From 12579a3ddacb736d8382d589fbac283deb7ccd03 Mon Sep 17 00:00:00 2001
From: Eric Hameleers <alien@slackware.com>
Date: Thu, 16 Apr 2020 15:26:41 +0000
Subject: chromium: allow building with a sysroot on older Slackwares

---
 chromium/build/chromium.SlackBuild | 39 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

(limited to 'chromium/build/chromium.SlackBuild')

diff --git a/chromium/build/chromium.SlackBuild b/chromium/build/chromium.SlackBuild
index e50d976f..e14f6276 100755
--- a/chromium/build/chromium.SlackBuild
+++ b/chromium/build/chromium.SlackBuild
@@ -490,6 +490,9 @@ else
   USE_PA=${USE_PA:-0}
 fi
 
+# Build Chromium using a debian sysroot for Slackware 14.2 or older:
+USE_SYSROOT=${USE_SYSROOT:-0}
+
 # By default the ffmpeg and other component libraries are built statically
 # into the chromium binary.  This takes more time at the linking stage but
 # will speed up the browser's startup.
@@ -595,6 +598,8 @@ case "$ARCH" in
              SLKLDFLAGS="-Wl,-z,notext"; LIBDIRSUFFIX=""
              DSSE="1"
              FFMPEG_ARCH="ia32"
+             SYSROOT_ARCH="i386"
+             SYSROOT_TARGET="i386"
              PKGARCH="$ARCH"
              ;;
   x86_64)    # Ensure that 32bit libraries are found first if we cross-compile:
@@ -602,11 +607,15 @@ case "$ARCH" in
                SLKCFLAGS="-O2"
                SLKLDFLAGS="-L/usr/lib"; LIBDIRSUFFIX=""
                FFMPEG_ARCH="ia32"
+               SYSROOT_ARCH="i386"
+               SYSROOT_TARGET="i386"
                PKGARCH="i586"
              else
                SLKCFLAGS="-O2 -fPIC"
                SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
                FFMPEG_ARCH="x64"
+               SYSROOT_ARCH="amd64"
+               SYSROOT_TARGET="x86_64"
                PKGARCH="$ARCH"
              fi
              #DSSE="0"
@@ -618,6 +627,8 @@ case "$ARCH" in
              # Widevine not supported (no binary library available):
              USE_CDM=0
              FFMPEG_ARCH="arm"
+             SYSROOT_ARCH="arm"
+             SYSROOT_TARGET="arm"
              PKGARCH="$ARCH"
              ;;
   armv6hl)   SLKCFLAGS="-O2 -march=armv6 -mfpu=vfp -mfloat-abi=hard"
@@ -626,6 +637,8 @@ case "$ARCH" in
              # Widevine not supported (no binary library available):
              USE_CDM=0
              FFMPEG_ARCH="arm"
+             SYSROOT_ARCH="arm"
+             SYSROOT_TARGET="arm"
              PKGARCH="$ARCH"
              ;;
   *)         SLKCFLAGS=${SLKCFLAGS:-"O2"}
@@ -634,6 +647,8 @@ case "$ARCH" in
              # Widevine not supported by default:
              USE_CDM=0
              FFMPEG_ARCH="$ARCH"
+             SYSROOT_ARCH="$ARCH"
+             SYSROOT_TARGET="$ARCH"
              PKGARCH="$ARCH"
              ;;
 esac
@@ -819,6 +834,7 @@ echo Building ...
 [ ${USE_HOTWORD} -eq 1 ] && do_hotword=true || do_hotword=false
 [ ${USE_NACL} -eq 1 ] && do_nacl=true || do_nacl=false
 [ ${USE_PA} -eq 1 ] && do_pa=true || do_pa=false
+[ ${USE_SYSROOT} -eq 1 ] && do_sysroot=true || do_sysroot=false
 [ ${FFMPEG_HEVC} -eq 1 ] && do_hevc=true || do_hevc=false 
 
 export LDFLAGS="$SLKLDFLAGS"
@@ -875,7 +891,7 @@ _chromium_conf=(
     'use_kerberos=false'
     'use_lld=true'
     "use_pulseaudio=${do_pa}"
-    'use_sysroot=false'
+    "use_sysroot=${do_sysroot}"
     "extra_cxxflags=\"${CXXFLAGS}\""
     "extra_ldflags=\"${LDFLAGS}\""
 )
@@ -968,6 +984,27 @@ if [ ${USE_NACL} -eq 1 ]; then
     2>&1 | tee $OUTPUT/nacl_dl-${PRGNAM}.log
 fi
 
+if [ ${USE_SYSROOT} -eq 1 ]; then
+  # Download a sysroot image:
+  python2 build/linux/sysroot_scripts/install-sysroot.py --arch=${SYSROOT_ARCH}
+
+  # Take care of Debian/Ubuntu related missing header issues:
+  SYSROOTDIR=$(basename $(ls build/linux/ |grep ${SYSROOT_ARCH}-sysroot))
+
+  ln -s ../../lib/${SYSROOT_TARGET}-linux-gnu/glib-2.0/include/glibconfig.h \
+    build/linux/${SYSROOTDIR}/usr/include/glib-2.0/glibconfig.h
+  ln -s ../../../lib/${SYSROOT_TARGET}-linux-gnu/dbus-1.0/include/dbus/dbus-arch-deps.h \
+    build/linux/${SYSROOTDIR}/usr/include/dbus-1.0/dbus/dbus-arch-deps.h
+  ln -s ../../lib/${SYSROOT_TARGET}-linux-gnu/graphene-1.0/include/graphene-config.h \
+    build/linux/${SYSROOTDIR}/usr/include/graphene-1.0/graphene-config.h
+
+  # Take care of Debian/Ubuntu related linker issues:
+  echo "/usr/lib/${SYSROOT_TARGET}-linux-gnu/nss" >> \
+    build/linux/${SYSROOTDIR}/etc/ld.so.conf.d/${SYSROOT_TARGET}-linux-gnu.conf
+  ln -s libsqlite3.so.0 \
+    build/linux/${SYSROOTDIR}/usr/lib/${SYSROOT_TARGET}-linux-gnu/libsqlite3.so
+fi
+
 # --- Compile --- #
 
 # Final link uses lots of file descriptors.
-- 
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