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| author | Federico Ceratto <federico.ceratto@gmail.com> | 2017-04-30 16:09:37 +0000 |
|---|---|---|
| committer | Federico Ceratto <federico.ceratto@gmail.com> | 2017-04-30 16:09:37 +0000 |
| commit | 51f689a8e17ff3929acd2dbf39e936d2cd3ac723 (patch) | |
| tree | 92e54f543171b69dcbc639be09d11221cf96ba28 /m4 | |
| parent | New upstream version 1.5.0+dfsg (diff) | |
| download | netdata-51f689a8e17ff3929acd2dbf39e936d2cd3ac723.tar.xz netdata-51f689a8e17ff3929acd2dbf39e936d2cd3ac723.zip | |
New upstream version 1.6.0+dfsgupstream/1.6.0+dfsg
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/ax_c_lto.m4 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/m4/ax_c_lto.m4 b/m4/ax_c_lto.m4 new file mode 100644 index 000000000..7e6bc0119 --- /dev/null +++ b/m4/ax_c_lto.m4 @@ -0,0 +1,21 @@ +# AC_C_LTO +# ------------- +# Define HAVE_LTO if -flto works. +AN_IDENTIFIER([lto], [AC_C_LTO]) +AC_DEFUN([AC_C_LTO], +[AC_CACHE_CHECK([if -flto builds executables], ac_cv_c_lto, +[AC_RUN_IFELSE( + [AC_LANG_SOURCE( + [[#include <stdio.h> + int main(int argc, char **argv) { + return 0; + } + ]])], + [ac_cv_c_lto=yes], + [ac_cv_c_lto=no], + [ac_cv_c_lto=${ac_cv_c_lto_cross_compile}])]) +if test "${ac_cv_c_lto}" = "yes"; then + AC_DEFINE([HAVE_LTO], 1, + [Define to 1 if -flto works.]) +fi +])# AC_C_LTO |