gdal: add sqlite3 and expat dependencies (#605)

projects/gdal/Dockerfile

@@ -16,9 +16,17 @@
 
 FROM gcr.io/oss-fuzz-base/base-builder
 MAINTAINER even.rouault@spatialys.com
-RUN apt-get update && apt-get install -y make autoconf automake libtool g++
+# curl needed to fetch sqlite3
+# tcl needed to build sqlite3
+# docbook2x needed o build expat
+RUN apt-get update && apt-get install -y make autoconf automake libtool g++ curl tcl docbook2x
 # libpng12-dev libjpeg-dev libgif-dev liblzma-dev libgeos-dev libcurl4-gnutls-dev libproj-dev libxml2-dev libexpat-dev libxerces-c-dev libnetcdf-dev netcdf-bin libpoppler-dev libspatialite-dev libhdf4-alt-dev libhdf5-serial-dev  poppler-utils libfreexl-dev unixodbc-dev libwebp-dev libepsilon-dev libpcre3-dev
 # libpodofo-dev  libcrypto++-dev
 RUN git clone --depth 1 https://github.com/OSGeo/gdal gdal
+RUN git clone --depth 1 https://github.com/libexpat/libexpat gdal/libexpat
+RUN mkdir gdal/sqlite3 && \
+    cd gdal/sqlite3 && \
+    curl 'https://www.sqlite.org/src/tarball?uuid=trunk' -o sqlite3.tar.gz && \
+    tar xzf sqlite3.tar.gz
 WORKDIR gdal
 COPY build.sh $SRC/

projects/gdal/build.sh

@@ -15,10 +15,42 @@
 #
 ################################################################################
 
-# build project
+# build expat
+cd libexpat/expat
+./buildconf.sh
+./configure --disable-shared --prefix=$SRC/install
+make clean -s
+make -j$(nproc) -s
+make install
+cd ../..
+
+# build sqlite3
+# Taken from https://github.com/google/oss-fuzz/blob/master/projects/sqlite3/build.sh
+
+export ASAN_OPTIONS=detect_leaks=0
+
+# Limit max length of data blobs and sql queries to prevent irrelevant OOMs.
+# Also limit max memory page count to avoid creating large databases.
+OLD_CFLAGS=$CFLAGS
+export CFLAGS="$CFLAGS -DSQLITE_MAX_LENGTH=128000000 \
+               -DSQLITE_MAX_SQL_LENGTH=128000000 \
+               -DSQLITE_MAX_MEMORY=25000000 \
+               -DSQLITE_PRINTF_PRECISION_LIMIT=1048576 \
+               -DSQLITE_DEBUG=1 \
+               -DSQLITE_MAX_PAGE_COUNT=16384" 
+
+cd sqlite3
+./configure --disable-shared --prefix=$SRC/install
+make clean -s
+make -j$(nproc) -s
+make install
+cd ..
+export CFLAGS=$OLD_CFLAGS
+
+# build gdal
 cd gdal
 export LDFLAGS=${CXXFLAGS}
-./configure --without-libtool
+./configure --without-libtool --with-expat=$SRC/install --with-sqlite3=$SRC/install
 make clean -s
 make -j$(nproc) -s