1 dnl Check to find the OpenSSL headers/libraries
5 tinc_ac_save_CPPFLAGS="$CPPFLAGS"
8 AC_HELP_STRING([--with-openssl=DIR], [OpenSSL base directory, or:]),
10 CFLAGS="$CFLAGS -I$withval/include"
11 CPPFLAGS="$CPPFLAGS -I$withval/include"
12 LIBS="$LIBS -L$withval/lib"]
15 AC_ARG_WITH(openssl-include,
16 AC_HELP_STRING([--with-openssl-include=DIR], [OpenSSL headers directory (without trailing /openssl)]),
17 [openssl_include="$withval"
18 CFLAGS="$CFLAGS -I$withval"
19 CPPFLAGS="$CPPFLAGS -I$withval"]
22 AC_ARG_WITH(openssl-lib,
23 AC_HELP_STRING([--with-openssl-lib=DIR], [OpenSSL library directory]),
24 [openssl_lib="$withval"
25 LIBS="$LIBS -L$withval"]
28 AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h,
30 [AC_MSG_ERROR([OpenSSL header files not found.]); break]
33 CPPFLAGS="$tinc_ac_save_CPPFLAGS"
37 AC_CHECK_LIB(crypto, SHA1_version,
38 [LIBS="$LIBS -lcrypto -lgdi32"],
39 [AC_MSG_ERROR([OpenSSL libraries not found.])]
43 AC_CHECK_LIB(crypto, SHA1_version,
44 [LIBS="$LIBS -lcrypto"],
45 [AC_MSG_ERROR([OpenSSL libraries not found.])]
50 [AC_CHECK_LIB(dl, dlopen,
52 [AC_MSG_ERROR([OpenSSL depends on libdl.]); break]
58 AC_CHECK_FUNCS([RAND_pseudo_bytes EVP_EncryptInit_ex], ,
59 [AC_MSG_ERROR([Missing OpenSSL functionality, make sure you have installed the latest version.]); break],
62 AC_CHECK_DECL([OpenSSL_add_all_algorithms], ,
63 [AC_MSG_ERROR([Missing OpenSSL functionality, make sure you have installed the latest version.]); break],
64 [#include <openssl/evp.h>]