diff options
Diffstat (limited to 'tool/m4/ruby_dtrace_postprocess.m4')
| -rw-r--r-- | tool/m4/ruby_dtrace_postprocess.m4 | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tool/m4/ruby_dtrace_postprocess.m4 b/tool/m4/ruby_dtrace_postprocess.m4 new file mode 100644 index 0000000000..ba5785d9dd --- /dev/null +++ b/tool/m4/ruby_dtrace_postprocess.m4 @@ -0,0 +1,29 @@ +AC_DEFUN([RUBY_DTRACE_POSTPROCESS], +[AC_CACHE_CHECK(whether $DTRACE needs post processing, rb_cv_prog_dtrace_g, +[ + rb_cv_prog_dtrace_g=no + AS_IF([{ + cat >conftest_provider.d <<_PROBES && + provider conftest { + probe fire(); + }; +_PROBES + $DTRACE ${DTRACE_OPT} -h -o conftest_provider.h -s conftest_provider.d >/dev/null 2>/dev/null && + : + }], [ + AC_TRY_COMPILE([@%:@include "conftest_provider.h"], [CONFTEST_FIRE();], [ + AS_IF([{ + cp -p conftest.${ac_objext} conftest.${ac_objext}.save && + $DTRACE ${DTRACE_OPT} -G -s conftest_provider.d conftest.${ac_objext} 2>/dev/null && + : + }], [ + AS_IF([cmp -s conftest.o conftest.${ac_objext}.save], [ + rb_cv_prog_dtrace_g=yes + ], [ + rb_cv_prog_dtrace_g=rebuild + ]) + ])]) + ]) + rm -f conftest.[co] conftest_provider.[dho] +]) +])dnl |