Initial commit

tools/cmake/patches/120-curl-fix-libressl-linking.patch

@@ -0,0 +1,37 @@
+From: Jo-Philipp Wich <jo@mein.io>
+Date: Wed, 11 Jan 2017 03:36:04 +0100
+Subject: [PATCH] cmcurl: link librt
+
+When cmake is linked against LibreSSL, there might be an indirect
+dependency on librt on certain systems if LibreSSL's libcrypto uses
+clock_gettime() from librt:
+
+    [ 28%] Linking C executable LIBCURL
+    .../lib/libcrypto.a(getentropy_linux.o): In function `getentropy_fallback':
+    getentropy_linux.c:(.text+0x16d): undefined reference to `clock_gettime'
+    getentropy_linux.c:(.text+0x412): undefined reference to `clock_gettime'
+    collect2: error: ld returned 1 exit status
+    make[5]: *** [Utilities/cmcurl/LIBCURL] Error 1
+
+Modify the cmcurl CMakeLists.txt to check for clock_gettime() in librt
+and unconditionally link the rt library when the symbol is found.
+
+Signed-off-by: Jo-Philipp Wich <jo@mein.io>
+---
+--- a/Utilities/cmcurl/CMakeLists.txt
++++ b/Utilities/cmcurl/CMakeLists.txt
+@@ -647,6 +647,14 @@ if(CURL_USE_OPENSSL)
+   endif()
+   set(SSL_ENABLED ON)
+   set(USE_OPENSSL ON)
++  check_library_exists("rt" clock_gettime "" HAVE_LIBRT)
++  if(HAVE_LIBRT)
++    list(APPEND OPENSSL_LIBRARIES rt)
++  endif()
++  check_library_exists("pthread" pthread_once "" HAVE_PTHREAD)
++  if(HAVE_PTHREAD)
++    list(APPEND OPENSSL_LIBRARIES pthread)
++  endif()
+   list(APPEND CURL_LIBS ${OPENSSL_LIBRARIES})
+   include_directories(${OPENSSL_INCLUDE_DIR})
+