X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=m4%2Fopenssl.m4;h=8d4a24bf6586854f7e18e3181b513f21767d0221;hp=d9f8e1634d490d52da569b7e1c9b0d4d9ccd41f1;hb=6e6b037ef4fd9877aeb1d947da7364409fa8cbb7;hpb=9391efe4e88077723840a7c085388ba2765ca17c

diff --git a/m4/openssl.m4 b/m4/openssl.m4
index d9f8e163..8d4a24bf 100644
--- a/m4/openssl.m4
+++ b/m4/openssl.m4
@@ -1,39 +1,60 @@
 dnl Check to find the OpenSSL headers/libraries
 
-AC_DEFUN(tinc_OPENSSL,
+AC_DEFUN([tinc_OPENSSL],
 [
-  tinc_ac_save_CPPFLAGS="$CPPFLAGS"
+  AC_ARG_WITH(openssl,
+    AS_HELP_STRING([--with-openssl=DIR], [OpenSSL base directory, or:]),
+    [openssl="$withval"
+     CPPFLAGS="$CPPFLAGS -I$withval/include"
+     LDFLAGS="$LDFLAGS -L$withval/lib"]
+  )
 
   AC_ARG_WITH(openssl-include,
-    [  --with-openssl-include=DIR  OpenSSL headers directory (without trailing /openssl)],
+    AS_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],
+    AS_HELP_STRING([--with-openssl-lib=DIR], [OpenSSL library directory]),
     [openssl_lib="$withval"
-     LIBS="$LIBS -L$withval"]
+     LDFLAGS="$LDFLAGS -L$withval"]
   )
 
-  AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h,
+  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("OpenSSL header files not found."); break]
+    [AC_MSG_ERROR([OpenSSL header files not found.]); break]
   )
 
-  CPPFLAGS="$tinc_ac_save_CPPFLAGS"
+case $host_os in
+  *mingw*)
+    AC_CHECK_LIB(crypto, EVP_EncryptInit_ex,
+      [LIBS="$LIBS -lcrypto -lgdi32 -lcrypt32"],
+      [AC_MSG_ERROR([OpenSSL libraries not found.])]
+    )
+  ;;
+  *)
+    AC_CHECK_LIB(crypto, EVP_EncryptInit_ex,
+      [LIBS="$LIBS -lcrypto"],
+      [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_FUNC(dlopen,
-    [],
-    AC_CHECK_LIB(dl, dlopen,
-      [LIBS="$LIBS -ldl"],
-      [AC_MSG_ERROR("OpenSSL depends on libdl.")]
-    )
+  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>]
   )
 ])