# llvmgcc20/cfg - "Build" settings for package

#---------------------------------------------------------------------

[technotes]

1. The source tarball used by this package was created  based on "git"
upstream sources. The sources were obtained as follows:

      ocgitfetch --run \
--checkout=llvmorg-20.1.0 \
--deletegit \
https://github.com/llvm/llvm-project.git

#---------------------------------------------------------------------

2. If you'd like to build this package on a 32-bit system -- as oppos-
ed to  cross-compiling it for  the same system -- you'll probably need
to set up a large amount of swap space, 16GB or more, or the build may
lock up the system.

#---------------------------------------------------------------------

3. This package  builds "clang" and "clang++" compilers that work well
enough to build the parts of "xorg" and  most other packages  that re-
quire "clang*".

The compilers are built using  "gcc"  and linked against "gcc" librar-
ies, so they aren't self-hosted.

#---------------------------------------------------------------------

[buildtimes]

#---------------------------------------------------------------------

[settings]
altpkg     = yes
configure  = none
license    = See "license*.txt" in installed tree
licfile    = llvm/LICENSE.TXT
nosyslinks = yes
purge      = yes
unpack     = relaxed

setpaths   = libedit libicu libxml2 ncurses python3 zlib zstd

#---------------------------------------------------------------------

[depends]
actools
bzip2
cmake:forward
doxygen:forward
findutils
git:forward
grep
groff
groff-full:forward
gv:forward
gzip
infozip
libedit
libffi
libicu
libxml2:forward
lndir
ncurses
ocaml:forward
perl
python:forward
tcltk:forward
valgrind:forward
zlib

#---------------------------------------------------------------------

[build]
MANBASE=$PKGDIR_PROD/man
mkdir -p $MANBASE

rm -fr flang   tools/flang
rm -fr libclc  tools/libclc
rm -fr lld     tools/lld
rm -fr lldb    tools/lldb

#---------------------------------------------------------------------

BUILD32=
if [ "@$LACARCH" == "@glibc32" ]; then
    M=`uname -m`
    if [ "@$M" == "@x86_64" ]; then
        BUILD32="-DLLVM_BUILD_32_BITS=ON"
    fi
fi
     export BUILD32=$BUILD32
echo export BUILD32=$BUILD32

#---------------------------------------------------------------------

     export TOPDIR=`pwd`
     export PKGDIR_PROD=$PKGDIR_PROD
     export PKGDIR_SPECIAL=$PKGDIR_SPECIAL
     export BINDIR=$PKGDIR_PROD/bin
     export INCDIR=$PKGDIR_PROD/include
     export OLDINC=/$LACARCH/pkg/glibc/include
     export LACINCDIRS=$INCDIR:$PRODTREE/libicu/include
     export PATH=$BINDIR:$PATH

echo export TOPDIR=$TOPDIR
echo export PKGDIR_PROD=$PKGDIR_PROD
echo export PKGDIR_SPECIAL=$PKGDIR_SPECIAL
echo export BINDIR=$BINDIR
echo export INCDIR=$INCDIR
echo export OLDINC=$OLDINC
echo export LACINCDIRS=$LACINCDIRS
echo 'export PATH=$BINDIR:$PATH'

#---------------------------------------------------------------------

     export LACARCHBUILD=$LACARCHBUILD
     export LACDONTFIND="libffi,libunwind,llvm,llvmself"
     export LACFIXLECHROM=yes
     export LACSMPERRORPAUSE=1
     export LACSMPTRIES=2
     export USECCACHE=yes

echo export CCPAUSE=$CCPAUSE
echo export LACARCHBUILD=$LACARCHBUILD
echo export LACDONTFIND="$LACDONTFIND"
echo export LACFIXLECHROM=yes
echo export LACSLOWDOWN=$LACSLOWDOWN
echo export LACSMPERRORPAUSE=$LACSMPERRORPAUSE
echo export LACSMPEXTRANICE=$LACSMPEXTRANICE
echo export LACSMPTRIES=$LACSMPTRIES
echo export USECCACHE=$USECCACHE

#---------------------------------------------------------------------

mkdir -p $BINDIR $INCDIR

#---------------------------------------------------------------------

hash gcc g++
export CLANG_EXE=`which gcc`
export CLANGPP_EXE=`which g++`
export LACLLVMBOOT=no
export LACSTATICCXX=no

#---------------------------------------------------------------------

cd $TOPDIR                      || exit 1
rm -fr build                    || exit 1
mkdir  build                    || exit 1
cd     build                    || exit 1

echo `date` clang cmake start

export CMAKE_PREFIX_PATH=$PRODTREE/python3

CC=$CLANG_EXE CXX=$CLANGPP_EXE \
cmake -DCMAKE_INSTALL_PREFIX=$PKGDIR_PROD           \
      -DCMAKE_INSTALL_OLDINCLUDEDIR=$OLDINC         \
      -DCMAKE_BUILD_TYPE=Release                    \
      -DCMAKE_C_COMPILER=$CLANG_EXE                 \
      -DCMAKE_CXX_COMPILER=$CLANGPP_EXE             \
\
      -DCLANG_DEFAULT_CXX_STDLIB=libstdc++          \
      -DCLANG_DEFAULT_RTLIB=libgcc                  \
      -DLIBCXX_CXX_ABI=libstdc++                    \
      -DLLVM_DEFAULT_TARGET_TRIPLE=$LACARCHBUILD    \
      -DLLVM_ENABLE_LIBCXX=OFF                      \
      -DLLVM_TARGETS_TO_BUILD="host;AMDGPU"         \
      -DLLVM_ENABLE_PROJECTS="clang"                \
\
      -DHAVE_CXX_ATOMICS64_WITHOUT_LIB=ON           \
      -DHAVE_CXX_ATOMICS_WITHOUT_LIB=ON             \
\
      -DUSE_DEPRECATED_GCC_INSTALL_PREFIX=ON        \
      -DGCC_INSTALL_PREFIX=$PRODTREE/gcc            \
      -DLINK_POLLY_INTO_TOOLS=ON                    \
      -DWITH_POLLY=ON                               \
      $BUILD32                                      \
      -Wno-dev                                      \
      ../llvm                   || exit 1

echo `date` clang cmake end

#---------------------------------------------------------------------

echo `date` clang build start
smpmake
smpmake install
echo `date` clang build end

#---------------------------------------------------------------------

echo `date` clang wrapper start
cd $BINDIR
cp -p $PKGDIR_SPECIAL/wrap*.txt .
chmod 755             wrap*.txt

sed -e 's@\(.*ENV.*LACLLVMSELF.*=\).*@\n\1 "llvmself";@' \
    -i wrapclang.txt

for x in clang clang++
do
    trueifexe $x  && mv $x $x.bin
    touch               $x
    rm                  $x
    cp -p wrapclang.txt $x
done

rm wrapclang.txt
sed -e "s@\(.*ENV.*'CLANGC'.*=\).*@\n\1 'yes';@" \
    -i clang

#---------------------------------------------------------------------

pushd $PKGDIR_PROD
rm -fr xbin
mkdir  xbin
cd     xbin
cp -a $PKGDIR_SPECIAL/xbin/* .
chmod 755 *
popd
echo `date` clang wrapper end

#---------------------------------------------------------------------

DIR=$PRODTREE/xorg/lib
mkdir -p $DIR
cd       $DIR
rm -fr   lib*clang*.a
rm -fr   lib*LLVM*.a
ln -nsf  $PKGDIR_PROD/lib/*.a .

#---------------------------------------------------------------------

cd $TOPDIR
echo `date` Done

#---------------------------------------------------------------------

# Original URLs. These URLs were valid at one point, but may have died
# since then. If you download newer versions of tarballs [etc.], don't
# delete  the  original versions,  as you may not  be able  to replace
# them.

[urls]
url_debian  = Not clear
url_home    = http://llvm.org/
url_lfs     = Not checked yet
url_tarball = git               # See "technotes" in "cfg" file

#---------------------------------------------------------------------

[history]
250306 Added package. Started with 20.1.0.