Full_Name: Adam Carlin Version: lmdb 0.9.20 OS: Windows 10 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (108.27.217.230)

I'm using Windows 10 with msys2 64bit (http://www.msys2.org/) which utilizes mingw-w64. When I compile lmdb (https://github.com/LMDB/lmdb/tree/mdb.RE/0.9) v0.9.20 it spits out the error message below...

blissend@shockedloris MSYS /c/Compile/lmdb/libraries/liblmdb $ make gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mdb.c mdb.c: In function ‘mdb_env_setup_locks’: mdb.c:4853:17: warning: implicit declaration of function ‘pthread_mutexattr_setrobust’ [-Wimplicit-function-declaration] if (!rc) rc = pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ mdb.c:4853:53: error: ‘PTHREAD_MUTEX_ROBUST’ undeclared (first use in this function) if (!rc) rc = pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST); ^~~~~~~~~~~~~~~~~~~~ mdb.c:4853:53: note: each undeclared identifier is reported only once for each function it appears in mdb.c: In function ‘mdb_mutex_failed’: mdb.c:362:37: warning: implicit declaration of function ‘pthread_mutex_consistent’ [-Wimplicit-function-declaration] #define mdb_mutex_consistent(mutex) pthread_mutex_consistent(mutex) ^ mdb.c:10220:10: note: in expansion of macro ‘mdb_mutex_consistent’ rc2 = mdb_mutex_consistent(mutex); ^~~~~~~~~~~~~~~~~~~~ make: *** [Makefile:83: mdb.o] Error 1

Anyway to fix this? If this helps, I've noticed that line 4853 for above error has an if check for MDB_ROBUST_SUPPORTED which gets defined on line 278. However the missing declaration of pthread_mutexattr_setrobust is in another if check above line 278.