https://github.com/adrian-thurston/colm/pull/145

commit 0a0fa0a41928564fa92100bff1bc21f85d770bfb
Author: Fabian Groffen <grobian@gentoo.org>
Date:   Wed Jan 12 20:32:44 2022 +0100

    src/bytecode.c: include config.h to activate guards
    
    Fix compilation on Solaris, which needs sys/wait.h for macros like
    WEXITSTATUS.
    
    Signed-off-by: Fabian Groffen <grobian@gentoo.org>

diff --git a/src/bytecode.c b/src/bytecode.c
index 8ef848b0..c30778da 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -20,6 +20,10 @@
  * SOFTWARE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include <colm/bytecode.h>
 
 #include <sys/types.h>