Guard individual compatibility header prototypes.

This is to avoid redefining prototypes from the libc headers. Also,
simplify the autoconf function checks and remove some copy/paste
errors checking for 'write'.

ok wouter@

1 files changed, 5 insertions, 0 deletions

diff --git a/include/unistd.h b/include/unistd.h
index ae82b95..037b11a 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -3,7 +3,12 @@
 #ifndef LIBCRYPTOCOMPAT_UNISTD_H
 #define LIBCRYPTOCOMPAT_UNISTD_H
 
+#ifdef NO_GETENTROPY
 int getentropy(void *buf, size_t buflen);
+#endif
+
+#ifdef NO_ISSETUGID
 int issetugid(void);
+#endif
 
 #endif