1 # GCC is the default compiler on Linux.
2 SET(CMAKE_DL_LIBS "dl")
3 SET(CMAKE_SHARED_LIBRARY_C_FLAGS "-fPIC")
4 SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-shared")
5 SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "-rdynamic")
6 SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,")
7 SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP ":")
8 SET(CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG "-Wl,-rpath-link,")
9 SET(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,")
10 SET(CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG "-Wl,-soname,")
11 SET(CMAKE_SHARED_LIBRARY_SONAME_Fortran_FLAG "-Wl,-soname,")
12 SET(CMAKE_EXE_EXPORTS_C_FLAG "-Wl,--export-dynamic")
13 SET(CMAKE_EXE_EXPORTS_CXX_FLAG "-Wl,--export-dynamic")
15 # Shared libraries with no builtin soname may not be linked safely by
16 # specifying the file path.
17 SET(CMAKE_PLATFORM_USES_PATH_WHEN_NO_SONAME 1)
19 # Initialize C link type selection flags. These flags are used when
20 # building a shared library, shared module, or executable that links
21 # to other libraries to select whether to use the static or shared
22 # versions of the libraries.
23 FOREACH(type SHARED_LIBRARY SHARED_MODULE EXE)
24 SET(CMAKE_${type}_LINK_STATIC_C_FLAGS "-Wl,-Bstatic")
25 SET(CMAKE_${type}_LINK_DYNAMIC_C_FLAGS "-Wl,-Bdynamic")
28 # Debian policy requires that shared libraries be installed without
29 # executable permission. Fedora policy requires that shared libraries
30 # be installed with the executable permission. Since the native tools
31 # create shared libraries with execute permission in the first place a
32 # reasonable policy seems to be to install with execute permission by
33 # default. In order to support debian packages we provide an option
34 # here. The option default is based on the current distribution, but
35 # packagers can set it explicitly on the command line.
36 IF(DEFINED CMAKE_INSTALL_SO_NO_EXE)
37 # Store the decision variable in the cache. This preserves any
38 # setting the user provides on the command line.
39 SET(CMAKE_INSTALL_SO_NO_EXE "${CMAKE_INSTALL_SO_NO_EXE}" CACHE INTERNAL
40 "Install .so files without execute permission.")
41 ELSE(DEFINED CMAKE_INSTALL_SO_NO_EXE)
42 # Store the decision variable as an internal cache entry to avoid
43 # checking the platform every time. This option is advanced enough
44 # that only package maintainers should need to adjust it. They are
45 # capable of providing a setting on the command line.
46 IF(EXISTS "/etc/debian_version")
47 SET(CMAKE_INSTALL_SO_NO_EXE 1 CACHE INTERNAL
48 "Install .so files without execute permission.")
49 ELSE(EXISTS "/etc/debian_version")
50 SET(CMAKE_INSTALL_SO_NO_EXE 0 CACHE INTERNAL
51 "Install .so files without execute permission.")
52 ENDIF(EXISTS "/etc/debian_version")
53 ENDIF(DEFINED CMAKE_INSTALL_SO_NO_EXE)
55 INCLUDE(Platform/UnixPaths)
57 # Debian has lib64 paths only for compatibility so they should not be
59 IF(EXISTS "/etc/debian_version")
60 SET_PROPERTY(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS FALSE)
61 ENDIF(EXISTS "/etc/debian_version")
62 # always include the gcc compiler information