Add AC_HEADER_ASSERT

configure.ac

@@ -33,6 +33,7 @@ AC_PROG_INSTALL
 AC_PROG_CC_C_O # Need to have per product flags myexecutable_CFLAG
 AC_PROG_RANLIB # Need for to create libraries: .a 
 
+
 # Checks for libraries.
 
 # Found libraries are automatically addded to LIBS
@@ -45,6 +46,7 @@ AC_PROG_RANLIB # Need for to create libraries: .a
 #                 ])
 
 # Checks for header files.
+AC_HEADER_ASSERT # ./configure --disable-assert to define NDEBUG 
 AC_CHECK_HEADER([stdlib.h])
 
 # Check for C11's optional Atomic operations library 

src/main.c

@@ -4,6 +4,7 @@
 
 #include <stdio.h>
 #include "common.h"
+#include <assert.h>
 
 int main(int argc, char *argv[])
 {
@@ -13,5 +14,6 @@ int main(int argc, char *argv[])
   printf ("PACKAGE_NAME "PACKAGE_NAME "\n");
   printf ("PACKAGE_STRING " PACKAGE_STRING "\n");
   printf ("PACKAGE_TARNAME " PACKAGE_TARNAME "\n");
+  assert( 1 > 0);
   return 0;
 }