[project @ 2003-05-17 14:49:45 by reid]
[ghc-hetmet.git] / configure.in
index 287a757..6e8d6c1 100644 (file)
@@ -203,6 +203,15 @@ i[[3456]]86-*-mingw32*)
         HostOS_CPP='mingw32'
        exeext='.exe'
         ;;
+ia64-*-linux*)
+        HostPlatform=ia64-unknown-linux # hack again
+        TargetPlatform=ia64-unknown-linux
+        BuildPlatform=ia64-unknown-linux
+        HostPlatform_CPP='ia64_unknown_linux'
+        HostArch_CPP='ia64'
+        HostVendor_CPP='unknown'
+        HostOS_CPP='linux'
+        ;;
 m68k-next-nextstep2)
         HostPlatform_CPP='m68k_next_nextstep2'
         HostArch_CPP='m68k'
@@ -224,6 +233,24 @@ i[[3456]]86-next-nextstep3)
         HostVendor_CPP='next'
         HostOS_CPP='nextstep3'
         ;;
+m68k-*-openbsd*)
+       HostPlatform=m68k-unknown-openbsd
+       TargetPlatform=m68k-unknown-openbsd
+       BuildPlatform=m68k-unknown-openbsd
+        HostPlatform_CPP='m68k_unknown_openbsd'
+        HostArch_CPP='m68k'
+        HostVendor_CPP='unknown'
+        HostOS_CPP='openbsd'
+        ;;
+m68k-apple-netbsd*)
+       HostPlatform=m68k-apple-netbsd
+       TargetPlatform=m68k-apple-netbsd
+       BuildPlatform=m68k-apple-netbsd
+        HostPlatform_CPP='m68k_apple_netbsd'
+        HostArch_CPP='m68k'
+        HostVendor_CPP='apple'
+        HostOS_CPP='netbsd'
+        ;;
 m68k-sun-sunos4*)
        HostPlatform=m68k-sun-sunos4
        TargetPlatform=m68k-sun-sunos4 #hack
@@ -441,6 +468,10 @@ AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
 fi;
 fi;
 
+dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
+if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
+AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
+fi;
 
 dnl ** Enable multi-thread friendly RTS?
 dnl --------------------------------------------------------------
@@ -477,38 +508,30 @@ if test x"$EnableWin32DLLs" = "xYES" ; then
  AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
 fi
 
+dnl ** Enable the building of the ObjectIO?
+dnl --------------------------------------------------------------
+AC_ARG_ENABLE(objectio,
+[  --enable-objectio
+        Build ObjectIO, a portable GUI library for Haskell.
+        (This option is only relevant when libraries are built.)
+],
+[GhcLibsWithObjectIO=YES],
+[GhcLibsWithObjectIO=NO]
+)
+AC_SUBST(GhcLibsWithObjectIO)
+
 dnl ** Enable the building of the OpenGL/GLUT binding in hslibs?
 dnl --------------------------------------------------------------
 AC_ARG_ENABLE(hopengl,
 [  --enable-hopengl
         Build HOpenGL, a Haskell binding for OpenGL/GLUT, too.
-        (This option is only relevant when hslibs are built.)
+        (NOTE: Work in progress, currently only GLUT is supported!)
 ],
 [GhcLibsWithHOpenGL=YES],
 [GhcLibsWithHOpenGL=NO]
 )
 AC_SUBST(GhcLibsWithHOpenGL)
 
-dnl ** Use a specific version of the GLUT API
-dnl --------------------------------------------------------------
-AC_ARG_WITH(glut-api,
-[  --with-glut-api=<version>
-        Use a specific version of the GLUT API when building HOpenGL.
-])
-test -n "$with_glut_api"  && CPPFLAGS="$CPPFLAGS -DGLUT_API_VERSION=$with_glut_api"
-
-
-dnl ** Use a specific version of the GLUT API
-dnl --------------------------------------------------------------
-AC_ARG_WITH(glut-xlib,
-[  --with-glut-xlib=<version>
-        Use a specific version of the GLUT Xlib implementation when building HOpenGL.
-])
-test -n "$with_glut_xlib" && CPPFLAGS="$CPPFLAGS -DGLUT_XLIB_IMPLEMENTATION=$with_glut_xlib"
-
-
-
-
 dnl --------------------------------------------------------------
 dnl End of configure script option section
 dnl --------------------------------------------------------------
@@ -546,12 +569,16 @@ esac
 dnl ** does #! path/to/perl work? (sometimes it's too long...)
 FPTOOLS_SHEBANG_PERL
 
+dnl ** check for Python
+AC_PATH_PROG(PythonCmd,python)
+
 dnl ** look for GCC and find out which version
 dnl     Figure out which C compiler to use.  Gcc is preferred.
 dnl     If gcc, make sure it's at least 2.1
 dnl
 AC_PROG_CC
 FPTOOLS_HAVE_GCC
+FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
 
 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
 AC_PROG_CPP
@@ -603,7 +630,6 @@ AC_PATH_PROG(SedCmd,sed)
 dnl ** check for time command
 AC_PATH_PROG(TimeCmd,time)
 
-
 dnl ** check for tar
 dnl   if GNU tar is named gtar, look for it first.
 AC_PATH_PROGS(TarCmd,gtar tar,tar)
@@ -614,7 +640,7 @@ AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
 dnl ** check for jade/openjade & determine a working catalog
 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl, 
-                        /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl glafp-utils/docbook/CATALOG*)
+                        /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl /usr/local/share/sgml/catalog glafp-utils/docbook/CATALOG*)
 if test -z "$Catalog"; then
   AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
 fi
@@ -644,6 +670,19 @@ fi
 AC_SUBST(CompressCmd)
 AC_SUBST(CompressSuffix)
 
+dnl ** check for ghc-pkg command
+AC_PATH_PROG(GhcPkgCmd,ghc-pkg)
+
+AC_ARG_WITH(greencard,
+[  --with-greencard=<greencard compiler>
+        Use a command different from 'green-card' to compile GreenCard files
+],
+[
+GreencardCmd=$withval;
+FPTOOLS_GREENCARD(3.00)
+]
+)
+
 AC_ARG_ENABLE(src-tree-happy,
 [  --enable-src-tree-happy
         Build and use source tree (fptools/happy) version of happy.
@@ -657,6 +696,16 @@ if test "$BootingFromHc" = "NO"; then
 FPTOOLS_HAPPY
 fi;
 
+AC_ARG_ENABLE(src-tree-haddock,
+[  --enable-src-tree-haddock
+        Build and use source tree (fptools/haddock) version of haddock.
+],
+[UseSrcTreeHaddock=YES],
+[UseSrcTreeHaddock=NO]
+)
+dnl ** check for installed haddock
+FPTOOLS_HADDOCK
+
 dnl --------------------------------------------------
 dnl ### program checking section ends here ###
 dnl --------------------------------------------------
@@ -670,9 +719,10 @@ AC_HEADER_STDC
 
 dnl ** check for specific header (.h) files that we are interested in
 AC_CHECK_HEADERS(Files.h arpa/inet.h assert.h console.h ctype.h dirent.h errno.h fcntl.h float.h ftw.h grp.h ieee754.h inttypes.h limits.h malloc.h memory.h nlist.h pascal.h pwd.h sgtty.h siginfo.h signal.h stat.h stdint.h stdlib.h stddef.h stdarg.h string.h sys/fault.h sys/file.h sys/ioctl.h sys/limits.h sys/mman.h sys/param.h sys/procfs.h sys/resource.h sys/signal.h sys/socket.h netdb.h netinet/in.h netinet/tcp.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/un.h sys/utsname.h sys/vadvise.h sys/wait.h termio.h termios.h time.h types.h unistd.h utime.h values.h vfork.h bfd.h winsock.h pthread.h sys/uio.h)
+AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
 
-AC_CHECK_HEADER(readline/readline.h, HaveReadlineReadlineH=YES, HaveReadlineReadlineH=NO)
-AC_CHECK_HEADER(readline/history.h, HaveReadlineHistoryH=YES, HaveReadlineHistoryH=NO)
+AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
+AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
 
 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
   HaveReadlineHeaders=YES
@@ -699,14 +749,14 @@ dnl dynamic loading include files
 AC_CHECK_HEADERS(dlfcn.h dl.h) 
 
 dnl ** check for farcalloc (in bcc)
-AC_CHECK_HEADER(alloc.h,AC_CHECK_FUNCS(farcalloc))
+AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
 
 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
-AC_CHECK_HEADER(malloc.h,AC_CHECK_FUNCS(valloc))
+AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
 
 dnl ** check for POSIX regex
 HavePosixRegex=NO
-AC_CHECK_HEADER(regex.h,AC_CHECK_FUNC(regcomp, HavePosixRegex=YES))
+AC_CHECK_HEADER(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
 AC_SUBST(HavePosixRegex)
 
 dnl ** how do we get a timezone name, and UTC offset ?
@@ -725,6 +775,10 @@ AC_STRUCT_ST_BLKSIZE
 dnl ** do we have long longs?
 FPTOOLS_C_LONG_LONG
 
+dnl ** check what fields struct msghdr contains
+FPTOOLS_MSGHDR_MSG_ACCRIGHTS
+FPTOOLS_MSGHDR_MSG_CONTROL
+
 dnl ** what are the sizes of various types
 dnl    (these must come before GHC_CHECK_ALIGNMENT)
 AC_CHECK_SIZEOF(char,               1)
@@ -797,8 +851,10 @@ FPTOOLS_CHECK_HTYPE(uid_t)
 FPTOOLS_CHECK_HTYPE(cc_t)
 FPTOOLS_CHECK_HTYPE(speed_t)
 FPTOOLS_CHECK_HTYPE(tcflag_t)
+FPTOOLS_CHECK_HTYPE(blkcnt_t)
 FPTOOLS_CHECK_HTYPE(nlink_t)
 FPTOOLS_CHECK_HTYPE(ssize_t)
+FPTOOLS_CHECK_HTYPE(rlim_t)
 
 dnl ** Map OpenGL data types to Haskell types
 if test $GhcLibsWithHOpenGL = YES ; then
@@ -818,6 +874,8 @@ FPTOOLS_CHECK_HTYPE(GLdouble)
 FPTOOLS_CHECK_HTYPE(GLclampd)
 fi
 
+FPTOOLS_CHECK_CCONSTS(E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV)
+
 dnl ** can we open files in binary mode?
 FPTOOLS_O_BINARY
 
@@ -894,15 +952,44 @@ AC_CHECK_FUNCS(pclose    _pclose )
 
 
 dnl ** check for specific library functions that we are interested in
-AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat symlink sysconf timelocal times vadvise vfork localtime_r gmtime_r readdir_r)
+AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat symlink sysconf timelocal times vadvise vfork localtime_r gmtime_r readdir_r getgrgid_r getgrnam_r getpwuid_r getpwnam_r)
 
 dnl ** check whether this machine has gmp3 installed
 AC_CHECK_LIB(gmp,  __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
   AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr,  HaveLibGmp=YES; LibGmp=gmp3,
-    HaveLibGmp=No; LibGmp=not-installed))
+    HaveLibGmp=NO; LibGmp=not-installed))
 AC_SUBST(HaveLibGmp)
 AC_SUBST(LibGmp)
 
+dnl ** (Mac OS X only: check for HaskellSupport.framework)
+HaveFrameworkHaskellSupport=NO
+if test $HostPlatform = "powerpc-apple-darwin"; then
+ AC_MSG_CHECKING([for HaskellSupport.framework])
+ save_libs="$LIBS"
+ LIBS="-framework HaskellSupport"
+ AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
+ if test $HaveFrameworkHaskellSupport = YES; then
+  AC_DEFINE(HAVE_FRAMEWORK_HASKELLSUPPORT)
+ fi;
+ LIBS="$save_libs"
+ AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
+fi;
+AC_SUBST(HaveFrameworkHaskellSupport)
+
+dnl ** check for mingwex library
+AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
+AC_SUBST(HaveLibMingwEx)
+
+if test $HaveLibMingwEx = YES ; then
+  AC_DEFINE(HAVE_MINGWEX)
+fi
+
+if test "$HaveLibGmp" = "NO"; then
+if test "$HostArch_CPP" = "ia64"; then
+AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64).])
+fi;
+fi;
+
 dnl ** check whether this machine has GNU regex in libc.
 FPTOOLS_REGEX_IN_LIBC
 
@@ -955,7 +1042,10 @@ mingw32)  ;;
 *) AC_PATH_XTRA() ;;
 esac
 
+dnl ** check for OpenGL/GLUT/GLX include paths and libraries
+if test $GhcLibsWithHOpenGL = YES ; then
 FPTOOLS_HAVE_OPENGL
+fi
 
 dnl ################################################################
 dnl Check for libraries
@@ -963,52 +1053,149 @@ dnl ################################################################
 
 dnl ** check for libdl & RTLD_NEXT
 
-AC_CHECK_LIB(dl, dlopen, 
-       [HaveLibDL=YES
-        AC_DEFINE(HAVE_LIBDL)
-        LIBS="$LIBS -ldl"], 
-       [HaveLibDL=NO])
-AC_CHECK_FUNCS(dlopen)
-AC_SUBST(HaveLibDL)
-
-dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
-AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
-AC_EGREP_CPP(yes,
-[
- #include <dlfcn.h>
- #ifdef RTLD_NEXT
-        yes
- #endif
-], [
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_RTLDNEXT)
-  HaveRtldNext=YES
-], [
-  AC_MSG_RESULT(no)
-  HaveRtldNext=NO
-  ])    
-AC_SUBST(HaveRtldNext)
-
-dnl ** RTLD_LOCAL isn't available on cygwin
-AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
-AC_EGREP_CPP(yes,
-[
- #include <dlfcn.h>
- #ifdef RTLD_LOCAL
-        yes
- #endif
-], [
-  AC_MSG_RESULT(yes)
-  AC_DEFINE(HAVE_RTLDLOCAL)
-  HaveRtldLocal=YES
-], [
-  AC_MSG_RESULT(no)
-  HaveRtldLocal=NO
-  ])    
-AC_SUBST(HaveRtldLocal)
+dnl (Mac OS X only) ... but don't check if we already have the
+dnl HaskellSupport.framework
+
+if test $HaveFrameworkHaskellSupport = YES; then
+    HaveLibDL=NO
+    HaveRtldNext=NO
+    HaveRtldLocal=YES
+    AC_DEFINE(HAVE_RTLDLOCAL)
+    HaveRtldGlobal=YES
+    AC_DEFINE(HAVE_RTLDGLOBAL)
+    HaveRtldNow=YES
+    AC_DEFINE(HAVE_RTLDNOW)
+    AC_SUBST(HaveLibDL)
+    AC_SUBST(HaveRtldNext)
+    AC_SUBST(HaveRtldLocal)
+    AC_SUBST(HaveRtldGlobal)
+    AC_SUBST(HaveRtldNow)
+else
+    AC_CHECK_LIB(dl, dlopen, 
+       [HaveLibDL=YES
+        AC_DEFINE(HAVE_LIBDL)
+        LIBS="$LIBS -ldl"], 
+       [HaveLibDL=NO])
+    AC_CHECK_FUNCS(dlopen)
+    AC_SUBST(HaveLibDL)
+
+    dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
+    AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
+    AC_EGREP_CPP(yes,
+    [
+     #include <dlfcn.h>
+     #ifdef RTLD_NEXT
+            yes
+     #endif
+    ], [
+      AC_MSG_RESULT(yes)
+      AC_DEFINE(HAVE_RTLDNEXT)
+      HaveRtldNext=YES
+    ], [
+      AC_MSG_RESULT(no)
+      HaveRtldNext=NO
+      ])    
+    AC_SUBST(HaveRtldNext)
+
+    dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
+    AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
+    AC_EGREP_CPP(yes,
+    [
+     #include <dlfcn.h>
+     #ifdef RTLD_LOCAL
+            yes
+     #endif
+    ], [
+      AC_MSG_RESULT(yes)
+      AC_DEFINE(HAVE_RTLDLOCAL)
+      HaveRtldLocal=YES
+    ], [
+      AC_MSG_RESULT(no)
+      HaveRtldLocal=NO
+      ])    
+    AC_SUBST(HaveRtldLocal)
+
+    dnl ** RTLD_GLOBAL isn't available on openbsd
+    AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
+    AC_EGREP_CPP(yes,
+    [
+     #include <dlfcn.h>
+     #ifdef RTLD_GLOBAL
+            yes
+     #endif
+    ], [
+      AC_MSG_RESULT(yes)
+      AC_DEFINE(HAVE_RTLDGLOBAL)
+      HaveRtldGlobal=YES
+    ], [
+      AC_MSG_RESULT(no)
+      HaveRtldGlobal=NO
+      ])    
+    AC_SUBST(HaveRtldGlobal)
+
+    dnl ** RTLD_NOW isn't available on openbsd
+    AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
+    AC_EGREP_CPP(yes,
+    [
+     #include <dlfcn.h>
+     #ifdef RTLD_NOW
+            yes
+     #endif
+    ], [
+      AC_MSG_RESULT(yes)
+      AC_DEFINE(HAVE_RTLDNOW)
+      HaveRtldNow=YES
+    ], [
+      AC_MSG_RESULT(no)
+      HaveRtldNow=NO
+      ])    
+    AC_SUBST(HaveRtldNow)
+fi
 
 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
 
+dnl ---------- usleep ----------
+dnl --- stolen from guile configure ---
+dnl --- FIXME: /usr/include/unistd.h can't be right?
+
+### On some systems usleep has no return value.  If it does have one,
+### we'd like to return it; otherwise, we'll fake it.
+AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
+  [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
+                   /usr/include/unistd.h,
+                   [cv_func_usleep_return_type=void],
+                   [cv_func_usleep_return_type=int])])
+case "$cv_func_usleep_return_type" in
+  "void" )
+    AC_DEFINE(USLEEP_RETURNS_VOID, 1,
+      [Define if the system headers declare usleep to return void.])
+  ;;
+esac
+
+dnl --------------------------------------------------
+dnl * test for in_addr_t
+dnl --------------------------------------------------
+AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
+AC_EGREP_HEADER(in_addr_t, netinet/in.h,
+ [ AC_DEFINE(HAVE_IN_ADDR_T) AC_MSG_RESULT(yes) ],
+ AC_MSG_RESULT(no))
+
+dnl --------------------------------------------------
+dnl * test for Linux sendfile(2)
+dnl --------------------------------------------------
+AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
+AC_EGREP_HEADER(sendfile, sys/sendfile.h,
+ [ AC_DEFINE(HAVE_LINUX_SENDFILE) AC_MSG_RESULT(yes) ],
+ AC_MSG_RESULT(no))
+
+dnl --------------------------------------------------
+dnl * test for BSD sendfile(2)
+dnl --------------------------------------------------
+AC_MSG_CHECKING(for sendfile in sys/socket.h)
+AC_EGREP_HEADER(sendfile, sys/socket.h,
+ [ AC_DEFINE(HAVE_BSD_SENDFILE) AC_MSG_RESULT(yes) ],
+ AC_MSG_RESULT(no))
+
 dnl --------------------------------------------------
 dnl * test for GTK+
 dnl --------------------------------------------------
@@ -1057,15 +1244,6 @@ errprint(if you are using 2.13 or earlier, you may get a (harmless) warning mess
 dnl ** check for leading underscores in symbol names
 FPTOOLS_UNDERSCORE
 
-dnl ** how is the end of text section signalled?
-FPTOOLS_END_TEXT_SECTION
-
-dnl ** how is the end of data section signalled?
-FPTOOLS_END_DATA_SECTION
-
-dnl ** code before data?
-FPTOOLS_CODE_BEFORE_DATA
-
 dnl ** check for ld, and whether ld has -x option
 AC_PATH_PROG(LdCmdRaw, ld)
 case $HostOS_CPP in
@@ -1077,4 +1255,31 @@ esac
 AC_SUBST(LdCmd)
 FPTOOLS_LD_X
 
+AC_MSG_CHECKING([for SIGPOLL])
+AC_EGREP_CPP(we_have_sigpoll,
+[#include <signal.h>
+#ifdef SIGPOLL
+we_have_sigpoll
+#endif
+], AC_DEFINE(HAVE_SIGPOLL) haveSIGPOLL=yes, haveSIGPOLL=no)
+AC_MSG_RESULT([$haveSIGPOLL])
+
+AC_MSG_CHECKING(for _SC_GETGR_R_SIZE_MAX)
+AC_EGREP_CPP(we_have_that_sysconf_thing,
+[
+#include <unistd.h>
+#ifdef _SC_GETGR_R_SIZE_MAX
+we_have_that_sysconf_thing
+#endif
+], AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SC_GETGR_R_SIZE_MAX), AC_MSG_RESULT(no))    
+
+AC_MSG_CHECKING(for _SC_GETPW_R_SIZE_MAX)
+AC_EGREP_CPP(we_have_that_sysconf_thing,
+[
+#include <unistd.h>
+#ifdef _SC_GETPW_R_SIZE_MAX
+we_have_that_sysconf_thing
+#endif
+], AC_MSG_RESULT(yes) AC_DEFINE(HAVE_SC_GETPW_R_SIZE_MAX), AC_MSG_RESULT(no))    
+
 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )