diff options
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 663aaef..65d3671 100644 --- a/configure.ac +++ b/configure.ac @@ -79,6 +79,14 @@ case ${host_os} in esac AM_CONDITIONAL(WIN32, test x$win32 = xtrue) +# Check if we need libm for fmin +AC_CACHE_CHECK(if fmin is a builtin function, ac_cv_fmin_builtin, + AC_TRY_COMPILE([ + #include <math.h> + ], [ + fmin(0.1f, 0.2f); + ], ac_cv_fmin_builtin=yes, ac_cv_fmin_builtin=no)) + # Check if struct tm has a tm_gmtoff member AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff, AC_TRY_COMPILE([ @@ -139,6 +147,10 @@ AM_CONDITIONAL([HAVE_CYTHON],[test "x$cython_python_bindings" = "xyes"]) AS_COMPILER_FLAGS(GLOBAL_CFLAGS, "-Wall -Wextra -Wredundant-decls -Wshadow -Wpointer-arith -Wwrite-strings -Wswitch-default -Wno-unused-parameter -Wno-strict-aliasing -fvisibility=hidden $PTHREAD_CFLAGS") GLOBAL_LDFLAGS="$PTHREAD_LIBS" +if test "x$ac_cv_fmin_builtin" != "xyes"; then + GLOBAL_LDFLAGS+=" -lm" +fi + AC_ARG_ENABLE(debug, AS_HELP_STRING([--enable-debug], [enable debugging, default: no]), |