meson: Substitute the Python shebang

Just like we do with Autotools. This allows building glib-mkenums and
glib-genmarshal on older platforms that only have Python 2.

3 files changed, 4 insertions, 2 deletions

diff --git a/gobject/glib-genmarshal.in b/gobject/glib-genmarshal.in
index 10e0e3351..9a39a53e8 100755
--- a/gobject/glib-genmarshal.in
+++ b/gobject/glib-genmarshal.in
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!@PYTHON@
 
 # pylint: disable=too-many-lines, missing-docstring, invalid-name
 
diff --git a/gobject/glib-mkenums.in b/gobject/glib-mkenums.in
index 386faf1d7..6aaef5817 100755
--- a/gobject/glib-mkenums.in
+++ b/gobject/glib-mkenums.in
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!@PYTHON@
 
 # If the code below looks horrible and unpythonic, do not panic.
 #
diff --git a/gobject/meson.build b/gobject/meson.build
index 0953284ad..ed5ca6620 100644
--- a/gobject/meson.build
+++ b/gobject/meson.build
@@ -68,6 +68,7 @@ libgobject_dep = declare_dependency(link_with : libgobject,
 
 glib_mkenums_conf = configuration_data()
 glib_mkenums_conf.set('GLIB_VERSION', glib_version)
+glib_mkenums_conf.set('PYTHON', python.path())
 
 # FIXME: Set permissions
 glib_mkenums = configure_file(input : 'glib-mkenums.in',
@@ -87,6 +88,7 @@ gmarshal_strings = custom_target('gmarshal.strings',
 
 glib_genmarshal_conf = configuration_data()
 glib_genmarshal_conf.set('VERSION', glib_version)
+glib_genmarshal_conf.set('PYTHON', python.path())
 
 glib_genmarshal = configure_file(input : 'glib-genmarshal.in',
   output : 'glib-genmarshal',