libraries/physfs: Specify cmake's path to source.

Disable some warning-as-errors

Signed-off-by: Matteo Bernardini <ponce@slackbuilds.org>

libraries/physfs/physfs.SlackBuild

@@ -72,14 +72,14 @@ find -L . \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
 cmake \
-  -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
+  -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS -Wno-error=maybe-uninitialized" \
   -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
   -DPHYSFS_BUILD_SHARED=ON \
   -DPHYSFS_BUILD_STATIC=OFF \
   -DPHYSFS_BUILD_TEST=OFF \
   -DCMAKE_BUILD_TYPE=Release \
   -DCMAKE_INSTALL_PREFIX=/usr \
-  -DLIB_SUFFIX:STRING=${LIBDIRSUFFIX}
+  -DLIB_SUFFIX:STRING=${LIBDIRSUFFIX} .
 
 make
 make install DESTDIR=$PKG