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+dnl Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.61)
+AC_INIT([libbswabe], [0.9], [bethenco@cs.berkeley.edu])
+AC_CONFIG_SRCDIR([bswabe.h])
+
+dnl First, standard system stuff.
+
+dnl language and compiler support
+AC_MSG_CHECKING(whether to enable debugging)
+debug_default="no"
+AC_ARG_ENABLE(debug, [ --enable-debug=[no/yes] turn on debugging
+ [default=$debug_default]],, enable_debug=$debug_default)
+if test "x$enable_debug" = "xyes"; then
+ CFLAGS="-g -Wall"
+ LDFLAGS="-g -Wall"
+ AC_DEFINE(BSWABE_DEBUG)
+ AC_MSG_RESULT(yes)
+else
+ CFLAGS="-O3 -Wall"
+ LDFLAGS="-O3 -Wall"
+ AC_MSG_RESULT(no)
+fi
+AC_PROG_CC
+AC_LANG(C)
+AC_C_CONST
+AC_TYPE_UINT32_T
+
+dnl standard headers
+AC_HEADER_STDC
+AC_CHECK_HEADERS([stdint.h stdlib.h string.h],,
+ [AC_MSG_ERROR([could not find all required headers stdint.h, stdlib.h, string.h])])
+
+dnl specific library functions
+AC_FUNC_MALLOC
+AC_FUNC_ALLOCA
+AC_FUNC_VPRINTF
+AC_CHECK_LIB(crypto, SHA1,,
+ [AC_MSG_ERROR([please install the OpenSSL crypto library, libcrypto.])])
+AC_CHECK_FUNCS([strdup],,
+ [AC_MSG_ERROR([could not link to required function strdup])])
+
+dnl Now, we check for specific packages we need.
+AM_PATH_GLIB_2_0([2.0.0])
+GMP_4_0_CHECK
+PBC_CHECK
+
+dnl Specify the output.
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT