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1AC_PREREQ([2.69])
2AC_INIT([scrypt],1.2.1,
3 [https://github.com/Tarsnap/scrypt],[scrypt],[http://www.tarsnap.com/scrypt/])
4AC_CONFIG_SRCDIR([lib/scryptenc/scryptenc.c])
5AC_CONFIG_AUX_DIR([config.aux])
6AC_CONFIG_MACRO_DIR([m4])
7AM_INIT_AUTOMAKE([foreign subdir-objects -Wall])
8
9# Checks for programs.
10AC_PROG_CC_C99
11AC_PROG_RANLIB
12AM_PROG_AR
13
14# Don't rebuild the configure script. I'm distributing a perfectly good one.
15AM_MAINTAINER_MODE
16
17# Checks for libraries.
18
19# Check for clock_gettime. On some systems, this is provided via librt.
20AC_SEARCH_LIBS([clock_gettime], [rt])
21AC_CHECK_FUNCS([clock_gettime])
22
23AC_SEARCH_LIBS([AES_encrypt], [crypto],,
24 AC_MSG_ERROR([function AES_ENCRYPT not found]))
25
26# Check for a linuxy sysinfo syscall; and while we're doing that, check if
27# struct sysinfo is the old version (total RAM == totalmem) or the new
28# version (total RAM == totalmem * mem_unit).
29AC_CHECK_HEADERS([sys/sysinfo.h])
30AC_CHECK_FUNCS([sysinfo])
31AC_CHECK_TYPES([struct sysinfo], [], [], [[#include <sys/sysinfo.h>]])
32AC_CHECK_MEMBERS([struct sysinfo.totalram, struct sysinfo.mem_unit], [], [],
33 [[#include <sys/sysinfo.h>]])
34
35# Check if we have <sys/param.h>, since some systems require it for sysctl
36# to work.
37AC_CHECK_HEADERS([sys/param.h])
38
39# Check if we have <openssl/aes.h>, to fix the make failing when configure
40# passes.
41AC_CHECK_HEADERS([openssl/aes.h],,
42 [AC_MSG_ERROR([Unable to find the openssl/aes.h header])])
43
44# Check for <sys/sysctl.h>. If it exists and it defines HW_USERMEM
45# and/or HW_MEMSIZE, we'll try using those as memory limits.
46AC_CHECK_HEADERS([sys/sysctl.h])
47
48# Check for posix_memalign
49AC_CHECK_FUNCS([posix_memalign])
50
51# Check for mmap so we can work around its absence on Minix
52AC_CHECK_FUNCS([mmap])
53
54AC_SYS_LARGEFILE
55
56# Check whether the user has requested to disable compiler warnings
57AC_MSG_CHECKING([compiler_warnings])
58AC_ARG_ENABLE(compiler_warnings,
59 AS_HELP_STRING([--disable-compiler-warnings],
60 [Do not request compiler warnings. @<:@default=enabled@:>@]),
61 [ac_compiler_warnings=$enableval],
62 [ac_compiler_warnings=yes])
63AC_MSG_RESULT([${ac_compiler_warnings}])
64AS_IF([test x${ac_compiler_warnings} = xyes],
65 [AX_CFLAGS_WARN_ALL])
66
67AC_CONFIG_HEADERS([config.h])
68AC_CONFIG_FILES([Makefile])
69AC_OUTPUT
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