Blame sofort/cfgtest/cfgtest.sh

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# cfgtest.sh: sofort's config test framework,
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# for use from within a project's custom cfgdefs.sh.
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# this file is covered by COPYING.SOFORT.
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# in the common scenario, host-specific tests are preceded
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# by a single invocation of cfgtest_host_section, whereas
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# native (build) system tests are preceded by the invocation
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# of cfgtest_native_section.
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# cfgdefs fraework variables:
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# mb_cfgtest_cc:      the compiler used for the current test
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# mb_cfgtest_pkgconf: the pkgconf utility used for the current test
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# mb_cfgtest_cflags:  the compiler flags used for the current test
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# mb_cfgtest_cfgtype: the type of the current test (host/native)
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# mb_cfgtest_makevar: the make variable affected by the current test
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# mb_cfgtest_headers: headers for ad-hoc inclusion with the current test
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# mb_cfgtest_attr:    if supported, the compiler-specific attribute definition
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cfgtest_newline()
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{
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	printf '\n' >> $mb_pwd/cfgdefs.mk
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}
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cfgtest_comment()
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{
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	mb_internal_str='#'
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	for mb_internal_arg ; do
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		mb_internal_str="$mb_internal_str $mb_internal_arg"
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	done
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	printf '%s\n' "$mb_internal_str" >> $mb_pwd/cfgdefs.mk
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}
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cfgtest_host_section()
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{
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	mb_cfgtest_cc="$ccenv_host_cc"
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	mb_cfgtest_pkgconf="${ccenv_host_pkgconf:-false}"
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	mb_cfgtest_cfgtype='host'
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	mb_cfgtest_stdin_input=${ccenv_host_stdin_input:-}
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	mb_cfgtest_environment=${ccenv_host_cc_environment:-}
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	mb_cfgtest_cflags=$(${mb_make} -n -f "$mb_pwd/Makefile.tmp" \
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		OS_DSO_EXRULES=default                              \
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		OS_SONAME=symlink                                   \
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		OS_ARCHIVE_EXT='.a'                                 \
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		.cflags-host)
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	mb_cfgtest_cflags="${mb_cfgtest_cflags#*: }"
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	mb_cfgtest_ldflags=$(${mb_make} -n -f "$mb_pwd/Makefile.tmp" \
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		OS_DSO_EXRULES=default                               \
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		OS_SONAME=symlink                                    \
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		OS_ARCHIVE_EXT='.a'                                  \
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		.ldflags-host)
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	mb_cfgtest_ldflags="${mb_cfgtest_ldflags#*: }"
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}
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cfgtest_native_section()
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{
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	mb_cfgtest_cc="$ccenv_native_cc"
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	mb_cfgtest_pkgconf="${ccenv_native_pkgconf:-false}"
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	mb_cfgtest_cfgtype='native'
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	mb_cfgtest_stdin_input=${ccenv_native_stdin_input:-}
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	mb_cfgtest_environment=${ccenv_native_cc_environment:-}
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	mb_cfgtest_cflags=$(${mb_make} -n -f "$mb_pwd/Makefile.tmp" \
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		OS_DSO_EXRULES=default                              \
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		OS_SONAME=symlink                                   \
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		OS_ARCHIVE_EXT='.a'                                 \
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		.cflags-native)
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	mb_cfgtest_cflags="${mb_cfgtest_cflags#*: }"
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	mb_cfgtest_ldflags=$(${mb_make} -n -f "$mb_pwd/Makefile.tmp" \
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		OS_DSO_EXRULES=default                               \
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		OS_SONAME=symlink                                    \
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		OS_ARCHIVE_EXT='.a'                                  \
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		.ldflags-native)
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	mb_cfgtest_ldflags="${mb_cfgtest_ldflags#*: }"
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}
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cfgtest_prolog()
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{
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	cfgtest_line_dots='...........................'
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	cfgtest_line_dots="${cfgtest_line_dots}${cfgtest_line_dots}"
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	cfgtest_tool_desc=" == trying ${mb_cfgtest_cfgtype} ${1}: ${2}"
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	cfgtest_tool_dlen="${#cfgtest_line_dots}"
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	printf '\n%s\n' '________________________' >&3
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	printf "cfgtest: probing for ${mb_cfgtest_cfgtype} ${1}: ${2}\n\n" >&3
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	if [ "${cfgtest_silent:-}" != 'yes' ]; then
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		printf "%${cfgtest_tool_dlen}.${cfgtest_tool_dlen}s" \
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			"${cfgtest_tool_desc}  ${mb_line_dots}"
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	fi
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}
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cfgtest_epilog()
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{
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	cfgtest_line_dots='...............'
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	cfgtest_tool_dlen="$((${#cfgtest_line_dots} - ${#2}))"
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	if [ "${cfgtest_silent:-}" != 'yes' ]; then
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		printf "%${cfgtest_tool_dlen}.${cfgtest_tool_dlen}s  %s.\n" \
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			"${cfgtest_line_dots}" "${2}"
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	fi
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	if [ "${1}" = 'snippet' ] && [ -f 'a.out' ]; then
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		rm -f 'a.out'
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	fi
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	if [ "$mb_cfgtest_stdin_input" = 'no' ]; then
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		rm 'cfgtest_c3RyaWN0X21vZGUK.c'
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	fi
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	if [ "${1}" = 'snippet' ] && [ "${2}" = '(error)' ]; then
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		printf '\n\ncfgtest: the %s compiler %s %s.\n' \
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			"$mb_cfgtest_cfgtype"                 \
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			'failed to compile the above code'   \
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			"${1}" >&3
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		printf '%s\n' '------------------------' >&3
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		return 1
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	fi
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	if [ "${1}" = 'attr' ] && [ "${2}" = '(error)' ]; then
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		printf '\n\ncfgtest: the %s compiler %s %s_ attribute.\n' \
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			"$mb_cfgtest_cfgtype"                            \
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			'does not appear to support the _'              \
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			"${3}" >&3
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		printf '%s\n' '------------------------' >&3
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		return 1
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	fi
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	if [ "${2}" = '-----' ] || [ "${2}" = '(missing)' ]; then
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		printf '\n\ncfgtest: %s %s is missing or cannot be found.\n' "${1}" "${3}" >&3
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		printf '%s\n' '------------------------' >&3
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		return 1
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	elif [ "${1}" = 'size-of-type' ] && [ "${2}" = '(error)' ]; then
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		printf '\n\ncfgtest: could not determine size of type `%s.\n' "${3}'" >&3
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		printf '%s\n' '------------------------' >&3
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		return 1
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	elif [ "${1}" = 'switch' ] && [ "${2}" = '(error)' ]; then
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		printf '\n\ncfgtest: the switch `%s is not supported by the %s compiler.\n' \
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			"${3}'" "$mb_cfgtest_cfgtype" >&3
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		printf '%s\n' '------------------------' >&3
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		return 1
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	elif [ "${2}" = '(error)' ]; then
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		printf '\n\ncfgtest: %s `%s is not defined or cannot be used.\n' "${1}" "${3}'" >&3
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		printf '%s\n' '------------------------' >&3
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		return 1
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	fi
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}
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cfgtest_entity_size_prolog()
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{
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	cfgtest_line_dots='.......................'
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	cfgtest_line_dots="${cfgtest_line_dots}${cfgtest_line_dots}"
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	cfgtest_tool_desc=" == checking size of ${mb_cfgtest_cfgtype} type: ${@}"
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	cfgtest_tool_dlen="${#cfgtest_line_dots}"
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	printf '\n%s\n' '________________________' >&3
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	printf "cfgtest: checking size of ${mb_cfgtest_cfgtype} type: ${@}\n\n" >&3
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	printf "%${cfgtest_tool_dlen}.${cfgtest_tool_dlen}s" \
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		"${cfgtest_tool_desc}  ${mb_line_dots}"
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}
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cfgtest_makevar_set()
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{
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	if [ -n "${@}" ]; then
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		mb_internal_str='= '
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	else
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		mb_internal_str='='
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	fi
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	printf '%-25s%s%s\n' "$mb_cfgtest_makevar" "$mb_internal_str" "${@}" \
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		>> $mb_pwd/cfgdefs.mk
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	unset cfgtest_internal_unit_test
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}
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cfgtest_makevar_append()
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{
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	mb_internal_str='+='
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	for mb_internal_arg ; do
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		if ! [ -z "$mb_internal_arg" ]; then
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			mb_internal_str="$mb_internal_str $mb_internal_arg"
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		fi
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	done
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	printf '%-24s%s\n' "$mb_cfgtest_makevar" "$mb_internal_str" \
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		>> $mb_pwd/cfgdefs.mk
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	unset cfgtest_internal_unit_test
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}
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cfgtest_cflags_append()
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{
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	if [ $mb_cfgtest_cfgtype = 'host' ]; then
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		mb_internal_makevar='CFLAGS_CONFIG'
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	else
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		mb_internal_makevar='NATIVE_CFLAGS'
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	fi
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	mb_cfgtest_makevar_saved=$mb_cfgtest_makevar
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	mb_cfgtest_makevar=$mb_internal_makevar
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	cfgtest_makevar_append "$@"
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	mb_cfgtest_makevar=$mb_cfgtest_makevar_saved
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}
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cfgtest_ldflags_append()
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{
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	if [ $mb_cfgtest_cfgtype = 'host' ]; then
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		mb_internal_makevar='LDFLAGS_CONFIG'
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	else
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		mb_internal_makevar='NATIVE_LDFLAGS'
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	fi
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	mb_cfgtest_makevar_saved=$mb_cfgtest_makevar
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	mb_cfgtest_makevar=$mb_internal_makevar
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	cfgtest_makevar_append "$@"
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	mb_cfgtest_makevar=$mb_cfgtest_makevar_saved
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}
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cfgtest_common_init()
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{
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	# cfgtest variables
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	cfgtest_type="${1:-}"
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	if [ "$mb_cfgtest_stdin_input" = 'no' ]; then
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		if [ "$cfgtest_type" = 'lib' ]; then
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			cfgtest_fmt='%s cfgtest_c3RyaWN0X21vZGUK.c -o a.out'
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		elif [ "$cfgtest_type" = 'ldflag' ]; then
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			cfgtest_fmt='%s cfgtest_c3RyaWN0X21vZGUK.c -o a.out'
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		else
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			cfgtest_fmt='%s -c cfgtest_c3RyaWN0X21vZGUK.c -o a.out'
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		fi
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	elif [ "$cfgtest_type" = 'asm' ]; then
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		cfgtest_fmt='%s -c -xc - -o a.out'
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	elif [ "$cfgtest_type" = 'attr' ]; then
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		cfgtest_fmt='%s -c -xc - -o a.out -Werror'
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	elif [ "$cfgtest_type" = 'lib' ]; then
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		cfgtest_fmt='%s -xc - -o a.out'
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	elif [ "$cfgtest_type" = 'ldflag' ]; then
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		cfgtest_fmt='%s -xc - -o a.out'
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	else
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		cfgtest_fmt='%s -S -xc - -o -'
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	fi
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	if [ "$cfgtest_type" = 'lib' ]; then
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		cfgtest_cmd=$(printf "$cfgtest_fmt %s %s %s" \
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			"$mb_cfgtest_cc"                     \
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			"$mb_cfgtest_cflags"                 \
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			"$mb_cfgtest_ldflags"                \
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			"$cfgtest_libs")
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	elif [ "$cfgtest_type" = 'ldflag' ]; then
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		cfgtest_cmd=$(printf "$cfgtest_fmt %s %s %s" \
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			"$mb_cfgtest_cc"                     \
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			"$mb_cfgtest_cflags"                 \
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			"$mb_cfgtest_ldflags"                \
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			"$cfgtest_switches")
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	elif [ "$cfgtest_type" = 'switch' ]; then
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		cfgtest_cmd=$(printf "$cfgtest_fmt %s %s" \
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			"$mb_cfgtest_cc"                  \
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			"$mb_cfgtest_cflags"              \
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			"$cfgtest_switches")
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	else
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		cfgtest_cmd=$(printf "$cfgtest_fmt %s" \
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			"$mb_cfgtest_cc"               \
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			"$mb_cfgtest_cflags")
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	fi
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	if [ -n "$mb_cfgtest_headers" ]; then
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		cfgtest_inc=$(printf '#include <%s>\n' $mb_cfgtest_headers)
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		cfgtest_src=$(printf '%s\n_\n' "$cfgtest_inc" \
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			| m4 -D_="$cfgtest_code_snippet")
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	else
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		cfgtest_inc=
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		cfgtest_src="$cfgtest_code_snippet"
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	fi
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	# config.log
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	printf "$cfgtest_fmt" "$mb_cfgtest_cc" >&3
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	for cfgtest_cflag in $(printf '%s' "$mb_cfgtest_cflags"); do
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		printf ' \\\n\t%s' "$cfgtest_cflag" >&3
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	done
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	for cfgtest_ldflag in $(printf '%s' "$mb_cfgtest_ldflags"); do
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		printf ' \\\n\t%s' "$cfgtest_ldflag" >&3
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	done
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	if [ "$cfgtest_type" = 'lib' ]; then
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		for cfgtest_lib in $(printf '%s' "$cfgtest_libs"); do
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			printf ' \\\n\t%s' "$cfgtest_lib" >&3
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		done
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	elif [ "$cfgtest_type" = 'switch' ] || [ "$cfgtest_type" = 'ldflag' ]; then
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		for cfgtest_switch in $(printf '%s' "$cfgtest_switches"); do
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			printf ' \\\n\t%s' "$cfgtest_switch" >&3
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		done
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	fi
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	printf ' \\\n'                           >&3
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	printf '<< _SRCEOF\n%s\n' "$cfgtest_src" >&3
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	printf '_SRCEOF\n\n\n'                   >&3
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	if [ "$mb_cfgtest_stdin_input" = 'no' ]; then
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		printf '%s' "$cfgtest_src" > 'cfgtest_c3RyaWN0X21vZGUK.c'
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		cfgtest_src=
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	fi
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}
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cfgtest_header_presence()
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{
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	#init
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	cfgtest_prolog 'header' "${1}"
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	cfgtest_code_snippet=$(printf '#include <%s>\n' "${1}")
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	cfgtest_common_init
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	# execute
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	printf '%s' "$cfgtest_src"                  \
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		| eval $(printf '%s' "$cfgtest_cmd") \
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		> /dev/null 2>&3                      \
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	|| cfgtest_epilog 'header' '-----' "<${1}>"    \
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	|| return
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	# result
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	mb_internal_str=$(printf '%s%s' '-DHAVE_' "${1}"  \
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			| sed -e 's/\./_/g' -e 's@/@_@g'  \
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			| tr "[:lower:]" "[:upper:]")
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	if [ -z ${cfgtest_internal_unit_test:-} ]; then
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		cfgtest_cflags_append "$mb_internal_str"
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	else
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		cfgtest_makevar_append "$mb_internal_str"
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	fi
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	printf 'cfgtest: %s header <%s> was found and may be included.\n' \
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		"$mb_cfgtest_cfgtype" "${1}" >&3
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	printf '%s\n' '------------------------' >&3
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	cfgtest_epilog 'header' "${1}"
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}
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cfgtest_header_absence()
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{
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	#init
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	cfgtest_prolog 'header absence' "${1}"
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	cfgtest_code_snippet=$(printf '#include <%s>\n' "${1}")
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	cfgtest_common_init
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	# execute
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	printf '%s' "$cfgtest_src"                  \
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		| eval $(printf '%s' "$cfgtest_cmd") \
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		> /dev/null 2>&3                      \
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	&& printf 'cfgtest: %s header <%s>: no error.' \
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		"$mb_cfgtest_cfgtype" "${1}" >&3        \
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	&& cfgtest_epilog 'header' "${1}"                \
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	&& return
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	# result
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	mb_internal_str=$(printf '%s%s' '-DHAVE_NO_' "$@" \
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			| sed -e 's/\./_/g' -e 's@/@_@g'  \
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			| tr "[:lower:]" "[:upper:]")
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	if [ -z ${cfgtest_internal_unit_test:-} ]; then
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		cfgtest_cflags_append "$mb_internal_str"
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	else
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		cfgtest_makevar_append "$mb_internal_str"
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	fi
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	printf 'cfgtest: %s header <%s> may not be included.\n' \
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		"$mb_cfgtest_cfgtype" "${1}" >&3
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	printf '%s\n' '------------------------' >&3
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	cfgtest_epilog 'header' '-----' "${1}"
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}
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cfgtest_interface_presence()
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{
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	# init
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	cfgtest_prolog 'interface' "${1}"
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	cfgtest_code_snippet=$(printf 'void * addr = &%;;\n' "${1}")
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	cfgtest_common_init
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	# execute
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	printf '%s' "$cfgtest_src"                    \
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		| eval $(printf '%s' "$cfgtest_cmd")   \
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		> /dev/null 2>&3                        \
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	|| cfgtest_epilog 'interface' '(error)' "${1}"   \
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	|| return
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	# result
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	mb_internal_str=$(printf '%s%s' '-DHAVE_' "$@"  \
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			| sed -e 's/\./_/g'             \
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			| tr "[:lower:]" "[:upper:]")
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	if [ -z ${cfgtest_internal_unit_test:-} ]; then
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		cfgtest_cflags_append "$mb_internal_str"
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	else
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		cfgtest_makevar_append "$mb_internal_str"
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	fi
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	printf 'cfgtest: %s interface `%s'"'"' is available.\n' \
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		"$mb_cfgtest_cfgtype" "${1}" >&3
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	printf '%s\n' '------------------------' >&3
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	cfgtest_epilog 'interface' "${1}"
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	return 0
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}
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cfgtest_decl_presence()
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{
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	# init
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	cfgtest_prolog 'decl' "${1}"
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	cfgtest_code_snippet=$(printf 'void * any = (void *)(%s);' "${1}")
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	cfgtest_common_init
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	# execute
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	printf '%s' "$cfgtest_src"                  \
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		| eval $(printf '%s' "$cfgtest_cmd") \
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		> /dev/null 2>&3                      \
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	|| cfgtest_epilog 'decl' '(error)' "${1}"      \
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	|| return
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	# does the argument solely consist of the macro or enum member name?
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	mb_internal_str=$(printf '%s' "$@" | tr -d '[a-z][A-Z][0-9][_]')
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	if [ -n "$mb_internal_str" ]; then
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		cfgtest_epilog 'decl' '(defined)'
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		return 0
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	fi
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	# result
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	mb_internal_str=$(printf '%s%s' '-DHAVE_DECL_' "$@"  \
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			| sed -e 's/\./_/g'                  \
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			| tr "[:lower:]" "[:upper:]")
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	if [ -z ${cfgtest_internal_unit_test:-} ]; then
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		cfgtest_cflags_append "$mb_internal_str"
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	else
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		cfgtest_makevar_append "$mb_internal_str"
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	fi
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	printf 'cfgtest: `%s'"'"' is defined for the %s system.\n' \
89181f
		"${1}" "$mb_cfgtest_cfgtype" >&3
89181f
	printf '%s\n' '------------------------' >&3
89181f
89181f
	cfgtest_epilog 'decl' '(defined)'
89181f
89181f
	return 0
89181f
}
89181f
89181f
89181f
cfgtest_type_size()
89181f
{
89181f
	cfgtest_entity_size_prolog "$@"
89181f
89181f
	mb_internal_size=''
89181f
	mb_internal_test='char x[(sizeof(%s) == %s) ? 1 : -1];'
89181f
89181f
	for mb_internal_guess in 8 4 2 1 16 32 64 128; do
89181f
		if [ -z $mb_internal_size ]; then
89181f
			printf '# guess %s ===>\n' "$mb_internal_guess" >&3
89181f
89181f
			mb_internal_type="$@"
89181f
89181f
			cfgtest_code_snippet=$(printf "$mb_internal_test" \
89181f
				"$mb_internal_type" "$mb_internal_guess")
89181f
89181f
			cfgtest_common_init
89181f
89181f
			printf '%s' "$cfgtest_src"                  \
89181f
				| eval $(printf '%s' "$cfgtest_cmd") \
89181f
				> /dev/null 2>&3                      \
89181f
			&& mb_internal_size=$mb_internal_guess
89181f
89181f
			printf '\n' >&3
89181f
		fi
89181f
	done
89181f
89181f
	# unrecognized type, or type size not within range
89181f
	if [ -z $mb_internal_size ]; then
89181f
		cfgtest_epilog 'size-of-type' '(error)' "@"
89181f
		return 1
89181f
	fi
89181f
89181f
	# -DSIZEOF_TYPE=SIZE
89181f
	mb_internal_str=$(printf '%s%s=%s' '-DSIZEOF_'        \
89181f
				"$mb_internal_type"           \
89181f
				"$mb_internal_size"           \
89181f
			| sed -e 's/\ /_/g' -e 's/*/P/g'      \
89181f
			| tr "[:lower:]" "[:upper:]")
89181f
89181f
	if [ -z ${cfgtest_internal_unit_test:-} ]; then
89181f
		cfgtest_cflags_append "$mb_internal_str"
89181f
	else
89181f
		cfgtest_makevar_append "$mb_internal_str"
89181f
	fi
89181f
89181f
	printf 'cfgtest: size of type `%s'"'"' determined to be %s\n' \
89181f
		"${@}" "$mb_internal_size" >&3
89181f
	printf '%s\n' '------------------------' >&3
89181f
89181f
	cfgtest_epilog 'size-of-type' "$mb_internal_size"
89181f
89181f
	return 0
89181f
}
89181f
89181f
542261
cfgtest_attr_visibility()
542261
{
542261
	# init
542261
	cfgtest_prolog 'compiler visibility attr' "${1}"
542261
542261
	cfgtest_attr_syntax='__attribute__((__visibility__("'"${1}"'")))'
542261
	cfgtest_code_snippet="$cfgtest_attr_syntax"' int f_'"${1}"'(void);'
542261
542261
	cfgtest_common_init 'attr'
542261
542261
	# execute
542261
	cfgtest_ret=1
542261
542261
	printf '%s' "$cfgtest_src"                  \
542261
		| eval $(printf '%s' "$cfgtest_cmd") \
542261
		> /dev/null 2>&3                      \
542261
	|| cfgtest_epilog 'attr' '(error)' "${1}"      \
542261
	|| return
542261
542261
	# result
542261
	mb_cfgtest_attr=$(printf '__attribute__\\(\\(__visibility__\\(\\"%s\\"\\)\\)\\)' "${1}")
542261
542261
	cfgtest_ret=0
542261
542261
	printf 'cfgtest: %s compiler: above attribute is supported; see also ccenv/%s.mk.\n\n' \
542261
		"$mb_cfgtest_cfgtype" "$mb_cfgtest_cfgtype" >&3
542261
542261
	cfgtest_epilog 'attr' '(ok)'
542261
542261
	return 0
542261
}
542261
542261
89181f
cfgtest_code_snippet_asm()
89181f
{
89181f
	# init
89181f
	cfgtest_prolog 'support of code snippet' '<...>'
89181f
89181f
	cfgtest_code_snippet="$@"
89181f
89181f
	cfgtest_common_init 'asm'
89181f
89181f
	# execute
89181f
	cfgtest_ret=1
89181f
89181f
	printf '%s' "$cfgtest_src"                  \
89181f
		| eval $(printf '%s' "$cfgtest_cmd") \
89181f
		> /dev/null 2>&3                      \
89181f
	|| cfgtest_epilog 'snippet' '(error)'          \
89181f
	|| return
89181f
89181f
	# result
89181f
	cfgtest_ret=0
89181f
89181f
	printf 'cfgtest: %s compiler: above code snippet compiled successfully.\n\n' \
89181f
		"$mb_cfgtest_cfgtype" >&3
89181f
89181f
	cfgtest_epilog 'snippet' '(ok)'
89181f
89181f
	return 0
89181f
}
89181f
89181f
83fb7c
cfgtest_macro_definition()
83fb7c
{
83fb7c
	# init
83fb7c
	cfgtest_prolog 'macro definition' "${1}"
83fb7c
83fb7c
	cfgtest_code_snippet=$(printf '%s\n'      \
83fb7c
		"#ifndef ${1}"                     \
83fb7c
		"#error macro ${1} is not defined." \
83fb7c
		"#endif")
83fb7c
83fb7c
	cfgtest_common_init 'macro'
83fb7c
83fb7c
	# execute
83fb7c
	cfgtest_ret=1
83fb7c
83fb7c
	printf '%s' "$cfgtest_src"                  \
83fb7c
		| eval $(printf '%s' "$cfgtest_cmd") \
83fb7c
		> /dev/null 2>&3                      \
83fb7c
	|| cfgtest_epilog 'macro' '(error)' "${1}"     \
83fb7c
	|| return
83fb7c
83fb7c
	# result
83fb7c
	cfgtest_ret=0
83fb7c
83fb7c
	printf 'cfgtest: %s compiler: above macro definition test compiled successfully.\n\n' \
83fb7c
		"$mb_cfgtest_cfgtype" >&3
83fb7c
83fb7c
	cfgtest_epilog 'macro' '(defined)'
83fb7c
83fb7c
	return 0
83fb7c
}
83fb7c
83fb7c
89181f
cfgtest_library_presence()
89181f
{
89181f
	# init
89181f
	cfgtest_libs=
89181f
	cfgtest_spc=
89181f
89181f
	for cfgtest_lib in ${@}; do
89181f
		cfgtest_libs="$cfgtest_libs$cfgtest_spc$cfgtest_lib"
89181f
		cfgtest_spc=' '
89181f
	done
89181f
89181f
	if [ "${1}" = "$cfgtest_libs" ]; then
89181f
		cfgtest_prolog 'library' "${1#*-l}"
89181f
	else
89181f
		cfgtest_prolog 'lib module' '(see config.log)'
89181f
	fi
89181f
4ad561
	if [ "$mb_cfgtest_environment" = 'freestanding' ]; then
4ad561
		if [ -z "ccenv_cc_underscore" ]; then
4ad561
			cfgtest_code_snippet='int start(void){return 0;}'
4ad561
		else
4ad561
			cfgtest_code_snippet='int _start(void){return 0;}'
4ad561
		fi
4ad561
	else
4ad561
		cfgtest_code_snippet='int main(void){return 0;}'
4ad561
	fi
89181f
89181f
	cfgtest_common_init 'lib'
89181f
89181f
	# execute
89181f
	printf '%s' "$cfgtest_src"                  \
89181f
		| eval $(printf '%s' "$cfgtest_cmd") \
89181f
		> /dev/null 2>&3                      \
89181f
	|| cfgtest_epilog 'library' '-----' "$@"       \
89181f
	|| return 1
89181f
89181f
	# result
89181f
	printf 'cfgtest: `%s'"'"' was accepted by the linker driver.\n' \
89181f
		"$cfgtest_libs" >&3
89181f
	printf '%s\n' '------------------------' >&3
89181f
89181f
	cfgtest_epilog 'library' '(present)'
89181f
89181f
	return 0
89181f
}
89181f
89181f
975c3a
cfgtest_package_exists()
975c3a
{
975c3a
	# init
975c3a
	cfgtest_pkg=
975c3a
975c3a
	for cfgtest_arg in ${@}; do
975c3a
		case "$cfgtest_arg" in
975c3a
			-*)
975c3a
				;;
975c3a
975c3a
			*)
975c3a
				cfgtest_pkg="$cfgtest_arg"
975c3a
				;;
975c3a
		esac
975c3a
	done
975c3a
975c3a
	cfgtest_prolog 'package' "$cfgtest_pkg"
975c3a
975c3a
	# execute
975c3a
	"$mb_cfgtest_pkgconf" "${@}"                         \
975c3a
		> /dev/null 2>&3                              \
975c3a
	|| cfgtest_epilog 'package' '(missing)' "$cfgtest_pkg" \
975c3a
	|| return 1
975c3a
975c3a
	# result
975c3a
	printf 'cfgtest: package `%s'"'"' was found.\n' \
975c3a
		"$cfgtest_pkg" >&3
975c3a
	printf '%s\n' '------------------------' >&3
975c3a
975c3a
	cfgtest_epilog 'package' '(exists)' "$cfgtest_pkg"
975c3a
975c3a
	return 0
975c3a
}
975c3a
975c3a
975c3a
cfgtest_package_config()
975c3a
{
975c3a
	# init
975c3a
	if ! cfgtest_package_exists "${@}"; then
975c3a
		return 0
975c3a
	fi
975c3a
975c3a
	cfgtest_pkg=
975c3a
975c3a
	for cfgtest_arg in ${@}; do
975c3a
		case "$cfgtest_arg" in
975c3a
			-*)
975c3a
				;;
975c3a
975c3a
			*)
975c3a
				cfgtest_pkg="$cfgtest_arg"
975c3a
				;;
975c3a
		esac
975c3a
	done
975c3a
975c3a
	cfgtest_makevar_prefix=
975c3a
	cfgtest_pkgconf_prefix=
975c3a
975c3a
	if [ "$mb_cfgtest_cfgtype" = 'native' ]; then
975c3a
		cfgtest_makevar_prefix='_NATIVE'
975c3a
	else
975c3a
		if [ -n "${mb_sysroot}" ]; then
975c3a
			cfgtest_pkgconf_prefix="--define-variable=prefix=${mb_sysroot}"
975c3a
		fi
975c3a
	fi
975c3a
975c3a
	cfgtest_newline
975c3a
	cfgtest_comment 'package config:' "$cfgtest_pkg"
975c3a
975c3a
	# foo.pc
975c3a
	cfgtest_pkgconf_path=$("$mb_cfgtest_pkgconf" \
975c3a
			--path "${@}"                 \
975c3a
		2>/dev/null || true)
975c3a
975c3a
	if [ -z "$cfgtest_pkgconf_path" ]; then
975c3a
		cfgtest_pkgconf_path=$("$mb_cfgtest_pkgconf" \
975c3a
				--debug "${@}" 2>&1           \
975c3a
				| grep ".pc'$"                 \
975c3a
				| head -n1                      \
975c3a
			|| true)
975c3a
975c3a
		cfgtest_pkgconf_path="${cfgtest_pkgconf_path##* \'}"
975c3a
		cfgtest_pkgconf_path="${cfgtest_pkgconf_path%%\'}"
975c3a
	fi
975c3a
975c3a
	mb_cfgtest_makevar=$(printf '%s_PKGCONF_%s'             \
975c3a
			"$cfgtest_makevar_prefix" "$cfgtest_pkg" \
975c3a
		| tr '[[:lower:]]' '[[:upper:]]'                  \
975c3a
		| sed -e 's/-/_/g')
975c3a
975c3a
	cfgtest_makevar_set "$cfgtest_pkgconf_path"
975c3a
975c3a
	# --cflags
975c3a
	cfgtest_pkgconf_path=$("$mb_cfgtest_pkgconf" \
975c3a
			"$cfgtest_pkgconf_prefix"     \
975c3a
			--cflags "${@}"                \
975c3a
		| sed 's/[ \t]*$//')
975c3a
975c3a
	mb_cfgtest_makevar=$(printf '%s_CFLAGS_%s'              \
975c3a
			"$cfgtest_makevar_prefix" "$cfgtest_pkg" \
975c3a
		| tr '[[:lower:]]' '[[:upper:]]'                  \
975c3a
		| sed -e 's/-/_/g')
975c3a
975c3a
	cfgtest_makevar_set "$cfgtest_pkgconf_path"
975c3a
975c3a
	# --ldflags
975c3a
	cfgtest_pkgconf_path=$("$mb_cfgtest_pkgconf" \
975c3a
			"$cfgtest_pkgconf_prefix"     \
975c3a
			--libs "${@}"                  \
975c3a
		| sed 's/[ \t]*$//')
975c3a
975c3a
	mb_cfgtest_makevar=$(printf '%s_LDFLAGS_%s'             \
975c3a
			"$cfgtest_makevar_prefix" "$cfgtest_pkg" \
975c3a
		| tr '[[:lower:]]' '[[:upper:]]'                  \
975c3a
		| sed -e 's/-/_/g')
975c3a
975c3a
	cfgtest_makevar_set "$cfgtest_pkgconf_path"
975c3a
975c3a
	return 0
975c3a
}
975c3a
975c3a
13f85c
cfgtest_compiler_switch()
13f85c
{
13f85c
	# init
13f85c
	cfgtest_switches=
13f85c
	cfgtest_spc=
13f85c
e7f859
	for cfgtest_switch in $(printf '%s' "${@}"); do
13f85c
		cfgtest_switches="$cfgtest_switches$cfgtest_spc$cfgtest_switch"
13f85c
		cfgtest_spc=' '
13f85c
	done
13f85c
499ec7
	if [ -n "${cfgtest_switch_arg:-}" ]; then
499ec7
		cfgtest_prolog 'compiler switch' "${cfgtest_switches%=*}"
499ec7
499ec7
	elif [ "${1}" = "$cfgtest_switches" ]; then
13f85c
		cfgtest_prolog 'compiler switch' "$cfgtest_switches"
499ec7
13f85c
	else
13f85c
		cfgtest_prolog 'compiler switch combination' "$cfgtest_switches"
13f85c
	fi
13f85c
a629ba
	case "${1}" in
a629ba
		-Wl,*)
87fd63
			if [ "$mb_cfgtest_environment" = 'freestanding' ]; then
87fd63
				cfgtest_switches="$cfgtest_switches -nostdlib -nostartfiles"
87fd63
87fd63
				if [ -z "ccenv_cc_underscore" ]; then
87fd63
					cfgtest_code_snippet='int start(void){return 0;}'
87fd63
				else
87fd63
					cfgtest_code_snippet='int _start(void){return 0;}'
87fd63
				fi
87fd63
			else
87fd63
				cfgtest_code_snippet='int main(void){return 0;}'
87fd63
			fi
87fd63
a629ba
			cfgtest_common_init 'ldflag'
a629ba
			;;
a629ba
a629ba
		*)
a629ba
			cfgtest_code_snippet=
a629ba
			cfgtest_common_init 'switch'
a629ba
			;;
a629ba
	esac
13f85c
13f85c
	# execute
13f85c
	printf '%s' "$cfgtest_src"                  \
13f85c
		| eval $(printf '%s' "$cfgtest_cmd") \
13f85c
		> /dev/null 2>&3                      \
13f85c
	|| cfgtest_epilog 'switch' '(error)' "$@"      \
13f85c
	|| return 1
13f85c
13f85c
	# result
13f85c
	printf 'cfgtest: the switch `%s was accepted by the compier.\n' \
13f85c
		"$cfgtest_switches'" >&3
13f85c
	printf '%s\n' '------------------------' >&3
13f85c
13f85c
	cfgtest_epilog 'switch' '(accepted)'
13f85c
13f85c
	return 0
13f85c
}
13f85c
13f85c
499ec7
cfgtest_compiler_switch_arg()
499ec7
{
499ec7
	cfgtest_switch_arg='yes'
499ec7
499ec7
	if cfgtest_compiler_switch "${@}"; then
499ec7
		cfgtest_ret=0
499ec7
	else
499ec7
		cfgtest_ret=1
499ec7
	fi
499ec7
499ec7
	unset cfgtest_switch_arg
499ec7
499ec7
	return $cfgtest_ret
499ec7
}
499ec7
499ec7
89181f
cfgtest_unit_header_presence()
89181f
{
89181f
	cfgtest_internal_unit_test='unit_test'
89181f
	cfgtest_header_presence "$@" || return 1
89181f
	return 0
89181f
}
89181f
89181f
89181f
cfgtest_unit_header_absence()
89181f
{
89181f
	cfgtest_internal_unit_test='unit_test'
89181f
	cfgtest_header_absence "$@" || return 1
89181f
	return 0
89181f
}
89181f
89181f
89181f
cfgtest_unit_interface_presence()
89181f
{
89181f
	cfgtest_internal_unit_test='unit_test'
89181f
	cfgtest_interface_presence "$@" || return 1
89181f
	return 0
89181f
}
89181f
89181f
89181f
cfgtest_unit_decl_presence()
89181f
{
89181f
	cfgtest_internal_unit_test='unit_test'
89181f
	cfgtest_decl_presence "$@" || return 1
89181f
	return 0
89181f
}
89181f
89181f
89181f
cfgtest_unit_type_size()
89181f
{
89181f
	cfgtest_internal_unit_test='unit_test'
89181f
	cfgtest_type_size "$@" || return 1
89181f
	return 0
89181f
}