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@@ -0,0 +1,93 @@ +NAME + librarian - Return flags for compiling against libraries + +SYNOPSIS + librarian [OPTION]... [--] [VARIABLE]... [LIBRARY]... + +DESCRIPTION + librarian is used to print flags required when compiling + or linking, and want to use library that requires + non-trival flags. + + librarian shall output the flags, required by the + selected libraries, LIBRARY, that are listed under the + selected variables, VARIABLE. + + LIBRARY can either be the name of the required library, + the name of the required library and a version of said + library, or the name of the required library and an + accepted version range of said library. If the same + library name is used more than once, the versions and + version ranges are unioned. + + The are not predefined values for VARIABLE, but the + standardised ones are: + + CFLAGS Flags required by the compiler to compile + the if the library LIBRARY is used. The + library is a C library. + + CPPFLAGS Flags required by the C preprocessor to + compile the if the library LIBRARY is used. + + LDFLAGS Flags required by the linker to link the + program when the library LIBRARY is used. + + CXXFLAGS Flags required by the compiler to compile + the if the library LIBRARY is used. The + library is a C++ library. + + deps Libraries the library LIBRARY is dependent + on. Flags from these libraries should not + appear in the other variables unless the + library LIBRARY requires them directly. + + All variables should be in upper case unless they are + reserved. In the latter case, the are lower cased. + + If VARIABLE is omitted, the process will exit with the + value 0 if all listed libraries, LIBRARY, are available, + and otherwise exit with the value 2. + + librarian files should be stored in PREFIX/share/librarian/. + Its filename should be the name of the library, followed + by an = (equals-sign) and the version number. + + Empty lines and lines starting with a # (she) in a + librarian files is ignored. Other lines should begin + with a variable name and be followed by the required + flags relevant to that variable. For the variable deps, + libraries that the library requires should be listed + in the same format the LIBRARY argument uses. + +OPTIONS + -d Add output for dependencies too. + Should be used for LDFLAGS when linking + statically. + + -l Print the location of the files specified by + LIBRARY. + + -o Prefer older libraries, when multiple versions + are available. + +ENVIRONMENT + LIBRARIAN_PATH + Colon separated list of directories to search + for librarian files. + +EXIT VALUE + 0 Program was successful. + + 1 An error occurred. + + 2 A library was not found. + + 3 Usage error. + +RATIONALE + pkg-config(1) sucks. + +SEE ALSO + pkg-config(1) + |