PR target/34210 PR target/35508 * config.host (avr-*-*): Add avr cpu_type and avr...

[pf3gnuchains/gcc-fork.git] / libgcc / configure.ac

diff --git a/libgcc/configure.ac b/libgcc/configure.ac
index 1187d74..81bf06e 100644 (file)
--- a/libgcc/configure.ac
+++ b/libgcc/configure.ac
@@ -1,5 +1,7 @@
 dnl Process this file with autoconf to produce a configure script.
 
+sinclude(../config/enable.m4)
+sinclude(../config/tls.m4)
 sinclude(../config/acx.m4)
 sinclude(../config/no-executables.m4)
 
@@ -143,6 +145,13 @@ if test x$enable_decimal_float = xyes; then
 fi
 AC_SUBST(enable_decimal_float)
 
+# Check for fixed-point support.
+AC_CACHE_CHECK([whether fixed-point is supported], [libgcc_cv_fixed_point],
+              [AC_COMPILE_IFELSE([_Sat _Fract x;], [libgcc_cv_fixed_point=yes],
+                                 [libgcc_cv_fixed_point=no])])
+fixed_point=$libgcc_cv_fixed_point
+AC_SUBST(fixed_point)
+
 # Collect host-machine-specific information.
 . ${srcdir}/config.host
 
@@ -167,6 +176,17 @@ else
 fi
 AC_SUBST(vis_hide)
 
+# See if we have thread-local storage.  We can only test assembler
+# sicne link-time and run-time tests require the newly built
+# gcc, which can't be used to build executable due to that libgcc
+# is yet to be built here.
+GCC_CHECK_CC_TLS
+set_have_cc_tls=
+if test "$enable_tls $gcc_cv_have_cc_tls" = "yes yes"; then
+  set_have_cc_tls="-DHAVE_CC_TLS"
+fi
+AC_SUBST(set_have_cc_tls)
+
 # Conditionalize the makefile for this target machine.
 tmake_file_=
 for f in ${tmake_file}