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build: detect the right ar tool
Use automake's AM_PROG_AR helper instead of the default of hardcoding `ar` all the time. When cross-compiling, this can often be the wrong one to use. BUG=google-breakpad:519 R=ted.mielczarek@gmail.com Review URL: https://codereview.chromium.org/1435813002 .
This commit is contained in:
Mike Frysinger
parent
39e372dab6
commit
f217ae431f
5 changed files with 511 additions and 6 deletions
175
configure
vendored
175
configure
vendored
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@ -674,6 +674,8 @@ CPPFLAGS
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LDFLAGS
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CFLAGS
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CC
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ac_ct_AR
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AR
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MAINT
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MAINTAINER_MODE_FALSE
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MAINTAINER_MODE_TRUE
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@ -4041,6 +4043,178 @@ else
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fi
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if test -n "$ac_tool_prefix"; then
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for ac_prog in ar lib "link -lib"
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do
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# Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
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set dummy $ac_tool_prefix$ac_prog; ac_word=$2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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$as_echo_n "checking for $ac_word... " >&6; }
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if ${ac_cv_prog_AR+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -n "$AR"; then
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ac_cv_prog_AR="$AR" # Let the user override the test.
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else
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_exec_ext in '' $ac_executable_extensions; do
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if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
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$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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break 2
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fi
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done
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done
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IFS=$as_save_IFS
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fi
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fi
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AR=$ac_cv_prog_AR
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if test -n "$AR"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
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$as_echo "$AR" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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fi
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test -n "$AR" && break
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done
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fi
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if test -z "$AR"; then
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ac_ct_AR=$AR
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for ac_prog in ar lib "link -lib"
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do
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# Extract the first word of "$ac_prog", so it can be a program name with args.
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set dummy $ac_prog; ac_word=$2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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$as_echo_n "checking for $ac_word... " >&6; }
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if ${ac_cv_prog_ac_ct_AR+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -n "$ac_ct_AR"; then
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ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
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else
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_exec_ext in '' $ac_executable_extensions; do
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if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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ac_cv_prog_ac_ct_AR="$ac_prog"
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$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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break 2
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fi
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done
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done
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IFS=$as_save_IFS
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fi
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fi
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ac_ct_AR=$ac_cv_prog_ac_ct_AR
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if test -n "$ac_ct_AR"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
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$as_echo "$ac_ct_AR" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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fi
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test -n "$ac_ct_AR" && break
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done
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if test "x$ac_ct_AR" = x; then
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AR="false"
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else
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case $cross_compiling:$ac_tool_warned in
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yes:)
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
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$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
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ac_tool_warned=yes ;;
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esac
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AR=$ac_ct_AR
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fi
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fi
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: ${AR=ar}
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the archiver ($AR) interface" >&5
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$as_echo_n "checking the archiver ($AR) interface... " >&6; }
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if ${am_cv_ar_interface+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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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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am_cv_ar_interface=ar
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int some_variable = 0;
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$am_ar_try\""; } >&5
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(eval $am_ar_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }
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if test "$ac_status" -eq 0; then
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am_cv_ar_interface=ar
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else
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am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$am_ar_try\""; } >&5
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(eval $am_ar_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }
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if test "$ac_status" -eq 0; then
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am_cv_ar_interface=lib
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else
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am_cv_ar_interface=unknown
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fi
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fi
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rm -f conftest.lib libconftest.a
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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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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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_ar_interface" >&5
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$as_echo "$am_cv_ar_interface" >&6; }
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case $am_cv_ar_interface in
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ar)
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;;
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lib)
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# Microsoft lib, so override with the ar-lib wrapper script.
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# FIXME: It is wrong to rewrite AR.
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# But if we don't then we get into trouble of one sort or another.
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# A longer-term fix would be to have automake use am__AR in this case,
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# and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
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# similar.
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AR="$am_aux_dir/ar-lib $AR"
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;;
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unknown)
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as_fn_error $? "could not determine $AR interface" "$LINENO" 5
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;;
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esac
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# By default we simply use the C compiler to build assembly code.
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test "${CCAS+set}" = set || CCAS=$CC
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@ -5545,7 +5719,6 @@ fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
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$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
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if ${ac_cv_path_GREP+:} false; then :
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