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PR documentation/15479
[pf3gnuchains/gcc-fork.git] / configure.ac
index a79abb6..e81fcdb 100644 (file)
@@ -41,6 +41,7 @@ AC_CANONICAL_SYSTEM
 AC_ARG_PROGRAM
 
 m4_pattern_allow([^AS_FOR_TARGET$])dnl
+m4_pattern_allow([^AS_FOR_BUILD$])dnl
 
 # Get 'install' or 'install-sh' and its variants.
 AC_PROG_INSTALL
@@ -176,6 +177,7 @@ target_libraries="target-libgcc \
                target-libiberty \
                target-libgloss \
                target-newlib \
+               target-libgomp \
                target-libstdc++-v3 \
                target-libmudflap \
                target-libssp \
@@ -183,8 +185,7 @@ target_libraries="target-libgcc \
                target-boehm-gc \
                ${libgcj} \
                target-libobjc \
-               target-libada \
-               target-libgomp"
+               target-libada"
 
 # these tools are built using the target libraries, and are intended to
 # run only in the target environment
@@ -206,6 +207,10 @@ configdirs=`echo ${host_libs} ${host_tools}`
 target_configdirs=`echo ${target_libraries} ${target_tools}`
 build_configdirs=`echo ${build_libs} ${build_tools}`
 
+m4_divert_text([PARSE_ARGS],
+[ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
+])
+
 ################################################################################
 
 srcname="gnu development package"
@@ -405,7 +410,7 @@ case "${target}" in
   *-*-chorusos)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
     ;;
-  powerpc-*-darwin* | i[[3456789]]86-*-darwin*)
+  powerpc-*-darwin* | i[[3456789]]86-*-darwin* | x86_64-*-darwin9*)
     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
     noconfigdirs="$noconfigdirs sim target-rda"
     ;;
@@ -570,7 +575,6 @@ case "${target}" in
        unsupported_languages="$unsupported_languages fortran"
        noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
       *-*-elf)
-       unsupported_languages="$unsupported_languages fortran"
        noconfigdirs="$noconfigdirs target-boehm-gc";;
       *-*-linux*)
        noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
@@ -870,7 +874,7 @@ case "${target}" in
   vax-*-*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
     ;;
-  xtensa-*-*)
+  xtensa*-*-*)
     noconfigdirs="$noconfigdirs ${libgcj}"
     ;;
   ip2k-*-*)
@@ -1082,9 +1086,31 @@ if test -z "${CC}" && test "${build}" = "${host}" ; then
 fi
 
 if test "${build}" != "${host}" ; then
+  AR_FOR_BUILD=${AR_FOR_BUILD-ar}
+  AS_FOR_BUILD=${AS_FOR_BUILD-as}
   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
+  CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
+  GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
+  GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
+  DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
+  LD_FOR_BUILD=${LD_FOR_BUILD-ld}
+  NM_FOR_BUILD=${NM_FOR_BUILD-nm}
+  RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
+  WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
+  WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
 else
+  AR_FOR_BUILD="\$(AR)"
+  AS_FOR_BUILD="\$(AS)"
   CC_FOR_BUILD="\$(CC)"
+  CXX_FOR_BUILD="\$(CXX)"
+  GCJ_FOR_BUILD="\$(GCJ)"
+  GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
+  DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
+  LD_FOR_BUILD="\$(LD)"
+  NM_FOR_BUILD="\$(NM)"
+  RANLIB_FOR_BUILD="\$(RANLIB)"
+  WINDRES_FOR_BUILD="\$(WINDRES)"
+  WINDMC_FOR_BUILD="\$(WINDMC)"
 fi
 
 AC_PROG_CC
@@ -1197,11 +1223,11 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
   if test x"$have_gmp" = xyes; then
     saved_LIBS="$LIBS"
     LIBS="$LIBS $gmplibs"
-    dnl MPFR 2.2.0 is acceptable but buggy, MPFR 2.2.1 is better.
+    dnl MPFR 2.2.1 is acceptable, but MPFR 2.3.0 is better.
     AC_MSG_CHECKING([for correct version of mpfr.h])
     AC_TRY_LINK([#include <gmp.h>
     #include <mpfr.h>],[
-    #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,0)
+    #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
     choke me
     #endif
     mpfr_t n;
@@ -1214,7 +1240,7 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
     mpfr_subnormalize (x, t, GMP_RNDN);
     ], [AC_TRY_LINK([#include <gmp.h>
     #include <mpfr.h>],[
-    #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
+    #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,0)
     choke me
     #endif
     mpfr_t n; mpfr_init(n);
@@ -1225,7 +1251,7 @@ if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
   CFLAGS="$saved_CFLAGS"
 
   if test x$have_gmp != xyes; then
-    AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2.1+.
+    AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.3.0+.
 Try the --with-gmp and/or --with-mpfr options to specify their locations.
 Copies of these libraries' source code can be found at their respective
 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
@@ -1457,7 +1483,8 @@ fi
 # Handle --disable-<component> generically.
 for dir in $configdirs $build_configdirs $target_configdirs ; do
   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
-  if eval test x\${enable_${dirname}} "=" xno ; then
+  varname=`echo $dirname | sed -e s/+/_/g`
+  if eval test x\${enable_${varname}} "=" xno ; then
     noconfigdirs="$noconfigdirs $dir"
   fi
 done
@@ -1640,6 +1667,38 @@ AC_ARG_WITH([debug-prefix-map],
   [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
 
+# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
+# might be empty or "-g".  We don't require a C++ compiler, so CXXFLAGS
+# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
+# We want to ensure that TARGET libraries (which we know are built with
+# gcc) are built with "-O2 -g", so include those options when setting
+# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
+if test "x$CFLAGS_FOR_TARGET" = x; then
+  CFLAGS_FOR_TARGET=$CFLAGS
+  case " $CFLAGS " in
+    *" -O2 "*) ;;
+    *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
+  esac
+  case " $CFLAGS " in
+    *" -g "* | *" -g3 "*) ;;
+    *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
+  esac
+fi
+AC_SUBST(CFLAGS_FOR_TARGET)
+
+if test "x$CXXFLAGS_FOR_TARGET" = x; then
+  CXXFLAGS_FOR_TARGET=$CXXFLAGS
+  case " $CXXFLAGS " in
+    *" -O2 "*) ;;
+    *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
+  esac
+  case " $CXXFLAGS " in
+    *" -g "* | *" -g3 "*) ;;
+    *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
+  esac
+fi
+AC_SUBST(CXXFLAGS_FOR_TARGET)
+
 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
 # the named directory are copied to $(tooldir)/sys-include.
 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
@@ -1767,7 +1826,7 @@ case "${target}" in
   v850*-*-*)
     md_exec_prefix=/usr/ccs/bin
     ;;
-  xtensa-*-elf*)
+  xtensa*-*-elf*)
     ;;
 
   *-*-beos* | \
@@ -1798,6 +1857,9 @@ case "${target}" in
   mips*-sde-elf*)
     target_makefile_frag="config/mt-sde"
     ;;
+  mipsisa*-*-elfoabi*)
+    target_makefile_frag="config/mt-mips-elfoabi"
+    ;;
   *-*-netware*)
     target_makefile_frag="config/mt-netware"
     ;;
@@ -2361,7 +2423,11 @@ esac
 
 # Allow the user to override the flags for
 # our build compiler if desired.
-CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
+if test x"${build}" = x"${host}" ; then
+  CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
+  CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
+  LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
+fi
 
 # On Canadian crosses, we'll be searching the right directories for
 # the previously-installed cross compiler, so don't bother to add
@@ -2419,7 +2485,21 @@ AC_SUBST(target_configargs)
 
 
 # Build tools.
+AC_SUBST(AR_FOR_BUILD)
+AC_SUBST(AS_FOR_BUILD)
 AC_SUBST(CC_FOR_BUILD)
+AC_SUBST(CFLAGS_FOR_BUILD)
+AC_SUBST(CXXFLAGS_FOR_BUILD)
+AC_SUBST(CXX_FOR_BUILD)
+AC_SUBST(DLLTOOL_FOR_BUILD)
+AC_SUBST(GCJ_FOR_BUILD)
+AC_SUBST(GFORTRAN_FOR_BUILD)
+AC_SUBST(LDFLAGS_FOR_BUILD)
+AC_SUBST(LD_FOR_BUILD)
+AC_SUBST(NM_FOR_BUILD)
+AC_SUBST(RANLIB_FOR_BUILD)
+AC_SUBST(WINDMC_FOR_BUILD)
+AC_SUBST(WINDRES_FOR_BUILD)
 AC_SUBST(config_shell)
 
 # Generate default definitions for YACC, M4, LEX and other programs that run
@@ -2504,7 +2584,6 @@ NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
 AC_SUBST(CC)
 AC_SUBST(CXX)
 AC_SUBST(CFLAGS)
-AC_SUBST(CFLAGS_FOR_BUILD)
 AC_SUBST(CXXFLAGS)
 
 # Target tools.