apenwarr-redo/redoconf/rc/libm.rc.od
Avery Pennarun 1a3c11f220 redoconf: a stub rc_include() now sources ./redoconf.rc automatically.
This lets us remove the awkward ". ./redoconf.rc" line from zillions
of .od scripts, without paying the price of *always* including that
whole file every time default.do.sh is used.
2019-03-02 04:24:58 -05:00

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Text

rc_include rc/CC.rc rc/pkg-config.rc
prog='
#include <math.h>
int x = FP_NORMAL;
volatile float y;
void f() { y = sin(y); }
'
rc_pkg_detect LIBM libm \
rc_compile cc link "$prog"
if [ -z "$HAVE_LIBM" ]; then
rc_undo
rc_replaceln HAVE_LIBM 1
rc_appendln LIBM "-lm"
appendln LIBS "$LIBM"
if ! rc_compile cc link "$prog"; then
rc_undo
rc_replaceln HAVE_LIBM ""
rc_replaceln LIBM ""
fi
fi
rc_save