📄 configure
字号:
ac_cache_corrupted=:
fi;;
esac
# Pass precious variables to config.status.
if test "$ac_new_set" = set; then
case $ac_new_val in
*" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
*) ac_arg=$ac_var=$ac_new_val ;;
esac
case " $ac_configure_args " in
*" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
*) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
esac
fi
done
if $ac_cache_corrupted; then
{ echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
echo "$as_me: error: changes in the environment can compromise the build" >&2;}
{ { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
{ (exit 1); exit 1; }; }
fi
ac_ext=c
ac_cpp='$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
ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
if test -n "$ac_tool_prefix"; then
for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
do
# Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_CXX+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
if test -n "$CXX"; then
ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
fi
done
done
fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
echo "$as_me:$LINENO: result: $CXX" >&5
echo "${ECHO_T}$CXX" >&6
else
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
test -n "$CXX" && break
done
fi
if test -z "$CXX"; then
ac_ct_CXX=$CXX
for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
if test -n "$ac_ct_CXX"; then
ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_exec_ext in '' $ac_executable_extensions; do
if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
ac_cv_prog_ac_ct_CXX="$ac_prog"
echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
break 2
fi
done
done
fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
echo "${ECHO_T}$ac_ct_CXX" >&6
else
echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6
fi
test -n "$ac_ct_CXX" && break
done
test -n "$ac_ct_CXX" || ac_ct_CXX="g++"
CXX=$ac_ct_CXX
fi
# Provide some information about the compiler.
echo "$as_me:$LINENO:" \
"checking for C++ compiler version" >&5
ac_compiler=`set X $ac_compile; echo $2`
{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
(eval $ac_compiler --version </dev/null >&5) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
(eval $ac_compiler -v </dev/null >&5) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }
{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
(eval $ac_compiler -V </dev/null >&5) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files a.out a.exe b.out"
# Try to create an executable without -o first, disregard a.out.
# It will help us diagnose broken compilers, and finding out an intuition
# of exeext.
echo "$as_me:$LINENO: checking for C++ compiler default output file name" >&5
echo $ECHO_N "checking for C++ compiler default output file name... $ECHO_C" >&6
ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
(eval $ac_link_default) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; then
# Find the output, starting from the most likely. This scheme is
# not robust to junk in `.', hence go to wildcards (a.*) only as a last
# resort.
# Be careful to initialize this variable, since it used to be cached.
# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile.
ac_cv_exeext=
# b.out is created by i960 compilers.
for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out
do
test -f "$ac_file" || continue
case $ac_file in
*.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj )
;;
conftest.$ac_ext )
# This is the source file.
;;
[ab].out )
# We found the default executable, but exeext='' is most
# certainly right.
break;;
*.* )
ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
# FIXME: I believe we export ac_cv_exeext for Libtool,
# but it would be cool to find out if it's true. Does anybody
# maintain Libtool? --akim.
export ac_cv_exeext
break;;
* )
break;;
esac
done
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ { echo "$as_me:$LINENO: error: C++ compiler cannot create executables
See \`config.log' for more details." >&5
echo "$as_me: error: C++ compiler cannot create executables
See \`config.log' for more details." >&2;}
{ (exit 77); exit 77; }; }
fi
ac_exeext=$ac_cv_exeext
echo "$as_me:$LINENO: result: $ac_file" >&5
echo "${ECHO_T}$ac_file" >&6
# Check the compiler produces executables we can run. If not, either
# the compiler is broken, or we cross compile.
echo "$as_me:$LINENO: checking whether the C++ compiler works" >&5
echo $ECHO_N "checking whether the C++ compiler works... $ECHO_C" >&6
# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
# If not cross compiling, check that we can run a simple program.
if test "$cross_compiling" != yes; then
if { ac_try='./$ac_file'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
cross_compiling=no
else
if test "$cross_compiling" = maybe; then
cross_compiling=yes
else
{ { echo "$as_me:$LINENO: error: cannot run C++ compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details." >&5
echo "$as_me: error: cannot run C++ compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details." >&2;}
{ (exit 1); exit 1; }; }
fi
fi
fi
echo "$as_me:$LINENO: result: yes" >&5
echo "${ECHO_T}yes" >&6
rm -f a.out a.exe conftest$ac_cv_exeext b.out
ac_clean_files=$ac_clean_files_save
# Check the compiler produces executables we can run. If not, either
# the compiler is broken, or we cross compile.
echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
echo "$as_me:$LINENO: result: $cross_compiling" >&5
echo "${ECHO_T}$cross_compiling" >&6
echo "$as_me:$LINENO: checking for suffix of executables" >&5
echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(eval $ac_link) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; then
# If both `conftest.exe' and `conftest' are `present' (well, observable)
# catch `conftest.exe'. For instance with Cygwin, `ls conftest' will
# work properly (i.e., refer to `conftest.exe'), while it won't with
# `rm'.
for ac_file in conftest.exe conftest conftest.*; do
test -f "$ac_file" || continue
case $ac_file in
*.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;;
*.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
export ac_cv_exeext
break;;
* ) break;;
esac
done
else
{ { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details." >&2;}
{ (exit 1); exit 1; }; }
fi
rm -f conftest$ac_cv_exeext
echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
echo "${ECHO_T}$ac_cv_exeext" >&6
rm -f conftest.$ac_ext
EXEEXT=$ac_cv_exeext
ac_exeext=$EXEEXT
echo "$as_me:$LINENO: checking for suffix of object files" >&5
echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6
if test "${ac_cv_objext+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
rm -f conftest.o conftest.obj
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; then
for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
case $ac_file in
*.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;;
*) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
break;;
esac
done
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
See \`config.log' for more details." >&5
echo "$as_me: error: cannot compute suffix of object files: cannot compile
See \`config.log' for more details." >&2;}
{ (exit 1); exit 1; }; }
fi
rm -f conftest.$ac_cv_objext conftest.$ac_ext
fi
echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
echo "${ECHO_T}$ac_cv_objext" >&6
OBJEXT=$ac_cv_objext
ac_objext=$OBJEXT
echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6
if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
int
main ()
{
#ifndef __GNUC__
choke me
#endif
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
ac_compiler_gnu=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_compiler_gnu=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
fi
echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6
GXX=`test $ac_compiler_gnu = yes && echo yes`
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -