--- /dev/null
+diff -r -U2 pari-2.9.4.orig/config/Makefile.SH pari-2.9.4/config/Makefile.SH
+--- pari-2.9.4.orig/config/Makefile.SH 2017-11-09 16:26:14.000000000 +0700
++++ pari-2.9.4/config/Makefile.SH 2018-01-13 17:31:02.404210285 +0700
+@@ -80,10 +80,10 @@
+ graph=plotQt;;
+ Qt4)
+- PLOTCFLAGS='-D__FANCY_WIN__ -I$(QTDIR)/include'
+- PLOTLIBS="-L\$(QTDIR)/lib $QTLIB"
++ PLOTCFLAGS='-D__FANCY_WIN__ `pkg-config --cflags QtGui`'
++ PLOTLIBS="`pkg-config --libs QtGui`"
+ graph=plotQt4;;
+ fltk)
+- PLOTCFLAGS=
+- PLOTLIBS="$FLTK_LIBS"
++ PLOTCFLAGS="`fltk-config --cxxflags` $X11_INC"
++ PLOTLIBS="`fltk-config --ldflags`"
+ postconfig='fltk-config --post '
+ graph=plotfltk;;
+@@ -277,5 +277,5 @@
+ # Graphic library.
+ QTDIR = "$QTDIR"
+-MOC = \$(QTDIR)/bin/moc
++MOC = "`which moc`"
+ PLOTCFLAGS = $PLOTCFLAGS
+ PLOTLIBS = $PLOTLIBS
+diff -r -U2 pari-2.9.4.orig/config/get_Qt pari-2.9.4/config/get_Qt
+--- pari-2.9.4.orig/config/get_Qt 2017-05-12 16:45:12.000000000 +0700
++++ pari-2.9.4/config/get_Qt 2018-01-13 17:35:49.481198212 +0700
+@@ -6,5 +6,5 @@
+ yes)
+ pth="/usr/local/lib /usr/local/share /usr/lib /usr/share"
+- QTDIR=`locatedir qt4/bin $pth`
++ QTDIR=`locatedir qt4 $pth`
+ if test -n "$QTDIR"; then
+ QTLIB="-lQtCore -lQtGui"
+diff -r -U2 pari-2.9.4.orig/config/get_config_options pari-2.9.4/config/get_config_options
+--- pari-2.9.4.orig/config/get_config_options 2017-11-09 16:26:14.000000000 +0700
++++ pari-2.9.4/config/get_config_options 2018-01-13 17:38:39.264191072 +0700
+@@ -87,8 +87,10 @@
+ with_ncurses_lib=`echo "$1" | sed -e 's/[-a-z]*=//'` ;;
+
++ --without-qt|--with-qt=no) without_qt=yes ;;
+ --with-qt) with_qt=yes ;;
+ --with-qt=*)
+ with_qt=`echo "$1" | sed -e 's/[-a-z]*=//'` ;;
+
++ --without-fltk|--with-fltk=no) without_fltk=yes ;;
+ --with-fltk) with_fltk=yes ;;
+ --with-fltk=*)
+@@ -168,5 +170,7 @@
+
+ --with-qt[=DIR] use the Qt graphical library [prefix for Qt dir.]
++ --without-qt do not try to use the Qt lib
+ --with-fltk use the FLTK graphical library [need fltk-config]
++ --without-fltk do not try to use the FLTK lib
+
+ Miscellaneous
+diff -r -U2 pari-2.9.4.orig/config/get_graphic_lib pari-2.9.4/config/get_graphic_lib
+--- pari-2.9.4.orig/config/get_graphic_lib 2017-11-09 16:26:14.000000000 +0700
++++ pari-2.9.4/config/get_graphic_lib 2018-01-13 17:42:45.760180706 +0700
+@@ -8,4 +8,5 @@
+ if test -n "$with_fltk"; then which_graphic_lib=fltk; fi
+ if test -n "$with_qt"; then which_graphic_lib=Qt; fi
++if test -n "$without_fltk" -a -n "$without_qt"; then which_graphic_lib=none; fi
+ if test "$fastread" != yes; then
+ cat << EOT
--- /dev/null
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit eutils flag-o-matic toolchain-funcs multilib
+
+DESCRIPTION="Computer-aided number theory C library and tools"
+HOMEPAGE="http://pari.math.u-bordeaux.fr/"
+LICENSE="GPL-2"
+SLOT="0/5"
+KEYWORDS="~alpha ~amd64 ~arm ~hppa ~mips ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~x86-macos ~x86-solaris"
+IUSE="data doc fltk gmp qt4 X"
+SRC_URI="http://pari.math.u-bordeaux.fr/pub/${PN}/unix/${P}.tar.gz"
+
+RDEPEND="
+ sys-libs/readline:0=
+ data? ( sci-mathematics/pari-data )
+ doc? ( X? ( x11-misc/xdg-utils ) )
+ fltk? ( x11-libs/fltk:1= )
+ gmp? ( dev-libs/gmp:0= )
+ qt4? ( dev-qt/qtgui:4= )
+ X? ( x11-libs/libX11:0= )"
+DEPEND="${RDEPEND}
+ doc? ( virtual/latex-base )"
+
+get_compile_dir() {
+ pushd "${S}/config" > /dev/null
+ local fastread=yes
+ source ./get_archos
+ popd > /dev/null
+ echo "O${osname}-${arch}"
+}
+
+PATCHES=( "${FILESDIR}"/${P}-strip.patch
+ "${FILESDIR}"/${P}-ppc.patch
+ "${FILESDIR}"/${P}-no-automagic.patch
+ )
+
+src_prepare() {
+ default
+
+ # disable default building of docs during install
+ sed -i \
+ -e "s:install-doc install-examples:install-examples:" \
+ config/Makefile.SH || die "Failed to fix makefile"
+
+ # propagate ldflags
+ sed -i \
+ -e 's/$shared $extra/$shared $extra \\$(LDFLAGS)/' \
+ config/get_dlld || die "failed to fix LDFLAGS"
+ # move doc dir to a gentoo doc dir and replace acroread by xdg-open
+ sed -i \
+ -e "s:\$d = \$0:\$d = '${EPREFIX}/usr/share/doc/${PF}':" \
+ -e 's:"acroread":"xdg-open":' \
+ doc/gphelp.in || die "Failed to fix doc dir"
+}
+
+src_configure() {
+ tc-export CC
+ export CPLUSPLUS=$(tc-getCXX)
+
+ # need to force optimization here, as it breaks without
+ if is-flag -O0; then
+ replace-flags -O0 -O2
+ elif ! is-flag -O?; then
+ append-flags -O2
+ fi
+
+ # sysdatadir installs a pari.cfg stuff which is informative only
+ ./Configure \
+ --prefix="${EPREFIX}"/usr \
+ --datadir="${EPREFIX}"/usr/share/${PN} \
+ --libdir="${EPREFIX}"/usr/$(get_libdir) \
+ --sysdatadir="${EPREFIX}"/usr/share/doc/${PF} \
+ --mandir="${EPREFIX}"/usr/share/man/man1 \
+ --with-readline="${EPREFIX}"/usr \
+ --with-ncurses-lib="${EPREFIX}"/usr/$(get_libdir) \
+ $(use_with fltk) \
+ $(use_with gmp) \
+ $(use_with qt4 qt) \
+ || die "./Configure failed"
+}
+
+src_compile() {
+ use hppa && \
+ mymake=DLLD\="${EPREFIX}"/usr/bin/gcc\ DLLDFLAGS\=-shared\ -Wl,-soname=\$\(LIBPARI_SONAME\)\ -lm
+
+ mycxxmake=LD\=$(tc-getCXX)
+
+ local installdir=$(get_compile_dir)
+ cd "${installdir}" || die "failed to change directory"
+ # upstream set -fno-strict-aliasing.
+ # aliasing is a known issue on amd64, work on x86 by sheer luck
+ emake ${mymake} \
+ CFLAGS="${CFLAGS} -fno-strict-aliasing -DGCC_INLINE -fPIC" lib-dyn
+ emake ${mymake} ${mycxxmake} \
+ CFLAGS="${CFLAGS} -DGCC_INLINE" gp ../gp
+
+ if use doc; then
+ pushd "${S}" > /dev/null || die "failed to change directory"
+ VARTEXFONTS="${T}"/fonts emake -j1 docpdf
+ popd > /dev/null || die
+ fi
+}
+
+src_test() {
+ emake dobench
+}
+
+src_install() {
+ emake ${mymake} ${mycxxmake} DESTDIR="${D}" install
+ dodoc MACHINES COMPAT
+ if use doc; then
+ # install gphelp and the pdf documentations manually.
+ # the install-doc target is overkill.
+ dodoc doc/*.pdf
+ dobin doc/gphelp
+ insinto /usr/share/doc/${PF}
+ # gphelp looks for some of the tex sources...
+ doins doc/*.tex doc/translations
+ # Install the examples - for real.
+ emake EXDIR="${ED}/usr/share/doc/${PF}/examples" \
+ -C $(get_compile_dir) install-examples
+ fi
+}
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