meson: support multiple cross configuration files

For historical reasons Meson supports only a single cross configuration file but
multiple native configuration files.  Add support for multiple cross files, so
that recipes such as glib can use the toolchain cross file and extend it with a
recipe-specific cross file containing values needed to build.

(From OE-Core rev: 3d97cddeec8635988e414e6854d850cea20bcb36)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 6 insertions, 12 deletions

diff --git a/meta/recipes-devtools/meson/meson/cross-libdir.patch b/meta/recipes-devtools/meson/meson/cross-libdir.patch
index 2bd4fb3f9e..7395fdbdaa 100644
--- a/meta/recipes-devtools/meson/meson/cross-libdir.patch
+++ b/meta/recipes-devtools/meson/meson/cross-libdir.patch
@@ -7,17 +7,11 @@ Date: Thu, 27 Dec 2018 23:43:35 +0200
 Subject: [PATCH] Default libdir is "lib" when cross compiling. Closes #2535.
 
 ---
- docs/markdown/snippets/crosslib.md |  7 +++++++
- mesonbuild/coredata.py             |  8 ++++++++
- run_unittests.py                   | 13 +++++++++++++
- 3 files changed, 28 insertions(+)
- create mode 100644 docs/markdown/snippets/crosslib.md
-
 diff --git a/mesonbuild/coredata.py b/mesonbuild/coredata.py
-index d70c23038c..4e2f3e008c 100644
+index ff810683..9ee23a69 100644
 --- a/mesonbuild/coredata.py
 +++ b/mesonbuild/coredata.py
-@@ -299,6 +299,7 @@ def __init__(self, options):
+@@ -298,6 +298,7 @@ class CoreData:
          # Only to print a warning if it changes between Meson invocations.
          self.pkgconf_envvar = os.environ.get('PKG_CONFIG_PATH', '')
          self.config_files = self.__load_config_files(options.native_file)
@@ -25,15 +19,15 @@ index d70c23038c..4e2f3e008c 100644
  
      @staticmethod
      def __load_config_files(filenames):
-@@ -348,6 +349,13 @@ def __load_cross_file(filename):
- 
-         raise MesonException('Cannot find specified cross file: ' + filename)
+@@ -309,6 +310,13 @@ class CoreData:
+                      for f in filenames]
+         return filenames
  
 +    def libdir_cross_fixup(self):
 +        # By default set libdir to "lib" when cross compiling since
 +        # getting the "system default" is always wrong on multiarch
 +        # platforms as it gets a value like lib/x86_64-linux-gnu.
-+        if self.cross_file is not None:
++        if self.cross_files:
 +            self.builtins['libdir'].value = 'lib'
 +
      def sanitize_prefix(self, prefix):