mirror of
https://github.com/vgough/encfs.git
synced 2024-11-23 00:13:20 +01:00
dda1f2b15c
git-svn-id: http://encfs.googlecode.com/svn/trunk@71 db9cf616-1c43-0410-9cb8-a902689de0d6
59 lines
2.1 KiB
Plaintext
59 lines
2.1 KiB
Plaintext
# ===========================================================================
|
|
# http://www.gnu.org/software/autoconf-archive/ax_ext_check_header.html
|
|
# ===========================================================================
|
|
#
|
|
# SYNOPSIS
|
|
#
|
|
# AX_EXT_CHECK_HEADER(<header>, <paths>).
|
|
#
|
|
# DESCRIPTION
|
|
#
|
|
# Check for <header> with -I<path> for each path in <paths> if need be.
|
|
# The first sucecssful path is chosen (eg if you say
|
|
# AX_EXT_CHECK_HEADER(foo.h, bar baz qux) and -Ibaz works then -Iqux will
|
|
# not be tested.
|
|
#
|
|
# Any -I flags that locate a header are added to CFLAGS and CPPFLAGS. AS
|
|
# with AC_CHECK_HEADERS it causes HAVE_<header>_H to be defined as 1.
|
|
#
|
|
# Example:
|
|
#
|
|
# AX_EXT_HAVE_HEADER(openssl/rsa.h, /usr/local/include /usr/local/ssl/include /usr/local/openssl/include)
|
|
#
|
|
# LICENSE
|
|
#
|
|
# Copyright (c) 2008 Duncan Simpson <dps@simpson.demon.co.uk>
|
|
#
|
|
# Copying and distribution of this file, with or without modification, are
|
|
# permitted in any medium without royalty provided the copyright notice
|
|
# and this notice are preserved. This file is offered as-is, without any
|
|
# warranty.
|
|
|
|
#serial 7
|
|
|
|
AC_DEFUN([AX_EXT_HAVE_HEADER],
|
|
[AC_LANG_PUSH(C)
|
|
AC_CHECK_HEADER($1, [$3 got="yes"], [$4 got="no"], $5)
|
|
hdr=`echo $1 | $as_tr_sh`
|
|
for dir in $2; do
|
|
if test "x${got}" = "xno"; then
|
|
ext_hashdr_cvdir=`echo $dir | $as_tr_sh`
|
|
AC_CACHE_CHECK([for $1 library with -I$dir],
|
|
[ext_cv${ext_hashdr_cvdir}_hashdr_${hdr}],
|
|
[ext_have_hdr_save_cflags=${CFLAGS}
|
|
CFLAGS="${CFLAGS} -I${dir}"
|
|
AC_COMPILE_IFELSE(
|
|
[AC_LANG_PROGRAM([#include <$1>])],
|
|
[got="yes"; eval "ext_cv${ext_hashdr_cvdir}_hashdr_${hdr}"="yes"],
|
|
[got="no"; eval "ext_cv${ext_hashdr_cvdir}_hashdr_${hdr}"="no"])
|
|
CFLAGS=$ext_have_hdr_save_cflags])
|
|
if eval `echo 'test x${'ext_cv${ext_hashdr_cvdir}_hashdr_${hdr}'}' = "xyes"`; then
|
|
CFLAGS="${CFLAGS} -I${dir}"
|
|
CPPFLAGS="${CPPFLAGS} -I${dir}"
|
|
got="yes";
|
|
hdr=`echo $1 | $as_tr_cpp`
|
|
AC_DEFINE_UNQUOTED(HAVE_${hdr}, 1,
|
|
[Define this if you have the $1 header])
|
|
fi; fi; done
|
|
AC_LANG_POP])
|