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-rw-r--r--libc/stdio/getline.c1
-rw-r--r--libc/stdio/perror.c1
-rw-r--r--libc/stdio/scanf.c1
3 files changed, 3 insertions, 0 deletions
diff --git a/libc/stdio/getline.c b/libc/stdio/getline.c
index 870f6ed4a..8b3331703 100644
--- a/libc/stdio/getline.c
+++ b/libc/stdio/getline.c
@@ -22,6 +22,7 @@
*/
#include <stddef.h>
+#include <sys/types.h>
#define __USE_GNU
#include <stdio.h>
diff --git a/libc/stdio/perror.c b/libc/stdio/perror.c
index 04cd688d8..33b5e08b0 100644
--- a/libc/stdio/perror.c
+++ b/libc/stdio/perror.c
@@ -1,3 +1,4 @@
+#include <string.h>
#include <stdio.h>
#include <errno.h>
diff --git a/libc/stdio/scanf.c b/libc/stdio/scanf.c
index 0b9e8007c..c8b487ed1 100644
--- a/libc/stdio/scanf.c
+++ b/libc/stdio/scanf.c
@@ -33,6 +33,7 @@
#include <stdlib.h>
#include <unistd.h>
+#define __USE_ISOC99
#include <stdio.h>
#include <ctype.h>
#include <string.h>