X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=aclocal.m4;h=9622084a4dd8239ef2860a1a9dec684f4675815d;hb=366614a9a33b30c2273d2c63b3435259f729314b;hp=85a1ee20b27f4f930cdc7720c5b0b367bd512bd7;hpb=2f330af4eeeae4562d9ea9eeaec7571901481f8c;p=ghc-hetmet.git

diff --git a/aclocal.m4 b/aclocal.m4
index 85a1ee2..9622084 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -56,38 +56,6 @@ AC_DEFUN([FP_EVAL_STDERR],
 ])# FP_EVAL_STDERR
 
 
-# FP_CHECK_FLAG(FLAG, [ACTION-IF-SUPPORTED], [ACTION-IF-NOT-SUPPORTED])
-# ---------------------------------------------------------------------
-# Check to see whether the compiler for the current language supports a
-# particular option.
-#
-# Implementation note: When given an unkown option, GCC issues an warning on
-# stderr only, but returns an exit value of 0 nevertheless. Consequently we have
-# to check stderr *and* the exit value.
-#
-# Used by ghc.
-AC_DEFUN([FP_CHECK_FLAG],
-[AC_LANG_COMPILER_REQUIRE()dnl
-AC_LANG_CASE([C],          [fp_compiler="$CC"  m4_pushdef([fp_Flags], [CFLAGS])],
-             [C++],        [fp_compiler="$CXX" m4_pushdef([fp_Flags], [CXXFLAGS])],
-             [Fortran 77], [fp_compiler="$F77" m4_pushdef([fp_Flags], [FFLAGS])])
-m4_pushdef([fp_Cache], [fp_cv_[]fp_Flags[]AS_TR_SH([$1])])[]dnl
-AC_CACHE_CHECK([whether $fp_compiler accepts $1], [fp_Cache],
-[AC_LANG_CONFTEST([AC_LANG_PROGRAM()])
-fp_save_flags="$fp_Flags"
-fp_Flags="$fp_Flags $1"
-fp_Cache=no
-if FP_EVAL_STDERR([$ac_compile conftest.$ac_ext]) >/dev/null; then
-  test -s conftest.err || fp_Cache=yes
-fi
-fp_Flags="$fp_save_flags"
-rm -f conftest.err conftest.$ac_ext])
-AS_IF([test $fp_Cache = yes], [$2], [$3])[]dnl
-m4_popdef([fp_Cache])[]dnl
-m4_popdef([fp_Flags])[]dnl
-])# FP_CHECK_FLAG
-
-
 # FP_PROG_CONTEXT_DIFF
 # --------------------
 # Figure out how to do context diffs. Sets the output variable ContextDiffCmd.
@@ -100,7 +68,7 @@ AC_DEFUN([FP_PROG_CONTEXT_DIFF],
 [echo foo > conftest1
 echo foo > conftest2
 fp_cv_context_diff=no
-for fp_var in '-C 1' '-c1'
+for fp_var in '-U 1' '-u1' '-C 1' '-c1'
 do
   if diff $fp_var conftest1 conftest2 > /dev/null 2>&1; then
     fp_cv_context_diff="diff $fp_var"
@@ -268,6 +236,16 @@ dnl for a happy source tree and point the build system at that instead.
 dnl
 AC_DEFUN([FPTOOLS_HAPPY],
 [AC_PATH_PROG(HappyCmd,happy,)
+# Happy is passed to Cabal, so we need a native path
+if test "x$HostPlatform"  = "xi386-unknown-mingw32" && \
+   test "${OSTYPE}"      != "msys"                  && \
+   test "${HappyCmd}"    != ""
+then
+    # Canonicalise to <drive>:/path/to/gcc
+    HappyCmd=`cygpath -m ${HappyCmd}`
+    AC_MSG_NOTICE([normalized happy command to $HappyCmd])
+fi
+
 AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
 changequote(, )dnl
 [if test x"$HappyCmd" != x; then
@@ -297,6 +275,15 @@ dnl Darn, I forgot to make Haddock print out its version number when
 dnl invoked with -v.  We could try generating some HTML and grepping
 dnl through that to find the version number, but I think we'll make
 dnl do without it for now.
+# Haddock is passed to Cabal, so we need a native path
+if test "x$HostPlatform"  = "xi386-unknown-mingw32" && \
+   test "${OSTYPE}"      != "msys"                  && \
+   test "${HaddockCmd}"  != ""
+then
+    # Canonicalise to <drive>:/path/to/gcc
+    HaddockCmd=`cygpath -m ${HaddockCmd}`
+    AC_MSG_NOTICE([normalized haddock command to $HaddockCmd])
+fi
 ])
 
 dnl
@@ -306,6 +293,15 @@ dnl
 AC_DEFUN([FPTOOLS_ALEX],
 [
 AC_PATH_PROG(AlexCmd,alex,)
+# Alex is passed to Cabal, so we need a native path
+if test "x$HostPlatform"  = "xi386-unknown-mingw32" && \
+   test "${OSTYPE}"      != "msys"                  && \
+   test "${AlexCmd}"     != ""
+then
+    # Canonicalise to <drive>:/path/to/gcc
+    AlexCmd=`cygpath -m ${AlexCmd}`
+fi
+
 AC_CACHE_CHECK([for version of alex], fptools_cv_alex_version,
 changequote(, )dnl
 [if test x"$AlexCmd" != x; then
@@ -984,6 +980,11 @@ AC_CACHE_CHECK([for extra options to pass gcc when compiling via C], [fp_cv_gcc_
      )],
      [])
   ;;
+  sparc-*-solaris2) 
+    FP_COMPARE_VERSIONS([$fp_gcc_version], [-ge], [4.2],
+      [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-toplevel-reorder"],
+      [])
+  ;;
  esac
 ])
 AC_SUBST([GccExtraViaCOpts],$fp_cv_gcc_extra_opts)
@@ -1072,6 +1073,13 @@ static void handler(int i)
    tock = 1;
 }
 
+static void timeout(int i)
+{
+  // timer_settime() has been known to hang, so just in case
+  // we install a 1-second timeout (see #2257)
+  exit(99);
+}
+
 int main(int argc, char *argv[])
 {
 
@@ -1092,6 +1100,15 @@ int main(int argc, char *argv[])
         exit(3);
     }
 
+    action.sa_handler = timeout;
+    action.sa_flags = 0;
+    sigemptyset(&action.sa_mask);
+    if (sigaction(SIGALRM, &action, NULL) == -1) {
+      fprintf(stderr,"SIGALRM problem\n");
+      exit(3);
+    }
+    alarm(1);
+
     if (timer_create(CLOCK_PROCESS_CPUTIME_ID, &ev, &timer) != 0) {
         fprintf(stderr,"No CLOCK_PROCESS_CPUTIME_ID timer\n");
        exit(1);
@@ -1116,7 +1133,7 @@ int main(int argc, char *argv[])
 out:
 
     if (!tock) {
-        fprintf(stderr,"no CLOCK_REALTIME signal\n");
+        fprintf(stderr,"no CLOCK_PROCESS_CPUTIME_ID signal\n");
         exit(5);
     }
 
@@ -1128,7 +1145,7 @@ out:
     }
 
     it.it_value.tv_sec = 0;
-    it.it_value.tv_nsec = 1;
+    it.it_value.tv_nsec = 1000000;
     it.it_interval = it.it_value;
     if (timer_settime(timer, 0, &it, NULL) != 0) {
         fprintf(stderr,"settime problem\n");