| 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 |
| @@ -648,6 +648,14 @@ 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}) |
| |