o use readdir_r() - looks like readdir is indeed not really multi-thread

  aware.

Makefile

@@ -6,7 +6,7 @@ F_VERSION=$(shell git log -n1 --date=short --format="%cd (commit=%h)" 2>/dev/nul
 CFLAGS=-D_FILE_OFFSET_BITS=64 -Wall -O2 -DFOLVE_VERSION='"$(F_VERSION)"'
 
 CXXFLAGS=$(CFLAGS)
-LDFLAGS=-lfuse -lsndfile -lzita-convolver -lmicrohttpd -lboost_thread-mt -lfftw3f
+LDFLAGS=-lfuse -lsndfile -lzita-convolver -lmicrohttpd -lfftw3f
 
 ifdef LINK_STATIC
 # static linking requires us to be much more explicit when linking

folve-main.cc

@@ -86,7 +86,11 @@ static int folve_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
   if (dp == NULL)
     return -errno;
 
-  while ((de = readdir(dp)) != NULL) {
+  // Entry size is a bit shaky to calculate, but this should be the upper bound.
+  const size_t entry_size = sizeof(struct dirent) + PATH_MAX;
+  struct dirent *entry_buf = (struct dirent *) malloc(entry_size);
+
+  while (readdir_r(dp, entry_buf, &de) == 0 && de != NULL) {
     struct stat st;
     memset(&st, 0, sizeof(st));
     st.st_ino = de->d_ino;
@@ -95,6 +99,7 @@ static int folve_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
     if (filler(buf, entry_name, &st, 0))
       break;
   }
+  free(entry_buf);
 
   closedir(dp);
   return 0;