1 files changed, 1 insertions, 1 deletions
diff --git a/configure b/configure
index c112b7f7..9c3a8dd8 100755
--- a/configure
+++ b/configure
@@ -97,7 +97,7 @@ yacc='$(cross)$(tool_prefix)$(yaccname)'
 yacc_given=
 nm='$(cross)$(tool_prefix)nm'
 opt_flags=-O2
-lang_flags='-ansi -D_BSD_SOURCE -D_XOPEN_SOURCE=500 -D_POSIX_C_SOURCE=199309L'
+lang_flags='-ansi -D_BSD_SOURCE -D_XOPEN_SOURCE=500'
 diag_flags='-Wall -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=strict-prototypes'
 debug_flags=-g
 inline=