-
- AC_CACHE_CHECK([for openssl], tinc_cv_openssl_include,
- [
- AC_ARG_WITH(openssl,
- [ --with-openssl=DIR OpenSSL library and headers prefix],
- [echo -ne 'prefix...'
- openssl_lib="$withval/lib"
- openssl_include="$withval/include"]
- )
- AC_ARG_WITH(openssl-include,
- [ --with-openssl-include=DIR OpenSSL headers directory],
- [echo -ne 'includes...'
- openssl_include="$withvall"]
- )
- AC_ARG_WITH(openssl-lib,
- [ --with-openssl-lib=DIR OpenSSL library directory],
- [echo -ne 'libraries...'
- openssl_lib="$withval"]
- )
-
-if test "x$openssl_lib" != "x" ; then
- LIBS="$LIBS -L$openssl_lib"
-fi
-if test "x$openssl_include" != "x" ; then
- INCLUDES="$INCLUDES -I$openssl_include"
-fi
-
-AC_MSG_RESULT([done.])
- ])
-
-libcrypto=none
-AC_CHECK_LIB(crypto, SHA1_version, [
- libcrypto=yes
-])
-
-if test $libcrypto = none; then
- AC_MSG_ERROR(
-[It seems like OpenSSL is not installed on this system. But perhaps
-you need to supply the exact location of the headers and libraries.
-You can try running configure with the --with-openssl=/DIRECTORY
-parameter. If you installed the headers and libraries in a different
-location you can use --with-openssl-include=/DIR and
---with-openssl-lib=/DIR.])
-
-else
- LIBS="$LIBS -lcrypto"
-fi
-
+ case $host_os in
+ *mingw*)
+ ;;
+ *)
+ AC_CHECK_FUNC(dlopen,
+ [],
+ [AC_CHECK_LIB(dl, dlopen,
+ [LIBS="$LIBS -ldl"],
+ [AC_MSG_ERROR([LibreSSL/OpenSSL depends on libdl.]); break]
+ )]
+ )
+ ;;
+ esac
+
+ AC_ARG_WITH(openssl,
+ AS_HELP_STRING([--with-openssl=DIR], [LibreSSL/OpenSSL base directory, or:]),
+ [openssl="$withval"
+ CPPFLAGS="$CPPFLAGS -I$withval/include"
+ LDFLAGS="$LDFLAGS -L$withval/lib"]
+ )
+
+ AC_ARG_WITH(openssl-include,
+ AS_HELP_STRING([--with-openssl-include=DIR], [LibreSSL/OpenSSL headers directory (without trailing /openssl)]),
+ [openssl_include="$withval"
+ CPPFLAGS="$CPPFLAGS -I$withval"]
+ )
+
+ AC_ARG_WITH(openssl-lib,
+ AS_HELP_STRING([--with-openssl-lib=DIR], [LibreSSL/OpenSSL library directory]),
+ [openssl_lib="$withval"
+ LDFLAGS="$LDFLAGS -L$withval"]
+ )
+
+ AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h openssl/engine.h,
+ [],
+ [AC_MSG_ERROR([LibreSSL/OpenSSL header files not found.]); break]
+ )
+
+ AC_CHECK_LIB(crypto, EVP_EncryptInit_ex,
+ [LIBS="-lcrypto $LIBS"],
+ [AC_MSG_ERROR([LibreSSL/OpenSSL libraries not found.])]
+ )
+
+ AC_CHECK_FUNCS([RAND_bytes EVP_EncryptInit_ex EVP_CIPHER_CTX_new], ,
+ [AC_MSG_ERROR([Missing LibreSSL/OpenSSL functionality, make sure you have installed the latest version.]); break],
+ )
+
+ AC_CHECK_DECLS([OpenSSL_add_all_algorithms, EVP_aes_256_cfb], ,
+ [AC_MSG_ERROR([Missing LibreSSL/OpenSSL functionality, make sure you have installed the latest version.]); break],
+ [#include <openssl/evp.h>]
+ )
+
+ AC_CHECK_FUNCS([BN_GENCB_new ERR_remove_state RSA_set0_key], , , [#include <openssl/rsa.h>])