#!/usr/bin/env bash

patch -Np1 -i ../glibc-fhs-1.patch

patch -Np1 -i ../glibc-2.43-upstream_fixes-1.patch

mkdir -v build
cd build || return 1

echo "rootsbindir=/usr/sbin" > configparms

../configure --prefix=/usr                   \
             --disable-werror                \
             --disable-nscd                  \
             libc_cv_slibdir=/usr/lib        \
             --enable-stack-protector=strong \
             --enable-kernel=5.10

make

# sed '/test-installation/s@$(PERL)@echo not running@' -i ../Makefile
echo "Fix the Makefile to skip an outdated sanity check that fails with a modern Glibc configuration"
echo "sed /test-installation/s#\$\(PERL\)\ scripts/test-installation.pl#echo\ outdated_sanity_check_disabled# ../Makefile"
sed /test-installation/s#\$\(PERL\)\ scripts/test-installation.pl#echo\ outdated_sanity_check_disabled# ../Makefile
sed /test-installation/s#\$\(PERL\)\ scripts/test-installation.pl#echo\ outdated_sanity_check_disabled# -i ../Makefile

:>/tmp/glibc_make_check.log

if ! make check | tee /tmp/glibc_make_check.log
then
    grep ^FAIL /tmp/glibc_make_check.log | cut -d' ' -f 2 | while IFS= read -r failure
    do
        case ${failure} in
            io/tst-lchmod|io/tst-lchmod-time64)
                echo "known to fail"
            ;;
            nptl/tst-basic3)
                echo "discovered failing"
            ;;
            malloc/tst-malloc-too-large-malloc-hugetlb2)
                echo "discovered failing"
            ;;
            misc/tst-pidfd)
                echo "discovered failing"
            ;;
            *)
                echo "Failed on FAIL ${failure}"
                exit 1
            ;;
        esac
    done
fi

cat >> /etc/ld.so.conf << "EOF"
# Add an include directory
include /etc/ld.so.conf.d/*.conf
EOF

mkdir -pv /etc/ld.so.conf.d

cat > /etc/ld.so.conf.d/libc.conf << "EOF"
/usr/lib
/usr/local/lib
EOF

make install

sed '/RTLDLIST=/s@/usr@@g' -i /usr/bin/ldd

localedef -i C -f UTF-8 C.UTF-8
localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8
localedef -i de_DE -f ISO-8859-1 de_DE
localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
localedef -i de_DE -f UTF-8 de_DE.UTF-8
localedef -i el_GR -f ISO-8859-7 el_GR
localedef -i en_GB -f ISO-8859-1 en_GB
localedef -i en_GB -f UTF-8 en_GB.UTF-8
localedef -i en_HK -f ISO-8859-1 en_HK
localedef -i en_PH -f ISO-8859-1 en_PH
localedef -i en_US -f ISO-8859-1 en_US
localedef -i en_US -f UTF-8 en_US.UTF-8
localedef -i es_ES -f ISO-8859-15 es_ES@euro
localedef -i es_MX -f ISO-8859-1 es_MX
localedef -i fa_IR -f UTF-8 fa_IR
localedef -i fr_FR -f ISO-8859-1 fr_FR
localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
localedef -i fr_FR -f UTF-8 fr_FR.UTF-8
localedef -i is_IS -f ISO-8859-1 is_IS
localedef -i is_IS -f UTF-8 is_IS.UTF-8
localedef -i it_IT -f ISO-8859-1 it_IT
localedef -i it_IT -f ISO-8859-15 it_IT@euro
localedef -i it_IT -f UTF-8 it_IT.UTF-8
localedef -i ja_JP -f EUC-JP ja_JP
localedef -i ja_JP -f UTF-8 ja_JP.UTF-8
localedef -i nl_NL@euro -f ISO-8859-15 nl_NL@euro
localedef -i ru_RU -f KOI8-R ru_RU.KOI8-R
localedef -i ru_RU -f UTF-8 ru_RU.UTF-8
localedef -i se_NO -f UTF-8 se_NO.UTF-8
localedef -i ta_IN -f UTF-8 ta_IN.UTF-8
localedef -i tr_TR -f UTF-8 tr_TR.UTF-8
localedef -i zh_CN -f GB18030 zh_CN.GB18030
localedef -i zh_HK -f BIG5-HKSCS zh_HK.BIG5-HKSCS
localedef -i zh_TW -f UTF-8 zh_TW.UTF-8

make localedata/install-locales

cat > /etc/nsswitch.conf << "EOF"
# Begin /etc/nsswitch.conf

passwd: files systemd
group: files systemd
shadow: files systemd

hosts: mymachines resolve [!UNAVAIL=return] files myhostname dns
networks: files

protocols: files
services: files
ethers: files
rpc: files

# End /etc/nsswitch.conf
EOF

tar -xf ../../tzdata2026b.tar.gz

ZONEINFO=/usr/share/zoneinfo
mkdir -pv $ZONEINFO/{posix,right}

for tz in etcetera southamerica northamerica europe africa antarctica  \
          asia australasia backward; do
    zic -L /dev/null   -d $ZONEINFO       ${tz}
    zic -L /dev/null   -d $ZONEINFO/posix ${tz}
    zic -L leapseconds -d $ZONEINFO/right ${tz}
done

cp -v zone.tab zone1970.tab iso3166.tab $ZONEINFO
zic -d $ZONEINFO -p America/New_York
unset ZONEINFO tz

ln -sfv /usr/share/zoneinfo/America/New_York /etc/localtime