Identifiers can start and/or contain '.' in *.S

    modified version of the old one which don't allow '.'
    in #define Identifiers. This allow correctly preprocess
    the following code in *.S

        #define SRC(y...)               \
        9999: y;                        \
        .section __ex_table, "a";       \
        .long 9999b, 6001f      ;       \
        // .previous

        SRC(1: movw (%esi), %bx)
        6001:

    A test included.

1 files changed, 3 insertions, 1 deletions

diff --git a/tcc.h b/tcc.h
index 0200207..2e1e32f 100644
--- a/tcc.h
+++ b/tcc.h
@@ -957,7 +957,9 @@ struct TCCState {
 
 #define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x)
 #define TOK_ASM_int TOK_INT
-#define TOK_ASM_weak TOK_WEAK1
+#define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x)
+#define TOK_ASMDIR_FIRST TOK_ASMDIR_byte
+#define TOK_ASMDIR_LAST TOK_ASMDIR_section
 
 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
 /* only used for i386 asm opcodes definitions */