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| author | Michal Klocek <michal.klocek@qt.io> | 2019-01-17 15:39:32 +0100 |
|---|---|---|
| committer | Liang Qi <liang.qi@qt.io> | 2019-02-06 22:11:22 +0000 |
| commit | 7910dd0a548cdd9e7c5716d4f6704b3185fa34fb (patch) | |
| tree | ebed8bfe3f4a187e3dbb8d42dc47ba01ff05d921 /mkspecs/features/qt_configure.prf | |
| parent | 5133e22ae200eb3c5169340a16b419c9fce747cb (diff) | |
Add llvm linker detection to configure
https://gcc.gnu.org/ml/gcc-patches/2018-10/msg01240.html
This is currently only used for webengine, where link time really matters.
New configure options:
* force 'lld' '-linker lld' or' --linker=lld'
* force 'gold' '-linker gold' or '--linker=gold'
* force 'bfd' '-linker bfd' or '--linker=bfd'
Note before by default gold was always forced (if supported) now default linker
is system default one.
[ChangeLog][Tools][configure & build system] Added --linker=[bfg,lld,gold] configure flag.
Change-Id: Idaa13510da70243c6176b96db846d629cd65c7af
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Diffstat (limited to 'mkspecs/features/qt_configure.prf')
| -rw-r--r-- | mkspecs/features/qt_configure.prf | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mkspecs/features/qt_configure.prf b/mkspecs/features/qt_configure.prf index c45439c3ef..f682892abe 100644 --- a/mkspecs/features/qt_configure.prf +++ b/mkspecs/features/qt_configure.prf @@ -368,8 +368,12 @@ defineTest(qtConfTest_compilerSupportsFlag) { defineTest(qtConfTest_linkerSupportsFlag) { flag = $$eval($${1}.flag) + use_bfd_linker: \ + LFLAGS = -fuse-ld=bfd use_gold_linker: \ LFLAGS = -fuse-ld=gold + use_lld_linker: \ + LFLAGS = -fuse-ld=lld return($$qtConfToolchainSupportsFlag($$LFLAGS "-Wl,$$flag")) } @@ -1220,8 +1224,12 @@ defineTest(qtConfTest_compile) { else: \ qmake_configs = "static" + use_bfd_linker: \ + qmake_configs += "use_bfd_linker" use_gold_linker: \ qmake_configs += "use_gold_linker" + use_lld_linker: \ + qmake_configs += "use_lld_linker" # disable warnings from the builds, since they're just noise at this point. qmake_configs += "warn_off" |