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-rw-r--r--configure.ac1
1 files changed, 0 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 903eeed..2f14c71 100644
--- a/configure.ac
+++ b/configure.ac
@@ -73,7 +73,6 @@ AC_HELP_STRING([--with-opt=debug], [compile for debugging (default)]),
esac
])
AC_CACHE_CHECK([what compiler optimizations to apply], [optflags], [optflags="-g"])
-AC_DEFINE(_XOPEN_SOURCE, 500, [Conform to Single Unix Specification.])
CDEBUGFLAGS="$optflags -Wall -pedantic -Wpointer-arith \
-Wstrict-prototypes -Wmissing-declarations -Wnested-externs"
AC_SUBST(CDEBUGFLAGS)