3 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/docs/meson.build b/docs/meson.build
index 01edf64f04a8..9bfec8fee80b 100644
--- a/docs/meson.build
+++ b/docs/meson.build
@@ -1,2 +1,5 @@
 subdir('reference')
-subdir('testplan')
+
+if xe_test_config != ''
+	subdir('testplan')
+endif
diff --git a/docs/reference/meson.build b/docs/reference/meson.build
index 85a8aa47f920..d0f38cd33892 100644
--- a/docs/reference/meson.build
+++ b/docs/reference/meson.build
@@ -1 +1,11 @@
-subdir('igt-gpu-tools')
+if build_docs.enabled()
+	gtk_doc = dependency('gtk-doc', required : true)
+
+	if build_tests and gtk_doc.found()
+		subdir('igt-gpu-tools')
+	else
+		error('Documentation requires building tests')
+	endif
+endif
+
+build_info += 'Build reference documentation: @0@'.format(build_docs.enabled())
diff --git a/meson.build b/meson.build
index cbb7ead7d9cd..b896283e3244 100644
--- a/meson.build
+++ b/meson.build
@@ -320,6 +320,8 @@ endif
 subdir('lib')
 if build_tests
 	subdir('tests')
+else
+	xe_test_config = ''
 endif
 build_info += 'Build tests: @0@'.format(build_tests)
 
@@ -332,14 +334,7 @@ endif
 subdir('overlay')
 subdir('man')
 subdir('scripts')
-
-gtk_doc = dependency('gtk-doc', required : build_docs)
-if build_tests and gtk_doc.found()
-	subdir('docs')
-elif build_docs.enabled()
-	error('Documentation requires building tests')
-endif
-build_info += 'Build documentation: @0@'.format(build_tests and gtk_doc.found())
+subdir('docs')
 
 message('Build options')
 message('=============')
-- 
2.39.2