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Alex D
GHC
Commits
862106eb
Commit
862106eb
authored
May 03, 2006
by
Simon Marlow
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only pass -fno-unit-at-a-time to gcc if it is supported
parent
70dd3e6b
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+15
-1
aclocal.m4
aclocal.m4
+12
-1
compiler/main/DynFlags.hs
compiler/main/DynFlags.hs
+2
-0
configure.ac
configure.ac
+1
-0
No files found.
aclocal.m4
View file @
862106eb
...
...
@@ -1079,13 +1079,24 @@ AC_SUBST([GhcHasReadline], [`echo $fp_cv_ghc_has_readline | sed 'y/yesno/YESNO/'
AC_DEFUN([FP_GCC_NEEDS_NO_OMIT_LFPTR],
[AC_REQUIRE([FP_HAVE_GCC])
AC_CACHE_CHECK([whether gcc needs -mno-omit-leaf-frame-pointer], [fp_cv_gcc_needs_no_omit_lfptr],
[FP_COMPARE_VERSIONS([$
gcc_version_str
], [-ge], [3.2],
[FP_COMPARE_VERSIONS([$
fp_gcc_version
], [-ge], [3.2],
[fp_cv_gcc_needs_no_omit_lfptr=yes],
[fp_cv_gcc_needs_no_omit_lfptr=no])])
if test "$fp_cv_gcc_needs_no_omit_lfptr" = "yes"; then
AC_DEFINE([HAVE_GCC_MNO_OMIT_LFPTR], [1], [Define to 1 if gcc supports -mno-omit-leaf-frame-pointer.])
fi])# FP_GCC_NEEDS_NO_OMIT_LFPTR
# FP_GCC_HAS_NO_UNIT_AT_A_TIME
# --------------------------
AC_DEFUN([FP_GCC_HAS_NO_UNIT_AT_A_TIME],
[AC_REQUIRE([FP_HAVE_GCC])
AC_CACHE_CHECK([whether gcc has -fno-unit-at-a-time], [fp_cv_gcc_has_no_unit_at_a_time],
[FP_COMPARE_VERSIONS([$fp_gcc_version], [-ge], [3.4],
[fp_cv_gcc_has_no_unit_at_a_time=yes],
[fp_cv_gcc_has_no_unit_at_a_time=no])])
if test "$fp_cv_gcc_has_no_unit_at_a_time" = "yes"; then
AC_DEFINE([HAVE_GCC_HAS_NO_UNIT_AT_A_TIME], [1], [Define to 1 if gcc supports -fno-unit-at-a-time.])
fi])
# FP_SETUP_PROJECT_VERSION
# ---------------------
...
...
compiler/main/DynFlags.hs
View file @
862106eb
...
...
@@ -1267,11 +1267,13 @@ machdepCCOpts dflags
-- and get in the way of -split-objs. Another option
-- would be to throw them away in the mangler, but this
-- is easier.
#
ifdef
HAVE_GCC_HAS_NO_UNIT_AT_A_TIME
"-fno-unit-at-a-time"
,
-- unit-at-a-time doesn't do us any good, and screws
-- up -split-objs by moving the split markers around.
-- It's only turned on with -O2, but put it here just
-- in case someone uses -optc-O2.
#
endif
"-fno-builtin"
-- calling builtins like strlen() using the FFI can
-- cause gcc to run out of regs, so use the external
...
...
configure.ac
View file @
862106eb
...
...
@@ -844,6 +844,7 @@ dnl
FP_HAVE_GCC
FP_MINGW_GCC
FP_GCC_NEEDS_NO_OMIT_LFPTR
FP_GCC_HAS_NO_UNIT_AT_A_TIME
dnl ** figure out how to invoke cpp directly (gcc -E is no good)
AC_PROG_CPP
...
...
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