tests: Accommodate a shell that is not in /bin/sh. * tests/init.sh (setup_): Set srcdir and builddir. (BOURNE_SHELL): New variable. * modules/acl-tests (Depends-on): Add 'test-framework-sh'. * modules/file-has-acl-tests (Depends-on): Likewise. * modules/copy-file-tests (Depends-on): Likewise. * tests/test-set-mode-acl-1.sh: Use the test framework. Invoke shell scripts through $BOURNE_SHELL. * tests/test-set-mode-acl-2.sh: Likewise. * tests/test-copy-acl-1.sh: Likewise. * tests/test-copy-acl-2.sh: Likewise. * tests/test-file-has-acl-1.sh: Likewise. * tests/test-file-has-acl-2.sh: Likewise. * tests/test-copy-file-1.sh: Likewise. * tests/test-copy-file-2.sh: Likewise. * tests/test-set-mode-acl.sh (builddir): Consider value set by the invoker. * tests/test-copy-acl.sh (builddir): Likewise. * tests/test-file-has-acl.sh (builddir): Likewise. * tests/test-copy-file.sh (builddir): Likewise. * tests/test-vc-list-files-cvs.sh: Don't create shims for executables in build-aux/. Instead, invoke shell scripts through $BOURNE_SHELL. * tests/test-vc-list-files-git.sh: Likewise.

Description:
signbit() macro: Determine the sign bit of a floating-point number.

Files:
lib/signbitf.c
lib/signbitd.c
lib/signbitl.c
lib/float+.h
m4/signbit.m4

Depends-on:
math
float           [test $REPLACE_SIGNBIT = 1]
isnanf-nolibm   [test $REPLACE_SIGNBIT = 1]
isnand-nolibm   [test $REPLACE_SIGNBIT = 1]
isnanl-nolibm   [test $REPLACE_SIGNBIT = 1]
fpieee          [test $REPLACE_SIGNBIT = 1]
memcmp          [test $REPLACE_SIGNBIT = 1]

configure.ac:
gl_SIGNBIT
if test $REPLACE_SIGNBIT = 1; then
  AC_LIBOBJ([signbitf])
  AC_LIBOBJ([signbitd])
  AC_LIBOBJ([signbitl])
fi
gl_MATH_MODULE_INDICATOR([signbit])

Makefile.am:

Include:
<math.h>

License:
LGPLv2+

Maintainer:
all