Files:
tests/test-isnanl.c
tests/test-isnanl.h
tests/minus-zero.h
tests/infinity.h
tests/nan.h
tests/macros.h
m4/exponentl.m4

Depends-on:
float

configure.ac:
gl_LONG_DOUBLE_EXPONENT_LOCATION
AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])

Makefile.am:
TESTS += test-isnanl
check_PROGRAMS += test-isnanl
test_isnanl_LDADD = $(LDADD) @ISNANL_LIBM@