configure.ac

#
# configure.in for the OpenSSL TPM engine project
#

AC_INIT(openssl-tpm-engine, 0.5.0, trousers-users@lists.sf.net)
AM_INIT_AUTOMAKE(1.6.3)

# Debugging support
AC_ARG_ENABLE(debug,
		AC_HELP_STRING([--enable-debug], [turn on all debugging flags [default is off]]),
		[enable_debug="yes"
		 AC_MSG_RESULT([*** Enabling debugging at user request ***])],)

# If the user has not set CFLAGS, do something appropriate
test_CFLAGS=${CFLAGS+set}
if test "$test_CFLAGS" != set; then
	if test "x$enable_debug" == "xyes"; then
		CFLAGS="-O0 -g -DDEBUG"
	else
		CFLAGS="-O2"
	fi
fi

#if test "${OPENSSL_LIB_DIR+set}" != set; then
#	OPENSSL_LIB_DIR="/usr/local/ssl/lib"
#fi
#if test "${OPENSSL_INCLUDE_DIR+set}" != set; then
#	OPENSSL_INCLUDE_DIR="/usr/local/ssl/include"
#fi

# Non-standard OpenSSL
AC_MSG_CHECKING([Non-standard OpenSSL])
AC_ARG_WITH(openssl,
	[AS_HELP_STRING([--with-openssl=PATH], [Location of openssl libs/includes])],
	[OPENSSL_INCLUDE_DIR="$withval/include"
	 OPENSSL_LIB_DIR="$withval/lib"
	 if [[ ! -d $OPENSSL_INCLUDE_DIR -o ! -d $OPENSSL_LIB_DIR ]]; then
		AC_MSG_ERROR([$OPENSSL_INCLUDE_DIR or $OPENSSL_LIB_DIR doen't exist!])
	 else
		AC_MSG_RESULT([yes])
		CFLAGS="$CFLAGS -L$OPENSSL_LIB_DIR -I$OPENSSL_INCLUDE_DIR"
	 fi],
	[AC_MSG_RESULT([no])
	 AC_SUBST(OPENSSL_LIB_DIR)
	 AC_SUBST(OPENSSL_INCLUDE_DIR)])

AC_DISABLE_STATIC
AC_PROG_CC
AC_PROG_LIBTOOL

AC_MSG_CHECKING([for OpenSSL 1.1])
AC_TRY_COMPILE(
    [#include <openssl/opensslv.h>],
    [
	    #if OPENSSL_VERSION_NUMBER < 0x1010000fL
	    #	error "old ssl"
	    #else
	    #   warning "new openssl"
	    #endif
    ],
    [AC_MSG_RESULT(yes)
    openssl_11=true
    ],
    [AC_MSG_RESULT(no)
    openssl_11=false
    ]
)
AM_CONDITIONAL([OPENSSL_11], [test x$openssl_11 = xtrue])

PKG_CHECK_MODULES([libcrypto], [libcrypto],
		  [libcrypto_enginesdir=`$PKG_CONFIG --variable=enginesdir libcrypto`],
		  [libcrypto_enginesdir="\${libdir}/openssl/engines"]
)

AC_ARG_WITH([enginedir],
  [AS_HELP_STRING([--with-enginedir=DIR], [engine directory])],
  [enginedir=$withval],
  [enginedir="$libcrypto_enginesdir"])
AC_SUBST([enginedir], [$enginedir])

CFLAGS="$CFLAGS -Wall"
AC_SUBST(CFLAGS)


AC_OUTPUT(Makefile src/Makefile test/Makefile)

echo "CFLAGS=$CFLAGS"