Avoid -lgcc for heap profiling if unwind.h is missing.

This removes an unneeded library dependency when falling back to
intrinsics-based backtracing (or failing to enable heap profiling at
all).
This commit is contained in:
Jason Evans 2017-02-18 00:02:23 -08:00
parent 54269dc0ed
commit 664ef652d9

View File

@ -1082,7 +1082,9 @@ fi
if test "x$backtrace_method" = "x" -a "x$enable_prof_libgcc" = "x1" \ if test "x$backtrace_method" = "x" -a "x$enable_prof_libgcc" = "x1" \
-a "x$GCC" = "xyes" ; then -a "x$GCC" = "xyes" ; then
AC_CHECK_HEADERS([unwind.h], , [enable_prof_libgcc="0"]) AC_CHECK_HEADERS([unwind.h], , [enable_prof_libgcc="0"])
if test "x${enable_prof_libgcc}" = "x1" ; then
AC_CHECK_LIB([gcc], [_Unwind_Backtrace], [JE_APPEND_VS(LIBS, -lgcc)], [enable_prof_libgcc="0"]) AC_CHECK_LIB([gcc], [_Unwind_Backtrace], [JE_APPEND_VS(LIBS, -lgcc)], [enable_prof_libgcc="0"])
fi
if test "x${enable_prof_libgcc}" = "x1" ; then if test "x${enable_prof_libgcc}" = "x1" ; then
backtrace_method="libgcc" backtrace_method="libgcc"
AC_DEFINE([JEMALLOC_PROF_LIBGCC], [ ]) AC_DEFINE([JEMALLOC_PROF_LIBGCC], [ ])