Openwrt/tools/cmake/patches/120-curl-fix-libressl-linking.patch
Hannu Nyman bfc433efd4 tools/cmake: update to 3.19.1
Update cmake to version 3.19.1

Release notes: https://cmake.org/cmake/help/v3.19/release/3.19.html

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
2020-12-15 20:35:00 +01:00

38 lines
1.3 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
@@ -508,6 +508,14 @@ if(CMAKE_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})