update ULPs for s390 (#187)

test: update ulps for yn

Ref: https://github.com/JuliaLang/openlibm/pull/164#issuecomment-327993928

test: append $(CFLAGS_add), which includes fno-builtin

Allow building on DragonFly BSD (#167)

Set the RPATH for the test binaries on FreeBSD (#161)

Cleanup `ARCH` handling, reorganize `AArch64` and `Make.inc`.

* Previously, behavior differed if the same value of `ARCH` was defined
within `Make.inc` or defined on the command line. Don't do th

Cleanup `ARCH` handling, reorganize `AArch64` and `Make.inc`.

* Previously, behavior differed if the same value of `ARCH` was defined
within `Make.inc` or defined on the command line. Don't do that.

* Provide saner defaults for `ARCH` and `MARCH`, and more importantly,
allow for the proper overriding of both.

* Split `AArch64` code further away from the other `arm` code.

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Use `__clang__` as identifying mark of `clang` insted of `USECLANG`

Bump `ulp` limits higher for Travis tests

Remove floating-point exception checks when compiling with `clang`

Modify Openlibm maximum ulp definitions for clang

Revert "Add -fno-builtin to the tests as well."

This reverts commit f7a18b519dc6ba654fce73fdfb554d7781c18733.

Add -fno-builtin to the tests as well.

work around optimisation bugs for rint

Remove superfluous compiler flags for tests

-O2 is the default, and -g should be set in CFLAGS if needed.

Import these fixes from upstream.

https://github.com/freebsd/freebsd/blob/0563b7a42b5b5f9ab2af93daf62bfed48fb84e55/lib/msun/src/e_j0f.c

Fix test build on OS X.

Revert "Remove [jy][01n]f(). X/Open only standardizes the double versions."

This reverts commit 8c8693cf7962be7b0e53c491287aeb2fb13ae6f2.

Test shared library

Add make check target that builds and runs the tests.

Fix missing buildflags
Debian's blhc (build log hardening check) reports dpkg-buildflags-missing CPPFLAGS 48 (of 223), CFLAGS 2 (of 177), LDFLAGS 2 (of 3) missing

Add support for cross compiling with ARCH=name

This is rather basic. A clean is needed to get rid of artifacts from
previous runs with other architectures.

Note this requires PR #88 to work because

Add support for cross compiling with ARCH=name

This is rather basic. A clean is needed to get rid of artifacts from
previous runs with other architectures.

Note this requires PR #88 to work because without it x86 is broken.

Closes #89

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Remove floating point stack checks in tests

There is no guarantee that the FP stack is preserved, and apparently
this no longer works with modern compilers. #55.

Make small changes to libm-test.c to improve portability.

- Don't define llabs(). This breaks if llabs() is already a macro, which
is allowed by the C standard/POSIX. llabs() was introduced in C99

Make small changes to libm-test.c to improve portability.

- Don't define llabs(). This breaks if llabs() is already a macro, which
is allowed by the C standard/POSIX. llabs() was introduced in C99, so
I think we can safely assume it is present on all interesting systems.

- Cast the parameters to fabs() to the floating point type. Clang has
introduced some interesting warnings that trigger if the arguments to
fabs*() are not the right type.

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Remove [jy][01n]f(). X/Open only standardizes the double versions.

Remove scalb(). The scalbn() or scalbln() function should be used.

Rename openlibm.h to openlibm_math.h.

This is a bit more consistent with the naming of the other header files
(openlibm_complex.h and openlibm_fenv.h). Re-add an openlibm.h header
that includes all

Rename openlibm.h to openlibm_math.h.

This is a bit more consistent with the naming of the other header files
(openlibm_complex.h and openlibm_fenv.h). Re-add an openlibm.h header
that includes all of the public headers as a shorthand.

Fix up all of the source files to include <openlibm_math.h> instead of
<openlibm.h>. While there, fix ordering of the includes.

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Some fixes to be able to build the system versions of the tests.