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-rw-r--r--converter/ppm/ximtoppm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/converter/ppm/ximtoppm.c b/converter/ppm/ximtoppm.c
index ce5e6396..75faac69 100644
--- a/converter/ppm/ximtoppm.c
+++ b/converter/ppm/ximtoppm.c
@@ -10,6 +10,7 @@
 ** implied warranty.
 */
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */