* intrinsics/c99_functions.c (log10l): New log10l function for

	systems where this is not available.
	* c99_protos.h: Prototype for log10l function.
	* libgfortran.h: Use generated kinds.h to define GFC_INTEGER_*,
	GFC_UINTEGER_*, GFC_LOGICAL_*, GFC_REAL_*, GFC_COMPLEX_*. Update
	prototypes for gfc_itoa and xtoa.
	* io/io.h: Update prototypes for set_integer and max_value.
	* io/list_read.c (convert_integer): Use new
	GFC_(INTEGER|REAL)_LARGEST type.
	* io/read.c (set_integer): Likewise.
	(max_value): Likewise.
	(convert_real): Likewise.
	(real_l): Likewise.
	(next_char): Likewise.
	(read_decimal): Likewise.
	(read_radix): Likewise.
	(read_f): Likewise.
	* io/write.c (extract_int): Use new GFC_INTEGER_LARGEST type.
	(extract_real): Use new GFC_REAL_LARGEST type.
	(calculate_exp): Likewise.
	(calculate_G_format): Likewise.
	(output_float): Likewise. Use log10l for long double values.
	Add comment for sprintf format. Use GFC_REAL_LARGEST_FORMAT.
	(write_l): Use new GFC_INTEGER_LARGEST type.
	(write_float): Use new GFC_REAL_LARGEST type.
	(write_int): Remove useless special case for (len < 8).
	(write_decimal): Use GFC_INTEGER_LARGEST.
	(otoa): Use GFC_UINTEGER_LARGEST as argument.
	(btoa): Use GFC_UINTEGER_LARGEST as argument.
	* runtime/error.c (gfc_itoa): Use GFC_INTEGER_LARGEST as
	argument.
	(xtoa): Use GFC_UINTEGER_LARGEST as argument.
	* Makefile.am: Use mk-kinds-h.sh to generate header kinds.h
	with all Fortran kinds available.
	* configure.ac: Check for strtold and log10l.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* mk-kinds-h.sh: Configuration script for available integer
	and real kinds.
	* lib/target-supports.exp: Add
	check_effective_target_fortran_large_real and
	check_effective_target_fortran_large_int to check for
	corresponding effective targets.
	* gfortran.dg/large_integer_kind_1.f90: New test.
	* gfortran.dg/large_real_kind_1.f90: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101274 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 87 insertions, 350 deletions

diff --git a/libgfortran/configure b/libgfortran/configure
index aaaf9f67ea5..65ccbce5ae3 100755
--- a/libgfortran/configure
+++ b/libgfortran/configure
@@ -1957,7 +1957,7 @@ fi
 #     suite is included, we'll have to know.
 if test "$build" != "$host"; then
   LIBGFOR_IS_NATIVE=false
-
+  GCC_NO_EXECUTABLES
 else
   LIBGFOR_IS_NATIVE=true
 fi
@@ -2350,39 +2350,6 @@ main ()
   return 0;
 }
 _ACEOF
-# FIXME: Cleanup?
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
-  gcc_no_link=no
-else
-  gcc_no_link=yes
-fi
-
-if test x$gcc_no_link = xyes; then
-  # Setting cross_compile will disable run tests; it will
-  # also disable AC_CHECK_FILE but that's generally
-  # correct if we can't link.
-  cross_compiling=yes
-  EXEEXT=
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-int
-main ()
-{
-
-  ;
-  return 0;
-}
-_ACEOF
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files a.out a.exe b.out"
 # Try to create an executable without -o first, disregard a.out.
@@ -2519,7 +2486,6 @@ echo "${ECHO_T}$ac_cv_exeext" >&6
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
 ac_exeext=$EXEEXT
-fi
 echo "$as_me:$LINENO: checking for suffix of object files" >&5
 echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
 if test "${ac_cv_objext+set}" = set; then
@@ -4123,7 +4089,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
 case $host in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 4126 "configure"' > conftest.$ac_ext
+  echo '#line 4092 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -4241,12 +4207,7 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-     if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+     cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -4514,7 +4475,7 @@ fi
 
 
 # Provide some information about the compiler.
-echo "$as_me:4517:" \
+echo "$as_me:4478:" \
      "checking for Fortran compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
 { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
@@ -5032,13 +4993,7 @@ fi
 rm -f conftest*
 fi
 
-if test x$gcc_no_link = xyes; then
-  if test "x${ac_cv_func_mmap_fixed_mapped+set}" != xset; then
-    ac_cv_func_mmap_fixed_mapped=no
-  fi
-fi
-if test "x${ac_cv_func_mmap_fixed_mapped}" != xno; then
-  ac_ext=c
+ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
@@ -5686,12 +5641,7 @@ echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -5959,7 +5909,6 @@ _ACEOF
 fi
 rm -f conftest.mmap
 
-fi
 echo "$as_me:$LINENO: checking for off_t" >&5
 echo $ECHO_N "checking for off_t... $ECHO_C" >&6
 if test "${ac_cv_type_off_t+set}" = set; then
@@ -7143,11 +7092,6 @@ if test "${ac_cv_lib_m_csin+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -7220,7 +7164,8 @@ fi
 
 
 
-for ac_func in getrusage times mkstemp strtof snprintf ftruncate chsize
+
+for ac_func in getrusage times mkstemp strtof strtold snprintf ftruncate chsize
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -7228,12 +7173,7 @@ echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -7342,12 +7282,7 @@ echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -7450,12 +7385,7 @@ echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -7557,11 +7487,6 @@ if test "${ac_cv_lib_c_getgid+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lc  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -7634,11 +7559,6 @@ if test "${ac_cv_lib_c_getpid+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lc  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -7711,11 +7631,6 @@ if test "${ac_cv_lib_c_getuid+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lc  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -7791,11 +7706,6 @@ if test "${ac_cv_lib_m_acosf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -7868,11 +7778,6 @@ if test "${ac_cv_lib_m_asinf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -7945,11 +7850,6 @@ if test "${ac_cv_lib_m_atan2f+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8022,11 +7922,6 @@ if test "${ac_cv_lib_m_atanf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8099,11 +7994,6 @@ if test "${ac_cv_lib_m_ceilf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8176,11 +8066,6 @@ if test "${ac_cv_lib_m_copysignf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8253,11 +8138,6 @@ if test "${ac_cv_lib_m_cosf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8330,11 +8210,6 @@ if test "${ac_cv_lib_m_coshf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8407,11 +8282,6 @@ if test "${ac_cv_lib_m_expf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8484,11 +8354,6 @@ if test "${ac_cv_lib_m_fabsf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8561,11 +8426,6 @@ if test "${ac_cv_lib_m_floorf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8638,11 +8498,6 @@ if test "${ac_cv_lib_m_frexpf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8715,11 +8570,6 @@ if test "${ac_cv_lib_m_hypotf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8792,11 +8642,6 @@ if test "${ac_cv_lib_m_logf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8869,11 +8714,6 @@ if test "${ac_cv_lib_m_log10f+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -8939,6 +8779,78 @@ _ACEOF
 
 fi
 
+echo "$as_me:$LINENO: checking for log10l in -lm" >&5
+echo $ECHO_N "checking for log10l in -lm... $ECHO_C" >&6
+if test "${ac_cv_lib_m_log10l+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char log10l ();
+int
+main ()
+{
+log10l ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_m_log10l=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_m_log10l=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_m_log10l" >&5
+echo "${ECHO_T}$ac_cv_lib_m_log10l" >&6
+if test $ac_cv_lib_m_log10l = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_LOG10L 1
+_ACEOF
+
+fi
+
 echo "$as_me:$LINENO: checking for nextafter in -lm" >&5
 echo $ECHO_N "checking for nextafter in -lm... $ECHO_C" >&6
 if test "${ac_cv_lib_m_nextafter+set}" = set; then
@@ -8946,11 +8858,6 @@ if test "${ac_cv_lib_m_nextafter+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9023,11 +8930,6 @@ if test "${ac_cv_lib_m_nextafterf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9100,11 +9002,6 @@ if test "${ac_cv_lib_m_powf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9177,11 +9074,6 @@ if test "${ac_cv_lib_m_round+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9254,11 +9146,6 @@ if test "${ac_cv_lib_m_roundf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9331,11 +9218,6 @@ if test "${ac_cv_lib_m_scalbnf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9408,11 +9290,6 @@ if test "${ac_cv_lib_m_scalbn+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9485,11 +9362,6 @@ if test "${ac_cv_lib_m_sinf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9562,11 +9434,6 @@ if test "${ac_cv_lib_m_sinhf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9639,11 +9506,6 @@ if test "${ac_cv_lib_m_sqrtf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9716,11 +9578,6 @@ if test "${ac_cv_lib_m_tanf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9793,11 +9650,6 @@ if test "${ac_cv_lib_m_tanhf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9870,11 +9722,6 @@ if test "${ac_cv_lib_m_trunc+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -9947,11 +9794,6 @@ if test "${ac_cv_lib_m_truncf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10024,11 +9866,6 @@ if test "${ac_cv_lib_m_erf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10101,11 +9938,6 @@ if test "${ac_cv_lib_m_erfc+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10178,11 +10010,6 @@ if test "${ac_cv_lib_m_erfcf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10255,11 +10082,6 @@ if test "${ac_cv_lib_m_erff+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10332,11 +10154,6 @@ if test "${ac_cv_lib_m_j0+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10409,11 +10226,6 @@ if test "${ac_cv_lib_m_j0f+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10486,11 +10298,6 @@ if test "${ac_cv_lib_m_j1+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10563,11 +10370,6 @@ if test "${ac_cv_lib_m_j1f+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10640,11 +10442,6 @@ if test "${ac_cv_lib_m_jn+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10717,11 +10514,6 @@ if test "${ac_cv_lib_m_jnf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10794,11 +10586,6 @@ if test "${ac_cv_lib_m_y0+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10871,11 +10658,6 @@ if test "${ac_cv_lib_m_y0f+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -10948,11 +10730,6 @@ if test "${ac_cv_lib_m_y1+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -11025,11 +10802,6 @@ if test "${ac_cv_lib_m_y1f+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -11102,11 +10874,6 @@ if test "${ac_cv_lib_m_yn+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -11179,11 +10946,6 @@ if test "${ac_cv_lib_m_ynf+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -11258,11 +11020,6 @@ if test "${ac_cv_lib_m_finite+set}" = set; then
 else
   ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
-if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -11422,12 +11179,7 @@ echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
 if eval "test \"\${$as_ac_var+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -11641,12 +11393,7 @@ echo $ECHO_N "checking whether gettimeofday can accept two arguments... $ECHO_C"
 if test "${emacs_cv_gettimeofday_two_arguments+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -11734,12 +11481,7 @@ else
 
   save_CFLAGS="$CFLAGS"
   CFLAGS="-O2"
-  if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
@@ -11941,12 +11683,7 @@ if test "${have_attribute_alias+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
-  if test x$gcc_no_link = xyes; then
-  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
-echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext