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# Support code that may be used in debian/rules
# Alastair McKinstry <mckinstry@debian.org>
# 2025-06-13
include /usr/share/dpkg/buildflags.mk
include /usr/share/dpkg/architecture.mk
# WARNING: THIS CODE IS EXPERIMENTAL AND IN HIGH FLUX
# This will set:
# FC_DEFAULT : the default compiler flavor
# FC_OPTIONAL : a space seperated list of compiler flavors present except FC_DEFAULT
# FC_DEFAULT is /etc/alternatives/f95 unless FC is specified in the environment
# FC flavors: shortnames for Fortran compilers, currently in Trixie:
# gfortran flang flangext lfortran flang18 flangext18 flang19 flangext19
# FC=f77 as a default in Make. The fortran-support.mk sets FC_DEFAULT as a proper compiler flavor
# but get_fmoddir(f77) not properly defined, so don't call with FC=f77
# as a hack, f77 is presumed to be gfortran
ifeq ($(origin F77),default)
F77:=$(shell basename $(shell readlink /etc/alternatives/f77))
endif
ifeq ($(origin FC),environment)
FC_DEFAULT:=$(FC)
# FC_DEFAULT:=$(call get_fc_flavor,$(FC))
endif
ifeq ($(origin FC),default)
FC_DEFAULT:=$(FC)
#FC_DEFAULT:=$(call get_fc_flavor,$(shell basename $(shell readlink /etc/alternatives/f95)))
endif
FC_COMPILERS:= $(if $(wildcard /usr/bin/gfortran-13), gfortran13 , ) \
$(if $(wildcard /usr/bin/gfortran-14), gfortran14 , ) \
$(if $(wildcard /usr/bin/gfortran-15), gfortran15 , ) \
$(if $(wildcard /usr/bin/flang-new-17), flang17 , ) \
$(if $(wildcard /usr/bin/flang-new-18), flang18 , ) \
$(if $(wildcard /usr/bin/flang-new-19), flang19 , ) \
$(if $(wildcard /usr/bin/flang-new-20), flang20 , ) \
$(if $(wildcard /usr/bin/flang-17), flang17 , ) \
$(if $(wildcard /usr/bin/flang-18), flang18 , ) \
$(if $(wildcard /usr/bin/flang-19), flang19 , ) \
$(if $(wildcard /usr/bin/flang-20), flang20 , ) \
$(if $(wildcard /usr/bin/flang-to-external-fc-17), flangext17 , ) \
$(if $(wildcard /usr/bin/flang-to-external-fc-18), flangext18 , ) \
$(if $(wildcard /usr/bin/lfortran), lfortran, )
FC_OPTIONAL:=$(filter-out $(FC_DEFAULT),$(shell echo $(FC_COMPILERS) | sed -e 's% %\n%g' | sort | uniq | xargs echo))
# Functions: take flavor as parameter
# get_fmoddir:
# return the Module(s)directory usable by this flavour
# TODO: This should strip arch from eg aarch64-linux-gnu-gfortran-14
_ARCH:=$(shell echo $(FC)| sed -r 's%(.*)-(.*)%\1 %' )
_SUFF:=$(shell echo $(FC)| sed -r 's%(.*)-(.*)%\2 %' )
ifeq ($(_ARCH),$(_SUFF))
_ARCH:=${DEB_HOST_MULTIARCH}
else
FC:=$(_SUFF)
endif
fort_root = /usr/lib/$(strip $(_ARCH))/fortran
# Currently gfortran defaults to gfortran-14, flang to flang-19
# Install in this directory
get_fmoddir = $(strip \
$(if $(filter $1, f77), $(fort_root)/gfortran-mod-16, \
$(if $(filter $1,gfortran), $(fort_root)/gfortran-mod-16, \
$(if $(filter $1,gfortran14), $(fort_root)/gfortran-mod-15, \
$(if $(filter $1,gfortran15), $(fort_root)/gfortran-mod-16, \
$(if $(filter $1, flang), $(fort_root)/flang-mod-19, \
$(if $(filter $1, flang17), $(fort_root)/flang-mod-17, \
$(if $(filter $1, flang18), $(fort_root)/flang-mod-18, \
$(if $(filter $1, flang19), $(fort_root)/flang-mod-19, \
$(if $(filter $1, flang20), $(fort_root)/flang-mod-20, \
$(if $(filter $1, flangext), $(fort_root)/flangext-mod-18, \
$(if $(filter $1, flangext17), $(fort_root)/flangext-mod-17, \
$(if $(filter $1, flangext18), $(fort_root)/flangext-mod-18, \
$(if $(filter $1, lfortran), $(fort_root)/lfortran-mod-0, \
$(fort_root)/$1 ))))))))))))))
# Compatible modules for include search. Directories may not be present
get_fmoddirs = $(if $(filter $1,gfortran), -I$(call fort_root,$1)/gfortran-mod-15 -I$(call fort_root,$1)/flangext-mod-15, \
$(if $(filter $1,f77), -I$(call fort_root,$1)/gfortran-mod-15 -I$(call fort_root,$1)/flangext-mod-15, \
$(if $(filter $1,gfortran14), -I$(call fort_root,$1)/gfortran-mod-15 -I$(call fort_root,$1)/flangext-mod-15, \
$(if $(filter $1,gfortran15), -I$(call fort_root,$1)/gfortran-mod-15 -I$(call fort_root,$1)/flangext-mod-16, \
$(if $(filter $1, flang), -I$(call fort_root,$1)/flang-mod-19, \
$(if $(filter $1, flang17), -I$(call fort_root,$1)/flang-mod-17, \
$(if $(filter $1, flang18), -I$(call fort_root,$1)/flang-mod-18, \
$(if $(filter $1, flang19), -I$(call fort_root,$1)/flang-mod-19, \
$(if $(filter $1, flang20), -I$(call fort_root,$1)/flang-mod-20, \
$(if $(filter $1, flangext), -I$(call fort_root,$1)/flangext-mod-18 -I$(call fort_root,$1)/gfortran-mod-15, \
$(if $(filter $1, flangext18), -I$(call fort_root,$1)/flangext-mod-15 -I$(call fort_root,$1)/gfortran-mod-15, \
$(if $(filter $1, lfortran), -I$(call fort_root,$1)/lfortran-mod-0, \
-I$(call fort_root,$1)/$1 ))))))))))))
# get_fc_exe
# Compiler name, suitable for -DCMAKE_Fortran_COMPILER=$(call get_fc_exe,XXX)
get_fc_exe = $(strip \
$(if $(filter $1,gfortran), /usr/bin/gfortran-14, \
$(if $(filter $1,gfortran15), /usr/bin/gfortran-15, \
$(if $(filter $1,gfortran14), /usr/bin/gfortran-14, \
$(if $(filter $1,gfortran13), /usr/bin/gfortran-13, \
$(if $(filter $1,flang), /usr/bin/flang-new-17, \
$(if $(filter $1,flang18), /usr/bin/flang-new-18, \
$(if $(filter $1,flang19), /usr/bin/flang-new-19, \
$(if $(filter $1,flang20), /usr/bin/flang-new-20, \
$(if $(filter $1,flangext), /usr/bin/flang-to-external-fc-17, \
$(if $(filter $1,flangext18), /usr/bin/flang-to-external-fc-18, \
$(if $(filter $1,lfortran), /usr/bin/lfortran, \
/usr/bin/$(FC_DEFAULT) ))))))))))))
# TODO get_fc_flavor = $(if $(filter $(shell $1,/usr/bin//usr/bin/gfortran), gfortran, FALSE)
_to_label=$(shell echo "$1" | sed -e 's/\(.*\)/\U\1/' -e 's/\-//')
_to_vendor=$(shell echo "$1" | sed -e 's/[0-9\-].*//' )
get_flibdir=$(if $(filter $1,f77), $(call fort_root,$1)/fortran/gfortran, \
$(call fort_root,$1)/fortran/$(strip $(call _to_vendor, $1)))
# Compatible directories for library search. Directories may not be present
get_flibdirs = $(if $(filter $1,gfortran), -L$(call fort_root,$1)/gfortran -L$(call fort_root,$1)/flangext, \
$(if $(filter $1,f77), -L$(call fort_root,$1)/gfortran -L$(call fort_root,$1)/flangext, \
$(if $(filter $1,flang), -L$(call fort_root,$1)/flang, \
$(if $(filter $1,flang18), -L$(call fort_root,$1)/flang, \
$(if $(filter $1,flang19), -L$(call fort_root,$1)/flang, \
$(if $(filter $1,flang20), -L$(call fort_root,$1)/flang, \
$(if $(filter $1,flangext), -L$(call fort_root,$1)/flangext -L$(call fort_root,$1)/gfortran, \
$(if $(filter $1,flangext18), -L$(call fort_root,$1)/flangext18 -L$(call fort_root,$1)/gfortran, \
$(if $(filter $1,lfortran), -L$(call fort_root,$1)/lfortran, \
-L$(call fort_root,$1)/$1 )))))))))
get_fc_vendor = $(strip \
$(if $(filter $1,f77), gfortran , \
$(if $(filter $1,gfortran), gfortran ,\
$(if $(filter $1,gfortran13), gfortran ,\
$(if $(filter $1,gfortran14), gfortran ,\
$(if $(filter $1,gfortran15), gfortran ,\
$(if $(filter $1,flang), flang ,\
$(if $(filter $1,flang17), flang ,\
$(if $(filter $1,flang18), flang ,\
$(if $(filter $1,flang19), flang ,\
$(if $(filter $1,flang20), flang ,\
$(if $(filter $1,flangext18), gfortran, \
$(if $(filter $1,lfortran), lfortran )))))))))))))
# Compiler-specific fixes to FCFLAGS
# See #957692
FCLAGS_ADD_GFORTRAN10:= -fallow-invalid-boz -fallow-argument-mismatch
FCLAGS_ADD_GFORTRAN11:= -fallow-invalid-boz -fallow-argument-mismatch
FCLAGS_ADD_GFORTRAN12:= -fallow-invalid-boz -fallow-argument-mismatch
FCLAGS_ADD_GFORTRAN13:= -fallow-invalid-boz -fallow-argument-mismatch
FCLAGS_ADD_GFORTRAN14:= -fallow-invalid-boz -fallow-argument-mismatch
FCLAGS_ADD_GFORTRAN15:= -fallow-invalid-boz -fallow-argument-mismatch
FCFLAGS_STRIP_FLANG7:= -g
FCFLAGS_STRIP_FLANG18:= -mbranch-protection=standard -fstack-protector-strong -fstack-clash-protection -ffile-prefix-map%
FCFLAGS_STRIP_FLANG19:= -mbranch-protection=standard -fstack-protector-strong -fstack-clash-protection -ffile-prefix-map%
FCFLAGS_STRIP_FLANG20:= -mbranch-protection=standard -fstack-protector-strong -fstack-clash-protection -ffile-prefix-map%
FCFLAGS_ADD_gfortran:= $(FCLAGS_ADD_GFORTRAN13)
FCFLAGS_ADD_flangext:= $(FCLAGS_ADD_GFORTRAN13)
FCFLAGS_STRIP_flang:= $(FCFLAGS_STRIP_FLANG17)
define get_fcflags =
$(filter-out $(FCFLAGS_STRIP_$(call _to_label,$1)),$(FCFLAGS)) $(FCFLAGS_ADD_$(call _to_label,$1))
endef
### Support code for configure/build.
### Assuming dh_X_fortran_TEMPLATE is defined, use that to build / configure
### Must succeed on FC_DEFAULT, may fail on FC_OPTIONAL compilers
### (for capturing details in logs )
# Potentially add others if $FC is set (eg ifx, Arm)
# TODO: improve on "-f debian/rules"
define dh_fortran_RECURSE =
dh_$(1)_fortran_$(2)_nofail:
@echo DEBUGF RECURSE into dh_$(1)_fortran_$(2)
@($(MAKE) -f debian/rules dh_$(1)_fortran_$(2) || echo " FAILURE IGNORED")
@echo DEBUGF LEAVING dh_$(1)_fortran_$(2)_nofail
endef
# This will iterate over targets and recursively call make but to always succeed
define foreach_fc_dot =
$(foreach f, $(FC_DEFAULT) $(FC_OPTIONAL), $(eval $(call dh_$(1)_fortran_TEMPLATE,$(f))))
$(foreach f, $(FC_OPTIONAL) , $(eval $(call dh_fortran_RECURSE,$(1),$(f))))
endef
define foreach_fc_execute_before =
$(eval $(call foreach_fc_dot,$(1)))
execute_before_dh_auto_$(1): $(foreach FC_FLAVOR, $(FC_DEFAULT), dh_$(1)_fortran_$(FC_FLAVOR)) $(foreach FC_FLAVOR, $(FC_OPTIONAL), dh_$(1)_fortran_$(FC_FLAVOR)_nofail)
endef
define foreach_fc_execute_after =
$(eval $(call foreach_fc_dot,$(1)))
execute_after_dh_auto_$(1): $(foreach FC_FLAVOR, $(FC_DEFAULT), dh_$(1)_fortran_$(FC_FLAVOR)) $(foreach FC_FLAVOR, $(FC_OPTIONAL), dh_$(1)_fortran_$(FC_FLAVOR)_nofail)
endef
define dh_clean_fortran_TEMPLATE =
dh_clean_fortran_$(1):
rm -rf $(BUILDDIR)-$(1) $(DESTDIR)-$(1)
endef
# $(eval $(call foreach_fc_execute_before,clean))
define dh_build_fortran_TEMPLATE =
dh_build_fortran_$(1):
dh_auto_build --builddirectory=${BUILDDIR}-$(1)
endef
# $(eval $(call foreach_fc_execute_before,build))
# Default. TODO: This works for cmake. Produce other version?
define dh_configure_fortran_TEMPLATE =
dh_configure_fortran_$(1):
dh_auto_configure --builddirectory=debian/build-$(1) -- \
${BUILD_FLAGS} -DCMAKE_Fortran_COMPILER=$(call get_fc_exe, $(1)) \
-DCMAKE_Fortran_FLAGS="$(call get_fcflags,$(1))"
endef
define dh_test_fortran_TEMPLATE =
dh_test_fortran_$(1):
ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS)))
(LD_LIBRARY_PATH=$(BUILDDIR)-$(1)/lib dh_auto_test --builddirectory=$(BUILDDIR)-$(1) || true)
endif
endef
|
