diff options
Diffstat (limited to 'cmake/os/Linux.cmake')
| -rw-r--r-- | cmake/os/Linux.cmake | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cmake/os/Linux.cmake b/cmake/os/Linux.cmake new file mode 100644 index 00000000..0ce48cc2 --- /dev/null +++ b/cmake/os/Linux.cmake @@ -0,0 +1,42 @@ + +# Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; version 2 of the License. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA + +# This file includes Linux specific options and quirks, related to system checks + +INCLUDE(CheckSymbolExists) + +# Something that needs to be set on legacy reasons +SET(TARGET_OS_LINUX 1) +SET(_GNU_SOURCE 1) +SET(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} -D_GNU_SOURCE=1) + +# Fix CMake (< 2.8) flags. -rdynamic exports too many symbols. +FOREACH(LANG C CXX) + STRING(REPLACE "-rdynamic" "" + CMAKE_SHARED_LIBRARY_LINK_${LANG}_FLAGS + "${CMAKE_SHARED_LIBRARY_LINK_${LANG}_FLAGS}" + ) +ENDFOREACH() + +# Ensure we have clean build for shared libraries +# without unresolved symbols +# Not supported with the clang sanitizers +IF(NOT WITH_ASAN AND NOT WITH_TSAN AND NOT WITH_UBSAN) + SET(LINK_FLAG_NO_UNDEFINED "-Wl,--no-undefined") +ENDIF() + +# 64 bit file offset support flag +SET(_FILE_OFFSET_BITS 64) |