plugins: fix win plugin tests on cross compile

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1972

Cross compile gcc is more picky about argument order than msys. Changed
the meson command to take the (now renamed) libqemu_plugin_api.a as a
lib, rather than an object. This puts it in the right place on both
native and cross compile gcc commands

Reenable plugins on crossbuilds

Signed-off-by: Greg Manning <gmanning@rapitasystems.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20231109124326.21106-2-gmanning@rapitasystems.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231120150833.2552739-5-alex.bennee@linaro.org>

.gitlab-ci.d/crossbuilds.yml

@@ -165,7 +165,7 @@ cross-win32-system:
     job: win32-fedora-cross-container
   variables:
     IMAGE: fedora-win32-cross
-    EXTRA_CONFIGURE_OPTS: --enable-fdt=internal --disable-plugins
+    EXTRA_CONFIGURE_OPTS: --enable-fdt=internal
     CROSS_SKIP_TARGETS: alpha-softmmu avr-softmmu hppa-softmmu m68k-softmmu
                         microblazeel-softmmu mips64el-softmmu nios2-softmmu
   artifacts:

contrib/plugins/Makefile

@@ -49,7 +49,7 @@ all: $(SONAMES)
 	$(CC) $(CFLAGS) $(PLUGIN_CFLAGS) -c -o $@ $<
 
 ifeq ($(CONFIG_WIN32),y)
-lib%$(SO_SUFFIX): %.o win32_linker.o ../../plugins/qemu_plugin_api.lib
+lib%$(SO_SUFFIX): %.o win32_linker.o ../../plugins/libqemu_plugin_api.a
 	$(CC) -shared -o $@ $^ $(LDLIBS)
 else ifeq ($(CONFIG_DARWIN),y)
 lib%$(SO_SUFFIX): %.o

plugins/meson.build

@@ -28,7 +28,7 @@ if get_option('plugins')
     # then use dlltool to assemble a delaylib.
     win32_qemu_plugin_api_lib = configure_file(
       input: win32_plugin_def,
-      output: 'qemu_plugin_api.lib',
+      output: 'libqemu_plugin_api.a',
       command: [dlltool, '--input-def', '@INPUT@',
                 '--output-delaylib', '@OUTPUT@', '--dllname', 'qemu.exe']
     )

tests/plugin/meson.build

@@ -4,7 +4,8 @@ if get_option('plugins')
     if targetos == 'windows'
       t += shared_module(i, files(i + '.c') + '../../contrib/plugins/win32_linker.c',
                         include_directories: '../../include/qemu',
-                        objects: [win32_qemu_plugin_api_lib],
+                        link_depends: [win32_qemu_plugin_api_lib],
+                        link_args: ['-Lplugins', '-lqemu_plugin_api'],
                         dependencies: glib)
 
     else