Compile with large-file support (LFS)

This adds preprocessor defines for _LARGEFILE_SOURCE and
_FILE_OFFSET_BITS=64 and a few others, fixing a bug that was reported on
gitter. This prevents issues when running fish on 32 bit systems that
have filesystems with 64 bit inodes.

CHANGELOG.rst

@@ -76,6 +76,7 @@ Resolved in 3.6.0
 - Fish calls external commands via the given path again instead of always making it absolute. This can be seen e.g. when you run a bash script and check ``$0`` (:issue:`9143`).
 - ``printf`` no longer tries to interpret the first argument as an option (:issue:`9132`).
 - ``string repeat`` no longer allocates the entire output at once, instead using chunks. This needs less memory and has less of a delay with long strings. Also it was possible to make fish crash by making it allocate more memory than the system had. (:issue:`9124`)
+- On 32-bit systems, globs like ``*`` might fail to print certain files, due to missing large file support. This has been fixed by enabling large file support.
 
 Completions
 ^^^^^^^^^^^

CMakeLists.txt

@@ -53,6 +53,12 @@ add_compile_options(-fno-exceptions)
 # Undefine NDEBUG to keep assert() in release builds.
 add_definitions(-UNDEBUG)
 
+# Enable large files on GNU.
+add_definitions(-D_LARGEFILE_SOURCE
+                -D_LARGEFILE64_SOURCE
+                -D_FILE_OFFSET_BITS=64
+                -D_ATFILE_SOURCE)
+
 # Hide the CMake Rules directories in Xcode projects.
 source_group("CMake Rules" REGULAR_EXPRESSION "^$")