Improve GCrypt cmake checks.

git-svn-id: svn+ssh://svn.berlios.de/svnroot/repos/libssh/trunk@751 7dcaeef0-15fb-0310-b436-a5af3365683c

CMakeLists.txt

@@ -42,9 +42,9 @@ find_package(OpenSSL)
 
 if (NOT CRYPTO_LIBRARY)
   find_package(GCrypt)
-  if (NOT GCRYPT_LIBRARY)
+  if (NOT GCRYPT_FOUND)
     message(FATAL_ERROR "Could not find OpenSSL or GCrypt")
-  endif (NOT GCRYPT_LIBRARY)
+  endif (NOT GCRYPT_FOUND)
 endif (NOT CRYPTO_LIBRARY)
 
 # config.h checks

ConfigureChecks.cmake

@@ -41,9 +41,9 @@ if (CRYPTO_LIBRARY)
   set(HAVE_LIBCRYPTO 1)
 endif (CRYPTO_LIBRARY)
 
-if (GCRYPT_LIBRARY)
+if (GCRYPT_FOUND)
   set(HAVE_LIBGCRYPT 1)
-endif (GCRYPT_LIBRARY)
+endif (GCRYPT_FOUND)
 
 if (Z_LIBRARY)
   set(HAVE_LIBZ 1)

cmake/Modules/FindGCrypt.cmake

@@ -42,7 +42,7 @@ else (GCRYPT_LIBRARIES AND GCRYPT_INCLUDE_DIRS)
   mark_as_advanced(GCRYPT_LIBRARY)
 
   if (GCRYPT_LIBRARY)
-    set(GCRYPT_FOUND TRUE)
+    set(GCRYPT_FOUND TRUE CACHE INTERNAL "Wether the gcrypt library has been found" FORCE)
   endif (GCRYPT_LIBRARY)
 
   set(GCRYPT_INCLUDE_DIRS