confstr: Add _CS_POSIX_V7_THREADS_*

This is used to determine what CFLAGS/LDFLAGS are needed to enable
compilation with threads on musl.  We don't have any special ones, so
just return an empty string.

This is required to be present in <unistd.h>.

1 files changed, 2 insertions, 0 deletions

diff --git a/include/unistd.h b/include/unistd.h
index 2b88bbb2..68686dfd 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -460,6 +460,8 @@ int eaccess(const char *, int);
 #define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS	1147
 #define _CS_V6_ENV	1148
 #define _CS_V7_ENV	1149
+#define _CS_POSIX_V7_THREADS_CFLAGS	1150
+#define _CS_POSIX_V7_THREADS_LDFLAGS	1151
 
 #ifdef __cplusplus
 }