PATCH: large file support on SunOS 5

[Peter Stephenson <pws@ibmth.df.unipi.it>]

This is the patch for large file support on SunOS 5 using the configuration
code lifted from bash.  There was one additional difficulty that $LDFLAGS
was always set, so that $auto_ldflags has to be tested to see if it was set
by configure.

--- aczsh.m4.2gb	Sat Jan  9 17:12:41 1999
+++ aczsh.m4	Thu May  6 16:58:50 1999
@@ -25,6 +25,47 @@
 dnl
 
 dnl
+dnl Code from the configure system for bash 2.03 (not zsh copyright).
+dnl If available, use support for large files unless the user specified
+dnl one of the CPPFLAGS, LDFLAGS, or LIBS variables (<eggert@twinsun.com>
+dnl via GNU patch 2.5)
+dnl
+AC_DEFUN(zsh_LARGE_FILE_SUPPORT,
+[AC_MSG_CHECKING(whether large file support needs explicit enabling)
+ac_getconfs=''
+ac_result=yes
+ac_set=''
+ac_shellvars='CPPFLAGS LDFLAGS LIBS'
+for ac_shellvar in $ac_shellvars; do
+  case $ac_shellvar in
+  CPPFLAGS) ac_lfsvar=LFS_CFLAGS ac_lfs64var=LFS64_CFLAGS ;;
+  *) ac_lfsvar=LFS_$ac_shellvar ac_lfs64var=LFS64_$ac_shellvar ;;
+  esac
+  eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar
+  (getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; }
+  ac_getconf=`getconf $ac_lfsvar`
+  ac_getconf64=`getconf $ac_lfs64var`
+  ac_getconfs=$ac_getconfs$ac_getconf\ $ac_getconf64
+  eval ac_test_$ac_shellvar="\$ac_getconf\ \$ac_getconf64"
+done
+case "$ac_result$ac_getconfs" in
+yes) ac_result=no ;;
+esac
+case "$ac_result$ac_set" in
+yes?*) test "x$ac_set" != "xLDFLAGS" -o "x$auto_ldflags" = x && {
+  ac_result="yes, but $ac_set is already set, so use its settings"
+}
+esac
+AC_MSG_RESULT($ac_result)
+case $ac_result in
+yes)
+  for ac_shellvar in $ac_shellvars; do
+    eval $ac_shellvar=\$ac_test_$ac_shellvar
+  done ;;
+esac
+])
+
+dnl
 dnl zsh_SYS_DYNAMIC_BROKEN
 dnl   Check whether static/shared library linking is broken.
 dnl
--- configure.in.2gb	Mon May  3 16:38:10 1999
+++ configure.in	Thu May  6 16:36:15 1999
@@ -204,6 +204,10 @@
 
 AC_PROG_CC
 
+dnl Check for large file support (Solaris).
+dnl This needs to be done early to get the stuff into the flags.
+zsh_LARGE_FILE_SUPPORT
+
 dnl if the user hasn't specified CFLAGS, then
 dnl   if compiler is gcc, then use -O2 and some warning flags
 dnl   else use -O

-- 
Peter Stephenson <pws@ibmth.df.unipi.it>       Tel: +39 050 844536
WWW:  http://www.ifh.de/~pws/
Dipartimento di Fisica, Via Buonarroti 2, 56127 Pisa, Italy