Get awk to build and make it hackable

libc/integral/c.inc

@@ -654,7 +654,8 @@ typedef struct {
 
 #ifndef __STRICT_ANSI__
 #if defined(__GNUC__) || defined(__llvm__)
-#pragma GCC diagnostic ignored "-Wundef" /* complaints about __ASSEMBLER__/__LINKER__  */
+#pragma GCC diagnostic ignored \
+    "-Wundef" /* complaints about __ASSEMBLER__/__LINKER__  */
 #pragma GCC diagnostic ignored "-Wsign-compare" /* lint needs to change  */
 #pragma GCC diagnostic ignored "-Wtype-limits" /* makes macros unsafe  */
 #pragma GCC diagnostic ignored "-Woverflow" /* also breaks macros  */
@@ -733,7 +734,6 @@ typedef struct {
 #pragma GCC diagnostic error "-Wwrite-strings"
 #pragma GCC diagnostic error "-Wtrampolines"
 #pragma GCC diagnostic error "-Wmaybe-uninitialized"
-#pragma GCC diagnostic error "-Wredundant-decls"
 #if __GNUC__ >= 6
 #pragma GCC diagnostic error "-Wnonnull-compare"
 #if defined(COSMO) && !defined(MODE_DBG) && !defined(STACK_FRAME_UNLIMITED)

libc/isystem/signal.h

@@ -3,5 +3,6 @@
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/sigaction.h"
 #include "libc/calls/struct/siginfo.h"
+#include "libc/sysv/consts/sa.h"
 #include "libc/sysv/consts/sicode.h"
 #endif

libc/stdio/stdio.h

@@ -6,6 +6,7 @@
 #define _STDIO_H
 #define L_ctermid    20
 #define FILENAME_MAX PATH_MAX
+#define FOPEN_MAX    1000
 
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_