From 7867aaa9a01decf93711428462335be8cef70212 Mon Sep 17 00:00:00 2001
From: John Butterfield <johnb003@gmail.com>
Date: Tue, 17 Jul 2018 01:13:18 -0700
Subject: [PATCH] cmake: link curl to the OpenSSL targets instead of lib
 absolute paths

Reviewed-by: Jakub Zakrzewski
Reviewed-by: Sergei Nikulov
Closes #2753
---
 CMake/{curl-config.cmake => curl-config.cmake.in} | 5 +++++
 CMakeLists.txt                                    | 8 ++++----
 Makefile.am                                       | 2 +-
 3 files changed, 10 insertions(+), 5 deletions(-)
 rename CMake/{curl-config.cmake => curl-config.cmake.in} (93%)

diff --git a/CMake/curl-config.cmake b/CMake/curl-config.cmake.in
similarity index 93%
rename from CMake/curl-config.cmake
rename to CMake/curl-config.cmake.in
index 10045c6b76..73e04c606e 100644
--- a/CMake/curl-config.cmake
+++ b/CMake/curl-config.cmake.in
@@ -9,6 +9,11 @@ if(NOT CURL_FIND_COMPONENTS)
   endif()
 endif()
 
+include(CMakeFindDependencyMacro)
+if(CURL_FIND_REQUIRED_libcurl)
+    find_dependency(OpenSSL "@OPENSSL_VERSION_MAJOR@")
+endif()
+
 set(_curl_missing_components)
 foreach(_comp ${CURL_FIND_COMPONENTS})
   if(EXISTS "${_DIR}/${_comp}-target.cmake")
diff --git a/CMakeLists.txt b/CMakeLists.txt
index cafe983f4b..fa2fc094ec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -352,8 +352,8 @@ if(CMAKE_USE_OPENSSL)
   set(USE_OPENSSL ON)
   set(HAVE_LIBCRYPTO ON)
   set(HAVE_LIBSSL ON)
-  list(APPEND CURL_LIBS ${OPENSSL_LIBRARIES})
-  include_directories(${OPENSSL_INCLUDE_DIR})
+  list(APPEND CURL_LIBS OpenSSL::SSL OpenSSL::Crypto)
+
   set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
   check_include_file("openssl/crypto.h" HAVE_OPENSSL_CRYPTO_H)
   check_include_file("openssl/err.h"    HAVE_OPENSSL_ERR_H)
@@ -1308,9 +1308,9 @@ write_basic_package_version_file(
     COMPATIBILITY SameMajorVersion
 )
 
-configure_file(CMake/curl-config.cmake
+configure_file(CMake/curl-config.cmake.in
         "${PROJECT_BINARY_DIR}/curl-config.cmake"
-        COPYONLY
+        @ONLY
 )
 
 install(
diff --git a/Makefile.am b/Makefile.am
index bf6bfa987a..959eeb5314 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -31,7 +31,7 @@ CMAKE_DIST = CMakeLists.txt CMake/CMakeConfigurableFile.in      \
  CMake/CurlSymbolHiding.cmake CMake/FindCARES.cmake             \
  CMake/FindLibSSH2.cmake CMake/FindNGHTTP2.cmake                \
  CMake/FindMbedTLS.cmake CMake/cmake_uninstall.cmake.in         \
- CMake/curl-config.cmake
+ CMake/curl-config.cmake.in
 
 VC6_LIBTMPL = projects/Windows/VC6/lib/libcurl.tmpl
 VC6_LIBDSP = projects/Windows/VC6/lib/libcurl.dsp.dist