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(AC_PATH_PROG): Add PR_PROGRAM.

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If available, prefer support for large files unless the user specified
one of the CPPFLAGS, LDFLAGS, or LIBS variables.
(AC_STRUCT_ST_RDEV): Add.
(HAVE_ST_FSTYPE_STRING): Add.
(--with-mvfs-stat-bug, --with-nfs-stat-bug): New options.
(HAVE_MEMCHR): New macro.
(AC_CHECK_FUNCS): Add sicprocmask.
This commit is contained in:
Paul Eggert 1998-09-14 06:13:10 +00:00
parent eb6efbf9c6
commit 19db0feae5
1 changed files with 76 additions and 2 deletions
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78
configure.ac
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@ -1,5 +1,5 @@
# Configure template for GNU diffutils.
# Copyright (C) 1994 Free Software Foundation, Inc.
# Copyright 1994, 1995, 1998 Free Software Foundation, Inc.
# Process this file with autoconf to produce a configure script.
AC_INIT(diff.h)
@ -10,6 +10,40 @@ AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PATH_PROG(PR_PROGRAM, pr, "")
# If available, prefer support for large files unless the user specified
# one of the CPPFLAGS, LDFLAGS, or LIBS variables.
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 $ac_shellvar in
CPPFLAGS) ac_lfsvar=LFS_CFLAGS ;;
*) ac_lfsvar=LFS_$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 $ac_lfsvar`
ac_getconfs=$ac_getconfs$ac_getconf
eval ac_test_$ac_shellvar=\$ac_getconf
done
case "$ac_result$ac_getconfs" in
yes) ac_result=no ;;
esac
case "$ac_result$ac_set" in
yes?*) 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
AC_ISC_POSIX
AC_MINIX
AC_C_CONST
@ -21,10 +55,50 @@ AC_HEADER_DIRENT
AC_HEADER_STAT
AC_HEADER_SYS_WAIT
AC_STRUCT_ST_BLKSIZE
AC_STRUCT_ST_RDEV
AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_CHECK_FUNCS(dup2 memchr sigaction strchr strerror tmpnam)
AC_MSG_CHECKING([for st_fstype string in struct stat])
AC_CACHE_VAL(diff_cv_st_fstype_string,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/stat.h>], [struct stat s; s.st_fstype[0] = 'x';],
diff_cv_st_fstype_string=yes,
diff_cv_st_fstype_string=no)])
AC_MSG_RESULT($diff_cv_st_fstype_string)
if test $diff_cv_st_fstype_string = yes; then
AC_DEFINE(HAVE_ST_FSTYPE_STRING)
fi
AC_ARG_WITH(mvfs-stat-bug,
[ --with-mvfs-stat-bug work around ClearCase MVFS stat bug (bug id ATRia04618)])
case $with_mvfs_stat_bug in
yes)
AC_DEFINE(WITH_MVFS_STAT_BUG)
esac
AC_ARG_WITH(nfs-stat-bug,
[ --with-nfs-stat-bug work around rare NFS server bugs (see README)])
case $with_nfs_stat_bug in
yes)
AC_DEFINE(WITH_NFS_STAT_BUG)
esac
# Check for NetBSD 1.0 bug, where memchr(..., 0) returns nonzero.
AC_MSG_CHECKING(for working memchr)
AC_CACHE_VAL(ac_cv_func_memchr,
[AC_TRY_RUN([#include <string.h>
main () { exit (memchr ("", 0, 0) != 0 || memchr ("", 1, 0) != 0); }],
ac_cv_func_memchr=yes,
ac_cv_func_memchr=no,
AC_MSG_WARN([We are cross-compiling so we assume memchr does not work.])
ac_cv_func_memchr=no)])dnl
AC_MSG_RESULT($ac_cv_func_memchr)
if test $ac_cv_func_memchr = yes; then
AC_DEFINE(HAVE_MEMCHR)
fi
AC_CHECK_FUNCS(dup2 sigaction sigprocmask strchr strerror tmpnam)
AC_REPLACE_FUNCS(memchr waitpid)
AC_FUNC_ALLOCA
AC_FUNC_CLOSEDIR_VOID