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authorMattias Andrée <maandree@operamail.com>2015-12-02 19:41:31 +0100
committerMattias Andrée <maandree@operamail.com>2015-12-02 19:41:31 +0100
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Signed-off-by: Mattias Andrée <maandree@operamail.com>
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+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)
+