ifeq ($(subdir),libio)
ldbl-extra-routines += fwscanf \
		       fwprintf \
		       obprintf \
		       swscanf \
		       swprintf \
		       wscanf \
		       vasprintf \
		       vdprintf \
		       vscanf \
		       vsprintf \
		       vsnprintf \
		       vsscanf \
		       vswprintf \
		       vswscanf \
		       vwprintf \
		       vwscanf \
		       wprintf
endif

ifeq ($(subdir),wcsmbs)
ldbl-extra-routines += isoc99_fwscanf \
		       isoc99_swscanf \
		       isoc99_wscanf \
		       isoc99_vfwscanf \
		       isoc99_vswscanf \
		       isoc99_vwscanf

tests-internal += test-wcstold-ibm128 test-wcstold-ieee128
CFLAGS-test-wcstold-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-wcstold-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

$(objpfx)test-wcstold-ieee128: gnulib-tests += $(f128-loader-link)
endif

ifeq ($(subdir),stdio-common)
ldbl-extra-routines += printf_size \
		       asprintf \
		       dprintf \
		       fprintf \
		       printf \
		       snprintf \
		       sprintf \
		       vfprintf \
		       vprintf \
		       vfwprintf \
		       fscanf \
		       scanf \
		       sscanf \
		       vfscanf \
		       vfwscanf \
		       isoc99_fscanf \
		       isoc99_scanf \
		       isoc99_sscanf \
		       isoc99_vfscanf \
		       isoc99_vscanf \
		       isoc99_vsscanf

# Printing long double values with IEEE binary128 format reuses part
# of the internal float128 implementation (__printf_fp, __printf_fphex,
# and __float128 variables and union members).  Likewise, reading these
# values reuses __strtof128_internal.  Thus, the compilation of the
# following functions, must have -mfloat128 and -mabi=ibmlongdouble
# passed to the compiler.
CFLAGS-vfprintf-internal.c += -mfloat128 -mabi=ibmlongdouble
CFLAGS-vfwprintf-internal.c += -mfloat128 -mabi=ibmlongdouble
CFLAGS-vfscanf-internal.c += -mfloat128 -mabi=ibmlongdouble
CFLAGS-vfwscanf-internal.c += -mfloat128 -mabi=ibmlongdouble

# Basic tests for the implementation of long double with IEEE binary128
# format and for the related redirections in installed headers.
tests-internal += test-printf-ieee128 test-printf-ibm128
CFLAGS-test-printf-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-printf-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

tests-internal += test-wprintf-ieee128 test-wprintf-ibm128
CFLAGS-test-wprintf-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-wprintf-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

tests-internal += test-obstack-ieee128 test-obstack-ibm128
CFLAGS-test-obstack-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-obstack-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

tests-internal += test-obstack-chk-ieee128 test-obstack-chk-ibm128
CFLAGS-test-obstack-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-obstack-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

tests-internal += test-scanf-ieee128 test-scanf-ibm128
CFLAGS-test-scanf-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi -std=c89 -D_GNU_SOURCE
CFLAGS-test-scanf-ibm128.c += -mabi=ibmlongdouble -Wno-psabi -std=c89 -D_GNU_SOURCE

$(objpfx)test-scanf-ieee128: gnulib-tests += $(f128-loader-link)

tests-internal += test-wscanf-ieee128 test-wscanf-ibm128
CFLAGS-test-wscanf-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi -std=c89 -D_GNU_SOURCE
CFLAGS-test-wscanf-ibm128.c += -mabi=ibmlongdouble -Wno-psabi -std=c89 -D_GNU_SOURCE

$(objpfx)test-wscanf-ieee128: gnulib-tests += $(f128-loader-link)

tests-internal += test-isoc99-scanf-ieee128 test-isoc99-scanf-ibm128
CFLAGS-test-isoc99-scanf-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi -std=c99
CFLAGS-test-isoc99-scanf-ibm128.c += -mabi=ibmlongdouble -Wno-psabi -std=c99

$(objpfx)test-isoc99-scanf-ieee128: gnulib-tests += $(f128-loader-link)

tests-internal += test-isoc99-wscanf-ieee128 test-isoc99-wscanf-ibm128
CFLAGS-test-isoc99-wscanf-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi -std=c99
CFLAGS-test-isoc99-wscanf-ibm128.c += -mabi=ibmlongdouble -Wno-psabi -std=c99

$(objpfx)test-isoc99-wscanf-ieee128: gnulib-tests += $(f128-loader-link)

ifeq ($(run-built-tests),yes)
tests-special += $(objpfx)test-scanf-ieee128.out
tests-special += $(objpfx)test-scanf-ibm128.out

tests-special += $(objpfx)test-wscanf-ieee128.out
tests-special += $(objpfx)test-wscanf-ibm128.out

tests-special += $(objpfx)test-isoc99-scanf-ieee128.out
tests-special += $(objpfx)test-isoc99-scanf-ibm128.out

tests-special += $(objpfx)test-isoc99-wscanf-ieee128.out
tests-special += $(objpfx)test-isoc99-wscanf-ibm128.out
endif

$(objpfx)test-scanf-ieee128.out: \
  ../sysdeps/ieee754/ldbl-128ibm-compat/test-scanf-ldbl-compat.sh \
  $(objpfx)test-scanf-ieee128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

$(objpfx)test-scanf-ibm128.out: \
  ../sysdeps/ieee754/ldbl-128ibm-compat/test-scanf-ldbl-compat.sh \
  $(objpfx)test-scanf-ibm128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

$(objpfx)test-wscanf-ieee128.out: \
  ../sysdeps/ieee754/ldbl-128ibm-compat/test-scanf-ldbl-compat.sh \
  $(objpfx)test-wscanf-ieee128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

$(objpfx)test-wscanf-ibm128.out: \
  ../sysdeps/ieee754/ldbl-128ibm-compat/test-scanf-ldbl-compat.sh \
  $(objpfx)test-wscanf-ibm128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

$(objpfx)test-isoc99-scanf-ieee128.out: \
  ../sysdeps/ieee754/ldbl-128ibm-compat/test-scanf-ldbl-compat.sh \
  $(objpfx)test-isoc99-scanf-ieee128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

$(objpfx)test-isoc99-scanf-ibm128.out: \
  ../sysdeps/ieee754/ldbl-128ibm-compat/test-scanf-ldbl-compat.sh \
  $(objpfx)test-isoc99-scanf-ibm128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

$(objpfx)test-isoc99-wscanf-ieee128.out: \
  ../sysdeps/ieee754/ldbl-128ibm-compat/test-scanf-ldbl-compat.sh \
  $(objpfx)test-isoc99-wscanf-ieee128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

$(objpfx)test-isoc99-wscanf-ibm128.out: \
  ../sysdeps/ieee754/ldbl-128ibm-compat/test-scanf-ldbl-compat.sh \
  $(objpfx)test-isoc99-wscanf-ibm128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

tests-internal += test-printf-size-ieee128 test-printf-size-ibm128
CFLAGS-test-printf-size-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-printf-size-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

ifeq ($(run-built-tests),yes)
tests-special += $(objpfx)test-printf-size-ieee128.out
tests-special += $(objpfx)test-printf-size-ibm128.out
endif

$(objpfx)test-printf-size-ieee128.out: \
  tst-printfsz-islongdouble.sh $(objpfx)test-printf-size-ieee128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)

$(objpfx)test-printf-size-ibm128.out: \
  tst-printfsz-islongdouble.sh $(objpfx)test-printf-size-ibm128
	$(SHELL) $^ '$(test-program-prefix)' $@; \
	$(evaluate-test)
endif

ifeq ($(subdir),debug)
ldbl-extra-routines += asprintf_chk \
		       dprintf_chk \
		       fprintf_chk \
		       printf_chk \
		       snprintf_chk \
		       sprintf_chk \
		       vasprintf_chk \
		       vdprintf_chk \
		       vfprintf_chk \
		       vprintf_chk \
		       vsnprintf_chk \
		       vsprintf_chk \
		       fwprintf_chk \
		       swprintf_chk \
		       wprintf_chk \
		       vfwprintf_chk \
		       vswprintf_chk \
		       vwprintf_chk \
		       obstack_chk \
		       vobstack_chk

tests-internal += test-printf-chk-ieee128 test-printf-chk-ibm128
CFLAGS-test-printf-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-printf-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

tests-internal += test-printf-chk-redir-ieee128 test-printf-chk-redir-ibm128
CFLAGS-test-printf-chk-redir-ieee128.c += -mfloat128 -mabi=ieeelongdouble \
					  -Wno-psabi -Wno-unused-result
CFLAGS-test-printf-chk-redir-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
					 -Wno-unused-result

tests-internal += test-wprintf-chk-ieee128 test-wprintf-chk-ibm128
CFLAGS-test-wprintf-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-wprintf-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

tests-internal += test-wprintf-chk-redir-ieee128 test-wprintf-chk-redir-ibm128
CFLAGS-test-wprintf-chk-redir-ieee128.c += -mfloat128 -mabi=ieeelongdouble \
					   -Wno-psabi -Wno-unused-result
CFLAGS-test-wprintf-chk-redir-ibm128.c += -mabi=ibmlongdouble -Wno-psabi \
					  -Wno-unused-result
endif

ifeq ($(subdir),argp)
ldbl-extra-routines += argp-help

$(objpfx)tst-ieee128-argp.c: tst-ldbl-argp.c
	cp $< $@

$(objpfx)tst-ibm128-argp.c: tst-ldbl-argp.c
	cp $< $@

tests-internal += tst-ieee128-argp tst-ibm128-argp
CFLAGS-tst-ieee128-argp.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-tst-ibm128-argp.c += -mabi=ibmlongdouble -Wno-psabi
endif

ifeq ($(subdir),misc)
ldbl-extra-routines += err \
		       error \
		       syslog \
		       qefgcvt \
		       qefgcvt_r

CFLAGS-ieee128-qefgcvt.c += -mabi=ieeelongdouble -Wno-psabi -mno-gnu-attribute
CFLAGS-ieee128-qefgcvt_r.c += -mabi=ieeelongdouble -Wno-psabi -mno-gnu-attribute

# Remove -mlong-double-128 because it does not work correctly with
# -mabi=ibmlongdoule in some GCC versions, e.g. GCC 7.
$(foreach o,$(all-object-suffixes),$(objpfx)ieee128-qefgcvt$(o)): \
  sysdep-CFLAGS := $(filter-out -mlong-double-128, $(sysdep-CFLAGS))
$(foreach o,$(all-object-suffixes),$(objpfx)ieee128-qefgcvt_r$(o)): \
  sysdep-CFLAGS := $(filter-out -mlong-double-128, $(sysdep-CFLAGS))

tests-internal += tst-ibm128-warn tst-ieee128-warn
tests-internal += tst-ibm128-error tst-ieee128-error
tests-internal += tst-ibm128-efgcvt tst-ieee128-efgcvt

$(objpfx)tst-ieee128-efgcvt: gnulib-tests += $(f128-loader-link)
$(objpfx)tst-ldbl-efgcvt: gnulib-tests += $(f128-loader-link)

$(objpfx)tst-ibm128-%.c: tst-ldbl-%.c
	cp $< $@

$(objpfx)tst-ieee128-%.c: tst-ldbl-%.c
	cp $< $@

CFLAGS-tst-ibm128-warn.c += -mabi=ibmlongdouble -Wno-psabi
CFLAGS-tst-ibm128-error.c += -mabi=ibmlongdouble -Wno-psabi
CFLAGS-tst-ibm128-efgcvt.c += -mabi=ibmlongdouble -Wno-psabi

CFLAGS-tst-ieee128-warn.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-tst-ieee128-error.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-tst-ieee128-efgcvt.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi

tests-container += test-syslog-ieee128 test-syslog-ibm128
CFLAGS-test-syslog-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-syslog-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

tests-container += test-syslog-chk-ieee128 test-syslog-chk-ibm128
CFLAGS-test-syslog-chk-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-syslog-chk-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
endif

ifeq ($(subdir),stdlib)
ldbl-extra-routines += strfmon strfmon_l

# Printing long double values with IEEE binary128 format reuses part
# of the internal float128 implementation (__printf_fp, __printf_fphex,
# and __float128 variables and union members).  Thus, the compilation of
# the following files, must have -mfloat128 passed to the compiler.
# Also, guarantee that they are compiled in IBM long double mode.
CFLAGS-strfmon.c += -mfloat128 -mabi=ibmlongdouble
CFLAGS-strfmon_l.c += -mfloat128 -mabi=ibmlongdouble

tests-internal += test-strfmon-ibm128 test-strfmon-ieee128
CFLAGS-test-strfmon-ibm128.c += -mabi=ibmlongdouble -Wno-psabi
CFLAGS-test-strfmon-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
$(objpfx)tst-strfmon-ibm128.out: $(gen-locales)
$(objpfx)tst-strfmon-ieee128.out: $(gen-locales)

tests-internal += test-strfrom-ibm128 test-strfrom-ieee128
CFLAGS-test-strfrom-ieee128.c += -mfloat128 -mabi=ieeelongdouble -Wno-psabi
CFLAGS-test-strfrom-ibm128.c += -mabi=ibmlongdouble -Wno-psabi

$(objpfx)test-strfrom-ieee128: gnulib-tests += $(f128-loader-link)
endif

ifeq ($(subdir),math)
# The totalorder{,mag} compatibility tests were added prior to this
# support.  Thus, they can only correctly be used with ibm128.
CFLAGS-test-ldouble-compat_totalorder.c += -mabi=ibmlongdouble
CFLAGS-test-ldouble-compat_totalordermag.c += -mabi=ibmlongdouble
endif

# Add IEEE binary128 files as make targets.
routines += $(foreach r,$(ldbl-extra-routines),ieee128-$(r))

# On powerpc64le, the routines responsible for converting between long
# double and string (e.g.: printf, scanf, strtold, strfroml) default to
# IBM long double mode.  When support for TS 18661-3 was added, several
# internal functions were modified so that they could also handle
# floating-point variables with IEEE binary128 format, but as an
# additional type, _Float128.
#
# The following rule ensures that the string conversion routines will
# always be built in IBM long double mode, with additional support for
# IEEE binary128, through the use of -mabi=ibmlongdouble and -mfloat128.
ldbl-ibm128-files := $(objpfx)test-%-ibm128^ \
		     $(objpfx)iovdprintf^ \
		     $(objpfx)iovsprintf^ \
		     $(objpfx)iovsscanf^ \
		     $(objpfx)iovswscanf^ \
		     $(objpfx)iovfscanf^ \
		     $(objpfx)iovfwscanf^ \
		     $(objpfx)mpn2ldbl^ \
		     $(objpfx)ldbl2mpn^ \
		     $(objpfx)strtold_nan^ \
		     $(objpfx)strtold_l^ \
		     $(objpfx)strtold^ \
		     $(objpfx)strfroml^ \
		     $(objpfx)wcstold_nan^ \
		     $(objpfx)wcstold_l^ \
		     $(objpfx)wcstold^ \
		     $(objpfx)printf_fphex^ \
		     $(objpfx)printf_fp^ \
		     $(foreach r,$(ldbl-extra-routines),$(objpfx)$(r)^) \
		     $(foreach r,$(ldbl-extra-routines),$(objpfx)$(r)-internal^)
obj-suf-foreach = $(foreach suf,$(all-object-suffixes),$(subst ^,$(suf),$(1)))

# Remove -mlong-double-128 because it does not work correctly with
# -mabi=ibmlongdoule in some GCC versions, e.g. GCC 7.
$(call obj-suf-foreach,$(ldbl-ibm128-files)): \
  sysdep-CFLAGS := $(filter-out -mlong-double-128, $(sysdep-CFLAGS))

# Explicitly add -mabi=ibm-long-double to required files.
$(call obj-suf-foreach,$(ldbl-ibm128-files)): \
  sysdep-CFLAGS += -mabi=ibmlongdouble