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meson: Allow source location to be configurable
Hardcoding a build source path into a binary when cross compiling isn't
appropriate and breaks build reproducibility. Allow the srcdir to be
specified by an optional configuration option to meson.
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
Upstream-Status: Submitted [https://lists.freedesktop.org/archives/igt-dev/2021-February/029443.html]
Index: git/lib/meson.build
===================================================================
--- git.orig/lib/meson.build
+++ git/lib/meson.build
@@ -122,7 +122,11 @@ if chamelium.found()
lib_sources += 'igt_chamelium_stream.c'
endif
-srcdir = join_paths(meson.source_root(), 'tests')
+if get_option('srcdir') != ''
+ srcdir = join_paths(get_option('srcdir'), 'tests')
+else
+ srcdir = join_paths(meson.source_root(), 'tests')
+endif
lib_version = vcs_tag(input : 'version.h.in', output : 'version.h',
fallback : 'NO-GIT',
Index: git/meson_options.txt
===================================================================
--- git.orig/meson_options.txt
+++ git/meson_options.txt
@@ -50,3 +50,7 @@ option('use_rpath',
type : 'boolean',
value : false,
description : 'Set runpath on installed executables for libigt.so')
+
+option('srcdir',
+ type : 'string',
+ description : 'Path to source code to be compiled into binaries (optional)')
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