Sync from gcc/
PR lto/46273 * configure.ac: Remove libelf tests. Build lto-plugin on ELF always and on other supported platforms whenever LTO is enabled. * configure: Rebuild.
This commit is contained in:
Dave Korn
parent
cc353b9f34
commit
5e504c84e1
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@ -1,3 +1,11 @@
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2010-11-03 Ian Lance Taylor <iant@google.com>
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Dave Korn <dave.korn.cygwin@gmail.com>
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PR lto/46273
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* configure.ac: Remove libelf tests. Build lto-plugin on ELF always
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and on other supported platforms whenever LTO is enabled.
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* configure: Rebuild.
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2010-11-02 Alan Modra <amodra@gmail.com>
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PR binutils/12110
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@ -553,42 +553,6 @@ PACKAGE_URL=
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ac_unique_file="move-if-change"
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enable_option_checking=no
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# Factoring default headers for most tests.
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ac_includes_default="\
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#include <stdio.h>
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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# include <stddef.h>
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#else
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# ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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# endif
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#endif
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#ifdef HAVE_STRING_H
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# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
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# include <memory.h>
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# endif
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#ifdef HAVE_INTTYPES_H
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# include <inttypes.h>
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#endif
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#ifdef HAVE_STDINT_H
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# include <stdint.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif"
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ac_subst_vars='LTLIBOBJS
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LIBOBJS
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compare_exclusions
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@ -675,11 +639,6 @@ DEBUG_PREFIX_CFLAGS_FOR_TARGET
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SYSROOT_CFLAGS_FOR_TARGET
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stage1_languages
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extra_host_libiberty_configure_flags
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libelfinc
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libelflibs
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EGREP
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GREP
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CPP
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clooginc
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clooglibs
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pplinc
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@ -808,9 +767,6 @@ with_cloog_include
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with_cloog_lib
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enable_cloog_version_check
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enable_lto
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with_libelf
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with_libelf_include
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with_libelf_lib
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enable_stage1_languages
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enable_objc_gc
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with_build_sysroot
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@ -834,7 +790,6 @@ CPPFLAGS
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CXX
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CXXFLAGS
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CCC
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CPP
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build_configargs
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host_configargs
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target_configargs
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@ -1552,11 +1507,6 @@ Optional Packages:
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plus --with-cloog-lib=PATH/lib
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--with-cloog-include=PATH Specify directory for installed CLooG include files
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--with-cloog-lib=PATH Specify the directory for the installed CLooG library
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--with-libelf=PATH Specify prefix directory for the installed libelf package
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Equivalent to --with-libelf-include=PATH/include
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plus --with-libelf-lib=PATH/lib
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--with-libelf-include=PATH Specify directory for installed libelf include files
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--with-libelf-lib=PATH Specify the directory for the installed libelf library
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--with-build-sysroot=SYSROOT
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use sysroot as the system root during the build
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--with-debug-prefix-map='A=B C=D ...'
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@ -1576,7 +1526,6 @@ Some influential environment variables:
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you have headers in a nonstandard directory <include dir>
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CXX C++ compiler command
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CXXFLAGS C++ compiler flags
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CPP C preprocessor
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build_configargs
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additional configure arguments for build directories
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host_configargs
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@ -1829,203 +1778,6 @@ fi
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return $ac_retval
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} # ac_fn_c_try_link
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# ac_fn_c_try_cpp LINENO
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# ----------------------
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# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
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ac_fn_c_try_cpp ()
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{
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as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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if { { ac_try="$ac_cpp conftest.$ac_ext"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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$as_echo "$ac_try_echo"; } >&5
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(eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
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ac_status=$?
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if test -s conftest.err; then
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grep -v '^ *+' conftest.err >conftest.er1
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cat conftest.er1 >&5
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mv -f conftest.er1 conftest.err
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fi
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; } >/dev/null && {
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test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
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test ! -s conftest.err
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}; then :
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ac_retval=0
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else
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$as_echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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ac_retval=1
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fi
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eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
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return $ac_retval
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} # ac_fn_c_try_cpp
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# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
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# -------------------------------------------------------
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# Tests whether HEADER exists, giving a warning if it cannot be compiled using
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# the include files in INCLUDES and setting the cache variable VAR
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# accordingly.
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ac_fn_c_check_header_mongrel ()
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{
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as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
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$as_echo_n "checking for $2... " >&6; }
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if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
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$as_echo_n "(cached) " >&6
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fi
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eval ac_res=\$$3
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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else
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# Is the header compilable?
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
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$as_echo_n "checking $2 usability... " >&6; }
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$4
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#include <$2>
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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ac_header_compiler=yes
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else
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ac_header_compiler=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
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$as_echo "$ac_header_compiler" >&6; }
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# Is the header present?
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
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$as_echo_n "checking $2 presence... " >&6; }
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <$2>
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_ACEOF
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if ac_fn_c_try_cpp "$LINENO"; then :
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ac_header_preproc=yes
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else
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ac_header_preproc=no
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fi
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rm -f conftest.err conftest.$ac_ext
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
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$as_echo "$ac_header_preproc" >&6; }
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# So? What about this header?
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case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
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yes:no: )
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
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$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
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$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
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;;
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no:yes:* )
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
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$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: check for missing prerequisite headers?" >&5
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$as_echo "$as_me: WARNING: $2: check for missing prerequisite headers?" >&2;}
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
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$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&5
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$as_echo "$as_me: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&2;}
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
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$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
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;;
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esac
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
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$as_echo_n "checking for $2... " >&6; }
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if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
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$as_echo_n "(cached) " >&6
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else
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eval "$3=\$ac_header_compiler"
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fi
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eval ac_res=\$$3
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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fi
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eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
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} # ac_fn_c_check_header_mongrel
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# ac_fn_c_try_run LINENO
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# ----------------------
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# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
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# that executables *can* be run.
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ac_fn_c_try_run ()
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{
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as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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if { { ac_try="$ac_link"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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$as_echo "$ac_try_echo"; } >&5
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(eval "$ac_link") 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
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{ { case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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$as_echo "$ac_try_echo"; } >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then :
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ac_retval=0
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else
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$as_echo "$as_me: program exited with status $ac_status" >&5
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$as_echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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ac_retval=$ac_status
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fi
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rm -rf conftest.dSYM conftest_ipa8_conftest.oo
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eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
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return $ac_retval
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} # ac_fn_c_try_run
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# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
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# -------------------------------------------------------
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# Tests whether HEADER exists and can be compiled using the include files in
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# INCLUDES, setting the cache variable VAR accordingly.
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ac_fn_c_check_header_compile ()
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{
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as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
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$as_echo_n "checking for $2... " >&6; }
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if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$4
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#include <$2>
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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eval "$3=yes"
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else
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eval "$3=no"
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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eval ac_res=\$$3
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
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$as_echo "$ac_res" >&6; }
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eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
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} # ac_fn_c_check_header_compile
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cat >config.log <<_ACEOF
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This file contains any messages produced by compilers while
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running configure, to aid debugging if configure makes a mistake.
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@ -6023,405 +5775,6 @@ fi
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ac_ext=c
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ac_cpp='$CPP $CPPFLAGS'
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ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_c_compiler_gnu
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
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$as_echo_n "checking how to run the C preprocessor... " >&6; }
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# On Suns, sometimes $CPP names a directory.
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if test -n "$CPP" && test -d "$CPP"; then
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CPP=
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fi
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if test -z "$CPP"; then
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if test "${ac_cv_prog_CPP+set}" = set; then :
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$as_echo_n "(cached) " >&6
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else
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# Double quotes because CPP needs to be expanded
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for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
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do
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ac_preproc_ok=false
|
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for ac_c_preproc_warn_flag in '' yes
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do
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# Use a header file that comes with gcc, so configuring glibc
|
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# with a fresh cross-compiler works.
|
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# Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
|
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# <limits.h> exists even on freestanding compilers.
|
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# On the NeXT, cc -E runs the code through the compiler's parser,
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# not just through cpp. "Syntax error" is here to catch this case.
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#ifdef __STDC__
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# include <limits.h>
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#else
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# include <assert.h>
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#endif
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Syntax error
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_ACEOF
|
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if ac_fn_c_try_cpp "$LINENO"; then :
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|
||||
else
|
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# Broken: fails on valid input.
|
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continue
|
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fi
|
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rm -f conftest.err conftest.$ac_ext
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|
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# OK, works on sane cases. Now check whether nonexistent headers
|
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# can be detected and how.
|
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <ac_nonexistent.h>
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_ACEOF
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if ac_fn_c_try_cpp "$LINENO"; then :
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# Broken: success on invalid input.
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continue
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else
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# Passes both tests.
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ac_preproc_ok=:
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break
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fi
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rm -f conftest.err conftest.$ac_ext
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done
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# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
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rm -f conftest.err conftest.$ac_ext
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if $ac_preproc_ok; then :
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break
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fi
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done
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ac_cv_prog_CPP=$CPP
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fi
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CPP=$ac_cv_prog_CPP
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else
|
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ac_cv_prog_CPP=$CPP
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
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$as_echo "$CPP" >&6; }
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ac_preproc_ok=false
|
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for ac_c_preproc_warn_flag in '' yes
|
||||
do
|
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# Use a header file that comes with gcc, so configuring glibc
|
||||
# with a fresh cross-compiler works.
|
||||
# Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
|
||||
# <limits.h> exists even on freestanding compilers.
|
||||
# On the NeXT, cc -E runs the code through the compiler's parser,
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# not just through cpp. "Syntax error" is here to catch this case.
|
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#ifdef __STDC__
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# include <limits.h>
|
||||
#else
|
||||
# include <assert.h>
|
||||
#endif
|
||||
Syntax error
|
||||
_ACEOF
|
||||
if ac_fn_c_try_cpp "$LINENO"; then :
|
||||
|
||||
else
|
||||
# Broken: fails on valid input.
|
||||
continue
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_ext
|
||||
|
||||
# OK, works on sane cases. Now check whether nonexistent headers
|
||||
# can be detected and how.
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <ac_nonexistent.h>
|
||||
_ACEOF
|
||||
if ac_fn_c_try_cpp "$LINENO"; then :
|
||||
# Broken: success on invalid input.
|
||||
continue
|
||||
else
|
||||
# Passes both tests.
|
||||
ac_preproc_ok=:
|
||||
break
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_ext
|
||||
|
||||
done
|
||||
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
|
||||
rm -f conftest.err conftest.$ac_ext
|
||||
if $ac_preproc_ok; then :
|
||||
|
||||
else
|
||||
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
|
||||
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
|
||||
as_fn_error "C preprocessor \"$CPP\" fails sanity check
|
||||
See \`config.log' for more details." "$LINENO" 5; }
|
||||
fi
|
||||
|
||||
ac_ext=c
|
||||
ac_cpp='$CPP $CPPFLAGS'
|
||||
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
|
||||
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
|
||||
ac_compiler_gnu=$ac_cv_c_compiler_gnu
|
||||
|
||||
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
|
||||
$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
|
||||
if test "${ac_cv_path_GREP+set}" = set; then :
|
||||
$as_echo_n "(cached) " >&6
|
||||
else
|
||||
if test -z "$GREP"; then
|
||||
ac_path_GREP_found=false
|
||||
# Loop through the user's path and test for each of PROGNAME-LIST
|
||||
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
|
||||
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
|
||||
do
|
||||
IFS=$as_save_IFS
|
||||
test -z "$as_dir" && as_dir=.
|
||||
for ac_prog in grep ggrep; do
|
||||
for ac_exec_ext in '' $ac_executable_extensions; do
|
||||
ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
|
||||
{ test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
|
||||
# Check for GNU ac_path_GREP and select it if it is found.
|
||||
# Check for GNU $ac_path_GREP
|
||||
case `"$ac_path_GREP" --version 2>&1` in
|
||||
*GNU*)
|
||||
ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
|
||||
*)
|
||||
ac_count=0
|
||||
$as_echo_n 0123456789 >"conftest.in"
|
||||
while :
|
||||
do
|
||||
cat "conftest.in" "conftest.in" >"conftest.tmp"
|
||||
mv "conftest.tmp" "conftest.in"
|
||||
cp "conftest.in" "conftest.nl"
|
||||
$as_echo 'GREP' >> "conftest.nl"
|
||||
"$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
|
||||
diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
|
||||
as_fn_arith $ac_count + 1 && ac_count=$as_val
|
||||
if test $ac_count -gt ${ac_path_GREP_max-0}; then
|
||||
# Best one so far, save it but keep looking for a better one
|
||||
ac_cv_path_GREP="$ac_path_GREP"
|
||||
ac_path_GREP_max=$ac_count
|
||||
fi
|
||||
# 10*(2^10) chars as input seems more than enough
|
||||
test $ac_count -gt 10 && break
|
||||
done
|
||||
rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
|
||||
esac
|
||||
|
||||
$ac_path_GREP_found && break 3
|
||||
done
|
||||
done
|
||||
done
|
||||
IFS=$as_save_IFS
|
||||
if test -z "$ac_cv_path_GREP"; then
|
||||
as_fn_error "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
|
||||
fi
|
||||
else
|
||||
ac_cv_path_GREP=$GREP
|
||||
fi
|
||||
|
||||
fi
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
|
||||
$as_echo "$ac_cv_path_GREP" >&6; }
|
||||
GREP="$ac_cv_path_GREP"
|
||||
|
||||
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
|
||||
$as_echo_n "checking for egrep... " >&6; }
|
||||
if test "${ac_cv_path_EGREP+set}" = set; then :
|
||||
$as_echo_n "(cached) " >&6
|
||||
else
|
||||
if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
|
||||
then ac_cv_path_EGREP="$GREP -E"
|
||||
else
|
||||
if test -z "$EGREP"; then
|
||||
ac_path_EGREP_found=false
|
||||
# Loop through the user's path and test for each of PROGNAME-LIST
|
||||
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
|
||||
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
|
||||
do
|
||||
IFS=$as_save_IFS
|
||||
test -z "$as_dir" && as_dir=.
|
||||
for ac_prog in egrep; do
|
||||
for ac_exec_ext in '' $ac_executable_extensions; do
|
||||
ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
|
||||
{ test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
|
||||
# Check for GNU ac_path_EGREP and select it if it is found.
|
||||
# Check for GNU $ac_path_EGREP
|
||||
case `"$ac_path_EGREP" --version 2>&1` in
|
||||
*GNU*)
|
||||
ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
|
||||
*)
|
||||
ac_count=0
|
||||
$as_echo_n 0123456789 >"conftest.in"
|
||||
while :
|
||||
do
|
||||
cat "conftest.in" "conftest.in" >"conftest.tmp"
|
||||
mv "conftest.tmp" "conftest.in"
|
||||
cp "conftest.in" "conftest.nl"
|
||||
$as_echo 'EGREP' >> "conftest.nl"
|
||||
"$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
|
||||
diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
|
||||
as_fn_arith $ac_count + 1 && ac_count=$as_val
|
||||
if test $ac_count -gt ${ac_path_EGREP_max-0}; then
|
||||
# Best one so far, save it but keep looking for a better one
|
||||
ac_cv_path_EGREP="$ac_path_EGREP"
|
||||
ac_path_EGREP_max=$ac_count
|
||||
fi
|
||||
# 10*(2^10) chars as input seems more than enough
|
||||
test $ac_count -gt 10 && break
|
||||
done
|
||||
rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
|
||||
esac
|
||||
|
||||
$ac_path_EGREP_found && break 3
|
||||
done
|
||||
done
|
||||
done
|
||||
IFS=$as_save_IFS
|
||||
if test -z "$ac_cv_path_EGREP"; then
|
||||
as_fn_error "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
|
||||
fi
|
||||
else
|
||||
ac_cv_path_EGREP=$EGREP
|
||||
fi
|
||||
|
||||
fi
|
||||
fi
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
|
||||
$as_echo "$ac_cv_path_EGREP" >&6; }
|
||||
EGREP="$ac_cv_path_EGREP"
|
||||
|
||||
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
|
||||
$as_echo_n "checking for ANSI C header files... " >&6; }
|
||||
if test "${ac_cv_header_stdc+set}" = set; then :
|
||||
$as_echo_n "(cached) " >&6
|
||||
else
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <stdlib.h>
|
||||
#include <stdarg.h>
|
||||
#include <string.h>
|
||||
#include <float.h>
|
||||
|
||||
int
|
||||
main ()
|
||||
{
|
||||
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_compile "$LINENO"; then :
|
||||
ac_cv_header_stdc=yes
|
||||
else
|
||||
ac_cv_header_stdc=no
|
||||
fi
|
||||
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
|
||||
|
||||
if test $ac_cv_header_stdc = yes; then
|
||||
# SunOS 4.x string.h does not declare mem*, contrary to ANSI.
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <string.h>
|
||||
|
||||
_ACEOF
|
||||
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
|
||||
$EGREP "memchr" >/dev/null 2>&1; then :
|
||||
|
||||
else
|
||||
ac_cv_header_stdc=no
|
||||
fi
|
||||
rm -f conftest*
|
||||
|
||||
fi
|
||||
|
||||
if test $ac_cv_header_stdc = yes; then
|
||||
# ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <stdlib.h>
|
||||
|
||||
_ACEOF
|
||||
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
|
||||
$EGREP "free" >/dev/null 2>&1; then :
|
||||
|
||||
else
|
||||
ac_cv_header_stdc=no
|
||||
fi
|
||||
rm -f conftest*
|
||||
|
||||
fi
|
||||
|
||||
if test $ac_cv_header_stdc = yes; then
|
||||
# /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
|
||||
if test "$cross_compiling" = yes; then :
|
||||
:
|
||||
else
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <ctype.h>
|
||||
#include <stdlib.h>
|
||||
#if ((' ' & 0x0FF) == 0x020)
|
||||
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
|
||||
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
|
||||
#else
|
||||
# define ISLOWER(c) \
|
||||
(('a' <= (c) && (c) <= 'i') \
|
||||
|| ('j' <= (c) && (c) <= 'r') \
|
||||
|| ('s' <= (c) && (c) <= 'z'))
|
||||
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
|
||||
#endif
|
||||
|
||||
#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
|
||||
int
|
||||
main ()
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < 256; i++)
|
||||
if (XOR (islower (i), ISLOWER (i))
|
||||
|| toupper (i) != TOUPPER (i))
|
||||
return 2;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_run "$LINENO"; then :
|
||||
|
||||
else
|
||||
ac_cv_header_stdc=no
|
||||
fi
|
||||
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
|
||||
conftest.$ac_objext conftest.beam conftest.$ac_ext
|
||||
fi
|
||||
|
||||
fi
|
||||
fi
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
|
||||
$as_echo "$ac_cv_header_stdc" >&6; }
|
||||
if test $ac_cv_header_stdc = yes; then
|
||||
|
||||
$as_echo "#define STDC_HEADERS 1" >>confdefs.h
|
||||
|
||||
fi
|
||||
|
||||
# On IRIX 5.3, sys/types and inttypes.h are conflicting.
|
||||
for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
|
||||
inttypes.h stdint.h unistd.h
|
||||
do :
|
||||
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
|
||||
ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
|
||||
"
|
||||
eval as_val=\$$as_ac_Header
|
||||
if test "x$as_val" = x""yes; then :
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
|
||||
_ACEOF
|
||||
|
||||
fi
|
||||
|
||||
done
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
target_elf=no
|
||||
|
|
@ -6437,258 +5790,14 @@ case $target in
|
|||
esac
|
||||
|
||||
if test $target_elf = yes; then :
|
||||
if test x"$enable_lto" = x"yes" ; then
|
||||
# Make sure that libelf.h and gelf.h are available.
|
||||
# ELF platforms build the lto-plugin always.
|
||||
build_lto_plugin=yes
|
||||
|
||||
# Check whether --with-libelf was given.
|
||||
if test "${with_libelf+set}" = set; then :
|
||||
withval=$with_libelf;
|
||||
fi
|
||||
|
||||
|
||||
|
||||
# Check whether --with-libelf_include was given.
|
||||
if test "${with_libelf_include+set}" = set; then :
|
||||
withval=$with_libelf_include;
|
||||
fi
|
||||
|
||||
|
||||
|
||||
# Check whether --with-libelf_lib was given.
|
||||
if test "${with_libelf_lib+set}" = set; then :
|
||||
withval=$with_libelf_lib;
|
||||
fi
|
||||
|
||||
|
||||
saved_CFLAGS="$CFLAGS"
|
||||
saved_CPPFLAGS="$CPPFLAGS"
|
||||
saved_LIBS="$LIBS"
|
||||
|
||||
case $with_libelf in
|
||||
"")
|
||||
libelflibs="-lelf"
|
||||
libelfinc="-I/usr/include/libelf"
|
||||
;;
|
||||
*)
|
||||
libelflibs="-L$with_libelf/lib -lelf"
|
||||
libelfinc="-I$with_libelf/include -I$with_libelf/include/libelf"
|
||||
LIBS="$libelflibs $LIBS"
|
||||
;;
|
||||
esac
|
||||
|
||||
if test "x$with_libelf_include" != x; then
|
||||
libelfinc="-I$with_libelf_include"
|
||||
fi
|
||||
|
||||
if test "x$with_libelf_lib" != x; then
|
||||
libelflibs="-L$with_libelf_lib -lelf"
|
||||
LIBS="$libelflibs $LIBS"
|
||||
fi
|
||||
|
||||
if test "x$with_libelf$with_libelf_include$with_libelf_lib" = x \
|
||||
&& test -d ${srcdir}/libelf; then
|
||||
libelflibs='-L$$r/$(HOST_SUBDIR)/libelf/lib -lelf '
|
||||
libelfinc='-D__LIBELF_INTERNAL__ -I$$r/$(HOST_SUBDIR)/libelf/lib -I$$s/libelf/lib'
|
||||
LIBS="$libelflibs $LIBS"
|
||||
|
||||
else
|
||||
|
||||
CFLAGS="$CFLAGS $libelfinc"
|
||||
CPPFLAGS="$CPPFLAGS $libelfinc"
|
||||
LIBS="$LIBS $libelflibs"
|
||||
|
||||
for ac_header in libelf.h
|
||||
do :
|
||||
ac_fn_c_check_header_mongrel "$LINENO" "libelf.h" "ac_cv_header_libelf_h" "$ac_includes_default"
|
||||
if test "x$ac_cv_header_libelf_h" = x""yes; then :
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define HAVE_LIBELF_H 1
|
||||
_ACEOF
|
||||
have_libelf_h=yes
|
||||
fi
|
||||
|
||||
done
|
||||
|
||||
for ac_header in gelf.h
|
||||
do :
|
||||
ac_fn_c_check_header_mongrel "$LINENO" "gelf.h" "ac_cv_header_gelf_h" "$ac_includes_default"
|
||||
if test "x$ac_cv_header_gelf_h" = x""yes; then :
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define HAVE_GELF_H 1
|
||||
_ACEOF
|
||||
have_gelf_h=yes
|
||||
fi
|
||||
|
||||
done
|
||||
|
||||
|
||||
for ac_header in libelf/libelf.h
|
||||
do :
|
||||
ac_fn_c_check_header_mongrel "$LINENO" "libelf/libelf.h" "ac_cv_header_libelf_libelf_h" "$ac_includes_default"
|
||||
if test "x$ac_cv_header_libelf_libelf_h" = x""yes; then :
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define HAVE_LIBELF_LIBELF_H 1
|
||||
_ACEOF
|
||||
have_libelf_libelf_h=yes
|
||||
fi
|
||||
|
||||
done
|
||||
|
||||
for ac_header in libelf/gelf.h
|
||||
do :
|
||||
ac_fn_c_check_header_mongrel "$LINENO" "libelf/gelf.h" "ac_cv_header_libelf_gelf_h" "$ac_includes_default"
|
||||
if test "x$ac_cv_header_libelf_gelf_h" = x""yes; then :
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define HAVE_LIBELF_GELF_H 1
|
||||
_ACEOF
|
||||
have_libelf_gelf_h=yes
|
||||
fi
|
||||
|
||||
done
|
||||
|
||||
|
||||
# If we couldn't find libelf.h and the user forced it, emit an error.
|
||||
if test x"$have_libelf_h" != x"yes" \
|
||||
&& test x"$have_libelf_libelf_h" != x"yes" ; then
|
||||
if test x"$default_enable_lto" != x"yes" ; then
|
||||
as_fn_error "LTO support requires libelf.h or libelf/libelf.h." "$LINENO" 5
|
||||
else
|
||||
enable_lto=no
|
||||
libelflibs=
|
||||
libelfinc=
|
||||
fi
|
||||
fi
|
||||
|
||||
# If we couldn't find gelf.h and the user forced it, emit an error.
|
||||
if test x"$have_gelf_h" != x"yes" \
|
||||
&& test x"$have_libelf_gelf_h" != x"yes" ; then
|
||||
if test x"$default_enable_lto" != x"yes" ; then
|
||||
as_fn_error "LTO support requires gelf.h or libelf/gelf.h." "$LINENO" 5
|
||||
else
|
||||
enable_lto=no
|
||||
libelflibs=
|
||||
libelfinc=
|
||||
fi
|
||||
fi
|
||||
|
||||
# Check that the detected libelf has the functions we need. We cannot
|
||||
# rely on just detecting the headers since they do not include
|
||||
# versioning information. Add functions, if needed.
|
||||
if test x"$enable_lto" = x"yes" ; then
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for the correct version of libelf" >&5
|
||||
$as_echo_n "checking for the correct version of libelf... " >&6; }
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <libelf.h>
|
||||
int
|
||||
main ()
|
||||
{
|
||||
|
||||
elf_errmsg (0);
|
||||
elf_getscn (0, 0);
|
||||
elf_nextscn (0, 0);
|
||||
elf_strptr (0, 0, 0);
|
||||
elf_getident (0, 0);
|
||||
elf_begin (0, 0, 0);
|
||||
elf_ndxscn (0);
|
||||
elf_end (0);
|
||||
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_link "$LINENO"; then :
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
|
||||
$as_echo "yes" >&6; };
|
||||
else
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||||
$as_echo "no" >&6; }; enable_lto=no; libelflibs= ; libelfinc=
|
||||
|
||||
fi
|
||||
rm -f core conftest.err conftest.$ac_objext \
|
||||
conftest$ac_exeext conftest.$ac_ext
|
||||
|
||||
# Check for elf_getshdrstrndx or elf_getshstrndx. The latter's flavor
|
||||
# is determined in gcc/configure.ac.
|
||||
if test x"$enable_lto" = x"yes" ; then
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for elf_getshdrstrndx" >&5
|
||||
$as_echo_n "checking for elf_getshdrstrndx... " >&6; }
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <libelf.h>
|
||||
int
|
||||
main ()
|
||||
{
|
||||
|
||||
elf_getshdrstrndx (0, 0);
|
||||
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_link "$LINENO"; then :
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
|
||||
$as_echo "yes" >&6; };
|
||||
else
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||||
$as_echo "no" >&6; };
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for elf_getshstrndx" >&5
|
||||
$as_echo_n "checking for elf_getshstrndx... " >&6; }
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <libelf.h>
|
||||
int
|
||||
main ()
|
||||
{
|
||||
|
||||
elf_getshstrndx (0, 0);
|
||||
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_link "$LINENO"; then :
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
|
||||
$as_echo "yes" >&6; };
|
||||
else
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
|
||||
$as_echo "no" >&6; }; enable_lto=no; libelflibs= ; libelfinc=
|
||||
|
||||
fi
|
||||
rm -f core conftest.err conftest.$ac_objext \
|
||||
conftest$ac_exeext conftest.$ac_ext
|
||||
|
||||
fi
|
||||
rm -f core conftest.err conftest.$ac_objext \
|
||||
conftest$ac_exeext conftest.$ac_ext
|
||||
fi
|
||||
|
||||
# If we couldn't enable LTO and the user forced it, emit an error.
|
||||
if test x"$enable_lto" = x"no" \
|
||||
&& test x"$default_enable_lto" != x"yes" ; then
|
||||
as_fn_error "To enable LTO, GCC requires libelf v0.8.12+.
|
||||
Try the --with-libelf, --with-libelf-include and --with-libelf-lib options
|
||||
to specify its location." "$LINENO" 5
|
||||
fi
|
||||
fi
|
||||
|
||||
CFLAGS="$saved_CFLAGS"
|
||||
CPPFLAGS="$saved_CPPFLAGS"
|
||||
LIBS="$saved_LIBS"
|
||||
|
||||
fi
|
||||
|
||||
# Flags needed for libelf.
|
||||
|
||||
|
||||
# ELF platforms build the lto-plugin when GOLD is in use.
|
||||
build_lto_plugin=${ENABLE_GOLD}
|
||||
fi
|
||||
else
|
||||
if test x"$default_enable_lto" = x"yes" ; then
|
||||
case $target in
|
||||
*-apple-darwin* | *-cygwin* | *-mingw*) ;;
|
||||
# On other non-ELF platforms, LTO must be explicitly enabled.
|
||||
# On other non-ELF platforms, LTO has yet to be validated.
|
||||
*) enable_lto=no ;;
|
||||
esac
|
||||
else
|
||||
|
|
@ -6706,11 +5815,12 @@ else
|
|||
esac
|
||||
fi
|
||||
# Among non-ELF, only Windows platforms support the lto-plugin so far.
|
||||
# Build it unless LTO was explicitly disabled.
|
||||
case $target in
|
||||
*-cygwin* | *-mingw*) build_lto_plugin=yes ;;
|
||||
*-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
|
||||
*) ;;
|
||||
esac
|
||||
default_enable_lto=no
|
||||
|
||||
fi
|
||||
|
||||
|
||||
|
|
|
|||
150
configure.ac
150
configure.ac
|
|
@ -1656,149 +1656,12 @@ AC_ARG_ENABLE(lto,
|
|||
enable_lto=$enableval,
|
||||
enable_lto=yes; default_enable_lto=yes)
|
||||
|
||||
|
||||
ACX_ELF_TARGET_IFELSE([if test x"$enable_lto" = x"yes" ; then
|
||||
# Make sure that libelf.h and gelf.h are available.
|
||||
AC_ARG_WITH(libelf, [ --with-libelf=PATH Specify prefix directory for the installed libelf package
|
||||
Equivalent to --with-libelf-include=PATH/include
|
||||
plus --with-libelf-lib=PATH/lib])
|
||||
|
||||
AC_ARG_WITH(libelf_include, [ --with-libelf-include=PATH Specify directory for installed libelf include files])
|
||||
|
||||
AC_ARG_WITH(libelf_lib, [ --with-libelf-lib=PATH Specify the directory for the installed libelf library])
|
||||
|
||||
saved_CFLAGS="$CFLAGS"
|
||||
saved_CPPFLAGS="$CPPFLAGS"
|
||||
saved_LIBS="$LIBS"
|
||||
|
||||
case $with_libelf in
|
||||
"")
|
||||
libelflibs="-lelf"
|
||||
libelfinc="-I/usr/include/libelf"
|
||||
;;
|
||||
*)
|
||||
libelflibs="-L$with_libelf/lib -lelf"
|
||||
libelfinc="-I$with_libelf/include -I$with_libelf/include/libelf"
|
||||
LIBS="$libelflibs $LIBS"
|
||||
;;
|
||||
esac
|
||||
|
||||
if test "x$with_libelf_include" != x; then
|
||||
libelfinc="-I$with_libelf_include"
|
||||
fi
|
||||
|
||||
if test "x$with_libelf_lib" != x; then
|
||||
libelflibs="-L$with_libelf_lib -lelf"
|
||||
LIBS="$libelflibs $LIBS"
|
||||
fi
|
||||
|
||||
if test "x$with_libelf$with_libelf_include$with_libelf_lib" = x \
|
||||
&& test -d ${srcdir}/libelf; then
|
||||
libelflibs='-L$$r/$(HOST_SUBDIR)/libelf/lib -lelf '
|
||||
libelfinc='-D__LIBELF_INTERNAL__ -I$$r/$(HOST_SUBDIR)/libelf/lib -I$$s/libelf/lib'
|
||||
LIBS="$libelflibs $LIBS"
|
||||
|
||||
else
|
||||
|
||||
CFLAGS="$CFLAGS $libelfinc"
|
||||
CPPFLAGS="$CPPFLAGS $libelfinc"
|
||||
LIBS="$LIBS $libelflibs"
|
||||
|
||||
AC_CHECK_HEADERS(libelf.h, [have_libelf_h=yes])
|
||||
AC_CHECK_HEADERS(gelf.h, [have_gelf_h=yes])
|
||||
|
||||
AC_CHECK_HEADERS(libelf/libelf.h, [have_libelf_libelf_h=yes])
|
||||
AC_CHECK_HEADERS(libelf/gelf.h, [have_libelf_gelf_h=yes])
|
||||
|
||||
# If we couldn't find libelf.h and the user forced it, emit an error.
|
||||
if test x"$have_libelf_h" != x"yes" \
|
||||
&& test x"$have_libelf_libelf_h" != x"yes" ; then
|
||||
if test x"$default_enable_lto" != x"yes" ; then
|
||||
AC_MSG_ERROR([LTO support requires libelf.h or libelf/libelf.h.])
|
||||
else
|
||||
enable_lto=no
|
||||
libelflibs=
|
||||
libelfinc=
|
||||
fi
|
||||
fi
|
||||
|
||||
# If we couldn't find gelf.h and the user forced it, emit an error.
|
||||
if test x"$have_gelf_h" != x"yes" \
|
||||
&& test x"$have_libelf_gelf_h" != x"yes" ; then
|
||||
if test x"$default_enable_lto" != x"yes" ; then
|
||||
AC_MSG_ERROR([LTO support requires gelf.h or libelf/gelf.h.])
|
||||
else
|
||||
enable_lto=no
|
||||
libelflibs=
|
||||
libelfinc=
|
||||
fi
|
||||
fi
|
||||
|
||||
# Check that the detected libelf has the functions we need. We cannot
|
||||
# rely on just detecting the headers since they do not include
|
||||
# versioning information. Add functions, if needed.
|
||||
if test x"$enable_lto" = x"yes" ; then
|
||||
AC_MSG_CHECKING([for the correct version of libelf])
|
||||
AC_TRY_LINK(
|
||||
[#include <libelf.h>],[
|
||||
elf_errmsg (0);
|
||||
elf_getscn (0, 0);
|
||||
elf_nextscn (0, 0);
|
||||
elf_strptr (0, 0, 0);
|
||||
elf_getident (0, 0);
|
||||
elf_begin (0, 0, 0);
|
||||
elf_ndxscn (0);
|
||||
elf_end (0);
|
||||
],
|
||||
[AC_MSG_RESULT([yes]);],
|
||||
[AC_MSG_RESULT([no]); enable_lto=no; libelflibs= ; libelfinc= ]
|
||||
)
|
||||
|
||||
# Check for elf_getshdrstrndx or elf_getshstrndx. The latter's flavor
|
||||
# is determined in gcc/configure.ac.
|
||||
if test x"$enable_lto" = x"yes" ; then
|
||||
AC_MSG_CHECKING([for elf_getshdrstrndx])
|
||||
AC_TRY_LINK(
|
||||
[#include <libelf.h>],[
|
||||
elf_getshdrstrndx (0, 0);
|
||||
],
|
||||
[AC_MSG_RESULT([yes]);],
|
||||
[AC_MSG_RESULT([no]);
|
||||
AC_MSG_CHECKING([for elf_getshstrndx])
|
||||
AC_TRY_LINK(
|
||||
[#include <libelf.h>],[
|
||||
elf_getshstrndx (0, 0);
|
||||
],
|
||||
[AC_MSG_RESULT([yes]);],
|
||||
[AC_MSG_RESULT([no]); enable_lto=no; libelflibs= ; libelfinc= ]
|
||||
)]
|
||||
)
|
||||
fi
|
||||
|
||||
# If we couldn't enable LTO and the user forced it, emit an error.
|
||||
if test x"$enable_lto" = x"no" \
|
||||
&& test x"$default_enable_lto" != x"yes" ; then
|
||||
AC_MSG_ERROR([To enable LTO, GCC requires libelf v0.8.12+.
|
||||
Try the --with-libelf, --with-libelf-include and --with-libelf-lib options
|
||||
to specify its location.])
|
||||
fi
|
||||
fi
|
||||
|
||||
CFLAGS="$saved_CFLAGS"
|
||||
CPPFLAGS="$saved_CPPFLAGS"
|
||||
LIBS="$saved_LIBS"
|
||||
|
||||
fi
|
||||
|
||||
# Flags needed for libelf.
|
||||
AC_SUBST(libelflibs)
|
||||
AC_SUBST(libelfinc)
|
||||
# ELF platforms build the lto-plugin when GOLD is in use.
|
||||
build_lto_plugin=${ENABLE_GOLD}
|
||||
fi],[if test x"$default_enable_lto" = x"yes" ; then
|
||||
ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
|
||||
build_lto_plugin=yes
|
||||
],[if test x"$default_enable_lto" = x"yes" ; then
|
||||
case $target in
|
||||
*-apple-darwin* | *-cygwin* | *-mingw*) ;;
|
||||
# On other non-ELF platforms, LTO must be explicitly enabled.
|
||||
# On other non-ELF platforms, LTO has yet to be validated.
|
||||
*) enable_lto=no ;;
|
||||
esac
|
||||
else
|
||||
|
|
@ -1816,11 +1679,12 @@ fi],[if test x"$default_enable_lto" = x"yes" ; then
|
|||
esac
|
||||
fi
|
||||
# Among non-ELF, only Windows platforms support the lto-plugin so far.
|
||||
# Build it unless LTO was explicitly disabled.
|
||||
case $target in
|
||||
*-cygwin* | *-mingw*) build_lto_plugin=yes ;;
|
||||
*-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
|
||||
*) ;;
|
||||
esac
|
||||
default_enable_lto=no])
|
||||
])
|
||||
|
||||
|
||||
# By default, C is the only stage 1 language.
|
||||
|
|
|
|||
Loading…
Reference in New Issue