--- SheepShaver/src/Unix/configure.ac	2005/11/30 00:02:25	1.40
+++ SheepShaver/src/Unix/configure.ac	2005/12/12 21:22:40	1.44
@@ -125,6 +125,7 @@ AC_SUBST(MONSRCS)
 
 dnl Checks for libraries.
 AC_CHECK_LIB(posix4, sem_init)
+AC_CHECK_LIB(m, cos)
 
 dnl Do we need SDL?
 WANT_SDL=no
@@ -491,6 +492,23 @@ darwin*)
     EXTFSSRC=../MacOSX/extfs_macosx.mm
   fi
   ;;
+irix*)
+  ETHERSRC=ether_unix.cpp
+  AUDIOSRC=Irix/audio_irix.cpp
+  LIBS="$LIBS -laudio"
+  WANT_ESD=no
+
+  dnl Check if our compiler supports -IPA (MIPSPro)
+  HAVE_IPA=no
+  ocflags="$CFLAGS"
+  CFLAGS=`echo " $CFLAGS -IPA" | sed -e "s/ -g //g"`
+  AC_MSG_CHECKING(if "-IPA" works)
+  dnl Do a test compile of an empty function
+  AC_TRY_COMPILE([#if defined __GNUC__
+                  # error GCC does not support IPA yet
+                  #endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
+  CFLAGS="$ocflags"
+  ;;
 esac
 
 dnl Is the slirp library supported?
@@ -1178,6 +1196,7 @@ HAVE_GCC27=no
 AC_MSG_CHECKING(for GCC 2.7 or higher)
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
                                      # error gcc < 2.7
+                                     typedef syntax error;
                                      #endif
                                    ]])],
                   [AC_MSG_RESULT(yes); HAVE_GCC27=yes],
@@ -1188,6 +1207,7 @@ HAVE_GCC30=no
 AC_MSG_CHECKING(for GCC 3.0 or higher)
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
                                      # error gcc < 3
+                                     typedef syntax error;
                                      #endif
                                    ]])],
                   [AC_MSG_RESULT(yes); HAVE_GCC30=yes],
@@ -1275,9 +1295,15 @@ if [[ "x$EMULATED_PPC" = "xyes" ]]; then
       i?86:elf)
         ac_cv_use_dyngen=yes
         ;;
+      mips:elf)
+        ac_cv_use_dyngen=yes
+        ;;
       powerpc:mach)
         ac_cv_use_dyngen=yes
         ;;
+      i?86:mach)
+        ac_cv_use_dyngen=yes
+        ;;
       *:*)
         ac_cv_use_dyngen=no
         ;;
@@ -1287,7 +1313,7 @@ if [[ "x$EMULATED_PPC" = "xyes" ]]; then
         if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
           DYNGEN_CC=$CXX
         else
-          for p in /usr/bin /usr/local/bin; do
+          for p in /usr/bin /usr/local/bin /usr/freeware/bin; do
             gxx="$p/g++"
             if [[ -x "$gxx" ]]; then
               DYNGEN_CC="$gxx"
@@ -1304,21 +1330,36 @@ if [[ "x$EMULATED_PPC" = "xyes" ]]; then
       i?86)
         DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
         ;;
+      mips)
+        DYNGEN_OP_FLAGS="-fno-delayed-branch -mno-abicalls"
+        ;;
       powerpc)
         if [[ "x$ac_cv_object_format" = "xmach" ]]; then
           DYNGEN_OP_FLAGS="-mdynamic-no-pic"
         fi
         ;;
       esac
-      if [[ "x$HAVE_GCC30" = "xyes" ]]; then
+      have_dyngen_gcc3=no
+      case "x`$DYNGEN_CC -dumpversion`" in
+      x[12].*) ;;
+      x*) have_dyngen_gcc3=yes ;;
+      esac
+      if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
         DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
       else
         DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
       fi
       DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-functions -finline-limit=10000 -fno-exceptions -g0"
-      if [[ "x$HAVE_GCC30" = "xyes" ]]; then
+      if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
         DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
       fi
+      if [[ "x$DYNGEN_CC" != "x$CXX" ]]; then
+        DYNGEN_CFLAGS="-O2 $CFLAGS"
+        DYNGEN_CXXFLAGS="-O2 $CXXFLAGS"
+      else
+        DYNGEN_CFLAGS="\$(CFLAGS)"
+        DYNGEN_CXXFLAGS="\$(CXXFLAGS)"
+      fi
     else
       WANT_JIT=no
     fi
@@ -1367,11 +1408,21 @@ if [[ "x$WANT_JIT" = "xyes" ]]; then
   CPPFLAGS="$CPPFLAGS -DUSE_JIT"
 fi
 
+dnl Higher level optimizations with MIPSPro compilers are possible
+if [[ "x$HAVE_IPA" = "xyes" ]]; then
+  CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
+  CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
+  CXXFLAGS="-LANG:std $CXXFLAGS"
+  LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
+fi
+
 dnl Generate Makefile.
 AC_SUBST(PERL)
 AC_SUBST(USE_DYNGEN, [$ac_cv_use_dyngen])
 AC_SUBST(DYNGENSRCS)
 AC_SUBST(DYNGEN_CC)
+AC_SUBST(DYNGEN_CFLAGS)
+AC_SUBST(DYNGEN_CXXFLAGS)
 AC_SUBST(DYNGEN_OP_FLAGS)
 AC_SUBST(SYSSRCS)
 AC_SUBST(CPUSRCS)