build-sys: __secure_getenv lost dunder in libc 2.17

3 files changed, 16 insertions, 6 deletions

diff --git a/src/shared/dbus-common.c b/src/shared/dbus-common.c
index b8229bd663..0c73d6c6a8 100644
--- a/src/shared/dbus-common.c
+++ b/src/shared/dbus-common.c
@@ -32,6 +32,7 @@
 #include "log.h"
 #include "dbus-common.h"
 #include "util.h"
+#include "missing.h"
 #include "def.h"
 #include "strv.h"
 
@@ -121,7 +122,7 @@ int bus_connect(DBusBusType t, DBusConnection **_bus, bool *_private, DBusError
                          * try via XDG_RUNTIME_DIR first, then
                          * fallback to normal bus access */
 
-                        e = __secure_getenv("XDG_RUNTIME_DIR");
+                        e = secure_getenv("XDG_RUNTIME_DIR");
                         if (e) {
                                 char *p;
 
diff --git a/src/shared/log.c b/src/shared/log.c
index 847202d7d3..96634645bc 100644
--- a/src/shared/log.c
+++ b/src/shared/log.c
@@ -30,6 +30,7 @@
 
 #include "log.h"
 #include "util.h"
+#include "missing.h"
 #include "macro.h"
 #include "socket-util.h"
 
@@ -804,19 +805,19 @@ int log_set_max_level_from_string(const char *e) {
 void log_parse_environment(void) {
         const char *e;
 
-        e = __secure_getenv("SYSTEMD_LOG_TARGET");
+        e = secure_getenv("SYSTEMD_LOG_TARGET");
         if (e && log_set_target_from_string(e) < 0)
                 log_warning("Failed to parse log target %s. Ignoring.", e);
 
-        e = __secure_getenv("SYSTEMD_LOG_LEVEL");
+        e = secure_getenv("SYSTEMD_LOG_LEVEL");
         if (e && log_set_max_level_from_string(e) < 0)
                 log_warning("Failed to parse log level %s. Ignoring.", e);
 
-        e = __secure_getenv("SYSTEMD_LOG_COLOR");
+        e = secure_getenv("SYSTEMD_LOG_COLOR");
         if (e && log_show_color_from_string(e) < 0)
                 log_warning("Failed to parse bool %s. Ignoring.", e);
 
-        e = __secure_getenv("SYSTEMD_LOG_LOCATION");
+        e = secure_getenv("SYSTEMD_LOG_LOCATION");
         if (e && log_show_location_from_string(e) < 0)
                 log_warning("Failed to parse bool %s. Ignoring.", e);
 }
diff --git a/src/shared/missing.h b/src/shared/missing.h
index 7fbb9259eb..c5bb71a504 100644
--- a/src/shared/missing.h
+++ b/src/shared/missing.h
@@ -26,6 +26,7 @@
 #include <sys/resource.h>
 #include <sys/syscall.h>
 #include <fcntl.h>
+#include <stdlib.h>
 #include <unistd.h>
 #include <linux/oom.h>
 
@@ -218,7 +219,6 @@ static inline pid_t gettid(void) {
 #endif
 
 #ifndef HAVE_NAME_TO_HANDLE_AT
-
 struct file_handle {
         unsigned int handle_bytes;
         int handle_type;
@@ -229,3 +229,11 @@ static inline int name_to_handle_at(int fd, const char *name, struct file_handle
         return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
 }
 #endif
+
+#ifndef HAVE_SECURE_GETENV
+#  ifdef HAVE___SECURE_GETENV
+#    define secure_getenv __secure_getenv
+#  else
+#    error neither secure_getenv nor __secure_getenv are available
+#  endif
+#endif