From 3d4481c2920b7b983a8d791a266cd2bc9c96e846 Mon Sep 17 00:00:00 2001
From: Dana Robinson <43805+derobins@users.noreply.github.com>
Date: Tue, 22 Jun 2021 20:31:32 -0700
Subject: Removes checks for system(), which is C89/90 (#782)

---
 config/cmake/H5pubconf.h.in                | 3 ---
 config/cmake_ext_mod/ConfigureChecks.cmake | 2 --
 configure.ac                               | 2 +-
 tools/test/perform/iopipe.c                | 2 --
 4 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/config/cmake/H5pubconf.h.in b/config/cmake/H5pubconf.h.in
index 2e80023..fd52c24 100644
--- a/config/cmake/H5pubconf.h.in
+++ b/config/cmake/H5pubconf.h.in
@@ -352,9 +352,6 @@
 /* Define to 1 if you have the `symlink' function. */
 #cmakedefine H5_HAVE_SYMLINK @H5_HAVE_SYMLINK@
 
-/* Define to 1 if you have the `system' function. */
-#cmakedefine H5_HAVE_SYSTEM @H5_HAVE_SYSTEM@
-
 /* Define to 1 if you have the <sys/file.h> header file. */
 #cmakedefine H5_HAVE_SYS_FILE_H @H5_HAVE_SYS_FILE_H@
 
diff --git a/config/cmake_ext_mod/ConfigureChecks.cmake b/config/cmake_ext_mod/ConfigureChecks.cmake
index 81dcb2d..7e1385a 100644
--- a/config/cmake_ext_mod/ConfigureChecks.cmake
+++ b/config/cmake_ext_mod/ConfigureChecks.cmake
@@ -72,7 +72,6 @@ if (WINDOWS)
   set (${HDF_PREFIX}_HAVE_WIN32_API 1)
   set (${HDF_PREFIX}_HAVE_LIBM 1)
   set (${HDF_PREFIX}_HAVE_STRDUP 1)
-  set (${HDF_PREFIX}_HAVE_SYSTEM 1)
   set (${HDF_PREFIX}_HAVE_LONGJMP 1)
   if (NOT MINGW)
     set (${HDF_PREFIX}_HAVE_GETHOSTNAME 1)
@@ -494,7 +493,6 @@ CHECK_FUNCTION_EXISTS (sigprocmask       ${HDF_PREFIX}_HAVE_SIGPROCMASK)
 CHECK_FUNCTION_EXISTS (srandom           ${HDF_PREFIX}_HAVE_SRANDOM)
 CHECK_FUNCTION_EXISTS (strdup            ${HDF_PREFIX}_HAVE_STRDUP)
 CHECK_FUNCTION_EXISTS (symlink           ${HDF_PREFIX}_HAVE_SYMLINK)
-CHECK_FUNCTION_EXISTS (system            ${HDF_PREFIX}_HAVE_SYSTEM)
 
 CHECK_FUNCTION_EXISTS (tmpfile           ${HDF_PREFIX}_HAVE_TMPFILE)
 CHECK_FUNCTION_EXISTS (asprintf          ${HDF_PREFIX}_HAVE_ASPRINTF)
diff --git a/configure.ac b/configure.ac
index f9b823a..b5f4fe1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2029,7 +2029,7 @@ AC_CHECK_FUNCS([alarm clock_gettime difftime fcntl flock fork frexpf])
 AC_CHECK_FUNCS([frexpl gethostname getrusage gettimeofday])
 AC_CHECK_FUNCS([lstat rand_r random setsysinfo])
 AC_CHECK_FUNCS([signal longjmp setjmp siglongjmp sigsetjmp sigprocmask])
-AC_CHECK_FUNCS([srandom strdup symlink system])
+AC_CHECK_FUNCS([srandom strdup symlink])
 AC_CHECK_FUNCS([tmpfile asprintf vasprintf waitpid])
 
 ## ----------------------------------------------------------------------
diff --git a/tools/test/perform/iopipe.c b/tools/test/perform/iopipe.c
index d0db06a..2aa9e25 100644
--- a/tools/test/perform/iopipe.c
+++ b/tools/test/perform/iopipe.c
@@ -95,7 +95,6 @@ print_stats(const char *prefix,
 static void
 synchronize(void)
 {
-#ifdef H5_HAVE_SYSTEM
 #if defined(H5_HAVE_WIN32_API) && !defined(__CYGWIN__)
     _flushall();
 #else
@@ -107,7 +106,6 @@ synchronize(void)
     status = HDsystem("df >/dev/null");
     HDassert(status >= 0);
 #endif
-#endif
 }
 
 /*-------------------------------------------------------------------------
-- 
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