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# Copyright (c) 2014-2015 Brent Cook
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
AC_INIT([libretls], m4_esyscmd([tr -d '\n' < VERSION]))
AC_SUBST([LIBTLS_VERSION], m4_esyscmd([tr -d '\n' < LIBTLS_VERSION]))
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE([subdir-objects foreign])
AC_CONFIG_MACRO_DIR([m4])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
# This must be saved before AC_PROG_CC
USER_CFLAGS="$CFLAGS"
AC_PROG_CC([cc gcc])
AC_PROG_CC_STDC
AM_PROG_CC_C_O
LT_INIT([pic-only])
CHECK_OS_OPTIONS
CHECK_C_HARDENING_OPTIONS
DISABLE_AS_EXECUTABLE_STACK
AM_PROG_AS
DISABLE_COMPILER_WARNINGS
CHECK_LIBC_COMPAT
CHECK_CRYPTO_COMPAT
CHECK_VA_COPY
AC_MSG_CHECKING([if .gnu.warning accepts long strings])
AC_LINK_IFELSE([AC_LANG_SOURCE([[
extern void SSLv3_method();
__asm__(".section .gnu.warning.SSLv3_method\n\t.ascii \"SSLv3_method is insecure\"\n\t.text");
int main() {return 0;}
]])], [
AC_DEFINE(HAS_GNU_WARNING_LONG, 1, [Define if .gnu.warning accepts long strings.])
AC_MSG_RESULT(yes)
], [
AC_MSG_RESULT(no)
])
# Check if time_t is sized correctly
AC_CHECK_SIZEOF([time_t], [time.h])
AX_CHECK_OPENSSL([], [AC_MSG_ERROR([unable to find OpenSSL])])
AC_CONFIG_FILES([
Makefile
include/Makefile
man/Makefile
libtls.pc
])
AM_CONDITIONAL([SMALL_TIME_T], [test "$ac_cv_sizeof_time_t" = "4"])
if test "$ac_cv_sizeof_time_t" = "4"; then
AC_DEFINE([SMALL_TIME_T])
echo " ** Warning, this system is unable to represent times past 2038"
echo " ** It will behave incorrectly when handling valid RFC5280 dates"
if test "$host_os" = "mingw32" ; then
echo " **"
echo " ** You can solve this by adjusting the build flags in your"
echo " ** mingw-w64 toolchain. Refer to README.windows for details."
fi
fi
AC_OUTPUT
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