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# Copyright 1999-2012 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/gnat.eclass,v 1.41 2011/12/27 17:55:12 fauli Exp $
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#
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# Author: George Shapovalov <george@gentoo.org>
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# Belongs to: ada herd <ada@gentoo.org>
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#
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# This eclass provides the framework for ada lib installation with the split and
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# SLOTted gnat compilers (gnat-xxx, gnatbuild.eclass). Each lib gets built once
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# for every installed gnat compiler. Activation of a particular bunary module is
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# performed by eselect-gnat, when the active compiler gets switched
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#
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# The ebuilds should define the lib_compile and lib_install functions that are
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# called from the (exported) gnat_src_compile function of eclass. These
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# functions should operate similarly to the starndard src_compile and
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# src_install. The only difference, that they should use $SL variable instead of
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# $S (this is where the working copy of source is held) and $DL instead of $D as
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# its installation point.
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inherit flag-o-matic eutils multilib
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# The environment is set locally in src_compile and src_install functions
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# by the common code sourced here and in gnat-eselect module.
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# This is the standard location for this code (belongs to eselect-gnat,
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# since eselect should work even in the absense of portage tree and we can
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# guarantee to some extent presence of gnat-eselect when anything gnat-related
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# gets processed. See #192505)
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#
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# Note!
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# It may not be safe to source this at top level. Only source inside local
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# functions!
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GnatCommon="/usr/share/gnat/lib/gnat-common.bash"
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# !!NOTE!!
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# src_install should not be exported!
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# Instead gnat_src_install should be explicitly called from within src_install.
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EXPORT_FUNCTIONS pkg_setup pkg_postinst src_compile
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DESCRIPTION="Common procedures for building Ada libs using split gnat compilers"
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# make sure we have an appropriately recent eselect-gnat installed, as we are
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# using some common code here.
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DEPEND=">=app-admin/eselect-gnat-1.3"
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# ----------------------------------
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# Globals
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# Lib install locations
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#
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# Gnat profile dependent files go under ${LibTop}/${Gnat_Profile}/${PN}
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# and common files go under SpecsDir, DataDir..
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# In order not to pollute PATH and LDPATH attempt should be mabe to install
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# binaries and what makes sence for individual packages under
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# ${AdalibLibTop}/${Gnat_Profile}/bin
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PREFIX=/usr
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AdalibSpecsDir=${PREFIX}/include/ada
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AdalibDataDir=${PREFIX}/share/ada
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AdalibLibTop=${PREFIX}/$(get_libdir)/ada
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# build-time locations
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# SL is a "localized" S, - location where sources are copied for
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#bi profile-specific build
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SL=${WORKDIR}/LocalSource
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# DL* are "localized destinations" where ARCH/SLOT dependent stuff should be
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# installed in lib_install. There are three:
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#
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DL=${WORKDIR}/LocalDest
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# a generic location for the lib (.a, .so) files
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#
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DLbin=${WORKDIR}/LocalBinDest
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# binaries that should be in the PATH, will be moved to common Ada bin dir
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#
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DLgpr=${WORKDIR}/LocalGPRDest
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# gpr's should go here.
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# file containing environment formed by gnat-eselect (build-time)
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BuildEnv=${WORKDIR}/BuildEnv
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# environment for installed lib. Profile-specific stuff should use %DL% as a top
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# of their location. This (%DL%) will be substituted with a proper location upon
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# install
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LibEnv=${WORKDIR}/LibEnv
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# env file prepared by gnat.eselect only lists new settings for env vars
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# we need to change that to prepend, rather than replace action..
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# Takes one argument - the file to expand. This file should contain only
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# var=value like lines.. (commenst are Ok)
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expand_BuildEnv() {
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local line
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for line in $(cat $1); do
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EnvVar=$(echo ${line}|cut -d"=" -f1)
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if [[ "${EnvVar}" == "PATH" ]] ; then
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echo "export ${line}:\${${EnvVar}}" >> $1.tmp
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else
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echo "export ${line}" >> $1.tmp
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fi
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done
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mv $1.tmp $1
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}
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# ------------------------------------
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# Dependency processing related stuff
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# A simple wrapper to get the relevant part of the DEPEND
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# params:
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# $1 - should contain dependency specification analogous to DEPEND,
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# if omitted, DEPEND is processed
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get_ada_dep() {
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[[ -z "$1" ]] && DEP="${DEPEND}" || DEP="$1"
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local TempStr
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for fn in $DEP; do # here $DEP should *not* be in ""
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[[ $fn =~ "virtual/ada" ]] && TempStr=${fn/*virtual\//}
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# above match should be to full virtual/ada, as simply "ada" is a common
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# part of ${PN}, even for some packages under dev-ada
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done
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# debug-print-function $FUNCNAME "TempStr=${TempStr:0:8}"
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[[ -n ${TempStr} ]] && echo ${TempStr:0:8}
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}
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# This function is used to check whether the requested gnat profile matches the
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# requested Ada standard
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# !!ATTN!!
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# This must match dependencies as specified in vitrual/ada !!!
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#
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# params:
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# $1 - the requested gnat profile in usual form (e.g. x86_64-pc-linux-gnu-gnat-gcc-4.1)
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# $2 - Ada standard specification, as would be specified in DEPEND.
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# Valid values: ada-1995, ada-2005, ada
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#
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# This used to treat ada-1995 and ada alike, but some packages (still
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# requested by users) no longer compile with new compilers (not the
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# standard issue, but rather compiler becoming stricter most of the time).
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# Plus there are some "intermediary versions", not fully 2005 compliant
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# but already causing problems. Therefore, now we do exact matching.
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belongs_to_standard() {
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# debug-print-function $FUNCNAME $*
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. ${GnatCommon} || die "failed to source gnat-common lib"
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local GnatSlot=$(get_gnat_SLOT $1)
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local ReducedSlot=${GnatSlot//\./}
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#
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if [[ $2 == 'ada' ]] ; then
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# debug-print-function "ada or ada-1995 match"
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return 0 # no restrictions imposed
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elif [[ "$2" == 'ada-1995' ]] ; then
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if [[ $(get_gnat_Pkg $1) == "gcc" ]]; then
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# debug-print-function "got gcc profile, GnatSlot=${ReducedSlot}"
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[[ ${ReducedSlot} -le "42" ]] && return 0 || return 1
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elif [[ $(get_gnat_Pkg $1) == "gpl" ]]; then
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# debug-print-function "got gpl profile, GnatSlot=${ReducedSlot}"
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[[ ${ReducedSlot} -lt "41" ]] && return 0 || return 1
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else
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return 1 # unknown compiler encountered
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fi
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elif [[ "$2" == 'ada-2005' ]] ; then
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if [[ $(get_gnat_Pkg $1) == "gcc" ]]; then
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# debug-print-function "got gcc profile, GnatSlot=${ReducedSlot}"
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[[ ${ReducedSlot} -ge "43" ]] && return 0 || return 1
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elif [[ $(get_gnat_Pkg $1) == "gpl" ]]; then
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# debug-print-function "got gpl profile, GnatSlot=${ReducedSlot}"
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[[ ${ReducedSlot} -ge "41" ]] && return 0 || return 1
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else
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return 1 # unknown compiler encountered
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fi
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else
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return 1 # unknown standard requested, check spelling!
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fi
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}
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# ------------------------------------
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# Helpers
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#
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# The purpose of this one is to remove all parts of the env entry specific to a
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# given lib. Usefull when some lib wants to act differently upon detecting
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# itself installed..
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#
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# params:
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# $1 - name of env var to process
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# $2 (opt) - name of the lib to filter out (defaults to ${PN})
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filter_env_var() {
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local entries=(${!1//:/ })
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local libName=${2:-${PN}}
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local env_str
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for entry in ${entries[@]} ; do
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# this simply checks if $libname is a substring of the $entry, should
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# work fine with all the present libs
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if [[ ${entry/${libName}/} == ${entry} ]] ; then
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env_str="${env_str}:${entry}"
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fi
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done
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echo ${env_str}
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}
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# A simpler helper, for the libs that need to extract active gnat location
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# Returns a first entry for a specified env var. Relies on the (presently true)
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# convention that first gnat's entries are listed and then of the other
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# installed libs.
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#
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# params:
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# $1 - name of env var to process
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get_gnat_value() {
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local entries=(${!1//:/ })
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echo ${entries[0]}
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}
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# Returns a name of active gnat profile. Performs some validity checks. No input
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# parameters, analyzes the system setup directly.
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get_active_profile() {
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# get common code and settings
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. ${GnatCommon} || die "failed to source gnat-common lib"
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local profiles=( $(get_env_list) )
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if [[ ${profiles[@]} == "${MARKER}*" ]]; then
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return
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# returning empty string
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fi
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if (( 1 == ${#profiles[@]} )); then
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local active=${profiles[0]#${MARKER}}
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else
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die "${ENVDIR} contains multiple gnat profiles, please cleanup!"
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fi
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if [[ -f ${SPECSDIR}/${active} ]]; then
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echo ${active}
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else
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die "The profile active in ${ENVDIR} does not correspond to any installed gnat!"
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fi
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}
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# ------------------------------------
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# Functions
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# Checks the gnat backend SLOT and filters flags correspondingly
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# To be called from scr_compile for each profile, before actual compilation
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# Parameters:
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# $1 - gnat profile, e.g. x86_64-pc-linux-gnu-gnat-gcc-3.4
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gnat_filter_flags() {
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debug-print-function $FUNCNAME $*
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# We only need to filter so severely if backends < 3.4 is detected, which
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# means basically gnat-3.15
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GnatProfile=$1
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if [ -z ${GnatProfile} ]; then
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# should not get here!
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die "please specify a valid gnat profile for flag stripping!"
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fi
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local GnatSLOT="${GnatProfile//*-/}"
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if [[ ${GnatSLOT} < 3.4 ]] ; then
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filter-mfpmath sse 387
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filter-flags -mmmx -msse -mfpmath -frename-registers \
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-fprefetch-loop-arrays -falign-functions=4 -falign-jumps=4 \
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-falign-loops=4 -msse2 -frerun-loop-opt -maltivec -mabi=altivec \
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-fsigned-char -fno-strict-aliasing -pipe
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export ADACFLAGS=${ADACFLAGS:-${CFLAGS}}
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export ADACFLAGS=${ADACFLAGS//-Os/-O2}
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export ADACFLAGS=${ADACFLAGS//pentium-mmx/i586}
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export ADACFLAGS=${ADACFLAGS//pentium[234]/i686}
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export ADACFLAGS=${ADACFLAGS//k6-[23]/k6}
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export ADACFLAGS=${ADACFLAGS//athlon-tbird/i686}
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export ADACFLAGS=${ADACFLAGS//athlon-4/i686}
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export ADACFLAGS=${ADACFLAGS//athlon-[xm]p/i686}
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# gcc-2.8.1 has no amd64 support, so the following two are safe
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export ADACFLAGS=${ADACFLAGS//athlon64/i686}
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export ADACFLAGS=${ADACFLAGS//athlon/i686}
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else
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export ADACFLAGS=${ADACFLAGS:-${CFLAGS}}
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fi
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export ADAMAKEFLAGS=${ADAMAKEFLAGS:-"-cargs ${ADACFLAGS} -margs"}
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export ADABINDFLAGS=${ADABINDFLAGS:-""}
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}
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gnat_pkg_setup() {
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debug-print-function $FUNCNAME $*
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# check whether all the primary compilers are installed
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. ${GnatCommon} || die "failed to source gnat-common lib"
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for fn in $(cat ${PRIMELIST}); do
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if [[ ! -f ${SPECSDIR}/${fn} ]]; then
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elog "The ${fn} Ada compiler profile is specified as primary, but is not installed."
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elog "Please rectify the situation before emerging Ada library!"
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elog "Please either install again all the missing compilers listed"
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elog "as primary, or edit /etc/ada/primary_compilers and update the"
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elog "list of primary compilers there."
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einfo ""
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ewarn "If you do the latter, please don't forget to rebuild all"
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ewarn "affected libs!"
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die "Primary compiler is missing"
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fi
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done
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export ADAC=${ADAC:-gnatgcc}
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export ADAMAKE=${ADAMAKE:-gnatmake}
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export ADABIND=${ADABIND:-gnatbind}
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}
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gnat_pkg_postinst() {
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einfo "Updating gnat configuration to pick up ${PN} library..."
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eselect gnat update
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elog "The environment has been set up to make gnat automatically find files"
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elog "for the installed library. In order to immediately activate these"
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elog "settings please run:"
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elog
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#elog "env-update"
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elog "source /etc/profile"
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einfo
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einfo "Otherwise the settings will become active next time you login"
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}
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# standard lib_compile plug. Adapted from base.eclass
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lib_compile() {
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debug-print-function $FUNCNAME $*
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[ -z "$1" ] && lib_compile all
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cd ${SL}
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while [ "$1" ]; do
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case $1 in
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configure)
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debug-print-section configure
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econf || die "died running econf, $FUNCNAME:configure"
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;;
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make)
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debug-print-section make
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emake || die "died running emake, $FUNCNAME:make"
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;;
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all)
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debug-print-section all
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lib_compile configure make
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;;
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esac
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shift
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done
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}
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# Cycles through installed gnat profiles and calls lib_compile and then
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# lib_install in turn.
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# Use this function to build/install profile-specific binaries. The code
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# building/installing common stuff (docs, etc) can go before/after, as needed,
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# so that it is called only once..
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#
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# lib_compile and lib_install are passed the active gnat profile name - may be used or
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# discarded as needed..
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gnat_src_compile() {
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debug-print-function $FUNCNAME $*
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# We source the eselect-gnat module and use its functions directly, instead of
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# duplicating code or trying to violate sandbox in some way..
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. ${GnatCommon} || die "failed to source gnat-common lib"
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compilers=( $(find_primary_compilers ) )
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if [[ -n ${compilers[@]} ]] ; then
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local i
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local AdaDep=$(get_ada_dep)
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for (( i = 0 ; i < ${#compilers[@]} ; i = i + 1 )) ; do
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if $(belongs_to_standard ${compilers[${i}]} ${AdaDep}); then
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einfo "compiling for gnat profile ${compilers[${i}]}"
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# copy sources
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mkdir "${DL}" "${DLbin}" "${DLgpr}"
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cp -dpR "${S}" "${SL}"
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# setup environment
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# As eselect-gnat also manages the libs, this will ensure the right
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# lib profiles are activated too (in case we depend on some Ada lib)
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generate_envFile ${compilers[${i}]} ${BuildEnv} && \
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expand_BuildEnv "${BuildEnv}" && \
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. "${BuildEnv}" || die "failed to switch to ${compilers[${i}]}"
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# many libs (notably xmlada and gtkada) do not like to see
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# themselves installed. Need to strip them from ADA_*_PATH
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# NOTE: this should not be done in pkg_setup, as we setup
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# environment right above
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export ADA_INCLUDE_PATH=$(filter_env_var ADA_INCLUDE_PATH)
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export ADA_OBJECTS_PATH=$(filter_env_var ADA_OBJECTS_PATH)
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# call compilation callback
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cd "${SL}"
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gnat_filter_flags ${compilers[${i}]}
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lib_compile ${compilers[${i}]} || die "failed compiling for ${compilers[${i}]}"
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# call install callback
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cd "${SL}"
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lib_install ${compilers[${i}]} || die "failed installing profile-specific part for ${compilers[${i}]}"
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# move installed and cleanup
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mv "${DL}" "${DL}-${compilers[${i}]}"
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mv "${DLbin}" "${DLbin}-${compilers[${i}]}"
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mv "${DLgpr}" "${DLgpr}-${compilers[${i}]}"
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rm -rf "${SL}"
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else
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einfo "skipping gnat profile ${compilers[${i}]}"
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fi
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done
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else
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ewarn "Please note!"
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elog "Treatment of installed Ada compilers has recently changed!"
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elog "Libs are now being built only for \"primary\" compilers."
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| 415 |
elog "Please list gnat profiles (as reported by \"eselect gnat list\")"
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elog "that you want to regularly use (i.e., not just for testing)"
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elog "in ${PRIMELIST}, one per line."
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die "please make sure you have at least one gnat compiler installed and set as primary!"
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fi
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}
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# This function simply moves gnat-profile-specific stuff into proper locations.
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| 424 |
# Use src_install in ebuild to install the rest of the package
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| 425 |
gnat_src_install() {
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| 426 |
debug-print-function $FUNCNAME $*
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| 427 |
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| 428 |
# prep lib specs directory
|
| 429 |
. ${GnatCommon} || die "failed to source gnat-common lib"
|
| 430 |
dodir ${SPECSDIR}/${PN}
|
| 431 |
|
| 432 |
compilers=( $(find_primary_compilers) )
|
| 433 |
if [[ -n ${compilers[@]} ]] ; then
|
| 434 |
local i
|
| 435 |
local AdaDep=$(get_ada_dep)
|
| 436 |
for (( i = 0 ; i < ${#compilers[@]} ; i = i + 1 )) ; do
|
| 437 |
if $(belongs_to_standard ${compilers[${i}]} ${AdaDep}); then
|
| 438 |
debug-print-section "installing for gnat profile ${compilers[${i}]}"
|
| 439 |
|
| 440 |
local DLlocation=${AdalibLibTop}/${compilers[${i}]}
|
| 441 |
dodir ${DLlocation}
|
| 442 |
cp -dpR "${DL}-${compilers[${i}]}" "${D}/${DLlocation}/${PN}"
|
| 443 |
cp -dpR "${DLbin}-${compilers[${i}]}" "${D}/${DLlocation}"/bin
|
| 444 |
cp -dpR "${DLgpr}-${compilers[${i}]}" "${D}/${DLlocation}"/gpr
|
| 445 |
# create profile-specific specs file
|
| 446 |
cp ${LibEnv} "${D}/${SPECSDIR}/${PN}/${compilers[${i}]}"
|
| 447 |
sed -i -e "s:%DL%:${DLlocation}/${PN}:g" "${D}/${SPECSDIR}/${PN}/${compilers[${i}]}"
|
| 448 |
sed -i -e "s:%DLbin%:${DLlocation}/bin:g" "${D}/${SPECSDIR}/${PN}/${compilers[${i}]}"
|
| 449 |
sed -i -e "s:%DLgpr%:${DLlocation}/gpr:g" "${D}/${SPECSDIR}/${PN}/${compilers[${i}]}"
|
| 450 |
else
|
| 451 |
einfo "skipping gnat profile ${compilers[${i}]}"
|
| 452 |
fi
|
| 453 |
done
|
| 454 |
else
|
| 455 |
die "please make sure you have at least one gnat compiler installed!"
|
| 456 |
fi
|
| 457 |
}
|
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