libjasper: allow in-source builds

Author: letmaik

.github/scripts/build-linux.sh

@@ -62,7 +62,8 @@ pushd jasper-version-4.2.5
 mkdir cmake_build
 cd cmake_build
 cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release \
-      -DJAS_ENABLE_OPENGL=OFF -DJAS_ENABLE_DOC=OFF -DJAS_ENABLE_PROGRAMS=OFF ..
+      -DJAS_ENABLE_OPENGL=OFF -DJAS_ENABLE_DOC=OFF -DJAS_ENABLE_PROGRAMS=OFF \
+      -DALLOW_IN_SOURCE_BUILD=ON ..
 make install -j$(nproc)
 popd
 

.github/scripts/build-macos.sh

@@ -69,7 +69,8 @@ mkdir cmake_build
 cd cmake_build
 cmake -DCMAKE_INSTALL_PREFIX=$LIB_INSTALL_PREFIX -DCMAKE_BUILD_TYPE=Release \
       -DJAS_ENABLE_OPENGL=OFF -DJAS_ENABLE_DOC=OFF -DJAS_ENABLE_PROGRAMS=OFF \
-      -DCMAKE_INSTALL_NAME_DIR=$LIB_INSTALL_PREFIX/lib ..
+      -DCMAKE_INSTALL_NAME_DIR=$LIB_INSTALL_PREFIX/lib \
+      -DALLOW_IN_SOURCE_BUILD=ON ..
 make install -j
 popd