Alpine3D

Alpine3D Svn Source Tree

Root/trunk/tools/cmake/ResolveCompilerPaths.cmake

1# ResolveCompilerPaths - this module defines two macros
2#
3# RESOLVE_LIBRARIES (XXX_LIBRARIES LINK_LINE)
4# This macro is intended to be used by FindXXX.cmake modules.
5# It parses a compiler link line and resolves all libraries
6# (-lfoo) using the library path contexts (-L/path) in scope.
7# The result in XXX_LIBRARIES is the list of fully resolved libs.
8# Example:
9#
10# RESOLVE_LIBRARIES (FOO_LIBRARIES "-L/A -la -L/B -lb -lc -ld")
11#
12# will be resolved to
13#
14# FOO_LIBRARIES:STRING="/A/liba.so;/B/libb.so;/A/libc.so;/usr/lib/libd.so"
15#
16# if the filesystem looks like
17#
18# /A: liba.so libc.so
19# /B: liba.so libb.so
20# /usr/lib: liba.so libb.so libc.so libd.so
21#
22# and /usr/lib is a system directory.
23#
24# Note: If RESOLVE_LIBRARIES() resolves a link line differently from
25# the native linker, there is a bug in this macro (please report it).
26#
27# RESOLVE_INCLUDES (XXX_INCLUDES INCLUDE_LINE)
28# This macro is intended to be used by FindXXX.cmake modules.
29# It parses a compile line and resolves all includes
30# (-I/path/to/include) to a list of directories. Other flags are ignored.
31# Example:
32#
33# RESOLVE_INCLUDES (FOO_INCLUDES "-I/A -DBAR='\"irrelevant -I/string here\"' -I/B")
34#
35# will be resolved to
36#
37# FOO_INCLUDES:STRING="/A;/B"
38#
39# assuming both directories exist.
40# Note: as currently implemented, the -I/string will be picked up mistakenly (cry, cry)
41include (CorrectWindowsPaths)
42
43macro (RESOLVE_LIBRARIES LIBS LINK_LINE)
44 string (REGEX MATCHALL "((-L|-l|-Wl)([^\" ]+|\"[^\"]+\")|[^\" ]+\\.(a|so|dll|lib))" _all_tokens "${LINK_LINE}")
45 set (_libs_found)
46 set (_directory_list)
47 foreach (token ${_all_tokens})
48 if (token MATCHES "-L([^\" ]+|\"[^\"]+\")")
49 # If it's a library path, add it to the list
50 string (REGEX REPLACE "^-L" "" token ${token})
51 string (REGEX REPLACE "//" "/" token ${token})
52 convert_cygwin_path(token)
53 list (APPEND _directory_list ${token})
54 elseif (token MATCHES "^(-l([^\" ]+|\"[^\"]+\")|[^\" ]+\\.(a|so|dll|lib))")
55 # It's a library, resolve the path by looking in the list and then (by default) in system directories
56 if (WIN32) #windows expects "libfoo", linux expects "foo"
57 string (REGEX REPLACE "^-l" "lib" token ${token})
58 else (WIN32)
59 string (REGEX REPLACE "^-l" "" token ${token})
60 endif (WIN32)
61 set (_root)
62 if (token MATCHES "^/")# We have an absolute path
63 #separate into a path and a library name:
64 string (REGEX MATCH "[^/]*\\.(a|so|dll|lib)$" libname ${token})
65 string (REGEX MATCH ".*[^${libname}$]" libpath ${token})
66 convert_cygwin_path(libpath)
67 set (_directory_list ${_directory_list} ${libpath})
68 set (token ${libname})
69 endif (token MATCHES "^/")
70 set (_lib "NOTFOUND" CACHE FILEPATH "Cleared" FORCE)
71 find_library (_lib ${token} HINTS ${_directory_list} ${_root})
72 if (_lib)
73string (REPLACE "//" "/" _lib ${_lib})
74 list (APPEND _libs_found ${_lib})
75 else (_lib)
76 message (STATUS "Unable to find library ${token}")
77 endif (_lib)
78 endif (token MATCHES "-L([^\" ]+|\"[^\"]+\")")
79 endforeach (token)
80 set (_lib "NOTFOUND" CACHE INTERNAL "Scratch variable" FORCE)
81 # only the LAST occurence of each library is required since there should be no circular dependencies
82 if (_libs_found)
83 list (REVERSE _libs_found)
84 list (REMOVE_DUPLICATES _libs_found)
85 list (REVERSE _libs_found)
86 endif (_libs_found)
87 set (${LIBS} "${_libs_found}")
88endmacro (RESOLVE_LIBRARIES)
89
90macro (RESOLVE_INCLUDES INCS COMPILE_LINE)
91 string (REGEX MATCHALL "-I([^\" ]+|\"[^\"]+\")" _all_tokens "${COMPILE_LINE}")
92 set (_incs_found)
93 foreach (token ${_all_tokens})
94 string (REGEX REPLACE "^-I" "" token ${token})
95 string (REGEX REPLACE "//" "/" token ${token})
96 convert_cygwin_path(token)
97 if (EXISTS ${token})
98 list (APPEND _incs_found ${token})
99 else (EXISTS ${token})
100 message (STATUS "Include directory ${token} does not exist")
101 endif (EXISTS ${token})
102 endforeach (token)
103 list (REMOVE_DUPLICATES _incs_found)
104 set (${INCS} "${_incs_found}")
105endmacro (RESOLVE_INCLUDES)

Archive Download this file

Revision: HEAD