Cmake: Check for OpenSSL before OpenLDAP.

OpenLDAP might have been build with OpenSSL. Checking for OpenLDAP first
may result in undefined symbols. Of course, the found OpenSSL libraries
must also be linked whenever OpenLDAP is.

1 files changed, 32 insertions, 31 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 845c330fe..694c3bc2e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -224,6 +224,36 @@ if(WIN32)
   check_library_exists_concat("winmm"  getch        HAVE_LIBWINMM)
 endif()
 
+option(CMAKE_USE_OPENSSL "Use OpenSSL code. Experimental" ON)
+mark_as_advanced(CMAKE_USE_OPENSSL)
+
+set(USE_SSLEAY OFF)
+set(USE_OPENSSL OFF)
+set(HAVE_LIBCRYPTO OFF)
+set(HAVE_LIBSSL OFF)
+
+if(CMAKE_USE_OPENSSL)
+  find_package(OpenSSL)
+  if(OPENSSL_FOUND)
+    list(APPEND CURL_LIBS ${OPENSSL_LIBRARIES})
+    set(USE_SSLEAY ON)
+    set(USE_OPENSSL ON)
+    set(HAVE_LIBCRYPTO ON)
+    set(HAVE_LIBSSL ON)
+    include_directories(${OPENSSL_INCLUDE_DIR})
+    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
+    check_include_file_concat("openssl/crypto.h" HAVE_OPENSSL_CRYPTO_H)
+    check_include_file_concat("openssl/engine.h" HAVE_OPENSSL_ENGINE_H)
+    check_include_file_concat("openssl/err.h"    HAVE_OPENSSL_ERR_H)
+    check_include_file_concat("openssl/pem.h"    HAVE_OPENSSL_PEM_H)
+    check_include_file_concat("openssl/pkcs12.h" HAVE_OPENSSL_PKCS12_H)
+    check_include_file_concat("openssl/rsa.h"    HAVE_OPENSSL_RSA_H)
+    check_include_file_concat("openssl/ssl.h"    HAVE_OPENSSL_SSL_H)
+    check_include_file_concat("openssl/x509.h"   HAVE_OPENSSL_X509_H)
+    check_include_file_concat("openssl/rand.h"   HAVE_OPENSSL_RAND_H)
+  endif()
+endif()
+
 if(NOT CURL_DISABLE_LDAP)
 
   if(WIN32)
@@ -248,6 +278,7 @@ if(NOT CURL_DISABLE_LDAP)
   # Now that we know, we're not using windows LDAP...
   if(NOT CURL_LDAP_WIN)
     # Check for LDAP
+    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_LIBRARIES})
     check_library_exists_concat(${CMAKE_LDAP_LIB} ldap_init HAVE_LIBLDAP)
     check_library_exists_concat(${CMAKE_LBER_LIB} ber_init HAVE_LIBLBER)
   else()
@@ -302,7 +333,7 @@ if(NOT CURL_DISABLE_LDAP)
       }"
     )
     set(CMAKE_REQUIRED_DEFINITIONS "-DLDAP_DEPRECATED=1" "-DWIN32_LEAN_AND_MEAN")
-    set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_LDAP_LIB})
+    list(APPEND CMAKE_REQUIRED_LIBRARIES ${CMAKE_LDAP_LIB})
     if(HAVE_LIBLBER)
       list(APPEND CMAKE_REQUIRED_LIBRARIES ${CMAKE_LBER_LIB})
     endif()
@@ -353,36 +384,6 @@ if(CURL_ZLIB)
   endif()
 endif()
 
-option(CMAKE_USE_OPENSSL "Use OpenSSL code. Experimental" ON)
-mark_as_advanced(CMAKE_USE_OPENSSL)
-
-set(USE_SSLEAY OFF)
-set(USE_OPENSSL OFF)
-set(HAVE_LIBCRYPTO OFF)
-set(HAVE_LIBSSL OFF)
-
-if(CMAKE_USE_OPENSSL)
-  find_package(OpenSSL)
-  if(OPENSSL_FOUND)
-    list(APPEND CURL_LIBS ${OPENSSL_LIBRARIES})
-    set(USE_SSLEAY ON)
-    set(USE_OPENSSL ON)
-    set(HAVE_LIBCRYPTO ON)
-    set(HAVE_LIBSSL ON)
-    include_directories(${OPENSSL_INCLUDE_DIR})
-    set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
-    check_include_file_concat("openssl/crypto.h" HAVE_OPENSSL_CRYPTO_H)
-    check_include_file_concat("openssl/engine.h" HAVE_OPENSSL_ENGINE_H)
-    check_include_file_concat("openssl/err.h"    HAVE_OPENSSL_ERR_H)
-    check_include_file_concat("openssl/pem.h"    HAVE_OPENSSL_PEM_H)
-    check_include_file_concat("openssl/pkcs12.h" HAVE_OPENSSL_PKCS12_H)
-    check_include_file_concat("openssl/rsa.h"    HAVE_OPENSSL_RSA_H)
-    check_include_file_concat("openssl/ssl.h"    HAVE_OPENSSL_SSL_H)
-    check_include_file_concat("openssl/x509.h"   HAVE_OPENSSL_X509_H)
-    check_include_file_concat("openssl/rand.h"   HAVE_OPENSSL_RAND_H)
-  endif(OPENSSL_FOUND)
-endif(CMAKE_USE_OPENSSL)
-
 #libSSH2
 option(CMAKE_USE_LIBSSH2 "Use libSSH2" ON)
 mark_as_advanced(CMAKE_USE_LIBSSH2)