Use #if rather than #ifdef to check autoconf guards.

[folly.git] / folly / FileUtil.cpp

diff --git a/folly/FileUtil.cpp b/folly/FileUtil.cpp
index 0c719a875358254d0136707c432c30aa4356ce0a..2977757fcbf3b7571b3a73295e1eb8e5bb4848ad 100644 (file)
--- a/folly/FileUtil.cpp
+++ b/folly/FileUtil.cpp
@@ -132,7 +132,7 @@ ssize_t readvFull(int fd, iovec* iov, int count) {
   return wrapvFull(readv, fd, iov, count);
 }
 
-#ifdef FOLLY_HAVE_PREADV
+#if FOLLY_HAVE_PREADV
 ssize_t preadvFull(int fd, iovec* iov, int count, off_t offset) {
   return wrapvFull(preadv, fd, iov, count, offset);
 }
@@ -142,7 +142,7 @@ ssize_t writevFull(int fd, iovec* iov, int count) {
   return wrapvFull(writev, fd, iov, count);
 }
 
-#ifdef FOLLY_HAVE_PWRITEV
+#if FOLLY_HAVE_PWRITEV
 ssize_t pwritevFull(int fd, iovec* iov, int count, off_t offset) {
   return wrapvFull(pwritev, fd, iov, count, offset);
 }