Add the TEMP_FAILURE_RETRY macro to linux-sandbox-pid1.cc.

This allows us to build Bazel on Linux systems which use a C standard library that does not include this macro, like Alpine Linux (which uses musl).

Fixes bazelbuild#12460.

PiperOrigin-RevId: 374873483

src/main/tools/linux-sandbox-pid1.cc

@@ -49,6 +49,19 @@
 #include <linux/fs.h>
 #endif
 
+#ifndef TEMP_FAILURE_RETRY
+// Some C standard libraries like musl do not define this macro, so we'll
+// include our own version for compatibility.
+#define TEMP_FAILURE_RETRY(exp) \
+ ({ \
+ decltype(exp) _rc; \
+ do { \
+ _rc = (exp); \
+ } while (_rc == -1 && errno == EINTR); \
+ _rc; \
+ })
+#endif // TEMP_FAILURE_RETRY
+
 #include "src/main/tools/linux-sandbox-options.h"
 #include "src/main/tools/linux-sandbox.h"
 #include "src/main/tools/logging.h"