--- /dev/null
+--- gprbuild-2017/gpr/gpr.gpr.old 2017-05-27 20:59:07.061135892 +0200
++++ gprbuild-2017/gpr/gpr.gpr 2017-05-27 20:59:38.022638398 +0200
+@@ -67,6 +67,7 @@
+ for Switches ("gpr*.ad?") use
+ Compiler'Default_Switches ("Ada") & ("-g1");
+ end case;
++ for Driver ("C") use External ("CC", "gcc");
+ end Compiler;
+
+ end GPR;
+--- gprbuild-17.0/src/gprbuild-post_compile.adb.old 2017-05-18 14:17:06.114797015 +0200
++++ gprbuild-17.0/src/gprbuild-post_compile.adb 2017-05-18 14:18:55.466956852 +0200
+@@ -4744,7 +4744,9 @@
+ No_Create => Proj.Is_Aggregated);
+ end if;
+
+- Shared_Libs := not Is_Static (Proj.Proj);
++ if not Is_Static (Proj.Proj) then
++ Shared_Libs := True;
++ end if;
+
+ end if;
+ end if;
--- /dev/null
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit toolchain-funcs multiprocessing
+
+MYP=${PN}-gpl-${PV}
+
+DESCRIPTION="Multi-Language Management"
+HOMEPAGE="http://libre.adacore.com/"
+SRC_URI="
+ http://mirrors.cdn.adacore.com/art/591c45e2c7a447af2deecff7
+ -> ${MYP}-src.tar.gz
+ bootstrap? (
+ http://mirrors.cdn.adacore.com/art/591aeb88c7a4473fcbb154f8
+ -> xmlada-gpl-${PV}-src.tar.gz )"
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="bootstrap +shared static static-pic"
+
+DEPEND="dev-lang/gnat-gpl:=
+ !bootstrap? ( dev-ada/xmlada[static] )"
+RDEPEND="${DEPEND}"
+
+S="${WORKDIR}"/${MYP}-src
+
+REQUIRED_USE="bootstrap? ( !shared !static !static-pic )"
+PATCHES=( "${FILESDIR}"/${P}-gentoo.patch )
+
+pkg_setup() {
+ if use bootstrap; then
+ GCC=${ADA:-$(tc-getCC)}
+ gnatbase=$(basename ${GCC})
+ gnatpath=$(dirname ${GCC})
+
+ GNATMAKE="${gnatbase/gcc/gnatmake}"
+ if [[ ${gnatpath} != "." ]] ; then
+ GNATMAKE="${gnatpath}/${GNATMAKE}"
+ fi
+
+ if [[ -z "$(type ${GNATMAKE} 2>/dev/null)" ]] ; then
+ eerror "You need a gcc compiler that provides the Ada Compiler:"
+ eerror "1) use gcc-config to select the right compiler or"
+ eerror "2) set ADA in make.conf"
+ die "ada compiler not available"
+ fi
+ fi
+}
+
+src_configure() {
+ emake prefix="${D}"usr setup
+}
+
+bin_progs="gprbuild gprconfig gprclean gprinstall gprname gprls"
+lib_progs="gprlib gprbind"
+
+src_compile() {
+ if use bootstrap; then
+ local xmlada_src="../xmlada-gpl-${PV}-src"
+ incflags="-Isrc -Igpr/src -I${xmlada_src}/sax -I${xmlada_src}/dom \
+ -I${xmlada_src}/schema -I${xmlada_src}/unicode \
+ -I${xmlada_src}/input_sources"
+ ${GCC} -c ${CFLAGS} gpr/src/gpr_imports.c -o gpr_imports.o || die
+ for bin in ${bin_progs}; do
+ ${GNATMAKE} -j$(makeopts_jobs) ${incflags} $ADAFLAGS ${bin}-main \
+ -o ${bin} -largs gpr_imports.o || die
+ done
+ for lib in $lib_progs; do
+ ${GNATMAKE} -j$(makeopts_jobs) ${incflags} ${lib} $ADAFLAGS \
+ -largs gpr_imports.o || die
+ done
+ else
+ gprbuild -p -m -j$(makeopts_jobs) -XBUILD=production -v \
+ gprbuild.gpr -XLIBRARY_TYPE=static -XXMLADA_BUILD=static \
+ -cargs:C ${CFLAGS} -cargs:Ada ${ADAFLAGS} || die
+ if use shared; then
+ gprbuild -p -m -j$(makeopts_jobs) -XBUILD=production -v \
+ -XLIBRARY_TYPE=relocatable -XXMLADA_BUILD=relocatable \
+ gpr/gpr.gpr -cargs:C ${CFLAGS} -cargs:Ada ${ADAFLAGS} || die
+ fi
+ for kind in static static-pic; do
+ if use ${kind}; then
+ gprbuild -p -m -j$(makeopts_jobs) -XBUILD=production -v \
+ -XLIBRARY_TYPE=${kind} -XXMLADA_BUILD=${kind} gpr/gpr.gpr \
+ -cargs:C ${CFLAGS} -cargs:Ada ${ADAFLAGS} || die
+ fi
+ done
+ fi
+}
+
+src_install() {
+ if use bootstrap; then
+ dobin ${bin_progs}
+ exeinto /usr/libexec/gprbuild
+ doexe ${lib_progs}
+ insinto /usr/share/gprconfig
+ doins share/gprconfig/*
+ insinto /usr/share/gpr
+ doins share/_default.gpr
+ else
+ default
+ for kind in shared static static-pic; do
+ if use ${kind}; then
+ emake DESTDIR="${D}" libgpr.install.${kind}
+ fi
+ done
+ rm "${D}"usr/doinstall || die
+ fi
+ einstalldocs
+}
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