Alien-cares
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libcares/m4/cares-compilers.m4 view on Meta::CPAN
#***************************************************************************
#
# Copyright (C) 2009-2013 by Daniel Stenberg et al
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted, provided
# that the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation, and that the name of M.I.T. not be used in advertising or
# publicity pertaining to distribution of the software without specific,
# written prior permission. M.I.T. makes no representations about the
# suitability of this software for any purpose. It is provided "as is"
# without express or implied warranty.
#
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
# serial 75
dnl CARES_CHECK_COMPILER
dnl -------------------------------------------------
dnl Verify if the C compiler being used is known.
AC_DEFUN([CARES_CHECK_COMPILER], [
#
compiler_id="unknown"
compiler_num="0"
#
flags_dbg_all="unknown"
flags_dbg_yes="unknown"
flags_dbg_off="unknown"
flags_opt_all="unknown"
flags_opt_yes="unknown"
flags_opt_off="unknown"
#
flags_prefer_cppflags="no"
#
CARES_CHECK_COMPILER_DEC_C
CARES_CHECK_COMPILER_HPUX_C
CARES_CHECK_COMPILER_IBM_C
CARES_CHECK_COMPILER_INTEL_C
CARES_CHECK_COMPILER_CLANG
CARES_CHECK_COMPILER_GNU_C
CARES_CHECK_COMPILER_LCC
CARES_CHECK_COMPILER_SGI_MIPSPRO_C
CARES_CHECK_COMPILER_SGI_MIPS_C
CARES_CHECK_COMPILER_SUNPRO_C
CARES_CHECK_COMPILER_TINY_C
CARES_CHECK_COMPILER_WATCOM_C
#
if test "$compiler_id" = "unknown"; then
cat <<_EOF 1>&2
***
*** Warning: This configure script does not have information about the
*** compiler you are using, relative to the flags required to enable or
*** disable generation of debug info, optimization options or warnings.
***
*** Whatever settings are present in CFLAGS will be used for this run.
***
*** If you wish to help the c-ares project to better support your compiler
*** you can report this and the required info on the c-ares development
*** mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/
***
_EOF
fi
])
dnl CARES_CHECK_COMPILER_CLANG
dnl -------------------------------------------------
dnl Verify if compiler being used is clang.
AC_DEFUN([CARES_CHECK_COMPILER_CLANG], [
AC_BEFORE([$0],[CARES_CHECK_COMPILER_GNU_C])dnl
AC_MSG_CHECKING([if compiler is clang])
CURL_CHECK_DEF([__clang__], [], [silent])
if test "$curl_cv_have_def___clang__" = "yes"; then
AC_MSG_RESULT([yes])
compiler_id="CLANG"
clangver=`$CC -dumpversion`
clangvhi=`echo $clangver | cut -d . -f1`
clangvlo=`echo $clangver | cut -d . -f2`
compiler_num=`(expr $clangvhi "*" 100 + $clangvlo) 2>/dev/null`
flags_dbg_all="-g -g0 -g1 -g2 -g3"
flags_dbg_all="$flags_dbg_all -ggdb"
flags_dbg_all="$flags_dbg_all -gstabs"
flags_dbg_all="$flags_dbg_all -gstabs+"
flags_dbg_all="$flags_dbg_all -gcoff"
flags_dbg_all="$flags_dbg_all -gxcoff"
flags_dbg_all="$flags_dbg_all -gdwarf-2"
flags_dbg_all="$flags_dbg_all -gvms"
flags_dbg_yes="-g"
flags_dbg_off="-g0"
flags_opt_all="-O -O0 -O1 -O2 -Os -O3 -O4"
flags_opt_yes="-Os"
flags_opt_off="-O0"
else
AC_MSG_RESULT([no])
fi
])
dnl CARES_CHECK_COMPILER_DEC_C
dnl -------------------------------------------------
dnl Verify if compiler being used is DEC C.
AC_DEFUN([CARES_CHECK_COMPILER_DEC_C], [
AC_MSG_CHECKING([if compiler is DEC/Compaq/HP C])
CURL_CHECK_DEF([__DECC], [], [silent])
CURL_CHECK_DEF([__DECC_VER], [], [silent])
if test "$curl_cv_have_def___DECC" = "yes" &&
test "$curl_cv_have_def___DECC_VER" = "yes"; then
AC_MSG_RESULT([yes])
compiler_id="DEC_C"
flags_dbg_all="-g -g0 -g1 -g2 -g3"
flags_dbg_yes="-g2"
libcares/m4/cares-compilers.m4 view on Meta::CPAN
flags_opt_off="+O0"
else
AC_MSG_RESULT([no])
fi
])
dnl CARES_CHECK_COMPILER_IBM_C
dnl -------------------------------------------------
dnl Verify if compiler being used is IBM C.
AC_DEFUN([CARES_CHECK_COMPILER_IBM_C], [
AC_MSG_CHECKING([if compiler is IBM C])
CURL_CHECK_DEF([__IBMC__], [], [silent])
if test "$curl_cv_have_def___IBMC__" = "yes"; then
AC_MSG_RESULT([yes])
compiler_id="IBM_C"
flags_dbg_all="-g -g0 -g1 -g2 -g3"
flags_dbg_yes="-g"
flags_dbg_off=""
flags_opt_all="-O -O0 -O1 -O2 -O3 -O4 -O5"
flags_opt_all="$flags_opt_all -qnooptimize"
flags_opt_all="$flags_opt_all -qoptimize=0"
flags_opt_all="$flags_opt_all -qoptimize=1"
flags_opt_all="$flags_opt_all -qoptimize=2"
flags_opt_all="$flags_opt_all -qoptimize=3"
flags_opt_all="$flags_opt_all -qoptimize=4"
flags_opt_all="$flags_opt_all -qoptimize=5"
flags_opt_yes="-O2"
flags_opt_off="-qnooptimize"
flags_prefer_cppflags="yes"
else
AC_MSG_RESULT([no])
fi
])
dnl CARES_CHECK_COMPILER_INTEL_C
dnl -------------------------------------------------
dnl Verify if compiler being used is Intel C.
AC_DEFUN([CARES_CHECK_COMPILER_INTEL_C], [
AC_BEFORE([$0],[CARES_CHECK_COMPILER_GNU_C])dnl
AC_MSG_CHECKING([if compiler is Intel C])
CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent])
if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
AC_MSG_RESULT([yes])
compiler_num="$curl_cv_def___INTEL_COMPILER"
CURL_CHECK_DEF([__unix__], [], [silent])
if test "$curl_cv_have_def___unix__" = "yes"; then
compiler_id="INTEL_UNIX_C"
flags_dbg_all="-g -g0"
flags_dbg_yes="-g"
flags_dbg_off="-g0"
flags_opt_all="-O -O0 -O1 -O2 -O3 -Os"
flags_opt_yes="-O2"
flags_opt_off="-O0"
else
compiler_id="INTEL_WINDOWS_C"
flags_dbg_all="/ZI /Zi /zI /zi /ZD /Zd /zD /zd /Z7 /z7 /Oy /Oy-"
flags_dbg_all="$flags_dbg_all /debug"
flags_dbg_all="$flags_dbg_all /debug:none"
flags_dbg_all="$flags_dbg_all /debug:minimal"
flags_dbg_all="$flags_dbg_all /debug:partial"
flags_dbg_all="$flags_dbg_all /debug:full"
flags_dbg_all="$flags_dbg_all /debug:semantic_stepping"
flags_dbg_all="$flags_dbg_all /debug:extended"
flags_dbg_yes="/Zi /Oy-"
flags_dbg_off="/debug:none /Oy-"
flags_opt_all="/O /O0 /O1 /O2 /O3 /Od /Og /Og- /Oi /Oi-"
flags_opt_yes="/O2"
flags_opt_off="/Od"
fi
else
AC_MSG_RESULT([no])
fi
])
dnl CARES_CHECK_COMPILER_LCC
dnl -------------------------------------------------
dnl Verify if compiler being used is LCC.
AC_DEFUN([CARES_CHECK_COMPILER_LCC], [
AC_MSG_CHECKING([if compiler is LCC])
CURL_CHECK_DEF([__LCC__], [], [silent])
if test "$curl_cv_have_def___LCC__" = "yes"; then
AC_MSG_RESULT([yes])
compiler_id="LCC"
flags_dbg_all="-g"
flags_dbg_yes="-g"
flags_dbg_off=""
flags_opt_all=""
flags_opt_yes=""
flags_opt_off=""
else
AC_MSG_RESULT([no])
fi
])
dnl CARES_CHECK_COMPILER_SGI_MIPS_C
dnl -------------------------------------------------
dnl Verify if compiler being used is SGI MIPS C.
AC_DEFUN([CARES_CHECK_COMPILER_SGI_MIPS_C], [
AC_REQUIRE([CARES_CHECK_COMPILER_SGI_MIPSPRO_C])dnl
AC_MSG_CHECKING([if compiler is SGI MIPS C])
CURL_CHECK_DEF([__GNUC__], [], [silent])
CURL_CHECK_DEF([__sgi], [], [silent])
if test "$curl_cv_have_def___GNUC__" = "no" &&
test "$curl_cv_have_def___sgi" = "yes" &&
test "$compiler_id" = "unknown"; then
AC_MSG_RESULT([yes])
compiler_id="SGI_MIPS_C"
flags_dbg_all="-g -g0 -g1 -g2 -g3"
flags_dbg_yes="-g"
flags_dbg_off="-g0"
flags_opt_all="-O -O0 -O1 -O2 -O3 -Ofast"
flags_opt_yes="-O2"
flags_opt_off="-O0"
else
AC_MSG_RESULT([no])
fi
])
dnl CARES_CHECK_COMPILER_SGI_MIPSPRO_C
dnl -------------------------------------------------
libcares/m4/cares-compilers.m4 view on Meta::CPAN
return i;
]])
],[
tmp_compiler_works="yes"
],[
tmp_compiler_works="no"
echo " " >&6
sed 's/^/cc-fail: /' conftest.err >&6
echo " " >&6
])
dnl linking capability verification
if test "$tmp_compiler_works" = "yes"; then
AC_LINK_IFELSE([
AC_LANG_PROGRAM([[
]],[[
int i = 1;
return i;
]])
],[
tmp_compiler_works="yes"
],[
tmp_compiler_works="no"
echo " " >&6
sed 's/^/link-fail: /' conftest.err >&6
echo " " >&6
])
fi
dnl only do runtime verification when not cross-compiling
if test "x$cross_compiling" != "xyes" &&
test "$tmp_compiler_works" = "yes"; then
AC_RUN_IFELSE([
AC_LANG_PROGRAM([[
# ifdef __STDC__
# include <stdlib.h>
# endif
]],[[
int i = 0;
exit(i);
]])
],[
tmp_compiler_works="yes"
],[
tmp_compiler_works="no"
echo " " >&6
echo "run-fail: test program exited with status $ac_status" >&6
echo " " >&6
])
fi
dnl branch upon test result
if test "$tmp_compiler_works" = "yes"; then
ifelse($1,,:,[$1])
ifelse($2,,,[else
$2])
fi
])
dnl CARES_SET_COMPILER_BASIC_OPTS
dnl -------------------------------------------------
dnl Sets compiler specific options/flags which do not
dnl depend on configure's debug, optimize or warnings
dnl options.
AC_DEFUN([CARES_SET_COMPILER_BASIC_OPTS], [
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
#
if test "$compiler_id" != "unknown"; then
#
if test "$compiler_id" = "GNU_C" ||
test "$compiler_id" = "CLANG"; then
CARES_CONVERT_INCLUDE_TO_ISYSTEM
fi
#
tmp_save_CPPFLAGS="$CPPFLAGS"
tmp_save_CFLAGS="$CFLAGS"
tmp_CPPFLAGS=""
tmp_CFLAGS=""
#
case "$compiler_id" in
#
CLANG)
#
dnl Disable warnings for unused arguments, otherwise clang will
dnl warn about compile-time arguments used during link-time, like
dnl -O and -g and -pedantic.
tmp_CFLAGS="$tmp_CFLAGS -Qunused-arguments"
;;
#
DEC_C)
#
dnl Select strict ANSI C compiler mode
tmp_CFLAGS="$tmp_CFLAGS -std1"
dnl Turn off optimizer ANSI C aliasing rules
tmp_CFLAGS="$tmp_CFLAGS -noansi_alias"
dnl Generate warnings for missing function prototypes
tmp_CFLAGS="$tmp_CFLAGS -warnprotos"
dnl Change some warnings into fatal errors
tmp_CFLAGS="$tmp_CFLAGS -msg_fatal toofewargs,toomanyargs"
;;
#
GNU_C)
#
dnl Placeholder
tmp_CFLAGS="$tmp_CFLAGS"
;;
#
HP_UX_C)
#
dnl Disallow run-time dereferencing of null pointers
tmp_CFLAGS="$tmp_CFLAGS -z"
dnl Disable some remarks
dnl #4227: padding struct with n bytes to align member
dnl #4255: padding size of struct with n bytes to alignment boundary
tmp_CFLAGS="$tmp_CFLAGS +W 4227,4255"
;;
#
IBM_C)
#
dnl Ensure that compiler optimizations are always thread-safe.
tmp_CPPFLAGS="$tmp_CPPFLAGS -qthreaded"
libcares/m4/cares-compilers.m4 view on Meta::CPAN
SGI_MIPSPRO_C)
#
dnl Placeholder
tmp_CFLAGS="$tmp_CFLAGS"
;;
#
SUNPRO_C)
#
dnl Placeholder
tmp_CFLAGS="$tmp_CFLAGS"
;;
#
TINY_C)
#
dnl Placeholder
tmp_CFLAGS="$tmp_CFLAGS"
;;
#
WATCOM_UNIX_C)
#
dnl Placeholder
tmp_CFLAGS="$tmp_CFLAGS"
;;
#
WATCOM_WINDOWS_C)
#
dnl Placeholder
tmp_CFLAGS="$tmp_CFLAGS"
;;
#
esac
#
squeeze tmp_CPPFLAGS
squeeze tmp_CFLAGS
#
if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then
AC_MSG_CHECKING([if compiler accepts some basic options])
CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS"
CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
squeeze CPPFLAGS
squeeze CFLAGS
CARES_COMPILER_WORKS_IFELSE([
AC_MSG_RESULT([yes])
AC_MSG_NOTICE([compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS])
],[
AC_MSG_RESULT([no])
AC_MSG_WARN([compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS])
dnl restore initial settings
CPPFLAGS="$tmp_save_CPPFLAGS"
CFLAGS="$tmp_save_CFLAGS"
])
fi
#
fi
])
dnl CARES_SET_COMPILER_DEBUG_OPTS
dnl -------------------------------------------------
dnl Sets compiler specific options/flags which depend
dnl on configure's debug option.
AC_DEFUN([CARES_SET_COMPILER_DEBUG_OPTS], [
AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
#
if test "$compiler_id" != "unknown"; then
#
tmp_save_CFLAGS="$CFLAGS"
tmp_save_CPPFLAGS="$CPPFLAGS"
#
tmp_options=""
tmp_CFLAGS="$CFLAGS"
tmp_CPPFLAGS="$CPPFLAGS"
CARES_VAR_STRIP([tmp_CFLAGS],[$flags_dbg_all])
CARES_VAR_STRIP([tmp_CPPFLAGS],[$flags_dbg_all])
#
if test "$want_debug" = "yes"; then
AC_MSG_CHECKING([if compiler accepts debug enabling options])
tmp_options="$flags_dbg_yes"
fi
if test "$want_debug" = "no"; then
AC_MSG_CHECKING([if compiler accepts debug disabling options])
tmp_options="$flags_dbg_off"
fi
#
if test "$flags_prefer_cppflags" = "yes"; then
CPPFLAGS="$tmp_CPPFLAGS $tmp_options"
CFLAGS="$tmp_CFLAGS"
else
CPPFLAGS="$tmp_CPPFLAGS"
CFLAGS="$tmp_CFLAGS $tmp_options"
fi
squeeze CPPFLAGS
squeeze CFLAGS
CARES_COMPILER_WORKS_IFELSE([
AC_MSG_RESULT([yes])
AC_MSG_NOTICE([compiler options added: $tmp_options])
],[
AC_MSG_RESULT([no])
AC_MSG_WARN([compiler options rejected: $tmp_options])
dnl restore initial settings
CPPFLAGS="$tmp_save_CPPFLAGS"
CFLAGS="$tmp_save_CFLAGS"
])
#
fi
])
dnl CARES_SET_COMPILER_OPTIMIZE_OPTS
dnl -------------------------------------------------
dnl Sets compiler specific options/flags which depend
dnl on configure's optimize option.
AC_DEFUN([CARES_SET_COMPILER_OPTIMIZE_OPTS], [
AC_REQUIRE([CARES_CHECK_OPTION_OPTIMIZE])dnl
AC_REQUIRE([CARES_CHECK_COMPILER])dnl
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
#
if test "$compiler_id" != "unknown"; then
#
tmp_save_CFLAGS="$CFLAGS"
tmp_save_CPPFLAGS="$CPPFLAGS"
#
tmp_options=""
tmp_CFLAGS="$CFLAGS"
tmp_CPPFLAGS="$CPPFLAGS"
honor_optimize_option="yes"
#
dnl If optimization request setting has not been explicitly specified,
dnl it has been derived from the debug setting and initially assumed.
dnl This initially assumed optimizer setting will finally be ignored
dnl if CFLAGS or CPPFLAGS already hold optimizer flags. This implies
dnl that an initially assumed optimizer setting might not be honored.
#
if test "$want_optimize" = "assume_no" ||
test "$want_optimize" = "assume_yes"; then
AC_MSG_CHECKING([if compiler optimizer assumed setting might be used])
CARES_VAR_MATCH_IFELSE([tmp_CFLAGS],[$flags_opt_all],[
honor_optimize_option="no"
])
CARES_VAR_MATCH_IFELSE([tmp_CPPFLAGS],[$flags_opt_all],[
honor_optimize_option="no"
])
AC_MSG_RESULT([$honor_optimize_option])
if test "$honor_optimize_option" = "yes"; then
if test "$want_optimize" = "assume_yes"; then
want_optimize="yes"
fi
if test "$want_optimize" = "assume_no"; then
want_optimize="no"
fi
fi
fi
#
if test "$honor_optimize_option" = "yes"; then
CARES_VAR_STRIP([tmp_CFLAGS],[$flags_opt_all])
CARES_VAR_STRIP([tmp_CPPFLAGS],[$flags_opt_all])
if test "$want_optimize" = "yes"; then
AC_MSG_CHECKING([if compiler accepts optimizer enabling options])
tmp_options="$flags_opt_yes"
fi
if test "$want_optimize" = "no"; then
AC_MSG_CHECKING([if compiler accepts optimizer disabling options])
tmp_options="$flags_opt_off"
fi
if test "$flags_prefer_cppflags" = "yes"; then
CPPFLAGS="$tmp_CPPFLAGS $tmp_options"
CFLAGS="$tmp_CFLAGS"
else
CPPFLAGS="$tmp_CPPFLAGS"
CFLAGS="$tmp_CFLAGS $tmp_options"
fi
squeeze CPPFLAGS
squeeze CFLAGS
CARES_COMPILER_WORKS_IFELSE([
AC_MSG_RESULT([yes])
AC_MSG_NOTICE([compiler options added: $tmp_options])
],[
AC_MSG_RESULT([no])
AC_MSG_WARN([compiler options rejected: $tmp_options])
dnl restore initial settings
CPPFLAGS="$tmp_save_CPPFLAGS"
CFLAGS="$tmp_save_CFLAGS"
])
fi
#
fi
])
libcares/m4/cares-compilers.m4 view on Meta::CPAN
fi
;;
#
WATCOM_WINDOWS_C)
#
dnl Placeholder
tmp_CFLAGS="$tmp_CFLAGS"
;;
#
esac
#
squeeze tmp_CPPFLAGS
squeeze tmp_CFLAGS
#
if test ! -z "$tmp_CFLAGS" || test ! -z "$tmp_CPPFLAGS"; then
AC_MSG_CHECKING([if compiler accepts strict warning options])
CPPFLAGS="$tmp_save_CPPFLAGS $tmp_CPPFLAGS"
CFLAGS="$tmp_save_CFLAGS $tmp_CFLAGS"
squeeze CPPFLAGS
squeeze CFLAGS
CARES_COMPILER_WORKS_IFELSE([
AC_MSG_RESULT([yes])
AC_MSG_NOTICE([compiler options added: $tmp_CFLAGS $tmp_CPPFLAGS])
],[
AC_MSG_RESULT([no])
AC_MSG_WARN([compiler options rejected: $tmp_CFLAGS $tmp_CPPFLAGS])
dnl restore initial settings
CPPFLAGS="$tmp_save_CPPFLAGS"
CFLAGS="$tmp_save_CFLAGS"
])
fi
#
fi
])
dnl CARES_SHFUNC_SQUEEZE
dnl -------------------------------------------------
dnl Declares a shell function squeeze() which removes
dnl redundant whitespace out of a shell variable.
AC_DEFUN([CARES_SHFUNC_SQUEEZE], [
squeeze() {
_sqz_result=""
eval _sqz_input=\[$][$]1
for _sqz_token in $_sqz_input; do
if test -z "$_sqz_result"; then
_sqz_result="$_sqz_token"
else
_sqz_result="$_sqz_result $_sqz_token"
fi
done
eval [$]1=\$_sqz_result
return 0
}
])
dnl CARES_CHECK_CURLDEBUG
dnl -------------------------------------------------
dnl Settings which depend on configure's curldebug given
dnl option, and other additional configure pre-requisites.
dnl Using the curl debug memory tracking feature in c-ares
dnl is a hack that actually can only be used/enabled when
dnl c-ares is built directly in curl's CVS tree, as a static
dnl library or as a shared one on those systems on which
dnl shared libraries support undefined symbols, along with
dnl an equally configured libcurl.
AC_DEFUN([CARES_CHECK_CURLDEBUG], [
AC_REQUIRE([XC_LIBTOOL])dnl
AC_REQUIRE([CARES_SHFUNC_SQUEEZE])dnl
cares_builddir=`pwd`
supports_curldebug="unknown"
if test "$want_curldebug" = "yes"; then
if test "x$enable_shared" != "xno" &&
test "x$enable_shared" != "xyes"; then
AC_MSG_WARN([unknown enable_shared setting.])
supports_curldebug="no"
fi
if test "x$enable_static" != "xno" &&
test "x$enable_static" != "xyes"; then
AC_MSG_WARN([unknown enable_static setting.])
supports_curldebug="no"
fi
if test "$supports_curldebug" != "no"; then
if test "$enable_shared" = "yes" &&
test "x$xc_lt_shlib_use_no_undefined" = 'xyes'; then
supports_curldebug="no"
AC_MSG_WARN([shared library does not support undefined symbols.])
fi
if test ! -f "$srcdir/../include/curl/curlbuild.h.dist"; then
AC_MSG_WARN([c-ares source not embedded in curl's CVS tree.])
supports_curldebug="no"
elif test ! -f "$srcdir/../include/curl/Makefile.in"; then
AC_MSG_WARN([curl's buildconf has not been run.])
supports_curldebug="no"
elif test ! -f "$cares_builddir/../libcurl.pc" ||
test ! -f "$cares_builddir/../include/curl/curlbuild.h"; then
AC_MSG_WARN([curl's configure has not been run.])
supports_curldebug="no"
elif test ! -f "$cares_builddir/../lib/curl_config.h"; then
AC_MSG_WARN([libcurl's curl_config.h is missing.])
supports_curldebug="no"
elif test ! -f "$cares_builddir/../config.status"; then
AC_MSG_WARN([curl's config.status is missing.])
supports_curldebug="no"
fi
if test "$supports_curldebug" != "no"; then
grep '^#define USE_ARES' "$cares_builddir/../lib/curl_config.h" >/dev/null
if test "$?" -ne "0"; then
AC_MSG_WARN([libcurl configured without c-ares support.])
supports_curldebug="no"
fi
fi
if test "$supports_curldebug" != "no"; then
grep 'CPPFLAGS.*CURLDEBUG' "$cares_builddir/../config.status" >/dev/null
if test "$?" -ne "0"; then
AC_MSG_WARN([libcurl configured without curldebug support.])
supports_curldebug="no"
fi
fi
fi
fi
#
if test "$want_curldebug" = "yes"; then
AC_MSG_CHECKING([if curl debug memory tracking can be enabled])
test "$supports_curldebug" = "no" || supports_curldebug="yes"
AC_MSG_RESULT([$supports_curldebug])
if test "$supports_curldebug" = "no"; then
AC_MSG_WARN([cannot enable curl debug memory tracking.])
want_curldebug="no"
fi
fi
#
if test "$want_curldebug" = "yes"; then
dnl TODO: Verify if the BUILDING_LIBCURL definition is still required.
AC_DEFINE(BUILDING_LIBCURL, 1, [when building as static part of libcurl])
CPPFLAGS="-DCURLDEBUG $CPPFLAGS"
squeeze CPPFLAGS
fi
#
if test "$want_debug" = "yes"; then
CPPFLAGS="-DDEBUGBUILD $CPPFLAGS"
squeeze CPPFLAGS
fi
])
dnl CARES_CHECK_COMPILER_HALT_ON_ERROR
dnl -------------------------------------------------
dnl Verifies if the compiler actually halts after the
dnl compilation phase without generating any object
dnl code file, when the source compiles with errors.
AC_DEFUN([CARES_CHECK_COMPILER_HALT_ON_ERROR], [
AC_MSG_CHECKING([if compiler halts on compilation errors])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
]],[[
force compilation error
]])
],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([compiler does not halt on compilation errors.])
],[
AC_MSG_RESULT([yes])
])
])
dnl CARES_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE
dnl -------------------------------------------------
dnl Verifies if the compiler actually halts after the
dnl compilation phase without generating any object
dnl code file, when the source code tries to define a
dnl type for a constant array with negative dimension.
AC_DEFUN([CARES_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE], [
AC_REQUIRE([CARES_CHECK_COMPILER_HALT_ON_ERROR])dnl
AC_MSG_CHECKING([if compiler halts on negative sized arrays])
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
typedef char bad_t[sizeof(char) == sizeof(int) ? -1 : -1 ];
]],[[
bad_t dummy;
]])
],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([compiler does not halt on negative sized arrays.])
],[
AC_MSG_RESULT([yes])
])
])
dnl CARES_CHECK_COMPILER_STRUCT_MEMBER_SIZE
dnl -------------------------------------------------
dnl Verifies if the compiler is capable of handling the
dnl size of a struct member, struct which is a function
dnl result, as a compilation-time condition inside the
dnl type definition of a constant array.
( run in 0.918 second using v1.01-cache-2.11-cpan-f5b5a18a01a )