diff options
Diffstat (limited to 'Modules/Platform/Linux.cmake')
| -rw-r--r-- | Modules/Platform/Linux.cmake | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Modules/Platform/Linux.cmake b/Modules/Platform/Linux.cmake index 498e491..1831866 100644 --- a/Modules/Platform/Linux.cmake +++ b/Modules/Platform/Linux.cmake @@ -18,4 +18,41 @@ FOREACH(type SHARED_LIBRARY SHARED_MODULE EXE) SET(CMAKE_${type}_LINK_DYNAMIC_C_FLAGS "-Wl,-Bdynamic") ENDFOREACH(type) +# Debian policy requires that shared libraries be installed without +# executable permission. Fedora policy requires that shared libraries +# be installed with the executable permission. Since the native tools +# create shared libraries with execute permission in the first place a +# reasonable policy seems to be to install with execute permission by +# default. In order to support debian packages we provide an option +# here. The option default is based on the current distribution, but +# packagers can set it explicitly on the command line. +IF(DEFINED CMAKE_INSTALL_SO_NO_EXE) + # Store the decision variable in the cache. This preserves any + # setting the user provides on the command line. + SET(CMAKE_INSTALL_SO_NO_EXE "${CMAKE_INSTALL_SO_NO_EXE}" CACHE INTERNAL + "Install .so files without execute permission.") +ELSE(DEFINED CMAKE_INSTALL_SO_NO_EXE) + # Detect the linux distribution. + SET(CMAKE_LINUX_DISTRO) + IF(EXISTS "/proc/version") + FILE(READ "/proc/version" CMAKE_LINUX_DISTRO) + ENDIF(EXISTS "/proc/version") + + # List the distributions that require shared libraries to not have + # execute permission. + SET(CMAKE_INSTALL_SO_NO_EXE_DISTRO "(Debian|Ubuntu)") + + # Store the decision variable as an internal cache entry to avoid + # checking the platform every time. This option is advanced enough + # that only package maintainers should need to adjust it. They are + # capable of providing a setting on the command line. + IF("${CMAKE_LINUX_DISTRO}" MATCHES "${CMAKE_INSTALL_SO_NO_EXE_DISTRO}") + SET(CMAKE_INSTALL_SO_NO_EXE 1 CACHE INTERNAL + "Install .so files without execute permission.") + ELSE("${CMAKE_LINUX_DISTRO}" MATCHES "${CMAKE_INSTALL_SO_NO_EXE_DISTRO}") + SET(CMAKE_INSTALL_SO_NO_EXE 0 CACHE INTERNAL + "Install .so files without execute permission.") + ENDIF("${CMAKE_LINUX_DISTRO}" MATCHES "${CMAKE_INSTALL_SO_NO_EXE_DISTRO}") +ENDIF(DEFINED CMAKE_INSTALL_SO_NO_EXE) + INCLUDE(Platform/UnixPaths) |