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Reapply majority of r55557 but with the changes to compilation flags

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disabled until issues with gcc 4.1 on linux 32-bit are resolved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55636 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2008-09-02 17:35:16 +00:00
parent 5b8dbf839b
commit ecfe67c217
4 changed files with 31 additions and 0 deletions
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3
Makefile.config.in
View File

@ -234,6 +234,9 @@ ENABLE_THREADS := @ENABLE_THREADS@
# Do we want to build with position independent code?
ENABLE_PIC := @ENABLE_PIC@
# Use -fvisibility-inlines-hidden?
ENABLE_VISIBILITY_INLINES_HIDDEN := @ENABLE_VISIBILITY_INLINES_HIDDEN@
# This option tells the Makefiles to produce verbose output.
# It essentially prints the commands that make is executing
#VERBOSE = 1

4
Makefile.rules
View File

@ -241,6 +241,10 @@ else
endif
endif
#ifeq ($(ENABLE_VISIBILITY_INLINES_HIDDEN),1)
# CXX.Flags += -fvisibility-inlines-hidden
#endif
# IF REQUIRES_EH=1 is specified then don't disable exceptions
ifndef REQUIRES_EH
CXX.Flags += -fno-exceptions

2
autoconf/configure.ac
View File

@ -975,6 +975,8 @@ if test "$binding_prereqs_failed" = 1 ; then
AC_MSG_ERROR([Prequisites for bindings not satisfied. Fix them or use configure --disable-bindings.])
fi
dnl Determine if the compiler supports -fvisibility-inlines-hidden.
AC_CXX_USE_VISIBILITY_INLINES_HIDDEN
dnl===-----------------------------------------------------------------------===
dnl===

22
autoconf/m4/visibility_inlines_hidden.m4 Normal file
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@ -0,0 +1,22 @@
#
# Determine if the compiler accepts -fvisibility-inlines-hidden
#
# This macro is specific to LLVM.
#
AC_DEFUN([AC_CXX_USE_VISIBILITY_INLINES_HIDDEN],
[AC_CACHE_CHECK([for compiler -fvisibility-inlines-hidden option],
[llvm_cv_cxx_visibility_inlines_hidden],
[ AC_LANG_PUSH([C++])
oldcxxflags="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fvisibility-inlines-hidden"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
[llvm_cv_cxx_visibility_inlines_hidden=yes],[llvm_cv_cxx_visibility_inlines_hidden=no])
CXXFLAGS="$oldcxxflags"
AC_LANG_POP([C++])
])
if test "$llvm_cv_cxx_visibility_inlines_hidden" = yes ; then
AC_SUBST([ENABLE_VISIBILITY_INLINES_HIDDEN],[1])
else
AC_SUBST([ENABLE_VISIBILITY_INLINES_HIDDEN],[0])
fi
])