X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=m4%2Fopenssl.m4;h=32e41de76db75c55ecab6c75f862ac739f8c9761;hp=bf5ce9fcaae010fdef98cff8e61c5ec7fd60629a;hb=da3078c63a3b658573f6e2f986f69ed4d7993b3a;hpb=c5c02a0861bf540e07fe64704cb97aae29c4cacf

diff --git a/m4/openssl.m4 b/m4/openssl.m4
index bf5ce9fc..32e41de7 100644
--- a/m4/openssl.m4
+++ b/m4/openssl.m4
@@ -4,28 +4,63 @@ AC_DEFUN(tinc_OPENSSL,
 [
   tinc_ac_save_CPPFLAGS="$CPPFLAGS"
 
+  AC_ARG_WITH(openssl,
+    AC_HELP_STRING([--with-openssl=DIR], [OpenSSL base directory, or:]),
+    [openssl="$withval"
+     CFLAGS="$CFLAGS -I$withval/include"
+     CPPFLAGS="$CPPFLAGS -I$withval/include"
+     LIBS="$LIBS -L$withval/lib"]
+  )
+
   AC_ARG_WITH(openssl-include,
-    [  --with-openssl-include=DIR  OpenSSL headers directory (without trailing /openssl)],
+    AC_HELP_STRING([--with-openssl-include=DIR], [OpenSSL headers directory (without trailing /openssl)]),
     [openssl_include="$withval"
      CFLAGS="$CFLAGS -I$withval"
      CPPFLAGS="$CPPFLAGS -I$withval"]
   )
 
   AC_ARG_WITH(openssl-lib,
-    [  --with-openssl-lib=DIR  OpenSSL library directory],
+    AC_HELP_STRING([--with-openssl-lib=DIR], [OpenSSL library directory]),
     [openssl_lib="$withval"
      LIBS="$LIBS -L$withval"]
   )
 
   AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h,
     [],
-    [AC_MSG_ERROR("OpenSSL header files not found."); break]
+    [AC_MSG_ERROR([OpenSSL header files not found.]); break]
   )
 
   CPPFLAGS="$tinc_ac_save_CPPFLAGS"
 
-  AC_CHECK_LIB(crypto, SHA1_version,
-    [LIBS="$LIBS -lcrypto"],
-    [AC_MSG_ERROR("OpenSSL libraries not found.")]
+case $host_os in
+  *mingw*)
+    AC_CHECK_LIB(crypto, SHA1_version,
+      [LIBS="$LIBS -lcrypto -lgdi32"],
+      [AC_MSG_ERROR([OpenSSL libraries not found.])]
+    )
+  ;;
+  *)
+    AC_CHECK_LIB(crypto, SHA1_version,
+      [LIBS="$LIBS -lcrypto"],
+      [AC_MSG_ERROR([OpenSSL libraries not found.])]
+    )
+
+    AC_CHECK_FUNC(dlopen,
+      [],
+      [AC_CHECK_LIB(dl, dlopen,
+        [LIBS="$LIBS -ldl"],
+        [AC_MSG_ERROR([OpenSSL depends on libdl.]); break]
+      )]
+    )
+  ;;
+esac
+
+  AC_CHECK_FUNCS([RAND_pseudo_bytes EVP_EncryptInit_ex], ,
+    [AC_MSG_ERROR([Missing OpenSSL functionality, make sure you have installed the latest version.]); break],
+  )
+
+  AC_CHECK_DECL([OpenSSL_add_all_algorithms], ,
+    [AC_MSG_ERROR([Missing OpenSSL functionality, make sure you have installed the latest version.]); break],
+    [#include <openssl/evp.h>]
   )
 ])