From faafd4eee0d1cf5287992dbdbc57d29e0d9a6fba Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Sat, 10 Aug 2019 12:58:21 +0100
Subject: [PATCH] try disabling IM for oss-fuzz

libvips has to use ReadImage() when it opens an image via MagickCore,
and this can allocate very large amounts of memory, killing the fuzzer.

IM is already part of oss-fuzz, so we are not gaining much by
replicating that work. This patch attempts to disable IM for fuzzing tests.
---
 .travis.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 82b5a8a1..83d301af 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ before_script:
     --disable-dependency-tracking
     --with-jpeg-includes=$JPEG/include
     --with-jpeg-libraries=$JPEG/lib
+    --with-magick=$WITH_MAGICK
   - make -j$JOBS -s 
 script:
   - make -j$JOBS -s -k V=0 VERBOSE=1 check
@@ -30,6 +31,7 @@ matrix:
         - PYVIPS_VERSION=master
         - JPEG=/usr
         - JOBS=`nproc`
+        - WITH_MAGICK=yes
       cache: ccache
 
     - os: linux
@@ -41,6 +43,7 @@ matrix:
         - PYVIPS_VERSION=master
         - JPEG=/usr
         - JOBS=`nproc`
+        - WITH_MAGICK=no
         - CFLAGS="-fsanitize=address,undefined -fno-omit-frame-pointer -fopenmp -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION"
         - LDFLAGS="-fsanitize=address,undefined -dynamic-asan -fopenmp=libiomp5"
         - ASAN_DSO=/usr/local/clang-7.0.0/lib/clang/7.0.0/lib/linux/libclang_rt.asan-x86_64.so
@@ -66,6 +69,7 @@ matrix:
         - PYVIPS_VERSION=master
         - JPEG=/usr/local
         - JOBS="`sysctl -n hw.ncpu`"
+        - WITH_MAGICK=yes
         - PATH="/usr/local/opt/ccache/libexec:$PATH"
         - HOMEBREW_NO_AUTO_UPDATE=1
       cache: ccache