Blame project/config/cfgdefs.sh

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# in projects where [ $mb_use_custom_cfgdefs = yes ],
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# cfgdefs.sh is invoked from within ./configure via
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# . $mb_project_dir/project/cfgdefs.sh
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# a successful return from cfgdefs.sh will be followed
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# by a second invocation of the config_copy() function,
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# reflecting any changes to common config variables
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# made by cfgdefs.sh.
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# finally, cfgdefs.sh may update the contents of the
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# config-time generated cfgdefs.mk.
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# cfgdefs helper functions
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. "$mb_project_dir/project/config/cfghost.sh"
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# sofort's config test framework
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. "$mb_project_dir/sofort/cfgtest/cfgtest.sh"
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for arg ; do
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	case "$arg" in
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		*)
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			error_msg ${arg#}: "unsupported config argument."
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			exit 2
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	esac
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done
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cfgdefs_set_cfghost_flavors()
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{
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	cfghost_set_target_cfghost
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	cfghost_set_native_cfghost
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}
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cfgdefs_detect_python_version()
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{
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	mb_internal_verinfo=$(mktemp)
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	if [ -z "$mb_internal_verinfo" ]; then
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		exit 2
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	fi
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	"$mb_native_cc" -E -dM "$mb_source_dir/Include/patchlevel.h" \
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		> "$mb_internal_verinfo"
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	python_major=$(grep '#define PY_MAJOR_VERSION ' "$mb_internal_verinfo" | cut -d' ' -f3)
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	python_minor=$(grep '#define PY_MINOR_VERSION ' "$mb_internal_verinfo" | cut -d' ' -f3)
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	python_micro=$(grep '#define PY_MICRO_VERSION ' "$mb_internal_verinfo" | cut -d' ' -f3)
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	if [ -z "$python_major" ] || [ -z "$python_minor" ] || [ -z "$python_micro" ]; then
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		error_msg "Could not properly parse Python's patchlevel.h"
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		exit 2
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	fi
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	python_ver="$python_major.$python_minor"
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	[ -z "$mb_package"  ] && mb_package='python'"$python_ver"
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	[ -z "$mb_nickname" ] && mb_nickname="$mb_package"
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	[ -z "$mb_pkgname"  ] && mb_pkgname="$mb_package"
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	[ -z "$mb_pkgdesc"  ] && mb_pkgdesc="$mb_package"
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}
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cfgdefs_output_custom_defs()
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{
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	sed \
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			-e 's/@python_ver@/'"$python_ver"'/g'       \
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			-e 's/@python_major@/'"$python_major"'/g'   \
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			-e 's/@python_minor@/'"$python_minor"'/g'   \
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			-e 's/@python_micro@/'"$python_micro"'/g'   \
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		"$mb_project_dir/project/config/cfgdefs.in"         \
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			>> "$mb_pwd/cfgdefs.mk"
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}
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cfgdefs_perform_common_tests()
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{
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	# headers
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	cfgtest_header_absence  'stropts.h'
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	cfgtest_header_presence 'stdatomic.h'
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	cfgtest_header_presence 'endian.h'
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	cfgtest_header_presence 'net/if.h'
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	cfgtest_header_presence 'sched.h'
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	cfgtest_header_presence 'sys/ioctl.h'
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	cfgtest_header_presence 'sys/sendfile.h'
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	cfgtest_header_presence 'sys/syscall.h'
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	cfgtest_header_presence 'sys/sysmacros.h'
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	cfgtest_header_presence 'sys/uio.h'
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	cfgtest_header_presence 'sys/xattr.h'
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	cfgtest_header_presence 'uuid.h'
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	cfgtest_header_presence 'uuid/uuid.h'
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	# interfaces
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	mb_cfgtest_headers='sys/epoll.h'
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	cfgtest_interface_presence 'epoll_create1'
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	mb_cfgtest_headers='sched.h'
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	cfgtest_interface_presence 'sched_get_priority_max'
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	cfgtest_interface_presence 'sched_rr_get_interval'
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	cfgtest_interface_presence 'sched_setaffinity'
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	cfgtest_interface_presence 'sched_setparam'
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	cfgtest_interface_presence 'sched_setscheduler'
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	mb_cfgtest_headers='sys/sendfile.h'
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	cfgtest_interface_presence 'sendfile'
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	# size of system types
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	cfgtest_newline
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	cfgtest_comment 'size of system types'
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	cfgtest_type_size 'short'
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	cfgtest_type_size 'int'
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	cfgtest_type_size 'long'
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	cfgtest_type_size 'long long'
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	cfgtest_type_size 'float'
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	cfgtest_type_size 'double'
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	cfgtest_type_size 'long double'
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	cfgtest_type_size 'void *'
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	mb_cfgtest_headers='stdint.h'
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	cfgtest_type_size 'uintptr_t'
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	mb_cfgtest_headers='stdbool.h'
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	cfgtest_type_size '_Bool'
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	mb_cfgtest_headers='stddef.h'
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	cfgtest_type_size 'size_t'
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	cfgtest_type_size 'wchar_t'
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	mb_cfgtest_headers='unistd.h'
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	cfgtest_type_size 'pid_t'
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	cfgtest_type_size 'off_t'
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	mb_cfgtest_headers='time.h'
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	cfgtest_type_size 'time_t'
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	mb_cfgtest_headers='stdio.h'
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	cfgtest_type_size 'fpos_t'
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	mb_cfgtest_headers='pthread.h'
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	cfgtest_type_size 'pthread_t'
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	# toolchain
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	cfgtest_newline
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	cfgtest_comment 'toolchain'
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	# x87
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	mb_code_snippet=''
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	mb_code_snippet="$mb_code_snippet "'void fn(void)'
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	mb_code_snippet="$mb_code_snippet "'{__asm__ __volatile__ ("fnstcw pcw");'
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	mb_code_snippet="$mb_code_snippet "' __asm__ __volatile__ ("fldcw  pcw");}'
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	if cfgtest_code_snippet "$mb_code_snippet"; then
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		cfgtest_cflags_append '-DHAVE_GCC_ASM_FOR_X87'
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	fi
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	# x64
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	mb_code_snippet=''
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	mb_code_snippet="$mb_code_snippet "'void fn(void)'
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	mb_code_snippet="$mb_code_snippet "'{__asm__ __volatile__ ("callq *%rax");}'
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	if cfgtest_code_snippet "$mb_code_snippet"; then
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		cfgtest_cflags_append '-DHAVE_GCC_ASM_FOR_X64'
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	fi
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	# IEEE 754: little endian / big endian
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	if $mb_cfgtest_cc -E -dM - < /dev/null \
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			| grep '__BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__' \
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			> /dev/null; then
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		cfgtest_cflags_append '-DDOUBLE_IS_LITTLE_ENDIAN_IEEE754'
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	elif $mb_cfgtest_cc -E -dM - < /dev/null \
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			| grep '__BYTE_ORDER__ __ORDER_BIG_ENDIAN__' \
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			> /dev/null; then
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		cfgtest_cflags_append '-DDOUBLE_IS_BIG_ENDIAN_IEEE754'
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	else
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		cfgtest_newline
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		cfgtest_comment 'cfgdefs.sh: cannot detect little/big endian,'
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		cfgtest_comment 'cfgdefs.sh: so defined both macros below.'
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		cfgtest_newline
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		cfgtest_cflags_append '-DDOUBLE_IS_LITTLE_ENDIAN_IEEE754'
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		cfgtest_cflags_append '-DDOUBLE_IS_BIG_ENDIAN_IEEE754'
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	fi
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	# getrandom: easier to simply test,
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	# than to test whether we need to test
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	# (and then test).
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	cfgtest_newline
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	cfgtest_comment 'getrandom'
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	mb_cfgtest_headers='sys/syscall.h'
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	if cfgtest_decl_presence 'SYS_getrandom'; then
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		cfgtest_cflags_append '-DHAVE_GETRANDOM_SYSCALL'
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	fi
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	# libintl
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	cfgtest_newline
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	cfgtest_comment 'libintl'
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	if cfgtest_library_presence -lintl; then
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		cfgtest_ldflags_append '-Wl,--as-needed -lintl -Wl,--no-as-needed'
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	fi
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	# libuuid
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	cfgtest_newline
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	cfgtest_comment 'libuuid'
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	if cfgtest_library_presence -luuid; then
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		cfgtest_ldflags_append '-Wl,--as-needed -luuid -Wl,--no-as-needed'
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	fi
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	# ncurses
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	cfgtest_newline
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	cfgtest_comment 'ncurses/ncursesw'
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	mb_cfgtest_headers='ncurses.h'
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	if [ $mb_cfgtest_cfgtype = 'target' ]; then
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		mb_cfgtest_makevar='CFLAGS_NCURSES'
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	else
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		mb_cfgtest_makevar='NATIVE_CC_CFLAGS'
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	fi
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	cfgtest_unit_header_presence 'curses.h'
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	cfgtest_unit_header_presence 'ncurses.h'
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	cfgtest_unit_header_presence 'ncurses/panel.h'  && mb_panel_wrapper='yes'
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	cfgtest_unit_header_presence 'ncursesw/panel.h' && mb_panel_wrapper='yes'
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	if cfgtest_unit_interface_presence 'is_term_resized'; then
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		cfgtest_makevar_append '-DHAVE_CURSES_IS_TERM_RESIZED'
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	fi
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	if cfgtest_unit_interface_presence 'resizeterm'; then
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		cfgtest_makevar_append '-DHAVE_CURSES_RESIZETERM'
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	fi
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	if cfgtest_unit_interface_presence 'resize_term'; then
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		cfgtest_makevar_append '-DHAVE_CURSES_RESIZE_TERM'
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	fi
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	# ncursesw
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	if cfgtest_unit_interface_presence 'mvwget_wch'; then
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		cfgtest_makevar_append '-DHAVE_NCURSESW'
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	fi
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	# ncurses: python refers to members of typedef struct _win_st WINDOW
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	cfgtest_makevar_append '-DNCURSES_INTERNALS'
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	# <panel.h>
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	if [ _${mb_panel_wrapper:-} = _yes ]; then
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		cfgtest_makevar_append '-I$(PROJECT_DIR)/wrappers'
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		unset mb_panel_wrapper
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	fi
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	# ncurses libs (common part)
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	mb_ncurses_libs='-lpanelw -lncursesw'
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	mb_ncurses_tinfo='-ltinfo'
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	if cfgtest_library_presence $mb_ncurses_tinfo; then
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		mb_ncurses_libs="$mb_ncurses_libs $mb_ncurses_tinfo"
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	fi
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}
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cfgdefs_perform_target_tests()
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{
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	# init
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	cfgtest_target_section
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	# common tests
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	cfgdefs_perform_common_tests
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	# ncurses libs
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	mb_cfgtest_makevar='LDFLAGS_NCURSES_LIBS'
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	cfgtest_makevar_append $mb_ncurses_libs
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	mb_cfgtest_makevar='LDFLAGS_NCURSES'
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	cfgtest_makevar_append \
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		'-Wl,--as-needed $(LDFLAGS_NCURSES_LIBS)' \
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		'-Wl,--no-as-needed'
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	mb_cfgtest_makevar='LDFLAGS_NCURSES_STATIC'
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	cfgtest_makevar_append '$(LDFLAGS_NCURSES)'
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	# openssl
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	cfgtest_newline
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	cfgtest_comment 'openssl/libressl'
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	mb_cfgtest_headers='openssl/x509.h'
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	if cfgtest_interface_presence 'X509_NAME_ENTRY_set'; then
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		cfgtest_cflags_append '-DOPENSSL_VERSION_1_1'
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	fi
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	# tcl/tk libc
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	cfgtest_newline
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	cfgtest_comment 'tcl/tk'
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	mb_tcltk_libs=
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	for mb_tcltk_ver in 8.9 8.8 8.7 8.6 8.5; do
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		if [ -z "$mb_tcltk_libs" ]; then
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			mb_tcltk_libs="-ltk$mb_tcltk_ver -ltcl$mb_tcltk_ver"
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			cfgtest_library_presence $mb_tcltk_libs \
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				|| mb_tcltk_libs=''
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		fi
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	done
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	mb_cfgtest_makevar='LDFLAGS_TCLTK_LIBS'
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	cfgtest_makevar_append "$mb_tcltk_libs"
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	mb_cfgtest_makevar='CFLAGS_TCLTK'
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	cfgtest_makevar_append '-DWITH_APPINIT'
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	mb_cfgtest_makevar='LDFLAGS_TCLTK'
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	cfgtest_makevar_append '$(LDFLAGS_TCLTK_LIBS)'
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	# sqlite
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	cfgtest_newline
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	cfgtest_comment 'sqlite3'
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	mb_cfgtest_makevar='CFLAGS_SQLITE'
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	cfgtest_makevar_append '-DMODULE_NAME=\"sqlite3\"'
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	cfgtest_makevar_append '-DSQLITE_OMIT_LOAD_EXTENSION'
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	mb_cfgtest_makevar='LDFLAGS_SQLITE'
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	cfgtest_makevar_append '-lsqlite3'
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	mb_cfgtest_makevar='LDFLAGS_SQLITE_STATIC'
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	cfgtest_makevar_append '$(LDFLAGS_SQLITE)'
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	# expat
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	cfgtest_newline
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	cfgtest_comment 'expat'
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	mb_cfgtest_makevar='CFLAGS_EXPAT'
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	cfgtest_makevar_append '-DXML_DEV_URANDOM'
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	mb_cfgtest_makevar='LDFLAGS_EXPAT'
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	cfgtest_makevar_append '-lexpat'
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	mb_cfgtest_makevar='LDFLAGS_EXPAT_STATIC'
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	cfgtest_makevar_append '$(LDFLAGS_EXPAT)'
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	# ndbm
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	cfgtest_newline
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	cfgtest_comment 'ndbm'
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	mb_cfgtest_makevar='CFLAGS_DBM'
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	cfgtest_unit_header_presence 'ndbm.h'
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	mb_cfgtest_makevar='LDFLAGS_DBM'
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	cfgtest_makevar_append '-lgdbm_compat'
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	mb_cfgtest_makevar='LDFLAGS_DBM_STATIC'
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	cfgtest_makevar_append '$(LDFLAGS_DBM)'
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	# static python library switches
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	cfgtest_newline
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	cfgtest_comment 'static python library switches'
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	mb_cfgtest_makevar='LDFLAGS_PYEXT_STATIC'
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	cfgtest_makevar_append '-Wl,--as-needed -lssl -lcrypto -Wl,--no-as-needed'
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	cfgtest_makevar_append '-Wl,--as-needed -luuid         -Wl,--no-as-needed'
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	cfgtest_makevar_append '-Wl,--as-needed -lbz2          -Wl,--no-as-needed'
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	cfgtest_makevar_append '-Wl,--as-needed -lffi          -Wl,--no-as-needed'
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	cfgtest_makevar_append '-Wl,--as-needed -lgdbm         -Wl,--no-as-needed'
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	cfgtest_makevar_append '-Wl,--as-needed -lreadline     -Wl,--no-as-needed'
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	cfgtest_makevar_append '-Wl,--as-needed -lintl         -Wl,--no-as-needed'
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	cfgtest_makevar_append '-Wl,--as-needed -lz            -Wl,--no-as-needed'
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	[ $python_major = '3' ] && \
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	cfgtest_makevar_append '-Wl,--as-needed -llzma         -Wl,--no-as-needed'
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	# pretty cfgdefs.mk
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	cfgtest_newline
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}
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cfgdefs_perform_native_tests()
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{
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	# init
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	cfgtest_native_section
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	# common tests
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	cfgdefs_perform_common_tests
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	# ncurses libs
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	cfgtest_ldflags_append $mb_ncurses_libs
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	# pretty cfgdefs.mk
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	cfgtest_newline
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}
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# cfghost
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cfgdefs_set_cfghost_flavors
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# python version info
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cfgdefs_detect_python_version
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# cfgdefs.in --> cfgdefs.mk
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cfgdefs_output_custom_defs
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# strict: some tests might fail
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set +e
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# target-specific tests
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cfgdefs_perform_target_tests
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# native system tests
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cfgdefs_perform_native_tests
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# strict: restore mode
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set -e
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# all done
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return 0