diff options
Diffstat (limited to 'Modules/Platform/GNU.cmake')
| -rw-r--r-- | Modules/Platform/GNU.cmake | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Modules/Platform/GNU.cmake b/Modules/Platform/GNU.cmake index e8c3b65..fac29a8 100644 --- a/Modules/Platform/GNU.cmake +++ b/Modules/Platform/GNU.cmake @@ -8,6 +8,33 @@ set(CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG "-Wl,-rpath-link,") set(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,") set(CMAKE_EXE_EXPORTS_C_FLAG "-Wl,--export-dynamic") +# 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() + # 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(EXISTS "/etc/debian_version") + set(CMAKE_INSTALL_SO_NO_EXE 1 CACHE INTERNAL + "Install .so files without execute permission.") + else() + set(CMAKE_INSTALL_SO_NO_EXE 0 CACHE INTERNAL + "Install .so files without execute permission.") + endif() +endif() + set(CMAKE_LIBRARY_ARCHITECTURE_REGEX "[a-z0-9_]+(-[a-z0-9_]+)?-gnu[a-z0-9_]*") include(Platform/UnixPaths) |