Daily bump.

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

diff --git a/gcc/configure.ac b/gcc/configure.ac
index f637a11..f73fc16 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -276,6 +276,7 @@ rm -f a.out a.exe b.out
 # Find the native compiler
 AC_PROG_CC
 AM_PROG_CC_C_O
+AC_PROG_CXX
 ACX_PROG_GNAT([-I"$srcdir"/ada])
 
 # autoconf is lame and doesn't give us any substitution variable for this.
@@ -323,24 +324,30 @@ AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
 # So, we only use -pedantic if we can disable those warnings.
 
 ACX_PROG_CC_WARNING_OPTS(
-       m4_quote(m4_do([-W -Wall -Wwrite-strings -Wstrict-prototypes ],
-                      [-Wmissing-prototypes -Wcast-qual])), [loose_warn])
+       m4_quote(m4_do([-W -Wall -Wwrite-strings -Wcast-qual])), [loose_warn])
 ACX_PROG_CC_WARNING_OPTS(
-       m4_quote(m4_do([-Wold-style-definition -Wc++-compat ], 
-                      [-Wmissing-format-attribute])), [strict_warn])
+       m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
+       [c_loose_warn])
+ACX_PROG_CC_WARNING_OPTS(
+       m4_quote(m4_do([-Wmissing-format-attribute])), [strict_warn])
+ACX_PROG_CC_WARNING_OPTS(
+       m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn])
 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC(
        m4_quote(m4_do([-Wno-long-long -Wno-variadic-macros ], 
                       [-Wno-overlength-strings])), [strict_warn])
 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual], [strict_warn])
 
 # The above macros do nothing if the compiler is not GCC.  However, the
-# Makefile has more goo to add other flags, so this variabl is used to
-# enables warnings only for GCC.
+# Makefile has more goo to add other flags, so these variables are used
+# to enable warnings only for GCC.
 warn_cflags=
+warn_cxxflags=
 if test "x$GCC" = "xyes"; then
   warn_cflags='$(GCC_WARN_CFLAGS)'
+  warn_cxxflags='$(GCC_WARN_CXXFLAGS)'
 fi
 AC_SUBST(warn_cflags)
+AC_SUBST(warn_cxxflags)
 
 # Enable expensive internal checks
 is_release=
@@ -573,6 +580,13 @@ fi
 # Miscenalleous configure options
 # -------------------------------
 
+# See if we are building gcc with C++.
+AC_ARG_ENABLE(build-with-cxx,
+[  --enable-build-with-cxx build with C++ compiler instead of C compiler],
+ENABLE_BUILD_WITH_CXX=$enableval,
+ENABLE_BUILD_WITH_CXX=no)
+AC_SUBST(ENABLE_BUILD_WITH_CXX)
+
 # With stabs
 AC_ARG_WITH(stabs,
 [  --with-stabs            arrange to use stabs instead of host debug format],
@@ -3125,7 +3139,7 @@ foo:      nop
     esac
 
     gcc_GAS_CHECK_FEATURE([move fp gpr support],
-      gcc_cv_as_powerpc_mfpgpr, [9,99,0],,
+      gcc_cv_as_powerpc_mfpgpr, [2,19,2],,
       [$conftest_s],,
       [AC_DEFINE(HAVE_AS_MFPGPR, 1,
          [Define if your assembler supports mffgpr and mftgpr.])])
@@ -3159,7 +3173,7 @@ LCF0:
     esac
 
     gcc_GAS_CHECK_FEATURE([compare bytes support],
-      gcc_cv_as_powerpc_cmpb, [9,99,0], -a32,
+      gcc_cv_as_powerpc_cmpb, [2,19,2], -a32,
       [$conftest_s],,
       [AC_DEFINE(HAVE_AS_CMPB, 1,
          [Define if your assembler supports cmpb.])])
@@ -3174,7 +3188,7 @@ LCF0:
     esac
 
     gcc_GAS_CHECK_FEATURE([decimal float support],
-      gcc_cv_as_powerpc_dfp, [9,99,0], -a32,
+      gcc_cv_as_powerpc_dfp, [2,19,2], -a32,
       [$conftest_s],,
       [AC_DEFINE(HAVE_AS_DFP, 1,
          [Define if your assembler supports DFP instructions.])])
@@ -3189,11 +3203,39 @@ LCF0:
     esac
 
     gcc_GAS_CHECK_FEATURE([vector-scalar support],
-      gcc_cv_as_powerpc_vsx, [9,99,0], -a32,
+      gcc_cv_as_powerpc_vsx, [2,19,2], -a32,
       [$conftest_s],,
       [AC_DEFINE(HAVE_AS_VSX, 1,
          [Define if your assembler supports VSX instructions.])])
 
+    case $target in
+      *-*-aix*) conftest_s='   .machine "pwr7"
+       .csect .text[[PR]]
+       popcntd 3,3';;
+      *) conftest_s='  .machine power7
+       .text
+       popcntd 3,3';;
+    esac
+
+    gcc_GAS_CHECK_FEATURE([popcntd support],
+      gcc_cv_as_powerpc_popcntd, [2,19,2], -a32,
+      [$conftest_s],,
+      [AC_DEFINE(HAVE_AS_POPCNTD, 1,
+         [Define if your assembler supports POPCNTD instructions.])])
+
+    case $target in
+      *-*-aix*) conftest_s='   .csect .text[[PR]]
+       lwsync';;
+      *) conftest_s='  .text
+       lwsync';;
+    esac
+
+    gcc_GAS_CHECK_FEATURE([lwsync support],
+      gcc_cv_as_powerpc_lwsync, [2,19,2], -a32,
+      [$conftest_s],,
+      [AC_DEFINE(HAVE_AS_LWSYNC, 1,
+         [Define if your assembler supports LWSYNC instructions.])])
+
     gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
       gcc_cv_as_powerpc_gnu_attribute, [2,18,0],,
       [.gnu_attribute 4,1],,
@@ -3721,6 +3763,13 @@ esac],
 AC_SUBST(GGC)
 echo "Using $GGC for garbage collection."
 
+# Libraries to use on the host.  This will normally be set by the top
+# level Makefile.  Here we simply capture the value for our Makefile.
+if test -z "${HOST_LIBS+set}"; then
+  HOST_LIBS=
+fi
+AC_SUBST(HOST_LIBS)
+
 # Use the system's zlib library.
 zlibdir=-L../zlib
 zlibinc="-I\$(srcdir)/../zlib"
@@ -3893,7 +3942,7 @@ touch Make-hooks
 target_list="all.cross start.encap rest.encap tags \
        install-common install-man install-info install-pdf dvi pdf \
        html uninstall info man srcextra srcman srcinfo \
-       mostlyclean clean distclean maintainer-clean"
+       mostlyclean clean distclean maintainer-clean install-plugin"
 
 for t in $target_list
 do