bpo-26317: Support OBJC and OBJCXX configure command line variables (GH-20176)

Add support to the configure script for OBJC and OBJCXX command line options so that the macOS builds can use the clang compiler for the macOS-specific Objective C source files. This allows third-party compilers, like GNU gcc, to be used to build the rest of the project since some of the Objective C system header files are not compilable by GNU gcc.

Co-authored-by: Jeffrey Kintscher <websurfer@surf2c.net>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
This commit is contained in:
Ned Deily 2020-05-18 09:17:22 -04:00 committed by GitHub
parent c444108dd6
commit 0da5466650
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
10 changed files with 670 additions and 15 deletions

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@ -892,6 +892,14 @@ Build Changes
functions are now required to build Python.
(Contributed by Victor Stinner in :issue:`39395`.)
* The ``OBJC`` and ``OBJCXX`` standard command line options for the configure
script are now supported. This allows building fot macOS with a third-party
compiler, like GNU `gcc`, for everything except for the several
system-specific source files that need system headers that require the
Apple-supplied compile chain (e.g. the ``_scproxy`` helper module and
``PythonLauncher.app``).
(Contributed by Jeffrey Kintscher in :issue:`26317`.)
C API Changes
=============

View file

@ -21,6 +21,7 @@ PYTHONFRAMEWORK=@PYTHONFRAMEWORK@
PYTHONFRAMEWORKIDENTIFIER=@PYTHONFRAMEWORKIDENTIFIER@
LIPO_32BIT_FLAGS=@LIPO_32BIT_FLAGS@
CC=@CC@
OBJC=@OBJC@
MACOSX_DEPLOYMENT_TARGET=@CONFIGURE_MACOSX_DEPLOYMENT_TARGET@
export MACOSX_DEPLOYMENT_TARGET

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@ -1,5 +1,7 @@
CC=@CC@
LD=@CC@
OBJC=@OBJC@
OBJCFLAFS=@OBJCFLAGS@
BASECFLAGS=@BASECFLAGS@
OPT=@OPT@
CFLAGS=@CFLAGS@ $(BASECFLAGS) $(OPT)
@ -52,25 +54,25 @@ Python\ Launcher.app: Info.plist \
cp -R $(srcdir)/English.lproj "Python Launcher.app/Contents/Resources"
FileSettings.o: $(srcdir)/FileSettings.m
$(CC) $(CFLAGS) -o $@ -c $(srcdir)/FileSettings.m
$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/FileSettings.m
MyAppDelegate.o: $(srcdir)/MyAppDelegate.m
$(CC) $(CFLAGS) -o $@ -c $(srcdir)/MyAppDelegate.m
$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/MyAppDelegate.m
MyDocument.o: $(srcdir)/MyDocument.m
$(CC) $(CFLAGS) -o $@ -c $(srcdir)/MyDocument.m
$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/MyDocument.m
PreferencesWindowController.o: $(srcdir)/PreferencesWindowController.m
$(CC) $(CFLAGS) -o $@ -c $(srcdir)/PreferencesWindowController.m
$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/PreferencesWindowController.m
doscript.o: $(srcdir)/doscript.m
$(CC) $(CFLAGS) -o $@ -c $(srcdir)/doscript.m
$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/doscript.m
main.o: $(srcdir)/main.m
$(CC) $(CFLAGS) -o $@ -c $(srcdir)/main.m
$(OBJC) $(CFLAGS) -o $@ -c $(srcdir)/main.m
Python\ Launcher: $(OBJECTS)
$(CC) $(LDFLAGS) -o "Python Launcher" $(OBJECTS) -framework AppKit -framework Carbon
$(OBJC) $(LDFLAGS) -o "Python Launcher" $(OBJECTS) -framework AppKit -framework Carbon
Info.plist: $(srcdir)/Info.plist.in
sed 's/%VERSION%/'"`$(RUNSHARED) $(BUILDPYTHON) -c 'import platform; print(platform.python_version())'`"'/g' < $(srcdir)/Info.plist.in > Info.plist

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@ -35,6 +35,7 @@ abs_builddir= @abs_builddir@
CC= @CC@
CXX= @CXX@
OBJC= @OBJC@
MAINCC= @MAINCC@
LINKCC= @LINKCC@
AR= @AR@
@ -613,12 +614,22 @@ $(srcdir)/Modules/_blake2/blake2s_impl.c: $(srcdir)/Modules/_blake2/blake2b_impl
$(PYTHON_FOR_REGEN) $(srcdir)/Modules/_blake2/blake2b2s.py
$(PYTHON_FOR_REGEN) $(srcdir)/Tools/clinic/clinic.py -f $@
# _scproxy.o needs to be built outside of setup.py so that we can force
# the use of the OBJC compiler when the CC compiler is different. For
# example, it allows _scproxy.c to be compiled using the clang compiler
# while the rest of the project uses the GNU C compiler.
#
# see issue #26317 for details
@SCPROXY@Modules/_scproxy.o: $(srcdir)/Modules/_scproxy.c $(srcdir)/Include/Python.h
@SCPROXY@ $(OBJC) -c $(CCSHARED) $(PY_CORE_CFLAGS) -o $@ $<
@NOSCPROXY@.PHONY: Modules/_scproxy.o
# Build the shared modules
# Under GNU make, MAKEFLAGS are sorted and normalized; the 's' for
# -s, --silent or --quiet is always the first char.
# Under BSD make, MAKEFLAGS might be " -s -v x=y".
# Ignore macros passed by GNU make, passed after --
sharedmods: $(BUILDPYTHON) pybuilddir.txt Modules/_math.o
sharedmods: $(BUILDPYTHON) pybuilddir.txt Modules/_math.o Modules/_scproxy.o
@case "`echo X $$MAKEFLAGS | sed 's/^X //;s/ -- .*//'`" in \
*\ -s*|s*) quiet="-q";; \
*) quiet="";; \

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@ -882,6 +882,7 @@ Sam Kimbrel
Tomohiko Kinebuchi
James King
W. Trevor King
Jeffrey Kintscher
Paul Kippes
Steve Kirsch
Sebastian Kirsche

View file

@ -0,0 +1 @@
The OBJC and OBJCXX standard command line options for the configure script are now supported. This allows building fot macOS with a third-party compiler, like GNU gcc, for everything except for the several system-specific source files that need system headers that require the Apple-supplied compile chain (e.g. the _scproxy helper module and PythonLauncher.app). Patch by Jeffrey Kintscher.

10
aclocal.m4 vendored
View file

@ -55,7 +55,7 @@ dnl
dnl See the "Since" comment for each macro you use to see what version
dnl of the macros you require.
m4_defun([PKG_PREREQ],
[m4_define([PKG_MACROS_VERSION], [0.29.1])
[m4_define([PKG_MACROS_VERSION], [0.29.2])
m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
[m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
])dnl PKG_PREREQ
@ -156,7 +156,7 @@ AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
pkg_failed=no
AC_MSG_CHECKING([for $1])
AC_MSG_CHECKING([for $2])
_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
_PKG_CONFIG([$1][_LIBS], [libs], [$2])
@ -166,11 +166,11 @@ and $1[]_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.])
if test $pkg_failed = yes; then
AC_MSG_RESULT([no])
AC_MSG_RESULT([no])
_PKG_SHORT_ERRORS_SUPPORTED
if test $_pkg_short_errors_supported = yes; then
$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
else
else
$1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
fi
# Put the nasty error message in config.log where it belongs
@ -187,7 +187,7 @@ installed software in a non-standard prefix.
_PKG_TEXT])[]dnl
])
elif test $pkg_failed = untried; then
AC_MSG_RESULT([no])
AC_MSG_RESULT([no])
m4_default([$4], [AC_MSG_FAILURE(
[The pkg-config script could not be found or is too old. Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full

611
configure vendored
View file

@ -716,6 +716,14 @@ MULTIARCH_CPPFLAGS
PLATFORM_TRIPLET
MULTIARCH
ac_ct_CXX
NOSCPROXY
SCPROXY
ac_ct_OBJCXX
OBJCXXFLAGS
OBJCXX
ac_ct_OBJC
OBJCFLAGS
OBJC
MAINCC
CXX
SED
@ -860,6 +868,10 @@ LDFLAGS
LIBS
CPPFLAGS
CPP
OBJC
OBJCFLAGS
OBJCXX
OBJCXXFLAGS
PROFILE_TASK
PKG_CONFIG
PKG_CONFIG_PATH
@ -1599,6 +1611,10 @@ Some influential environment variables:
CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
you have headers in a nonstandard directory <include dir>
CPP C preprocessor
OBJC Objective C compiler command
OBJCFLAGS Objective C compiler flags
OBJCXX Objective C++ compiler command
OBJCXXFLAGS Objective C++ compiler flags
PROFILE_TASK
Python args for PGO generation task
PKG_CONFIG path to pkg-config utility
@ -1762,6 +1778,82 @@ fi
} # ac_fn_c_try_cpp
# ac_fn_objc_try_compile LINENO
# -----------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_objc_try_compile ()
{
as_lineno=${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_objc_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; ${as_lineno_stack:+:} unset as_lineno
as_fn_set_status $ac_retval
} # ac_fn_objc_try_compile
# ac_fn_objcxx_try_compile LINENO
# -------------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_objcxx_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_objcxx_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; ${as_lineno_stack:+:} unset as_lineno
as_fn_set_status $ac_retval
} # ac_fn_objcxx_try_compile
# ac_fn_c_try_link LINENO
# -----------------------
# Try to link conftest.$ac_ext, and return whether this succeeded.
@ -4641,6 +4733,525 @@ $as_echo "$ac_cv_path_SED" >&6; }
if test "$ac_sys_system" = "Darwin"
then
# MacOSX requires an Objective C compiler to
# build some Mac-specific code.
ac_ext=m
ac_cpp='$OBJCPP $CPPFLAGS'
ac_compile='$OBJC -c $OBJCFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$OBJC -o conftest$ac_exeext $OBJCFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_objc_compiler_gnu
if test -n "$ac_tool_prefix"; then
for ac_prog in gcc objcc objc cc CC
do
# Extract the first word of "$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 ${ac_cv_prog_OBJC+:} false; then :
$as_echo_n "(cached) " >&6
else
if test -n "$OBJC"; then
ac_cv_prog_OBJC="$OBJC" # Let the user override the test.
else
as_save_IFS=$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 '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
ac_cv_prog_OBJC="$ac_tool_prefix$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
OBJC=$ac_cv_prog_OBJC
if test -n "$OBJC"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJC" >&5
$as_echo "$OBJC" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
test -n "$OBJC" && break
done
fi
if test -z "$OBJC"; then
ac_ct_OBJC=$OBJC
for ac_prog in gcc objcc objc cc CC
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 ${ac_cv_prog_ac_ct_OBJC+:} false; then :
$as_echo_n "(cached) " >&6
else
if test -n "$ac_ct_OBJC"; then
ac_cv_prog_ac_ct_OBJC="$ac_ct_OBJC" # Let the user override the test.
else
as_save_IFS=$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 '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
ac_cv_prog_ac_ct_OBJC="$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_OBJC=$ac_cv_prog_ac_ct_OBJC
if test -n "$ac_ct_OBJC"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJC" >&5
$as_echo "$ac_ct_OBJC" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
test -n "$ac_ct_OBJC" && break
done
if test "x$ac_ct_OBJC" = x; then
OBJC="gcc"
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
OBJC=$ac_ct_OBJC
fi
fi
# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for Objective 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
fi
rm -f conftest.er1 conftest.err
$as_echo "$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 Objective C compiler" >&5
$as_echo_n "checking whether we are using the GNU Objective C compiler... " >&6; }
if ${ac_cv_objc_compiler_gnu+:} false; 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_objc_try_compile "$LINENO"; then :
ac_compiler_gnu=yes
else
ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_objc_compiler_gnu=$ac_compiler_gnu
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objc_compiler_gnu" >&5
$as_echo "$ac_cv_objc_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
GOBJC=yes
else
GOBJC=
fi
ac_test_OBJCFLAGS=${OBJCFLAGS+set}
ac_save_OBJCFLAGS=$OBJCFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $OBJC accepts -g" >&5
$as_echo_n "checking whether $OBJC accepts -g... " >&6; }
if ${ac_cv_prog_objc_g+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_save_objc_werror_flag=$ac_objc_werror_flag
ac_objc_werror_flag=yes
ac_cv_prog_objc_g=no
OBJCFLAGS="-g"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_objc_try_compile "$LINENO"; then :
ac_cv_prog_objc_g=yes
else
OBJCFLAGS=""
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_objc_try_compile "$LINENO"; then :
else
ac_objc_werror_flag=$ac_save_objc_werror_flag
OBJCFLAGS="-g"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_objc_try_compile "$LINENO"; then :
ac_cv_prog_objc_g=yes
fi
rm -f core conftest.err conftest.$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.$ac_ext
ac_objc_werror_flag=$ac_save_objc_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_objc_g" >&5
$as_echo "$ac_cv_prog_objc_g" >&6; }
if test "$ac_test_OBJCFLAGS" = set; then
OBJCFLAGS=$ac_save_OBJCFLAGS
elif test $ac_cv_prog_objc_g = yes; then
if test "$GOBJC" = yes; then
OBJCFLAGS="-g -O2"
else
OBJCFLAGS="-g"
fi
else
if test "$GOBJC" = yes; then
OBJCFLAGS="-O2"
else
OBJCFLAGS=
fi
fi
ac_ext=c
ac_cpp='$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=mm
ac_cpp='$OBJCXXCPP $CPPFLAGS'
ac_compile='$OBJCXX -c $OBJCXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$OBJCXX -o conftest$ac_exeext $OBJCXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_objcxx_compiler_gnu
if test -n "$ac_tool_prefix"; then
for ac_prog in g++ objc++ objcxx c++ CXX
do
# Extract the first word of "$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 ${ac_cv_prog_OBJCXX+:} false; then :
$as_echo_n "(cached) " >&6
else
if test -n "$OBJCXX"; then
ac_cv_prog_OBJCXX="$OBJCXX" # Let the user override the test.
else
as_save_IFS=$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 '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
ac_cv_prog_OBJCXX="$ac_tool_prefix$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
OBJCXX=$ac_cv_prog_OBJCXX
if test -n "$OBJCXX"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJCXX" >&5
$as_echo "$OBJCXX" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
test -n "$OBJCXX" && break
done
fi
if test -z "$OBJCXX"; then
ac_ct_OBJCXX=$OBJCXX
for ac_prog in g++ objc++ objcxx c++ CXX
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 ${ac_cv_prog_ac_ct_OBJCXX+:} false; then :
$as_echo_n "(cached) " >&6
else
if test -n "$ac_ct_OBJCXX"; then
ac_cv_prog_ac_ct_OBJCXX="$ac_ct_OBJCXX" # Let the user override the test.
else
as_save_IFS=$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 '' $ac_executable_extensions; do
if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
ac_cv_prog_ac_ct_OBJCXX="$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_OBJCXX=$ac_cv_prog_ac_ct_OBJCXX
if test -n "$ac_ct_OBJCXX"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJCXX" >&5
$as_echo "$ac_ct_OBJCXX" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
test -n "$ac_ct_OBJCXX" && break
done
if test "x$ac_ct_OBJCXX" = x; then
OBJCXX="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
OBJCXX=$ac_ct_OBJCXX
fi
fi
# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for Objective 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
fi
rm -f conftest.er1 conftest.err
$as_echo "$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 Objective C++ compiler" >&5
$as_echo_n "checking whether we are using the GNU Objective C++ compiler... " >&6; }
if ${ac_cv_objcxx_compiler_gnu+:} false; 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_objcxx_try_compile "$LINENO"; then :
ac_compiler_gnu=yes
else
ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_objcxx_compiler_gnu=$ac_compiler_gnu
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objcxx_compiler_gnu" >&5
$as_echo "$ac_cv_objcxx_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
GOBJCXX=yes
else
GOBJCXX=
fi
ac_test_OBJCXXFLAGS=${OBJCXXFLAGS+set}
ac_save_OBJCXXFLAGS=$OBJCXXFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $OBJCXX accepts -g" >&5
$as_echo_n "checking whether $OBJCXX accepts -g... " >&6; }
if ${ac_cv_prog_objcxx_g+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_save_objcxx_werror_flag=$ac_objcxx_werror_flag
ac_objcxx_werror_flag=yes
ac_cv_prog_objcxx_g=no
OBJCXXFLAGS="-g"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_objcxx_try_compile "$LINENO"; then :
ac_cv_prog_objcxx_g=yes
else
OBJCXXFLAGS=""
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_objcxx_try_compile "$LINENO"; then :
else
ac_objcxx_werror_flag=$ac_save_objcxx_werror_flag
OBJCXXFLAGS="-g"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_objcxx_try_compile "$LINENO"; then :
ac_cv_prog_objcxx_g=yes
fi
rm -f core conftest.err conftest.$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.$ac_ext
ac_objcxx_werror_flag=$ac_save_objcx_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_objcxx_g" >&5
$as_echo "$ac_cv_prog_objcxx_g" >&6; }
if test "$ac_test_OBJCXXFLAGS" = set; then
OBJCXXFLAGS=$ac_save_OBJCXXFLAGS
elif test $ac_cv_prog_objcxx_g = yes; then
if test "$GOBJCXX" = yes; then
OBJCXXFLAGS="-g -O2"
else
OBJCXXFLAGS="-g"
fi
else
if test "$GOBJCXX" = yes; then
OBJCXXFLAGS="-O2"
else
OBJCXXFLAGS=
fi
fi
ac_ext=c
ac_cpp='$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
SCPROXY=
NOSCPROXY=#
else
SCPROXY=#
NOSCPROXY=
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-cxx-main=<compiler>" >&5
$as_echo_n "checking for --with-cxx-main=<compiler>... " >&6; }

View file

@ -663,6 +663,25 @@ AC_PROG_SED
AC_SUBST(CXX)
AC_SUBST(MAINCC)
if test "$ac_sys_system" = "Darwin"
then
# MacOSX requires an Objective C compiler to
# build some Mac-specific code.
AC_PROG_OBJC
AC_PROG_OBJCXX
AC_SUBST(OBJC)
AC_SUBST(OBJCXX)
SCPROXY=
NOSCPROXY=#
else
SCPROXY=#
NOSCPROXY=
fi
AC_SUBST(SCPROXY)
AC_SUBST(NOSCPROXY)
AC_MSG_CHECKING(for --with-cxx-main=<compiler>)
AC_ARG_WITH(cxx_main,
AS_HELP_STRING([--with-cxx-main@<:@=COMPILER@:>@],

View file

@ -1583,10 +1583,11 @@ def detect_platform_specific_exts(self):
self.missing.append('ossaudiodev')
if MACOS:
self.add(Extension('_scproxy', ['_scproxy.c'],
self.add(Extension('_scproxy', [],
extra_link_args=[
'-framework', 'SystemConfiguration',
'-framework', 'CoreFoundation']))
'-framework', 'CoreFoundation'],
extra_objects=['Modules/_scproxy.o']))
def detect_compress_exts(self):
# Andrew Kuchling's zlib module. Note that some versions of zlib