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| author | Guillem Jover <guillem@debian.org> | 2016-09-07 04:56:32 +0200 |
|---|---|---|
| committer | Guillem Jover <guillem@debian.org> | 2016-10-30 06:29:50 +0100 |
| commit | 44cfbc4b31de7d3dc3c6471aeaf21768b4dc015a (patch) | |
| tree | 7717aa65ea55a8bf54b907374b41c1ab41107187 /m4 | |
| parent | ed6cbcf7a1706523580a91491adb9ecd55098f9c (diff) | |
| download | dpkg-44cfbc4b31de7d3dc3c6471aeaf21768b4dc015a.tar.gz | |
build: Pass --as-needed to the linker for dselect to avoid libstdc++
We are not really using anything from libstdc++, so let's avoid the
dependency entirely. This makes this the only frontend not to pull
in the C++ run-time.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/dpkg-linker.m4 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/m4/dpkg-linker.m4 b/m4/dpkg-linker.m4 index e068a38bf..1bb64350d 100644 --- a/m4/dpkg-linker.m4 +++ b/m4/dpkg-linker.m4 @@ -23,6 +23,25 @@ AC_DEFUN([DPKG_LINKER_OPTIMIZATIONS], [ ]) ]) +# DPKG_LINKER_AS_NEEDED +# --------------------- +AC_DEFUN([DPKG_LINKER_AS_NEEDED], [ + AC_CACHE_CHECK([for --as-needed linker flag], [dpkg_cv_linker_as_needed], [ + save_LDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -Wl,--as-needed" + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([], []) + ], [ + dpkg_cv_linker_as_needed=yes + ], [ + dpkg_cv_linker_as_needed=no + ]) + LDFLAGS="$save_LDFLAGS" + ]) + AM_CONDITIONAL([HAVE_LINKER_AS_NEEDED], + [test "x$dpkg_cv_linker_as_needed" = "xyes"]) +]) + # DPKG_LINKER_VERSION_SCRIPT # -------------------------- AC_DEFUN([DPKG_LINKER_VERSION_SCRIPT], [ |