[PATCH v1] Documentation: specify Doxygen OUTPUT_DIRECTORY explicitly

[Barnabás Pőcze]

Currently, doxygen is run by ninja in the top-level build directory,
therefore the "Documentation" folder is always created there. However,
when libcamera is built as a subproject, it should not touch the
top-level build directory because it can cause conflicts and because
the documentation won't be created where meson thinks it will be, so
the "doxygen" target will always be dirty and installation will fail.

Signed-off-by: Barnabás Pőcze <pobrn at protonmail.com>
---
 Documentation/Doxyfile.in | 2 +-
 Documentation/meson.build | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/Doxyfile.in b/Documentation/Doxyfile.in
index e4f0cd42..1447abdb 100644
--- a/Documentation/Doxyfile.in
+++ b/Documentation/Doxyfile.in
@@ -5,7 +5,7 @@ PROJECT_NAME           = "libcamera"
 PROJECT_NUMBER         = "@VERSION@"
 PROJECT_BRIEF          = "Supporting cameras in Linux since 2019"

-OUTPUT_DIRECTORY       = Documentation
+OUTPUT_DIRECTORY       = "@OUTPUT_DIR@"

 STRIP_FROM_PATH        = "@TOP_SRCDIR@"

diff --git a/Documentation/meson.build b/Documentation/meson.build
index 7695bcb1..18646156 100644
--- a/Documentation/meson.build
+++ b/Documentation/meson.build
@@ -14,6 +14,7 @@ if doxygen.found() and dot.found()
     cdata.set('VERSION', 'v at 0@'.format(libcamera_git_version))
     cdata.set('TOP_SRCDIR', meson.project_source_root())
     cdata.set('TOP_BUILDDIR', meson.project_build_root())
+    cdata.set('OUTPUT_DIR', meson.current_build_dir())

     doxyfile = configure_file(input : 'Doxyfile.in',
                               output : 'Doxyfile',
--
2.39.0