defs.h: do not include <signal.h>

* printsiginfo.h: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h: Do not include <signal.h>.
(printsiginfo): Remove.
* printsiginfo.c: Include <signal.h> and "printsiginfo.h".
* strace.c: Likewise.
* sigaltstack.c: Include <signal.h>.
* signal.c: Likewise.
* sigreturn.c: Likewise.
* time.c: Likewise.

Makefile.am

@@ -79,6 +79,7 @@ strace_SOURCES =	\
 	printmode.c	\
 	printrusage.c	\
 	printsiginfo.c	\
+	printsiginfo.h	\
 	printstat.h	\
 	process.c	\
 	process_vm.c	\

defs.h

@@ -50,7 +50,6 @@
 /* #include <ctype.h> */
 #include <string.h>
 #include <errno.h>
-#include <signal.h>
 #include <time.h>
 #include <sys/time.h>
 #include <sys/syscall.h>
@@ -564,7 +563,6 @@ extern void printtv_bitness(struct tcb *, long, enum bitness_t, int);
 extern char *sprinttv(char *, struct tcb *, long, enum bitness_t, int special);
 extern void print_timespec(struct tcb *, long);
 extern void sprint_timespec(char *, struct tcb *, long);
-extern void printsiginfo(const siginfo_t *, bool);
 extern void printsiginfo_at(struct tcb *tcp, long addr);
 extern void printfd(struct tcb *, int);
 extern bool print_sockaddr_by_inode(const unsigned long, const char *);

printsiginfo.c

@@ -1,5 +1,9 @@
 #include "defs.h"
 
+#include <signal.h>
+
+#include "printsiginfo.h"
+
 #include "xlat/sigbus_codes.h"
 #include "xlat/sigchld_codes.h"
 #include "xlat/sigfpe_codes.h"

printsiginfo.h

@@ -0,0 +1 @@
+extern void printsiginfo(const siginfo_t *, bool);

sigaltstack.c

@@ -1,4 +1,7 @@
 #include "defs.h"
+
+#include <signal.h>
+
 #include "xlat/sigaltstack_flags.h"
 
 static void

signal.c

@@ -32,6 +32,7 @@
  */
 
 #include "defs.h"
+#include <signal.h>
 
 #ifndef NSIG
 # warning NSIG is not defined, using 32

sigreturn.c

@@ -1,4 +1,5 @@
 #include "defs.h"
+#include <signal.h>
 #include "regs.h"
 #include "ptrace.h"
 

strace.c

@@ -32,6 +32,7 @@
 #include <stdarg.h>
 #include <sys/param.h>
 #include <fcntl.h>
+#include <signal.h>
 #include <sys/resource.h>
 #include <sys/wait.h>
 #include <sys/stat.h>
@@ -44,6 +45,7 @@
 #endif
 
 #include "ptrace.h"
+#include "printsiginfo.h"
 
 /* In some libc, these aren't declared. Do it ourself: */
 extern char **environ;

time.c

@@ -29,6 +29,7 @@
 
 #include "defs.h"
 #include <fcntl.h>
+#include <signal.h>
 #include <linux/version.h>
 #include <sys/timex.h>