win32: add waitpid()

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

2 files changed, 11 insertions, 0 deletions

diff --git a/win32/Kbuild b/win32/Kbuild
index 85f5ca7c4..22f8252d0 100644
--- a/win32/Kbuild
+++ b/win32/Kbuild
@@ -6,3 +6,4 @@ lib-y:=
 
 lib-$(CONFIG_PLATFORM_MINGW32) += fnmatch.o
 lib-$(CONFIG_PLATFORM_MINGW32) += mingw.o
+lib-$(CONFIG_PLATFORM_MINGW32) += process.o
diff --git a/win32/process.c b/win32/process.c
new file mode 100644
index 000000000..77d19fb9a
--- /dev/null
+++ b/win32/process.c
@@ -0,0 +1,10 @@
+#include "libbb.h"
+
+int waitpid(pid_t pid, int *status, unsigned options)
+{
+        /* Windows does not understand parent-child */
+        if (options == 0 && pid != -1)
+                return _cwait(status, pid, 0);
+        errno = EINVAL;
+        return -1;
+}