diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index f27c61f..a9d7511 100644 --- a/configure.ac +++ b/configure.ac @@ -494,6 +494,15 @@ AC_SUBST([ARFLAGS]) AC_SUBST([AROUT]) AC_SUBST([CC_MM]) +dnl Determine whether libm must be linked to use e.g. log(3). +AC_SEARCH_LIBS([log], [m], , [AC_MSG_ERROR([Missing math functions])]) +if test "x$ac_cv_search_log" != "xnone required" ; then + LM="$ac_cv_search_log" +else + LM= +fi +AC_SUBST(LM) + JE_COMPILABLE([__attribute__ syntax], [static __attribute__((unused)) void foo(void){}], [], @@ -940,9 +949,9 @@ fi AC_MSG_CHECKING([configured backtracing method]) AC_MSG_RESULT([$backtrace_method]) if test "x$enable_prof" = "x1" ; then - if test "x$abi" != "xpecoff"; then - dnl Heap profiling uses the log(3) function. - LIBS="$LIBS -lm" + dnl Heap profiling uses the log(3) function. + if test "x$LM" != "x" ; then + LIBS="$LIBS $LM" fi AC_DEFINE([JEMALLOC_PROF], [ ]) |