Fix implicit declarations in configure tests

hdf5-implicit.patch

@@ -1,6 +1,91 @@
+diff -up hdf5-1.8.18/configure.ac.implicit hdf5-1.8.18/configure.ac
+--- hdf5-1.8.18/configure.ac.implicit	2016-12-05 20:44:42.267653275 -0700
++++ hdf5-1.8.18/configure.ac	2016-12-05 20:52:16.666921290 -0700
+@@ -1316,9 +1316,9 @@ if test "x$HAVE_SZLIB" = "xyes" -a "x$HA
+         {       
+                 /* SZ_encoder_enabled returns 1 if encoder is present */
+             if(SZ_encoder_enabled() == 1)
+-                exit(0);
++                return(0);
+             else
+-                exit(1);
++                return(1);
+         }
+         ], [hdf5_cv_szlib_can_encode=yes], [hdf5_cv_szlib_can_encode=no],)])
+     
+@@ -1662,7 +1662,7 @@ for hdf5_cv_printf_ll in l ll L q unknow
+ 	char *s = malloc(128);
+ 	long long x = (long long)1048576 * (long long)1048576;
+ 	sprintf(s,"%${hdf5_cv_printf_ll}d",x);
+-	exit(strcmp(s,"1099511627776"));
++	return(strcmp(s,"1099511627776"));
+      }
+    ], [break],,[continue])
+ done])
+@@ -1690,7 +1690,7 @@ AC_CACHE_VAL([hdf5_cv_system_scope_threa
+ 
+       pthread_attr_init(&attribute);
+       ret=pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM);
+-      exit(ret==0 ? 0 : 1);
++      return(ret==0 ? 0 : 1);
+     }
+   ], [hdf5_cv_system_scope_threads=yes], [hdf5_cv_system_scope_threads=no],)])
+ 
+@@ -2308,7 +2308,7 @@ else
+                             ret = 0;
+                     }    
+                 }   
+-                exit(ret);
++                return(ret);
+         ]])]
+     , [hdf5_cv_ldouble_to_long_special=yes], [hdf5_cv_ldouble_to_long_special=no],)])
+ fi
+@@ -2396,7 +2396,7 @@ else
+                         s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00)
+                         ret = 0;
+                 }        
+-                exit(ret);
++                return(ret);
+         ]])]
+     , [hdf5_cv_long_to_ldouble_special=yes], [hdf5_cv_long_to_ldouble_special=no],)])
+ fi
+@@ -2429,6 +2429,7 @@ if test ${ac_cv_sizeof_long_double} = 0;
+ else
+    AC_CACHE_VAL([hdf5_cv_ldouble_to_llong_accurate],
+         [AC_TRY_RUN([
++        #include <string.h>
+         int main(void)
+         {
+             long double         ld = 20041683600089727.779961L;
+@@ -2463,7 +2464,7 @@ else
+                 }    
+             }    
+     done:
+-            exit(ret);
++            return(ret);
+         }
+         ], [hdf5_cv_ldouble_to_llong_accurate=yes], [hdf5_cv_ldouble_to_llong_accurate=no],)])
+ fi
+@@ -2494,6 +2495,7 @@ if test ${ac_cv_sizeof_long_double} = 0;
+ else
+    AC_CACHE_VAL([hdf5_cv_llong_to_ldouble_correct],
+         [AC_TRY_RUN([
++        #include <string.h>
+         int main(void)
+         {
+             long double         ld;
+@@ -2532,7 +2534,7 @@ else
+                     ret = 1;
+             }        
+     done:
+-            exit(ret);
++            return(ret);
+         }
+         ], [hdf5_cv_llong_to_ldouble_correct=yes], [hdf5_cv_llong_to_ldouble_correct=no],)])
+ fi
 diff -up hdf5-1.8.18/src/H5Dio.c.implicit hdf5-1.8.18/src/H5Dio.c
 --- hdf5-1.8.18/src/H5Dio.c.implicit	2016-11-04 12:41:06.000000000 -0600
-+++ hdf5-1.8.18/src/H5Dio.c	2016-12-05 11:55:01.904538855 -0700
++++ hdf5-1.8.18/src/H5Dio.c	2016-12-05 20:44:42.259653236 -0700
 @@ -30,6 +30,7 @@
  #include "H5Iprivate.h"		/* IDs			  		*/
  #include "H5MMprivate.h"        /* Memory management                    */
@@ -11,7 +96,7 @@ diff -up hdf5-1.8.18/src/H5Dio.c.implicit hdf5-1.8.18/src/H5Dio.c
  /* Remove this if H5R_DATASET_REGION is no longer used in this file */
 diff -up hdf5-1.8.18/src/H5Tprivate.h.implicit hdf5-1.8.18/src/H5Tprivate.h
 --- hdf5-1.8.18/src/H5Tprivate.h.implicit	2016-11-04 12:41:07.000000000 -0600
-+++ hdf5-1.8.18/src/H5Tprivate.h	2016-12-05 12:09:32.505896332 -0700
++++ hdf5-1.8.18/src/H5Tprivate.h	2016-12-05 20:44:42.259653236 -0700
 @@ -137,6 +137,7 @@ H5_DLL htri_t H5T_is_sensible(const H5T_
  H5_DLL uint32_t H5T_hash(H5F_t * file, const H5T_t *dt);
  H5_DLL herr_t H5T_set_latest_version(H5T_t *dt);
@@ -22,7 +107,7 @@ diff -up hdf5-1.8.18/src/H5Tprivate.h.implicit hdf5-1.8.18/src/H5Tprivate.h
  /* Reference specific functions */
 diff -up hdf5-1.8.18/test/cache_common.h.implicit hdf5-1.8.18/test/cache_common.h
 --- hdf5-1.8.18/test/cache_common.h.implicit	2016-11-04 12:41:07.000000000 -0600
-+++ hdf5-1.8.18/test/cache_common.h	2016-12-05 12:20:59.094165051 -0700
++++ hdf5-1.8.18/test/cache_common.h	2016-12-05 20:44:42.259653236 -0700
 @@ -684,6 +684,9 @@ void verify_unprotected(void);
  
  /*** H5AC level utility functions ***/
@@ -35,7 +120,7 @@ diff -up hdf5-1.8.18/test/cache_common.h.implicit hdf5-1.8.18/test/cache_common.
                                         hbool_t dump_data,
 diff -up hdf5-1.8.18/testpar/t_span_tree.c.implicit hdf5-1.8.18/testpar/t_span_tree.c
 --- hdf5-1.8.18/testpar/t_span_tree.c.implicit	2016-11-04 12:41:07.000000000 -0600
-+++ hdf5-1.8.18/testpar/t_span_tree.c	2016-12-05 13:08:06.505403191 -0700
++++ hdf5-1.8.18/testpar/t_span_tree.c	2016-12-05 20:44:42.260653241 -0700
 @@ -34,9 +34,15 @@
  
   */
@@ -54,7 +139,7 @@ diff -up hdf5-1.8.18/testpar/t_span_tree.c.implicit hdf5-1.8.18/testpar/t_span_t
  static void coll_write_test(int chunk_factor);
 diff -up hdf5-1.8.18/tools/perform/perf.c.implicit hdf5-1.8.18/tools/perform/perf.c
 --- hdf5-1.8.18/tools/perform/perf.c.implicit	2016-11-04 12:41:07.000000000 -0600
-+++ hdf5-1.8.18/tools/perform/perf.c	2016-12-05 13:17:36.125394103 -0700
++++ hdf5-1.8.18/tools/perform/perf.c	2016-12-05 20:44:42.260653241 -0700
 @@ -24,6 +24,7 @@
  
  #include "hdf5.h"