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Original 10.1 patch Borrowed from Debian to make atomic detection easier
Modified for 10.3 by Brian Evans <grknight@gentoo.org>
From: Debian MySQL Maintainers <pkg-mysql-maint@lists.alioth.debian.org>
Date: Thu, 10 Aug 2017 20:40:29 +0200
Subject: c11_atomics
---
configure.cmake | 23 +++++++++++++++++++++--
mysys/CMakeLists.txt | 4 ++++
sql/CMakeLists.txt | 4 ++++
5 files changed, 46 insertions(+), 4 deletions(-)
diff --git a/configure.cmake b/configure.cmake
index 0057c7f..43ad114 100644
--- a/configure.cmake
+++ b/configure.cmake
@@ -128,7 +128,7 @@ IF(UNIX)
ENDIF()
FIND_PACKAGE(Threads)
- SET(CMAKE_REQUIRED_LIBRARIES
+ LIST(APPEND CMAKE_REQUIRED_LIBRARIES
${LIBM} ${LIBNSL} ${LIBBIND} ${LIBCRYPT} ${LIBSOCKET} ${LIBDL} ${CMAKE_THREAD_LIBS_INIT} ${LIBRT} ${LIBEXECINFO})
# Need explicit pthread for gcc -fsanitize=address
IF(CMAKE_USE_PTHREADS_INIT AND CMAKE_C_FLAGS MATCHES "-fsanitize=")
@@ -1028,7 +1028,26 @@ ELSEIF(NOT WITH_ATOMIC_OPS)
long long int *ptr= &var;
return (int)__atomic_load_n(ptr, __ATOMIC_SEQ_CST);
}"
-HAVE_GCC_C11_ATOMICS)
+HAVE_GCC_C11_ATOMICS_WITHOUT_LIBATOMIC)
+IF(HAVE_GCC_C11_ATOMICS_WITHOUT_LIBATOMIC)
+ SET(HAVE_GCC_C11_ATOMICS True)
+ELSE()
+ SET(OLD_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
+ LIST(APPEND CMAKE_REQUIRED_LIBRARIES "atomic")
+ CHECK_CXX_SOURCE_COMPILES("
+ int main()
+ {
+ long long int var= 1;
+ long long int *ptr= &var;
+ return (int)__atomic_load_n(ptr, __ATOMIC_SEQ_CST);
+ }"
+ HAVE_GCC_C11_ATOMICS_WITH_LIBATOMIC)
+ IF(HAVE_GCC_C11_ATOMICS_WITH_LIBATOMIC)
+ SET(HAVE_GCC_C11_ATOMICS True)
+ ELSE()
+ SET(CMAKE_REQUIRED_LIBRARIES ${OLD_CMAKE_REQUIRED_LIBRARIES})
+ ENDIF()
+ENDIF()
IF(WITH_VALGRIND)
SET(HAVE_valgrind 1)
diff --git a/mysys/CMakeLists.txt b/mysys/CMakeLists.txt
index eb7f75e..a9221d7 100644
--- a/mysys/CMakeLists.txt
+++ b/mysys/CMakeLists.txt
@@ -78,6 +78,10 @@ IF(HAVE_BFD_H)
TARGET_LINK_LIBRARIES(mysys bfd)
ENDIF(HAVE_BFD_H)
+IF(HAVE_GCC_C11_ATOMICS_WITH_LIBATOMIC)
+ TARGET_LINK_LIBRARIES(mysys atomic)
+ENDIF()
+
IF (WIN32)
TARGET_LINK_LIBRARIES(mysys IPHLPAPI)
ENDIF(WIN32)
diff --git a/sql/CMakeLists.txt b/sql/CMakeLists.txt
index b4acac5..8247714 100644
--- a/sql/CMakeLists.txt
+++ b/sql/CMakeLists.txt
@@ -165,6 +165,10 @@ TARGET_LINK_LIBRARIES(sql ${MYSQLD_STATIC_PLUGIN_LIBS}
${SSL_LIBRARIES}
${LIBSYSTEMD})
+IF(HAVE_GCC_C11_ATOMICS_WITH_LIBATOMIC)
+ TARGET_LINK_LIBRARIES(sql atomic)
+ENDIF()
+
IF(WIN32)
SET(MYSQLD_SOURCE main.cc nt_servc.cc message.rc)
TARGET_LINK_LIBRARIES(sql psapi)
|
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