openwrtv4/tools/cmake/patches/140-curl-fix-libressl-linking.patch
Hannu Nyman 1a0d52a733 tools/cmake: update to 3.8.1
* update cmake to 3.8.1
* refresh patches

Release notes:
https://cmake.org/cmake/help/v3.8/release/3.8.html

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
2017-05-25 19:01:07 +02:00

32 lines
1.2 KiB
Diff

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
@@ -374,6 +374,10 @@ set(HAVE_LIBSSL OFF)
if(CMAKE_USE_OPENSSL)
find_package(OpenSSL)
if(OPENSSL_FOUND)
+ check_library_exists("rt" clock_gettime "" HAVE_LIBRT)
+ if(HAVE_LIBRT)
+ list(APPEND OPENSSL_LIBRARIES rt)
+ endif()
list(APPEND CURL_LIBS ${OPENSSL_LIBRARIES})
set(USE_OPENSSL ON)
set(HAVE_LIBCRYPTO ON)