*** empty log message ***

[bpt/emacs.git] / configure.in

diff --git a/configure.in b/configure.in
index 28c1e7f..e345bf1 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -192,7 +192,7 @@ case "${canonical}" in
       mipsel-*-netbsd*)        machine=pmax ;;
       ns32k-*-netbsd*) machine=ns32000 ;;
       powerpc-*-netbsd*) machine=macppc ;;
-      sparc-*-netbsd*) machine=sparc ;;
+      sparc*-*-netbsd*)        machine=sparc ;;
       vax-*-netbsd*)   machine=vax ;;
       arm-*-netbsd*)   machine=arm ;;
     esac
@@ -264,7 +264,7 @@ case "${canonical}" in
     # to have been a usable /usr/bin/cpp.
     NON_GNU_CPP='cpp'
     case "${canonical}" in
-    alpha*-dec-osf[4-9]*)
+    alpha*-dec-osf[5-9]*)
       opsys=osf5-0 ;;
     esac
   ;;
@@ -1228,6 +1228,12 @@ configure___ system_malloc=yes
 configure___ system_malloc=no
 #endif
 
+#ifdef USE_MMAP_FOR_BUFFERS
+configure___ use_mmap_for_buffers=yes
+#else
+configure___ use_mmap_for_buffers=no
+#endif
+
 #ifndef C_DEBUG_SWITCH
 #define C_DEBUG_SWITCH -g
 #endif
@@ -1538,6 +1544,15 @@ if test x"${REL_ALLOC}" = x; then
   REL_ALLOC=${GNU_MALLOC}
 fi
 
+dnl For now, need to use an explicit `#define USE_MMAP_FOR_BUFFERS 1'
+dnl the system configuration file (s/*.h) to turn the use of mmap
+dnl in the relocating allocator on.
+
+AC_FUNC_MMAP
+if test $use_mmap_for_buffers = yes; then
+  REL_ALLOC=no
+fi
+
 LIBS="$libsrc_libs $LIBS"
 
 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
@@ -1913,7 +1928,7 @@ rename closedir mkdir rmdir sysinfo \
 random lrand48 bcopy bcmp logb frexp fmod rint cbrt ftime res_init setsid \
 strerror fpathconf select mktime euidaccess getpagesize tzset setlocale \
 utimes setrlimit setpgid getcwd getwd shutdown strftime getaddrinfo \
-__fpending mblen mbrlen strsignal setitimer ualarm index rindex)
+__fpending mblen mbrlen strsignal setitimer ualarm index rindex gai_strerror)
 
 AC_FUNC_MKTIME
 if test "$ac_cv_func_working_mktime" = no; then
@@ -2179,7 +2194,8 @@ Configured for \`${canonical}'.
         \`${opsysfile}' and \`${machfile}'
   What compiler should emacs be built with?               ${CC} ${CFLAGS}
   Should Emacs use the GNU version of malloc?             ${GNU_MALLOC}${GNU_MALLOC_reason}
-  Should Emacs use the relocating allocator for buffers?  ${REL_ALLOC}
+  Should Emacs use a relocating allocator for buffers?    ${REL_ALLOC}
+  Should Emacs use mmap(2) for buffer allocation?         $use_mmap_for_buffers
   What window system should Emacs use?                    ${window_system}
   What toolkit should Emacs use?                          ${USE_X_TOOLKIT}"