Define _POSIX_C_SOURCE only if it is not defined

Fixes https://github.com/behdad/harfbuzz/pull/45

Define _POSIX_C_SOURCE only if it is not defined
Fixes https://github.com/behdad/harfbuzz/pull/45
73f7f891 · Behdad Esfahbod · 6bd5646f · 73f7f891
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src/hb-blob.cc src/hb-blob.cc +2 -0

未找到文件。
--- a/src/hb-blob.cc
+++ b/src/hb-blob.cc
@@ -25,7 +25,9 @@
 */

 /* http://www.oracle.com/technetwork/articles/servers-storage-dev/standardheaderfiles-453865.html */
+#ifndef _POSIX_C_SOURCE
 #define _POSIX_C_SOURCE 199309L
+#endif

 #include "hb-private.hh"