X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=aclocal.m4;h=bee5085b4ba5b5b93646235a0d04fa7a7659137a;hp=53bd165bec50facecef493a0d1a45c3bc4a30cff;hb=5de363ca9ebdb7d85e3c353c1cffdf0a1c11128e;hpb=30fad70245d9ddfae0b781460bc51468a01f92f6

diff --git a/aclocal.m4 b/aclocal.m4
index 53bd165..bee5085 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -10,15 +10,28 @@
 AC_DEFUN([FPTOOLS_SET_C_LD_FLAGS],
 [
     case $$1 in
-    i386-apple-darwin|powerpc-apple-darwin)
-        $2="$$2 -m32"
-        $3="$$3 -m32"
+    i386-apple-darwin)
+        # By default, gcc on OS X will generate SSE
+        # instructions, which need things 16-byte aligned,
+        # but we don't 16-byte align things. Thus drop
+        # back to generic i686 compatibility. Trac #2983.
+        $2="$$2 -march=i686 -m32"
+        $3="$$3 -march=i686 -m32"
         ;;
     x86_64-apple-darwin)
         $2="$$2 -m64"
         $3="$$3 -m64"
         ;;
     esac
+
+    # If gcc knows about the stack protector, turn it off.
+    # Otherwise the stack-smash handler gets triggered.
+    echo 'int main(void) {return 0;}' > conftest.c
+    if $CC -c conftest.c -fno-stack-protector > /dev/null 2>&1
+    then
+        $2="$$2 -fno-stack-protector"
+    fi
+    rm conftest.c conftest.o
 ])
 
 
@@ -141,7 +154,7 @@ AC_DEFUN([FP_COMPUTE_INT],
 # A variation of AC_CHECK_SIZEOF for computing the alignment restrictions of a
 # given type. Defines ALIGNMENT_TYPE.
 AC_DEFUN([FP_CHECK_ALIGNMENT],
-[AS_LITERAL_IF([$1], [],
+[AS_LITERAL_IF(m4_translit([[$1]], [*], [p]), [],
                [AC_FATAL([$0: requires literal arguments])])[]dnl
 AC_CHECK_TYPE([$1], [], [], [$3])[]dnl
 m4_pushdef([fp_Cache], [AS_TR_SH([fp_cv_alignment_$1])])[]dnl
@@ -1253,7 +1266,7 @@ if test ! -f utils/ghc-pwd/ghc-pwd && test ! -f utils/ghc-pwd/ghc-pwd.exe; then
   rm -f *.hi
   rm -f ghc-pwd
   rm -f ghc-pwd.exe
-  "$WithGhc" -v0 --make ghc-pwd -o ghc-pwd
+  "$WithGhc" -v0 -no-user-package-conf --make ghc-pwd -o ghc-pwd
   cd ../..
 fi