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FFI: Add define to disable the FFI library.

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This commit is contained in:
Mike Pall 2010-11-30 21:56:57 +01:00
parent 4ed8a1931b
commit 0ffd06aba8
2 changed files with 13 additions and 0 deletions
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6
src/Makefile
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@ -88,6 +88,12 @@ BUILDMODE= mixed
# recompile with "make clean", followed by "make".
XCFLAGS=
#
# Permanently disable the FFI extension to reduce the size of the LuaJIT
# executable. But please consider that the FFI library is compiled-in,
# but NOT loaded by default. It only allocates any memory, if you actually
# make use of it.
#XCFLAGS+= -DLUAJIT_DISABLE_FFI
#
# Enable some upwards-compatible features from Lua 5.2 that are unlikely
# to break existing code (e.g. __pairs). Note that this does not provide
# full compatibility with Lua 5.2 at this time.

7
src/lj_arch.h
View File

@ -183,6 +183,13 @@
#define LJ_HASJIT 1
#endif
/* Disable or enable the FFI extension. */
#if defined(LUAJIT_DISABLE_FFI) || defined(LJ_ARCH_NOFFI)
#define LJ_HASFFI 0
#else
#define LJ_HASFFI 1
#endif
#if LJ_ARCH_ENDIAN == LUAJIT_BE
#define LJ_LE 0
#define LJ_BE 1