build: add seccomp build option

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

meson.build

@@ -146,6 +146,7 @@ want_capabilities = get_option('capabilities')
 want_apparmor = get_option('apparmor')
 want_openssl = get_option('openssl')
 want_selinux = get_option('selinux')
+want_seccomp = get_option('seccomp')
 
 srcconf.set_quoted('DEFAULT_CGROUP_PATTERN', cgrouppattern)
 if coverity
@@ -291,6 +292,7 @@ endif
 threads = dependency('threads')
 
 ## Seccomp.
+if want_seccomp
     libseccomp = dependency('libseccomp', required: false)
     srcconf.set10('HAVE_SECCOMP', libseccomp.found())
     pkgconfig_libs += libseccomp
@@ -327,6 +329,9 @@ if libseccomp.found()
             endif
         endforeach
     endif
+else
+    srcconf.set10('HAVE_SECCOMP', false)
+endif
 
 ## SELinux.
 if want_selinux
@@ -667,9 +672,12 @@ subdir('src/lxc/pam')
 # Library.
 liblxc_dependencies = [
     threads,
-    libseccomp,
 ]
 
+if want_seccomp
+    liblxc_dependencies += libseccomp
+endif
+
 if want_capabilities
     liblxc_dependencies += [libcap]
 endif

meson_options.txt

@@ -32,6 +32,9 @@ option('commands', type: 'boolean', value: 'true',
 option('capabilities', type: 'boolean', value: 'true',
        description: 'use capabilities')
 
+option('seccomp', type: 'boolean', value: 'true',
+       description: 'use seccomp')
+
 option('apparmor', type: 'boolean', value: 'true',
        description: 'use apparmor')
 

src/lxc/meson.build

@@ -139,7 +139,7 @@ liblxc_sources = files(
     'uuid.c',
     'uuid.h')
 
-if libseccomp.found()
+if want_seccomp and libseccomp.found()
     liblxc_sources += files('seccomp.c')
 endif