Define _DEFAULT_SOURCE to get various posix/gnu glibc functions declared (commonmark#137)

keith-packard · Ashe Connor · commit 2a9996f6718f · 2019-03-13T10:50:27.000+11:00
fdopen, strdup and others are not declared by glibc header files
unless _DEFAULT_SOURCE is defined.

Signed-off-by: Keith Packard &lt;keithp@keithp.com&gt;
diff --git a/api_test/harness.c b/api_test/harness.c
@@ -1,3 +1,4 @@
+#define _DEFAULT_SOURCE
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+#define _DEFAULT_SOURCE`
`1`	`2`	`#include <stdarg.h>`
`2`	`3`	`#include <stdio.h>`
`3`	`4`	`#include <stdlib.h>`