diff options
Diffstat (limited to 'README.EXT')
| -rw-r--r-- | README.EXT | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/README.EXT b/README.EXT index a0e7a38904..c8c9342e16 100644 --- a/README.EXT +++ b/README.EXT @@ -750,9 +750,23 @@ need to put at the top of the file. You can use the functions below to check various conditions. - have_library(lib, func): check whether library containing function exists. - have_func(func, header): check whether function exists - have_header(header): check whether header file exists + have_macro(macro[, headers[, opt]]): check whether macro is defined + have_library(lib[, func[, headers[, opt]]]): check whether library containing function exists + find_library(lib[, func, *paths]): find library from paths + have_func(func[, headers[, opt]): check whether function exists + have_var(var[, headers[, opt]]): check whether variable exists + have_header(header[, preheaders[, opt]]): check whether header file exists + find_header(header, *paths): find header from paths + have_framework(fw): check whether framework exists (for MacOS X) + have_struct_member(type, member[, headers]): check whether struct has member + have_type(type[, headers[, opt]]): check whether type exists + find_type(type, opt, *headers): check whether type exists in headers + have_const(const[, headers[, opt]]): check whether constant is defined + check_sizeof(type[, headers[, opts]]): check size of type + check_signedness(type[, headers[, opts]]): check signedness of type + convertible_int(type[, headers[, opts]]): find convertible integer type + find_executable(bin[, path]): find excutable file path + create_header(header): generate configured header create_makefile(target): generate Makefile The value of the variables below will affect the Makefile. @@ -1379,12 +1393,12 @@ Appendix C. Functions Available in extconf.rb These functions are available in extconf.rb: - have_macro(macro, headers) + have_macro(macro, headers, opt) Checks whether macro is defined with header. Returns true if the macro is defined. - have_library(lib, func) + have_library(lib, func, opt) Checks whether the library exists, containing the specified function. Returns true if the library exists. @@ -1394,19 +1408,23 @@ Returns true if the library exists. Checks whether a library which contains the specified function exists in path. Returns true if the library exists. - have_func(func, header) + have_func(func, headers, opt) Checks whether func exists with header. Returns true if the function exists. To check functions in an additional library, you need to check that library first using have_library(). +The func shall be either mere function name or function name with +arguments. +Example: + have_func("LONG2NUM(0)") - have_var(var, header) + have_var(var, header, opt) Checks whether var exists with header. Returns true if the variable exists. To check variables in an additional library, you need to check that library first using have_library(). - have_header(header) + have_header(header, preheaders, opt) Checks whether header exists. Returns true if the header file exists. @@ -1415,12 +1433,12 @@ Checks whether header exists. Returns true if the header file exists. Checks whether header exists in path. Returns true if the header file exists. - have_struct_member(type, member, header) + have_struct_member(type, member, headers, opt) Checks whether type has member with header. Returns true if the type is defined and has the member. - have_type(type, header, opt) + have_type(type, headers, opt) Checks whether type is defined with header. Returns true if the type is defined. |