Import 'copysign' and 'isfinite' modules from Gnulib.

* lib/Makefile.am:
* m4/gnulib-cache.m4:
* m4/gnulib-comp.m4: Add 'copysign' and 'isfinite' Gnulib modules.

lib/Makefile.am

@@ -21,7 +21,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap c-strcase canonicalize-lgpl ceil clock-time close connect dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p maintainer-makefile malloc-gnu malloca nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat time times trunc verify vsnprintf warnings wchar
+# Reproduce by: gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap c-strcase canonicalize-lgpl ceil clock-time close connect copysign dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isfinite isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p maintainer-makefile malloc-gnu malloca nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat time times trunc verify vsnprintf warnings wchar
 
 AUTOMAKE_OPTIONS = 1.5 gnits subdir-objects
 
@@ -50,6 +50,7 @@ EXTRA_libgnu_la_SOURCES =
 libgnu_la_LDFLAGS = $(AM_LDFLAGS)
 libgnu_la_LDFLAGS += -no-undefined
 libgnu_la_LDFLAGS += $(CEIL_LIBM)
+libgnu_la_LDFLAGS += $(COPYSIGN_LIBM)
 libgnu_la_LDFLAGS += $(FLOOR_LIBM)
 libgnu_la_LDFLAGS += $(FREXP_LIBM)
 libgnu_la_LDFLAGS += $(GETADDRINFO_LIB)
@@ -312,6 +313,15 @@ EXTRA_libgnu_la_SOURCES += connect.c
 
 ## end   gnulib module connect
 
+## begin gnulib module copysign
+
+
+EXTRA_DIST += copysign.c
+
+EXTRA_libgnu_la_SOURCES += copysign.c
+
+## end   gnulib module copysign
+
 ## begin gnulib module dirent
 
 BUILT_SOURCES += dirent.h
@@ -753,6 +763,15 @@ EXTRA_libgnu_la_SOURCES += inet_pton.c
 
 ## end   gnulib module inet_pton
 
+## begin gnulib module isfinite
+
+
+EXTRA_DIST += isfinite.c
+
+EXTRA_libgnu_la_SOURCES += isfinite.c
+
+## end   gnulib module isfinite
+
 ## begin gnulib module isinf
 
 
@@ -789,6 +808,15 @@ EXTRA_libgnu_la_SOURCES += isnan.c isnanf.c
 
 ## end   gnulib module isnanf
 
+## begin gnulib module isnanf-nolibm
+
+
+EXTRA_DIST += float+.h isnan.c isnanf-nolibm.h isnanf.c
+
+EXTRA_libgnu_la_SOURCES += isnan.c isnanf.c
+
+## end   gnulib module isnanf-nolibm
+
 ## begin gnulib module isnanl
 
 
@@ -798,6 +826,15 @@ EXTRA_libgnu_la_SOURCES += isnan.c isnanl.c
 
 ## end   gnulib module isnanl
 
+## begin gnulib module isnanl-nolibm
+
+
+EXTRA_DIST += float+.h isnan.c isnanl-nolibm.h isnanl.c
+
+EXTRA_libgnu_la_SOURCES += isnan.c isnanl.c
+
+## end   gnulib module isnanl-nolibm
+
 ## begin gnulib module langinfo
 
 BUILT_SOURCES += langinfo.h
@@ -1734,6 +1771,15 @@ EXTRA_DIST += signal.in.h
 
 ## end   gnulib module signal-h
 
+## begin gnulib module signbit
+
+
+EXTRA_DIST += float+.h signbitd.c signbitf.c signbitl.c
+
+EXTRA_libgnu_la_SOURCES += signbitd.c signbitf.c signbitl.c
+
+## end   gnulib module signbit
+
 ## begin gnulib module size_max
 
 libgnu_la_SOURCES += size_max.h

m4/gnulib-cache.m4

@@ -27,7 +27,7 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap c-strcase canonicalize-lgpl ceil clock-time close connect dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p maintainer-makefile malloc-gnu malloca nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat time times trunc verify vsnprintf warnings wchar
+#   gnulib-tool --import --dir=. --local-dir=gnulib-local --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --lgpl=3 --no-conditional-dependencies --libtool --macro-prefix=gl --no-vc-files accept alignof alloca-opt announce-gen autobuild bind byteswap c-strcase canonicalize-lgpl ceil clock-time close connect copysign dirfd duplocale environ extensions flock floor fpieee frexp fstat full-read full-write func gendocs getaddrinfo getlogin getpeername getsockname getsockopt git-version-gen gitlog-to-changelog gnu-web-doc-update gnupload havelib iconv_open-utf inet_ntop inet_pton isfinite isinf isnan ldexp lib-symbol-versions lib-symbol-visibility libunistring listen localcharset locale log1p maintainer-makefile malloc-gnu malloca nl_langinfo nproc open pipe-posix pipe2 poll putenv recv recvfrom regex rename select send sendto setenv setsockopt shutdown socket stat-time stdlib strftime striconveh string sys_stat time times trunc verify vsnprintf warnings wchar
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([gnulib-local])
@@ -45,6 +45,7 @@ gl_MODULES([
   clock-time
   close
   connect
+  copysign
   dirfd
   duplocale
   environ
@@ -71,6 +72,7 @@ gl_MODULES([
   iconv_open-utf
   inet_ntop
   inet_pton
+  isfinite
   isinf
   isnan
   ldexp

m4/gnulib-comp.m4

@@ -61,6 +61,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module close:
   # Code from module configmake:
   # Code from module connect:
+  # Code from module copysign:
   # Code from module dirent:
   # Code from module dirfd:
   # Code from module dirname-lgpl:
@@ -108,12 +109,15 @@ AC_DEFUN([gl_EARLY],
   # Code from module inet_ntop:
   # Code from module inet_pton:
   # Code from module inline:
+  # Code from module isfinite:
   # Code from module isinf:
   # Code from module isnan:
   # Code from module isnand:
   # Code from module isnand-nolibm:
   # Code from module isnanf:
+  # Code from module isnanf-nolibm:
   # Code from module isnanl:
+  # Code from module isnanl-nolibm:
   # Code from module langinfo:
   # Code from module largefile:
   AC_REQUIRE([AC_SYS_LARGEFILE])
@@ -172,6 +176,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module setsockopt:
   # Code from module shutdown:
   # Code from module signal-h:
+  # Code from module signbit:
   # Code from module size_max:
   # Code from module snippet/_Noreturn:
   # Code from module snippet/arg-nonnull:
@@ -292,6 +297,11 @@ AC_SUBST([LTALLOCA])
     AC_LIBOBJ([connect])
   fi
   gl_SYS_SOCKET_MODULE_INDICATOR([connect])
+  gl_FUNC_COPYSIGN
+  if test $HAVE_COPYSIGN = 0; then
+    AC_LIBOBJ([copysign])
+  fi
+  gl_MATH_MODULE_INDICATOR([copysign])
   gl_DIRENT_H
   gl_FUNC_DIRFD
   if test $ac_cv_func_dirfd = no && test $gl_cv_func_dirfd_macro = no; then
@@ -415,6 +425,11 @@ AC_SUBST([LTALLOCA])
   fi
   gl_ARPA_INET_MODULE_INDICATOR([inet_pton])
   gl_INLINE
+  gl_ISFINITE
+  if test $REPLACE_ISFINITE = 1; then
+    AC_LIBOBJ([isfinite])
+  fi
+  gl_MATH_MODULE_INDICATOR([isfinite])
   gl_ISINF
   if test $REPLACE_ISINF = 1; then
     AC_LIBOBJ([isinf])
@@ -445,6 +460,11 @@ AC_SUBST([LTALLOCA])
     gl_PREREQ_ISNANF
   fi
   gl_MATH_MODULE_INDICATOR([isnanf])
+  gl_FUNC_ISNANF_NO_LIBM
+  if test $gl_func_isnanf_no_libm != yes; then
+    AC_LIBOBJ([isnanf])
+    gl_PREREQ_ISNANF
+  fi
   gl_FUNC_ISNANL
   m4_ifdef([gl_ISNAN], [
     AC_REQUIRE([gl_ISNAN])
@@ -454,6 +474,11 @@ AC_SUBST([LTALLOCA])
     gl_PREREQ_ISNANL
   fi
   gl_MATH_MODULE_INDICATOR([isnanl])
+  gl_FUNC_ISNANL_NO_LIBM
+  if test $gl_func_isnanl_no_libm != yes; then
+    AC_LIBOBJ([isnanl])
+    gl_PREREQ_ISNANL
+  fi
   gl_LANGINFO_H
   AC_REQUIRE([gl_LARGEFILE])
   gl_FUNC_LDEXP
@@ -656,6 +681,13 @@ AC_SUBST([LTALLOCA])
   fi
   gl_SYS_SOCKET_MODULE_INDICATOR([shutdown])
   gl_SIGNAL_H
+  gl_SIGNBIT
+  if test $REPLACE_SIGNBIT = 1; then
+    AC_LIBOBJ([signbitf])
+    AC_LIBOBJ([signbitd])
+    AC_LIBOBJ([signbitl])
+  fi
+  gl_MATH_MODULE_INDICATOR([signbit])
   gl_SIZE_MAX
   gl_FUNC_SNPRINTF
   gl_STDIO_MODULE_INDICATOR([snprintf])
@@ -935,6 +967,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/close.c
   lib/config.charset
   lib/connect.c
+  lib/copysign.c
   lib/dirent.in.h
   lib/dirfd.c
   lib/dirname-lgpl.c
@@ -976,11 +1009,14 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/iconveh.h
   lib/inet_ntop.c
   lib/inet_pton.c
+  lib/isfinite.c
   lib/isinf.c
   lib/isnan.c
   lib/isnand-nolibm.h
   lib/isnand.c
+  lib/isnanf-nolibm.h
   lib/isnanf.c
+  lib/isnanl-nolibm.h
   lib/isnanl.c
   lib/itold.c
   lib/langinfo.in.h
@@ -1053,6 +1089,9 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/setsockopt.c
   lib/shutdown.c
   lib/signal.in.h
+  lib/signbitd.c
+  lib/signbitf.c
+  lib/signbitl.c
   lib/size_max.h
   lib/snprintf.c
   lib/socket.c
@@ -1125,6 +1164,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/close.m4
   m4/codeset.m4
   m4/configmake.m4
+  m4/copysign.m4
   m4/dirent_h.m4
   m4/dirfd.m4
   m4/dirname.m4
@@ -1163,6 +1203,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/inline.m4
   m4/intmax_t.m4
   m4/inttypes_h.m4
+  m4/isfinite.m4
   m4/isinf.m4
   m4/isnan.m4
   m4/isnand.m4
@@ -1228,6 +1269,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/servent.m4
   m4/setenv.m4
   m4/signal_h.m4
+  m4/signbit.m4
   m4/size_max.m4
   m4/snprintf.m4
   m4/socketlib.m4