void *calloc(size_t nelem, size_t elsize);

Why the test for calloc limit is passing pointer difference limit as an
argument? The limit is defined as SIZE_MAX in C99 standard.

#include <stdlib.h>
#include <limits.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>

void main(){
        void * a = calloc(SIZE_MAX, 1);
        printf("a: %p, errno: %d, strerror: %s\n", a, errno, strerror(errno));
}

$ uname -a
SunOS ST-ul-cbe 5.11 11.4.75.178.0 i86pc i386 i86pc virtualbox
$ ./a.out
a: 0, errno: 12, strerror: Cannot allocate memory
$ uname -a
SunOS S11-3-SRU 5.11 11.3 i86pc i386 i86pc
$ ./a.out
a: 0, errno: 12, strerror: Not enough space
$ ggrep -r ENOMEM /usr/include/sys/errno.h
#define ENOMEM  12      /* Not enough core                      */

--- a/m4/malloc.m4
+++ b/m4/malloc.m4
@@ -130,12 +130,9 @@
       case "$host_os" in
         mingw*)
           gl_cv_func_malloc_posix=no ;;
-        irix* | solaris*)
+        irix*)
           dnl On IRIX 6.5, the three functions return NULL with errno unset
           dnl when the argument is larger than PTRDIFF_MAX.
-          dnl On Solaris 11.3, the three functions return NULL with errno set
-          dnl to EAGAIN, not ENOMEM, when the argument is larger than
-          dnl PTRDIFF_MAX.
           dnl Here is a test program:
 m4_divert_push([KILL])
 #include <errno.h>

Solaris grep doesn't know -F.
--- a/tests/deleg-2.tst
+++ b/tests/deleg-2.tst
@@ -18,7 +18,7 @@
 . $SRCDIR/defs || exit 1
 
 # a2ps should fail, saying it does not know the sheet test_delegation.ssh
-$CHK $OPT $TST_FILE -P void 2>&1 | grep -F 'cannot find style sheet' > /dev/null 2>&1
+$CHK $OPT $TST_FILE -P void 2>&1 | ggrep -F 'cannot find style sheet' > /dev/null 2>&1
 
 # Return status of grep
 exit $?

Solaris rm cannot remove current working directory.
--- a/tests/styles.tst
+++ b/tests/styles.tst
@@ -110,6 +110,7 @@
   cat $builddir/sum-ps-diff
   failure=1
 else
+  cd -
   rm -rf $builddir/sum-ps-diff $DIFF
 fi
 
@@ -121,6 +122,7 @@
   cat $builddir/sum-gps-diff
   failure=1
 else
+  cd -
   rm -rf $builddir/sum-gps-diff $GDIFF
 fi