meson/megadriver: support various lib suffixes

Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32333>
(cherry picked from commit ffd02b8ad8)

Conflicts:
	bin/install_megadrivers.py

.pick_status.json

@@ -2714,7 +2714,7 @@
         "description": "meson/megadriver: support various lib suffixes",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": null,
         "notes": null

bin/install_megadrivers.py

@@ -42,8 +42,13 @@ def main():
     parser.add_argument('libdir')
     parser.add_argument('drivers', nargs='+')
     parser.add_argument('--megadriver_libdir')
+    parser.add_argument('--libname-suffix', required=True)
     args = parser.parse_args()
 
+    # Not neccesarily at the end, there might be a version suffix, but let's
+    # make sure that the same suffix is in the megadriver lib name.
+    assert '.' + args.libname_suffix in args.megadriver
+
     to = resolve_libdir(args.libdir)
     if args.megadriver_libdir:
         md_to = resolve_libdir(args.megadriver_libdir)
@@ -74,7 +79,7 @@ def main():
             os.chdir(to)
 
             name, ext = os.path.splitext(driver)
-            while ext != '.so':
+            while ext != '.' + args.libname_suffix:
                 if os.path.lexists(name):
                     os.unlink(name)
                 os.symlink(driver, name)
@@ -82,9 +87,9 @@ def main():
         finally:
             os.chdir(ret)
 
-    # Remove meson-created .so symlinks
+    # Remove meson-created symlinks
     name, ext = os.path.splitext(master)
-    while ext != '.so':
+    while ext != '.' + args.libname_suffix:
         if os.path.lexists(name):
             os.unlink(name)
         name, ext = os.path.splitext(name)

bin/meson.build

@@ -13,4 +13,5 @@ symbols_check = find_program('symbols-check.py')
 install_megadrivers_py = find_program('install_megadrivers.py')
 install_megadrivers = [
   install_megadrivers_py.full_path(),
+  '--libname-suffix', libname_suffix,
 ]

meson.build

@@ -20,6 +20,11 @@ project(
 if host_machine.system() == 'darwin'
   add_languages('objc', native : false)
   add_project_arguments('-fobjc-arc', language : 'objc')
+  libname_suffix = 'dylib'
+elif host_machine.system() == 'windows'
+  libname_suffix = 'dll'
+else
+  libname_suffix = 'so'
 endif
 
 cc = meson.get_compiler('c')

src/gallium/targets/dri/meson.build

@@ -67,7 +67,7 @@ libgallium_dri = shared_library(
     driver_asahi, driver_crocus
   ],
   install : true,
-  name_suffix : 'so',
+  name_suffix : libname_suffix,
 )
 
 if with_gallium_va or with_gallium_vdpau

src/gallium/targets/dril/meson.build

@@ -59,7 +59,7 @@ dril_dri = shared_library(
   # Will be deleted during installation, see install_megadrivers.py
   install : true,
   install_dir : dri_drivers_path,
-  name_suffix : 'so',
+  name_suffix : libname_suffix,
 )
 
 foreach d : [[with_gallium_kmsro, [

src/gallium/targets/va/meson.build

@@ -84,7 +84,7 @@ else
     link_depends : va_link_depends,
     install : true,
     install_dir : va_drivers_path,
-    name_suffix : 'so',
+    name_suffix : libname_suffix,
   )
 
   foreach d : [[with_gallium_r600, 'r600'],

src/gallium/targets/vdpau/meson.build

@@ -47,7 +47,7 @@ libvdpau_gallium = shared_library(
   soversion : '@0@.@1@.0'.format(VDPAU_MAJOR, VDPAU_MINOR),
   install : true,
   install_dir : vdpau_drivers_path,
-  name_suffix : 'so',
+  name_suffix : libname_suffix,
 )
 foreach d : [[with_gallium_r600, 'r600'],
              [with_gallium_radeonsi, 'radeonsi'],