rheolef-config1rheolef

Examples

The following command returns the Rheolef libraries directory:

  rheolef-config --libdir

An environment sanity check writes:

  rheolef-config --check

Overview

This command is useful when linking executables with Rheolef: libraries locations are required by the link editor. Such directories are defined while configuring Rheolef, before to compile and install. The rheolef-config command returns these settings.

Note that rheolef-config could be used in Makefiles for the determination of linker flags.

Another useful feature is the --check option. When Rheolef is installed in a user directory, i.e. not as root, the sane run-time environment depends upon two environment variables. The first one is the PATH: bindir directory may be present in PATH. The second environment variable is related to shared libraries, and its name is system-dependent, e.g. LD_LIBRARY_PATH on most platforms and SHLIB_PATH on HP-UX. Its content may contains bindir.

  rheolef-config --shlibpath-var

Since it is a common mistake to have incorrect values for these variable, for novice users or for adanced ones, especially when dealing with several installed versions, the environment sanity check writes:

  rheolef-config --check

If there is mistakes, a hint is suggested to fix it and the return status is 1. Instead, the return status is 0.

Options

--version

Rheolef version.

--help

print option summary and exit.

--prefix

install architecture-independent files location.

--exec-prefix

architecture-dependent files location.

--includedir

include header directory.

--bindir

executables directory.

--mandir

man documentation directory.

--libdir

object code libraries directory.

--datadir
--datarootdir

read-only architecture-independent data location.

--pkgdatadir

read-only architecture-independent data location; specific for package.

--cxx

compiler invocation (e.g. g++ or clang++).

--includes

include compiler flags.

--libs

library compiler flags.

--shlibpath-var

the shared library path variable.

--library-interface-version

the library interface version.

--hardcode-libdir-flag-spec

flag to hardcode a libdir into a binary during linking.

--is-distributed

true or false: whether it is the distributed version.

--float

returns the rheolef Float type. Float is double by default. It could also be an extended arithmetic precision type as dd_real (quadruple precision or qd_real (octuple precision), depending on the configure option at compile time.

--have-old-code
--have-new-code

true or false: whether it is the new/old code branch that is installed.