From: Guy Harris <guy@alum.mit.edu>
Date: Tue, 4 Feb 2020 22:42:22 +0000 (-0800)
Subject: Fix checks for libcrypto.
X-Git-Tag: tcpdump-4.99-bp~561
X-Git-Url: https://git.tcpdump.org/tcpdump/commitdiff_plain/422a74df58301a13f20d09f2337c9efe6020508b

Fix checks for libcrypto.

1) We don't need libcrypto to check for the header files, and if we say
we do, we get a lot of noise from CMake about policy CMP0075.

2) We need libcrypto, with the full path specified, for library tests;
just linking with -lcrypto might not find it, or might find another
version (thanks, Apple!).
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6550f41a..7fa6e900 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -704,9 +704,6 @@ if(WITH_CRYPTO)
         #
         # Check for some headers and functions.
         #
-        cmake_push_check_state()
-        set(CMAKE_REQUIRED_LIBRARIES crypto)
-
         check_include_file(openssl/evp.h HAVE_OPENSSL_EVP_H)
 
         #
@@ -715,6 +712,9 @@ if(WITH_CRYPTO)
         # EVP_CIPHER_CTX may be opaque; otherwise, we allocate
         # it ourselves.
         #
+        cmake_push_check_state()
+        set(CMAKE_REQUIRED_LIBRARIES "${CRYPTO_LIBRARIES}")
+
         check_function_exists(EVP_CIPHER_CTX_new HAVE_EVP_CIPHER_CTX_NEW)
 
         #