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meson: move libmpathpersist test

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This is the first compiler/linker test that has been moved to Meson.
Add more section headings to keep things clearer.

This also fixes static linking to libmpathpersist, which has a
dependency on libmultipath but no pkg-config file to describe it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2020-09-16 18:07:29 +02:00
parent f01496a314
commit 6ec0e15d95
3 changed files with 80 additions and 80 deletions
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81
meson.build
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@ -86,6 +86,14 @@ if 'SPARSE_CFLAGS' in config_host
'compile_commands.json'])
endif
###########################################
# Target-specific checks and dependencies #
###########################################
if targetos != 'linux' and get_option('mpath').enabled()
error('Multipath is supported only on Linux')
endif
m = cc.find_library('m', required: false)
util = cc.find_library('util', required: false)
winmm = []
@ -117,6 +125,11 @@ elif targetos == 'haiku'
cc.find_library('network'),
cc.find_library('bsd')]
endif
################
# Dependencies #
################
# The path to glib.h is added to all compilation commands. This was
# grandfathered in from the QEMU Makefiles.
add_project_arguments(config_host['GLIB_CFLAGS'].split(),
@ -223,10 +236,6 @@ if 'CONFIG_SPICE' in config_host
link_args: config_host['SPICE_LIBS'].split())
endif
rt = cc.find_library('rt', required: false)
libmpathpersist = not_found
if config_host.has_key('CONFIG_MPATH')
libmpathpersist = cc.find_library('mpathpersist')
endif
libdl = not_found
if 'CONFIG_PLUGIN' in config_host
libdl = cc.find_library('dl', required: true)
@ -258,8 +267,64 @@ if 'CONFIG_CURL' in config_host
endif
libudev = not_found
if targetos == 'linux' and (have_system or have_tools)
libudev = dependency('libudev', static: enable_static)
libudev = dependency('libudev',
required: get_option('mpath').enabled(),
static: enable_static)
endif
mpathpersist = not_found
mpathpersist_new_api = false
if targetos == 'linux' and have_tools and not get_option('mpath').disabled()
mpath_test_source_new = '''
#include <libudev.h>
#include <mpath_persist.h>
unsigned mpath_mx_alloc_len = 1024;
int logsink;
static struct config *multipath_conf;
extern struct udev *udev;
extern struct config *get_multipath_config(void);
extern void put_multipath_config(struct config *conf);
struct udev *udev;
struct config *get_multipath_config(void) { return multipath_conf; }
void put_multipath_config(struct config *conf) { }
int main(void) {
udev = udev_new();
multipath_conf = mpath_lib_init();
return 0;
}'''
mpath_test_source_old = '''
#include <libudev.h>
#include <mpath_persist.h>
unsigned mpath_mx_alloc_len = 1024;
int logsink;
int main(void) {
struct udev *udev = udev_new();
mpath_lib_init(udev);
return 0;
}'''
libmultipath = cc.find_library('multipath',
required: get_option('mpath'),
static: enable_static)
libmpathpersist = cc.find_library('mpathpersist',
required: get_option('mpath'),
static: enable_static)
if libmultipath.found() and libmpathpersist.found() and libudev.found()
mpathlibs = [libmultipath, libmpathpersist, libudev]
if cc.links(mpath_test_source_new, dependencies: mpathlibs)
mpathpersist = declare_dependency(dependencies: mpathlibs)
mpathpersist_new_api = true
elif cc.links(mpath_test_source_old, dependencies: mpathlibs)
mpathpersist = declare_dependency(dependencies: mpathlibs)
else
if get_option('mpath').enabled()
error('Cannot detect libmpathpersist API')
else
warning('Cannot detect libmpathpersist API, disabling')
endif
endif
endif
endif
brlapi = not_found
if 'CONFIG_BRLAPI' in config_host
brlapi = declare_dependency(link_args: config_host['BRLAPI_LIBS'].split())
@ -441,6 +506,8 @@ has_gettid = cc.has_function('gettid')
# Create config-host.h
config_host_data.set('CONFIG_LIBUDEV', libudev.found())
config_host_data.set('CONFIG_MPATH', mpathpersist.found())
config_host_data.set('CONFIG_MPATH_NEW_API', mpathpersist_new_api)
config_host_data.set('CONFIG_SDL', sdl.found())
config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
config_host_data.set('CONFIG_VNC', vnc.found())
@ -1205,7 +1272,7 @@ if have_tools
executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
dependencies: [authz, crypto, io, qom, qemuutil,
libcap_ng, libudev, libmpathpersist],
libcap_ng, mpathpersist],
install: true)
endif
@ -1342,7 +1409,7 @@ summary_info += {'Audio drivers': config_host['CONFIG_AUDIO_DRIVERS']}
summary_info += {'Block whitelist (rw)': config_host['CONFIG_BDRV_RW_WHITELIST']}
summary_info += {'Block whitelist (ro)': config_host['CONFIG_BDRV_RO_WHITELIST']}
summary_info += {'VirtFS support': config_host.has_key('CONFIG_VIRTFS')}
summary_info += {'Multipath support': config_host.has_key('CONFIG_MPATH')}
summary_info += {'Multipath support': mpathpersist.found()}
summary_info += {'VNC support': vnc.found()}
if vnc.found()
summary_info += {'VNC SASL support': sasl.found()}