meson: apply defaults if /etc/login.defs doesn't exist

Apply defaults for system_{uid,gid}_max even if the /etc/login.defs file
doesn't exist (e.g. in Clear Linux with no changes).

awk returns an empty string in case the file doesn't exist, causing meson to
fail in to_int(). So set the default if output is empty. This makes the BEGIN{}
blocks unnecessary, so remove them.

(cherry picked from commit 2f62cf3552d48f518313bd6265bad6763e2b643b)

diff --git a/meson.build b/meson.build
index 05bbcc67dc279ab9a26c0527e26a93cae5fd9750..96fb8b134e6755c8fce895e7ff5db535cc604552 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -754,8 +754,11 @@ system_uid_max = get_option('system-uid-max')
 if system_uid_max == ''
         system_uid_max = run_command(
                 awk,
-                'BEGIN { uid=999 } /^\s*SYS_UID_MAX\s+/ { uid=$2 } END { print uid }',
-                '/etc/login.defs').stdout()
+                '/^\s*SYS_UID_MAX\s+/ { uid=$2 } END { print uid }',
+                '/etc/login.defs').stdout().strip()
+        if system_uid_max == ''
+                system_uid_max = '999'
+        endif
 endif
 system_uid_max = system_uid_max.to_int()
 conf.set('SYSTEM_UID_MAX', system_uid_max)
@@ -766,8 +769,11 @@ system_gid_max = get_option('system-gid-max')
 if system_gid_max == ''
         system_gid_max = run_command(
                 awk,
-                'BEGIN { gid=999 } /^\s*SYS_GID_MAX\s+/ { gid=$2 } END { print gid }',
-                '/etc/login.defs').stdout()
+                '/^\s*SYS_GID_MAX\s+/ { gid=$2 } END { print gid }',
+                '/etc/login.defs').stdout().strip()
+        if system_gid_max == ''
+                system_gid_max = '999'
+        endif
 endif
 system_gid_max = system_gid_max.to_int()
 conf.set('SYSTEM_GID_MAX', system_gid_max)