Fix typo.

[gcc.git] / libgcc / configure.ac

diff --git a/libgcc/configure.ac b/libgcc/configure.ac
index 748189393e6de400b761187311c88a598ba9705b..560e988e048d33f07242f9ce4eb4f747e86fde7a 100644 (file)
--- a/libgcc/configure.ac
+++ b/libgcc/configure.ac
@@ -9,11 +9,17 @@ sinclude(../config/override.m4)
 sinclude(../config/picflag.m4)
 sinclude(../config/dfp.m4)
 sinclude(../config/unwind_ipinfo.m4)
+sinclude(../config/gthr.m4)
 
 AC_PREREQ(2.64)
 AC_INIT([GNU C Runtime Library], 1.0,,[libgcc])
 AC_CONFIG_SRCDIR([static-object.mk])
 
+# The libgcc should not depend on any header files
+AC_DEFUN([_AC_INCLUDES_DEFAULT_REQUIREMENTS],
+  [m4_divert_text([DEFAULTS],
+    [ac_includes_default='/* none */'])])
+
 AC_ARG_WITH(target-subdir,
 [  --with-target-subdir=SUBDIR      Configuring in a subdirectory for target])
 AC_ARG_WITH(cross-host,
@@ -39,6 +45,7 @@ else
 fi
 AC_SUBST(libgcc_topdir)
 AC_CONFIG_AUX_DIR($libgcc_topdir)
+AC_CONFIG_HEADER(auto-target.h:config.in)
 
 AC_ARG_ENABLE(shared,
 [  --disable-shared        don't provide a shared libgcc],
@@ -59,6 +66,16 @@ AC_ARG_ENABLE(shared,
 ], [enable_shared=yes])
 AC_SUBST(enable_shared)
 
+AC_ARG_ENABLE(vtable-verify,
+[  --enable-vtable-verify    Enable vtable verification feature ],
+[case "$enableval" in
+ yes) enable_vtable_verify=yes ;;
+ no)  enable_vtable_verify=no ;;
+ *)   enable_vtable_verify=no;;
+ esac],
+[enable_vtable_verify=no])
+AC_SUBST(enable_vtable_verify)
+
 GCC_PICFLAG
 AC_SUBST(PICFLAG)
 
@@ -165,7 +182,14 @@ AC_SUBST(long_double_type_size)
 
 # Check for decimal float support.
 AC_CACHE_CHECK([whether decimal floating point is supported], [libgcc_cv_dfp],
-              [AC_COMPILE_IFELSE([_Decimal32 x;], [libgcc_cv_dfp=yes],
+              [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <fenv.h>
+]], [[
+_Decimal32 x;
+int fe_except =
+  FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW|FE_UNDERFLOW|FE_INEXACT;
+]])],
+                                 [libgcc_cv_dfp=yes],
                                  [libgcc_cv_dfp=no])])
 decimal_float=$libgcc_cv_dfp
 AC_SUBST(decimal_float)
@@ -309,7 +333,7 @@ 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
+# since 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
@@ -327,6 +351,15 @@ if test "$enable_tls $gcc_cv_use_emutls" = "yes yes"; then
 fi
 AC_SUBST(set_use_emutls)
 
+AC_CACHE_CHECK(for init priority support, libgcc_cv_init_priority, [
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,
+  [[void ip (void) __attribute__ ((constructor (1)));]])],
+  [libgcc_cv_init_priority=yes],[libgcc_cv_init_priority=no])])
+if test $libgcc_cv_init_priority = yes; then
+  AC_DEFINE(HAVE_INIT_PRIORITY, 1,
+  [Define if the compiler supports init priority.])
+fi
+
 # Conditionalize the sfp-machine.h header for this target machine.
 if test -z "${sfp_machine_header}"; then
        sfp_machine_header=$cpu_type/sfp-machine.h
@@ -361,18 +394,7 @@ AC_SUBST(tm_file)
 AC_SUBST(tm_defines)
 
 # Map from thread model to thread header.
-case $target_thread_file in
-    aix)       thread_header=config/rs6000/gthr-aix.h ;;
-    dce)       thread_header=config/pa/gthr-dce.h ;;
-    lynx)      thread_header=config/gthr-lynx.h ;;
-    mipssde)   thread_header=config/mips/gthr-mipssde.h ;;
-    posix)     thread_header=gthr-posix.h ;;
-    rtems)     thread_header=config/gthr-rtems.h ;;
-    single)    thread_header=gthr-single.h ;;
-    tpf)       thread_header=config/s390/gthr-tpf.h ;;
-    vxworks)   thread_header=config/gthr-vxworks.h ;;
-    win32)     thread_header=config/i386/gthr-win32.h ;;
-esac
+GCC_AC_THREAD_HEADER([$target_thread_file])
 
 # Substitute configuration variables
 AC_SUBST(cpu_type)