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| author | Michael Hirsch, Ph.D <10931741+scivision@users.noreply.github.com> | 2019-05-02 16:26:51 -0400 |
|---|---|---|
| committer | Jussi Pakkanen <jpakkane@gmail.com> | 2019-05-02 23:26:51 +0300 |
| commit | 06bfc2dab61c5bf79265a8db777b02732ee86ecf (patch) | |
| tree | 0ed6065a804d972c950826b86e1241ed86b759ce /docs | |
| parent | 16463046b10818910da72d892d53663496179606 (diff) | |
| download | meson-06bfc2dab61c5bf79265a8db777b02732ee86ecf.zip meson-06bfc2dab61c5bf79265a8db777b02732ee86ecf.tar.gz meson-06bfc2dab61c5bf79265a8db777b02732ee86ecf.tar.bz2 | |
per-target manual specification of link_language
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/markdown/Reference-manual.md | 4 | ||||
| -rw-r--r-- | docs/markdown/snippets/link_language.md | 10 |
2 files changed, 13 insertions, 1 deletions
diff --git a/docs/markdown/Reference-manual.md b/docs/markdown/Reference-manual.md index 056612d..d86d825 100644 --- a/docs/markdown/Reference-manual.md +++ b/docs/markdown/Reference-manual.md @@ -518,6 +518,8 @@ be passed to [shared and static libraries](#library). depends on such as a symbol visibility map. The purpose is to automatically trigger a re-link (but not a re-compile) of the target when this file changes. +- `link_language` since 0.51.0 makes the linker for this target + be for the specified language. This is helpful for multi-language targets. - `link_whole` links all contents of the given static libraries whether they are used by not, equivalent to the `-Wl,--whole-archive` argument flag of GCC, available since 0.40.0. @@ -568,7 +570,7 @@ be passed to [shared and static libraries](#library). the keyword argument for the default behaviour. - `override_options` takes an array of strings in the same format as `project`'s `default_options` overriding the values of these options - for this target only, since 0.40.0 + for this target only, since 0.40.0. - `gnu_symbol_visibility` specifies how symbols should be exported, see e.g [the GCC Wiki](https://gcc.gnu.org/wiki/Visibility) for more information. This value can either be an empty string or one of diff --git a/docs/markdown/snippets/link_language.md b/docs/markdown/snippets/link_language.md new file mode 100644 index 0000000..28ebe8b --- /dev/null +++ b/docs/markdown/snippets/link_language.md @@ -0,0 +1,10 @@ +## New target keyword argument: `link_language` +There may be situations for which the user wishes to manually specify the linking language. +For example, a C++ target may link C, Fortran, etc. and perhaps the automatic detection in Meson does not pick the desired compiler. +The user can manually choose the linker by language per-target like this example of a target where one wishes to link with the Fortran compiler: +```meson +executable(..., link_language : 'fortran') +``` + +A specific case this option fixes is where for example the main program is Fortran that calls C and/or C++ code. +The automatic language detection of Meson prioritizes C/C++, and so an compile-time error results like `undefined reference to main`, because the linker is C or C++ instead of Fortran, which is fixed by this per-target override. |