diff options
Diffstat (limited to 'gdb/configure')
| -rwxr-xr-x | gdb/configure | 380 |
1 files changed, 374 insertions, 6 deletions
diff --git a/gdb/configure b/gdb/configure index b1a7665..3297d37 100755 --- a/gdb/configure +++ b/gdb/configure @@ -724,6 +724,7 @@ MAKE CCDEPMODE DEPDIR am__leading_dot +COMPILER INSTALL_STRIP_PROGRAM STRIP install_sh @@ -742,6 +743,9 @@ build EGREP GREP CPP +ac_ct_CXX +CXXFLAGS +CXX OBJEXT EXEEXT ac_ct_CC @@ -796,6 +800,7 @@ enable_option_checking enable_maintainer_mode enable_plugins enable_largefile +enable_build_with_cxx with_separate_debug_dir with_gdb_datadir with_relocated_sources @@ -849,6 +854,9 @@ CFLAGS LDFLAGS LIBS CPPFLAGS +CXX +CXXFLAGS +CCC CPP MAKEINFO MAKEINFOFLAGS @@ -1484,6 +1492,7 @@ Optional Features: (and sometimes confusing) to the casual installer --enable-plugins Enable support for plugins --disable-largefile omit support for large files + --enable-build-with-cxx build with C++ compiler instead of C compiler --enable-targets=TARGETS alternative target configurations --enable-64-bit-bfd 64-bit support (on hosts with narrower word sizes) @@ -1567,6 +1576,8 @@ Some influential environment variables: LIBS libraries to pass to the linker, e.g. -l<library> CPPFLAGS C/C++/Objective C preprocessor flags, e.g. -I<include dir> if you have headers in a nonstandard directory <include dir> + CXX C++ compiler command + CXXFLAGS C++ compiler flags CPP C preprocessor MAKEINFO Parent configure detects if it is of sufficient version. MAKEINFOFLAGS @@ -1696,6 +1707,44 @@ fi } # ac_fn_c_try_compile +# ac_fn_cxx_try_compile LINENO +# ---------------------------- +# Try to compile conftest.$ac_ext, and return whether this succeeded. +ac_fn_cxx_try_compile () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + rm -f conftest.$ac_objext + if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + grep -v '^ *+' conftest.err >conftest.er1 + cat conftest.er1 >&5 + mv -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { + test -z "$ac_cxx_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then : + ac_retval=0 +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=1 +fi + eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;} + return $ac_retval + +} # ac_fn_cxx_try_compile + # ac_fn_c_try_cpp LINENO # ---------------------- # Try to preprocess conftest.$ac_ext, and return whether this succeeded. @@ -3487,6 +3536,264 @@ 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=cpp +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 -z "$CXX"; then + if test -n "$CCC"; then + CXX=$CCC + else + if test -n "$ac_tool_prefix"; then + for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe 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 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if test "${ac_cv_prog_CXX+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$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 '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_CXX="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CXX=$ac_cv_prog_CXX +if test -n "$CXX"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5 +$as_echo "$CXX" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CXX" && break + done +fi +if test -z "$CXX"; then + ac_ct_CXX=$CXX + for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe 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 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$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 '' $ac_executable_extensions; do + if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then + ac_cv_prog_ac_ct_CXX="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CXX=$ac_cv_prog_ac_ct_CXX +if test -n "$ac_ct_CXX"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5 +$as_echo "$ac_ct_CXX" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CXX" && break +done + + if test "x$ac_ct_CXX" = x; then + CXX="g++" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CXX=$ac_ct_CXX + fi +fi + + fi +fi +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + rm -f conftest.er1 conftest.err + fi + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5 +$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; } +if test "${ac_cv_cxx_compiler_gnu+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + ac_compiler_gnu=yes +else + ac_compiler_gnu=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_cxx_compiler_gnu=$ac_compiler_gnu + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5 +$as_echo "$ac_cv_cxx_compiler_gnu" >&6; } +if test $ac_compiler_gnu = yes; then + GXX=yes +else + GXX= +fi +ac_test_CXXFLAGS=${CXXFLAGS+set} +ac_save_CXXFLAGS=$CXXFLAGS +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5 +$as_echo_n "checking whether $CXX accepts -g... " >&6; } +if test "${ac_cv_prog_cxx_g+set}" = set; then : + $as_echo_n "(cached) " >&6 +else + ac_save_cxx_werror_flag=$ac_cxx_werror_flag + ac_cxx_werror_flag=yes + ac_cv_prog_cxx_g=no + CXXFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + ac_cv_prog_cxx_g=yes +else + CXXFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + +else + ac_cxx_werror_flag=$ac_save_cxx_werror_flag + CXXFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + ac_cv_prog_cxx_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + ac_cxx_werror_flag=$ac_save_cxx_werror_flag +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5 +$as_echo "$ac_cv_prog_cxx_g" >&6; } +if test "$ac_test_CXXFLAGS" = set; then + CXXFLAGS=$ac_save_CXXFLAGS +elif test $ac_cv_prog_cxx_g = yes; then + if test "$GXX" = yes; then + CXXFLAGS="-g -O2" + else + CXXFLAGS="-g" + fi +else + if test "$GXX" = yes; then + CXXFLAGS="-O2" + else + CXXFLAGS= + fi +fi +ac_ext=c +ac_cpp='$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=c ac_cpp='$CPP $CPPFLAGS' @@ -4634,6 +4941,30 @@ ac_script='s/[\\$]/&&/g;s/;s,x,x,$//' program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"` +# See if we are building with C++, and substitute COMPILER. + + # Check whether --enable-build-with-cxx was given. +if test "${enable_build_with_cxx+set}" = set; then : + enableval=$enable_build_with_cxx; case $enableval in + yes | no) + ;; + *) + as_fn_error "bad value $enableval for --enable-build-with-cxx" "$LINENO" 5 ;; + esac +else + enable_build_with_cxx=no +fi + + + if test "$enable_build_with_cxx" = "yes"; then + # We're using -fpermissive as shortcut for now. + COMPILER='$(CXX) -fpermissive' + else + COMPILER='$(CC)' + fi + + + # Dependency checking. rm -rf .tst 2>/dev/null mkdir .tst 2>/dev/null @@ -13038,8 +13369,11 @@ if test "${enable_werror+set}" = set; then : fi -# Enable -Werror by default when using gcc. Turn it off for releases. -if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then +# Enable -Werror by default when using gcc in C mode. Leave it off +# for C++ until we're warning clean. Turn it off for releases. +if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" \ + && test x"$enable_build_with_cxx" != x"yes" \ + && $development; then ERROR_ON_WARNING=yes fi @@ -13048,13 +13382,21 @@ if test "${ERROR_ON_WARNING}" = yes ; then WERROR_CFLAGS="-Werror" fi +# These options work in either C or C++ modes. build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \ --Wpointer-sign \ -Wno-unused -Wunused-value -Wunused-function \ -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \ -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \ -Wold-style-declaration -Wold-style-definition" +# Now add in C and C++ specific options, depending on mode. +if test "$enable_build_with_cxx" = "yes"; then + build_warnings="$build_warnings -Wno-sign-compare -Wno-write-strings \ +-Wno-narrowing" +else + build_warnings="$build_warnings -Wpointer-sign" +fi + # Enable -Wno-format by default when using gcc on mingw since many # GCC versions complain about %I64. case "${host}" in @@ -13092,6 +13434,18 @@ if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1 fi fi + +# The set of warnings supported by a C++ compiler is not the same as +# of the C compiler. +if test "$enable_build_with_cxx" = "yes"; then + ac_ext=cpp +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 + +fi + WARN_CFLAGS="" if test "x${build_warnings}" != x -a "x$GCC" = xyes then @@ -13102,10 +13456,14 @@ $as_echo_n "checking compiler warning flags... " >&6; } for w in ${build_warnings}; do case $w in -Werr*) WERROR_CFLAGS=-Werror ;; - *) # Check that GCC accepts it + *) + # Check whether GCC accepts it. saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $w" - cat confdefs.h - <<_ACEOF >conftest.$ac_ext + saved_CXXFLAGS="$CXXFLAGS" + CXXFLAGS="$CXXFLAGS $w" + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int @@ -13116,11 +13474,12 @@ main () return 0; } _ACEOF -if ac_fn_c_try_compile "$LINENO"; then : +if ac_fn_cxx_try_compile "$LINENO"; then : WARN_CFLAGS="${WARN_CFLAGS} $w" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext CFLAGS="$saved_CFLAGS" + CXXFLAGS="$saved_CXXFLAGS" esac done { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${WARN_CFLAGS} ${WERROR_CFLAGS}" >&5 @@ -13129,6 +13488,15 @@ fi +if test "$enable_build_with_cxx" = "yes"; then + 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 + +fi + # In the Cygwin environment, we need some additional flags. { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cygwin" >&5 $as_echo_n "checking for cygwin... " >&6; } |