Removes checks for signal and set/longjmp, which are C89 (#798)

Also removes checks for setjmp.h and stddef.h

2 files changed, 4 insertions, 52 deletions

diff --git a/src/H5detect.c b/src/H5detect.c
index d148301..b2c0924 100644
--- a/src/H5detect.c
+++ b/src/H5detect.c
@@ -80,7 +80,7 @@ H5_GCC_DIAG_OFF("cast-align")
 #define H5SETJMP(buf)       HDsigsetjmp(buf, 1)
 #define H5LONGJMP(buf, val) HDsiglongjmp(buf, val)
 #define H5HAVE_SIGJMP       /* sigsetjmp/siglongjmp are supported. */
-#elif defined(H5_HAVE_LONGJMP)
+#else
 #define H5JMP_BUF           jmp_buf
 #define H5SETJMP(buf)       HDsetjmp(buf)
 #define H5LONGJMP(buf, val) HDlongjmp(buf, val)
@@ -149,12 +149,8 @@ static int          sigbus_handler_called_g  = 0; /* how many times called */
 static int          sigsegv_handler_called_g = 0; /* how many times called */
 static int          sigill_handler_called_g  = 0; /* how many times called */
 static int          signal_handler_tested_g  = 0; /* how many times tested */
-#if defined(H5SETJMP) && defined(H5_HAVE_SIGNAL)
-static int verify_signal_handlers(int signum, void (*handler)(int));
-#endif
-#ifdef H5JMP_BUF
-static H5JMP_BUF jbuf_g;
-#endif
+static int          verify_signal_handlers(int signum, void (*handler)(int));
+static H5JMP_BUF    jbuf_g;
 
 /*-------------------------------------------------------------------------
  * Function:    precision
@@ -388,7 +384,6 @@ precision(detected_t *d)
         COMP_ALIGN = (unsigned int)((char *)(&(s.x)) - (char *)(&s));                                        \
     }
 
-#if defined(H5SETJMP) && defined(H5_HAVE_SIGNAL)
 #define ALIGNMENT(TYPE, INFO)                                                                                \
     {                                                                                                        \
         char *volatile _buf    = NULL;                                                                       \
@@ -435,15 +430,6 @@ precision(detected_t *d)
         HDsignal(SIGSEGV, _handler2); /*restore original handler*/                                           \
         HDsignal(SIGILL, _handler3);  /*restore original handler*/                                           \
     }
-#else
-#define ALIGNMENT(TYPE, INFO)                                                                                \
-    {                                                                                                        \
-        align_status_g |= STA_NoALIGNMENT;                                                                   \
-        (INFO.align) = 0;                                                                                    \
-    }
-#endif
-
-#if defined(H5LONGJMP) && defined(H5_HAVE_SIGNAL)
 
 /*-------------------------------------------------------------------------
  * Function:    sigsegv_handler
@@ -473,9 +459,6 @@ sigsegv_handler(int H5_ATTR_UNUSED signo)
     HDsignal(SIGSEGV, sigsegv_handler);
     H5LONGJMP(jbuf_g, SIGSEGV);
 }
-#endif
-
-#if defined(H5LONGJMP) && defined(H5_HAVE_SIGNAL)
 
 /*-------------------------------------------------------------------------
  * Function:    sigbus_handler
@@ -505,9 +488,6 @@ sigbus_handler(int H5_ATTR_UNUSED signo)
     HDsignal(SIGBUS, sigbus_handler);
     H5LONGJMP(jbuf_g, SIGBUS);
 }
-#endif
-
-#if defined(H5LONGJMP) && defined(H5_HAVE_SIGNAL)
 
 /*-------------------------------------------------------------------------
  * Function:    sigill_handler
@@ -537,7 +517,6 @@ sigill_handler(int H5_ATTR_UNUSED signo)
     HDsignal(SIGILL, sigill_handler);
     H5LONGJMP(jbuf_g, SIGILL);
 }
-#endif
 
 /*-------------------------------------------------------------------------
  * Function:    print_results
@@ -777,21 +756,6 @@ done:\n\
         fprintf(rawoutstream, "/* Signal handlers verify test is not available */\n");
         /* The following is available in H5pubconf.h. Printing them here for */
         /* convenience. */
-#ifdef H5_HAVE_SIGNAL
-    fprintf(rawoutstream, "/* Signal() support: yes */\n");
-#else
-    fprintf(rawoutstream, "/* Signal() support: no */\n");
-#endif
-#ifdef H5_HAVE_SETJMP
-    fprintf(rawoutstream, "/* setjmp() support: yes */\n");
-#else
-    fprintf(rawoutstream, "/* setjmp() support: no */\n");
-#endif
-#ifdef H5_HAVE_LONGJMP
-    fprintf(rawoutstream, "/* longjmp() support: yes */\n");
-#else
-    fprintf(rawoutstream, "/* longjmp() support: no */\n");
-#endif
 #ifdef H5_HAVE_SIGSETJMP
     fprintf(rawoutstream, "/* sigsetjmp() support: yes */\n");
 #else
@@ -1568,7 +1532,6 @@ detect_alignments(void)
     na_g++;
 }
 
-#if defined(H5SETJMP) && defined(H5_HAVE_SIGNAL)
 /* Verify the signal handler for signal signum works correctly multiple times.
  * One possible cause of failure is that the signal handling is blocked or
  * changed to SIG_DFL after H5LONGJMP.
@@ -1625,7 +1588,6 @@ verify_signal_handlers(int signum, void (*handler)(int))
         return 0;
     }
 }
-#endif
 
 /*-------------------------------------------------------------------------
  * Function:    main
@@ -1655,7 +1617,6 @@ main(int argc, char *argv[])
     if (!rawoutstream)
         rawoutstream = stdout;
 
-#if defined(H5SETJMP) && defined(H5_HAVE_SIGNAL)
     /* verify the SIGBUS and SIGSEGV handlers work properly */
     if (verify_signal_handlers(SIGBUS, sigbus_handler) != 0) {
         fprintf(stderr, "Signal handler %s for signal %d failed\n", "sigbus_handler", SIGBUS);
@@ -1666,9 +1627,6 @@ main(int argc, char *argv[])
     if (verify_signal_handlers(SIGILL, sigill_handler) != 0) {
         fprintf(stderr, "Signal handler %s for signal %d failed\n", "sigill_handler", SIGILL);
     }
-#else
-    align_status_g |= STA_NoHandlerVerify;
-#endif
 
     print_header();
 
diff --git a/src/H5private.h b/src/H5private.h
index f90aa94..2478c2e 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -32,6 +32,7 @@
 #include <fcntl.h>
 #include <float.h>
 #include <math.h>
+#include <setjmp.h>
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -63,13 +64,6 @@
 #endif
 
 /*
- * Longjumps are used to detect alignment constrants
- */
-#ifdef H5_HAVE_SETJMP_H
-#include <setjmp.h>
-#endif
-
-/*
  * flock() in sys/file.h is used for the implementation of file locking.
  */
 #if defined(H5_HAVE_FLOCK) && defined(H5_HAVE_SYS_FILE_H)