Get rid of the unused HAVE_SIG_ATOMIC_T et. al.

It was added in 2006 but I see no evidence it was ever used.

CMake/OtherTests.cmake

@@ -220,28 +220,6 @@ int main(void) {
   return 0;
 }" HAVE_STRUCT_TIMEVAL)
 
-set(HAVE_SIG_ATOMIC_T 1)
-set(CMAKE_REQUIRED_FLAGS)
-if(HAVE_SIGNAL_H)
-  set(CMAKE_REQUIRED_FLAGS "-DHAVE_SIGNAL_H")
-  set(CMAKE_EXTRA_INCLUDE_FILES "signal.h")
-endif()
-check_type_size("sig_atomic_t" SIZEOF_SIG_ATOMIC_T)
-if(HAVE_SIZEOF_SIG_ATOMIC_T)
-  check_c_source_compiles("
-    #ifdef HAVE_SIGNAL_H
-    #  include <signal.h>
-    #endif
-    int main(void) {
-      static volatile sig_atomic_t dummy = 0;
-      (void)dummy;
-      return 0;
-    }" HAVE_SIG_ATOMIC_T_NOT_VOLATILE)
-  if(NOT HAVE_SIG_ATOMIC_T_NOT_VOLATILE)
-    set(HAVE_SIG_ATOMIC_T_VOLATILE 1)
-  endif()
-endif()
-
 if(HAVE_WINDOWS_H)
   set(CMAKE_EXTRA_INCLUDE_FILES winsock2.h)
 else()

acinclude.m4

@@ -1458,50 +1458,6 @@ AC_DEFUN([CURL_CHECK_STRUCT_TIMEVAL], [
 ])
 
 
-dnl TYPE_SIG_ATOMIC_T
-dnl -------------------------------------------------
-dnl Check if the sig_atomic_t type is available, and
-dnl verify if it is already defined as volatile.
-
-AC_DEFUN([TYPE_SIG_ATOMIC_T], [
-  AC_CHECK_HEADERS(signal.h)
-  AC_CHECK_TYPE([sig_atomic_t],[
-    AC_DEFINE(HAVE_SIG_ATOMIC_T, 1,
-      [Define to 1 if sig_atomic_t is an available typedef.])
-  ], ,[
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
-#endif
-  ])
-  case "$ac_cv_type_sig_atomic_t" in
-    yes)
-      #
-      AC_MSG_CHECKING([if sig_atomic_t is already defined as volatile])
-      AC_LINK_IFELSE([
-        AC_LANG_PROGRAM([[
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
-#endif
-        ]],[[
-          static volatile sig_atomic_t dummy = 0;
-        ]])
-      ],[
-        AC_MSG_RESULT([no])
-        curl_cv_sig_atomic_t_volatile="no"
-      ],[
-        AC_MSG_RESULT([yes])
-        curl_cv_sig_atomic_t_volatile="yes"
-      ])
-      #
-      if test "$curl_cv_sig_atomic_t_volatile" = "yes"; then
-        AC_DEFINE(HAVE_SIG_ATOMIC_T_VOLATILE, 1,
-          [Define to 1 if sig_atomic_t is already defined as volatile.])
-      fi
-      ;;
-  esac
-])
-
-
 dnl TYPE_IN_ADDR_T
 dnl -------------------------------------------------
 dnl Check for in_addr_t: it is used to receive the return code of inet_addr()

configure.ac

@@ -3205,8 +3205,6 @@ TYPE_IN_ADDR_T
 
 TYPE_SOCKADDR_STORAGE
 
-TYPE_SIG_ATOMIC_T
-
 CURL_CHECK_FUNC_SELECT
 
 CURL_CHECK_FUNC_RECV

lib/Makefile.netware

@@ -580,7 +580,6 @@ endif
 	@echo $(DL)#define HAVE_SETLOCALE 1$(DL) >> $@
 	@echo $(DL)#define HAVE_SIGNAL 1$(DL) >> $@
 	@echo $(DL)#define HAVE_SIGNAL_H 1$(DL) >> $@
-	@echo $(DL)#define HAVE_SIG_ATOMIC_T 1$(DL) >> $@
 	@echo $(DL)#define HAVE_SOCKET 1$(DL) >> $@
 	@echo $(DL)#define HAVE_STDLIB_H 1$(DL) >> $@
 	@echo $(DL)#define HAVE_STRDUP 1$(DL) >> $@

lib/config-amigaos.h

@@ -55,7 +55,6 @@
 #define HAVE_SETJMP_H 1
 #define HAVE_SIGNAL 1
 #define HAVE_SIGNAL_H 1
-#define HAVE_SIG_ATOMIC_T 1
 #define HAVE_SOCKET 1
 #define HAVE_STRCASECMP 1
 #define HAVE_STRDUP 1

lib/config-mac.h

@@ -67,7 +67,6 @@
 
 #define HAVE_SIGACTION          1
 #define HAVE_SIGNAL_H           1
-#define HAVE_SIG_ATOMIC_T       1
 
 #ifdef MACOS_SSL_SUPPORT
 #  define USE_OPENSSL           1

lib/config-os400.h

@@ -235,12 +235,6 @@
 /* Define if you have the <signal.h> header file. */
 #define HAVE_SIGNAL_H
 
-/* Define if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T
-
-/* Define if sig_atomic_t is already defined as volatile. */
-#undef HAVE_SIG_ATOMIC_T_VOLATILE
-
 /* Define if you have the `socket' function. */
 #define HAVE_SOCKET
 

lib/config-plan9.h

@@ -149,7 +149,6 @@
 #define HAVE_SIGNAL 1
 #define HAVE_SIGNAL_H 1
 #define HAVE_SIGSETJMP 1
-#define HAVE_SIG_ATOMIC_T 1
 #define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
 #define HAVE_SOCKET 1
 #define HAVE_SSL_GET_SHUTDOWN 1

lib/config-riscos.h

@@ -227,12 +227,6 @@
 /* Define if you have the <signal.h> header file. */
 #define HAVE_SIGNAL_H
 
-/* Define if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T
-
-/* Define if sig_atomic_t is already defined as volatile. */
-#undef HAVE_SIG_ATOMIC_T_VOLATILE
-
 /* Define if you have the `socket' function. */
 #define HAVE_SOCKET
 

lib/config-tpf.h

@@ -366,12 +366,6 @@
 /* Define to 1 if you have the <signal.h> header file. */
 #define HAVE_SIGNAL_H 1
 
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
 /* If you have sigsetjmp */
 /* #undef HAVE_SIGSETJMP */
 

lib/config-vxworks.h

@@ -445,12 +445,6 @@
 /* Define to 1 if you have the sigsetjmp function or macro. */
 /* #undef HAVE_SIGSETJMP */
 
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
-
 /* Define to 1 if struct sockaddr_in6 has the sin6_scope_id member */
 #define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
 

lib/config-win32.h

@@ -149,9 +149,6 @@
 /*                        OTHER HEADER INFO                         */
 /* ---------------------------------------------------------------- */
 
-/* Define if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
 /* Define if you have the ANSI C header files. */
 #define STDC_HEADERS 1
 

lib/config-win32ce.h

@@ -123,9 +123,6 @@
 /*                        OTHER HEADER INFO                         */
 /* ---------------------------------------------------------------- */
 
-/* Define if sig_atomic_t is an available typedef. */
-#define HAVE_SIG_ATOMIC_T 1
-
 /* Define if you have the ANSI C header files.  */
 #define STDC_HEADERS 1
 

lib/curl_config.h.cmake

@@ -521,12 +521,6 @@
 /* Define to 1 if you have the sigsetjmp function or macro. */
 #cmakedefine HAVE_SIGSETJMP 1
 
-/* Define to 1 if sig_atomic_t is an available typedef. */
-#cmakedefine HAVE_SIG_ATOMIC_T 1
-
-/* Define to 1 if sig_atomic_t is already defined as volatile. */
-#cmakedefine HAVE_SIG_ATOMIC_T_VOLATILE 1
-
 /* Define to 1 if struct sockaddr_in6 has the sin6_scope_id member */
 #cmakedefine HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
 

lib/curl_setup_once.h

@@ -323,26 +323,6 @@ struct timeval {
 
 #include "curl_ctype.h"
 
-/*
- * Typedef to 'int' if sig_atomic_t is not an available 'typedefed' type.
- */
-
-#ifndef HAVE_SIG_ATOMIC_T
-typedef int sig_atomic_t;
-#define HAVE_SIG_ATOMIC_T
-#endif
-
-
-/*
- * Convenience SIG_ATOMIC_T definition
- */
-
-#ifdef HAVE_SIG_ATOMIC_T_VOLATILE
-#define SIG_ATOMIC_T static sig_atomic_t
-#else
-#define SIG_ATOMIC_T static volatile sig_atomic_t
-#endif
-
 
 /*
  * Macro used to include code only in debug builds.