5 files changed, 5 insertions, 0 deletions
diff --git a/travis/linux_clang/install.sh b/travis/linux_clang/install.sh
index f4b1ad12..50c02882 100755
--- a/travis/linux_clang/install.sh
+++ b/travis/linux_clang/install.sh
@@ -3,6 +3,7 @@
 set -e
 
 export CCACHE_CPP2=yes
+export PROJ_DB_CACHE_DIR="$HOME/.ccache"
 
 # -fno-use-cxa-atexit is needed to build with -coverage
 CC="ccache clang" CXX="ccache clang++" CFLAGS="-Werror -fsanitize=address -fno-use-cxa-atexit" CXXFLAGS="-Werror -fsanitize=address -fno-use-cxa-atexit" LDFLAGS="-fsanitize=address" ./travis/install.sh
diff --git a/travis/linux_gcc/install.sh b/travis/linux_gcc/install.sh
index ad5caa9c..17f07c56 100755
--- a/travis/linux_gcc/install.sh
+++ b/travis/linux_gcc/install.sh
@@ -3,5 +3,6 @@
 set -e
 
 export CCACHE_CPP2=yes
+export PROJ_DB_CACHE_DIR="$HOME/.ccache"
 
 CC="ccache gcc" CXX="ccache g++" CFLAGS="-std=c89 -Werror" CXXFLAGS="-Werror" ./travis/install.sh
diff --git a/travis/linux_gcc7/install.sh b/travis/linux_gcc7/install.sh
index b957b927..dbd1f076 100755
--- a/travis/linux_gcc7/install.sh
+++ b/travis/linux_gcc7/install.sh
@@ -3,5 +3,6 @@
 set -e
 
 export CCACHE_CPP2=yes
+export PROJ_DB_CACHE_DIR="$HOME/.ccache"
 
 CC="ccache $CC" CXX="ccache $CXX" CFLAGS="-std=c89 -Werror $CFLAGS" CXXFLAGS="-Werror $CXXFLAGS" ./travis/install.sh
diff --git a/travis/mingw32/install.sh b/travis/mingw32/install.sh
index d38f289f..80d591f4 100755
--- a/travis/mingw32/install.sh
+++ b/travis/mingw32/install.sh
@@ -3,6 +3,7 @@
 set -e
 
 export CCACHE_CPP2=yes
+export PROJ_DB_CACHE_DIR="$HOME/.ccache"
 
 # prepare wine environment
 wine64 cmd /c dir
diff --git a/travis/osx/install.sh b/travis/osx/install.sh
index 46bdbb22..4869ee65 100755
--- a/travis/osx/install.sh
+++ b/travis/osx/install.sh
@@ -3,5 +3,6 @@
 set -e
 
 export CCACHE_CPP2=yes
+export PROJ_DB_CACHE_DIR="$HOME/.ccache"
 
 CC="ccache clang" CXX="ccache clang++" CFLAGS="-Werror -O2" CXXFLAGS="-Werror -O2" ./travis/install.sh