1 files changed, 3 insertions, 3 deletions
diff --git a/configure b/configure
index 955a568684..40f30ddbb6 100755
--- a/configure
+++ b/configure
@@ -1664,7 +1664,7 @@ LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
 
 CC_O='-o $@'
 
-host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
+host_cflags='-D_ISOC99_SOURCE -O3 -g -Wall'
 host_libs='-lm'
 
 target_path='$(CURDIR)'
@@ -2316,7 +2316,7 @@ if test "$?" != 0; then
     die "C compiler test failed."
 fi
 
-add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
+add_cppflags -D_ISOC99_SOURCE
 check_cflags -std=c99
 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
 #include <stdlib.h>
@@ -2364,7 +2364,6 @@ case $target_os in
         disable symver
         oss_indev_extralibs="-lossaudio"
         oss_outdev_extralibs="-lossaudio"
-        add_cppflags -D_XOPEN_SOURCE=600
         ;;
     openbsd)
         enable malloc_aligned
@@ -2457,6 +2456,7 @@ case $target_os in
         enable dos_paths
         ;;
     linux)
+        add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
         enable dv1394
         ;;
     irix*)