Files:
tests/test-isnan.c
tests/minus-zero.h
tests/infinity.h
tests/macros.h

Depends-on:
c99
float
nan
snan

configure.ac:
AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])

Makefile.am:
TESTS += test-isnan
check_PROGRAMS += test-isnan
test_isnan_LDADD = $(LDADD) @ISNAN_LIBM@